WorldWideScience

Sample records for floodplain fish emigration

  1. Use of seasonal freshwater wetlands by fishes in a temperate river floodplain

    Science.gov (United States)

    Henning, Julie A.; Gresswell, Robert E.; Fleming, Ian A.

    2007-01-01

    This study examined the use of freshwater wetland restoration and enhancement projects (i.e. non-estuarine wetlands subject to seasonal drying) by fish populations. To quantify fish use of freshwater emergent wetlands and assess the effect of wetland enhancement (i.e. addition of water control structures), two enhanced and two unenhanced emergent wetlands were compared, as well as two oxbow habitats within the Chehalis River floodplain. Eighteen fish species were captured using fyke nets and emigrant traps from January to the beginning of June, with the most abundant being three-spined stickleback Gasterosteus aculeatus and Olympic mudminnow Novumbra hubbsi. Coho salmon Oncorhynchus kisutch was the dominant salmonid at all sites. Enhanced wetlands, with their extended hydroperiods, had significantly higher abundances of yearling coho salmon than unenhanced wetlands. Both enhanced and unenhanced emergent wetlands yielded higher abundances of non-game native fishes than oxbow habitats. Oxbow habitats, however, were dominated by coho salmon. Fish survival in the wetland habitats was dependent on emigration to the river before dissolved oxygen concentrations decreased and wetlands became isolated and stranding occurred. This study suggests that wetland enhancement projects with an outlet to the river channel appear to provide fishes with important temporary habitats if they have the opportunity to leave the wetland as dissolved oxygen levels deteriorate.

  2. Floods and fish : recruitment and distribution of fish in the Volga River floodplain

    NARCIS (Netherlands)

    Górski, K.

    2010-01-01

    Natural river floodplains are among the most diverse and productive ecosystems on Earth and provide key habitats for foraging, spawning and as a nursery for many riverine fish species. Periodic flooding plays a principal role in the ecological processes in floodplain systems resulting in high produc

  3. Fish mediate high food web connectivity in the lower reaches of a tropical floodplain river.

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    Jardine, Timothy D; Pusey, Bradley J; Hamilton, Stephen K; Pettit, Neil E; Davies, Peter M; Douglas, Michael M; Sinnamon, Vivian; Halliday, Ian A; Bunn, Stuart E

    2012-03-01

    High levels of hydrological connectivity during seasonal flooding provide significant opportunities for movements of fish between rivers and their floodplains, estuaries and the sea, possibly mediating food web subsidies among habitats. To determine the degree of utilisation of food sources from different habitats in a tropical river with a short floodplain inundation duration (~2 months), stable isotope ratios in fishes and their available food were measured from three habitats (inundated floodplain, dry season freshwater, coastal marine) in the lower reaches of the Mitchell River, Queensland (Australia). Floodplain food sources constituted the majority of the diet of large-bodied fishes (barramundi Lates calcarifer, catfish Neoarius graeffei) captured on the floodplain in the wet season and for gonadal tissues of a common herbivorous fish (gizzard shad Nematalosa come), the latter suggesting that critical reproductive phases are fuelled by floodplain production. Floodplain food sources also subsidised barramundi from the recreational fishery in adjacent coastal and estuarine areas, and the broader fish community from a freshwater lagoon. These findings highlight the importance of the floodplain in supporting the production of large fishes in spite of the episodic nature and relatively short duration of inundation compared to large river floodplains of humid tropical regions. They also illustrate the high degree of food web connectivity mediated by mobile fish in this system in the absence of human modification, and point to the potential consequences of water resource development that may reduce or eliminate hydrological connectivity between the river and its floodplain.

  4. Reproductive biology of freshwater fishes from the Venezuelan floodplains.

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    Guerrero, H Y; Cardillo, E; Poleo, G; Marcano, D

    2009-03-01

    This review describes the endocrine changes that occur during the annual reproductive cycle of Pygocentrus cariba, Pimelodus blochii, and Oxydoras sifontesi and their relationships with the environmental characteristics of Venezuelan floodplains. Most reproductive studies of teleosts have focused on changes that occur during annual cycles in temperate species but, in tropical fish, this has been examined less frequently. P. cariba, P. blochii, and O. sifontesi are seasonal breeders widely distributed along the Orinoco River. Under natural conditions they have an annual gonadal cycle closely related to changes in the annual hydrology cycle of the Orinoco River which defines two seasons on the floodplain: inundation and isolation. The reproductive cycle of these species seems to be controlled by cues from the external environment. Relevant data about gonadal maturation, for example gonadosomatic index and sexual hormones secretion, are contrasted. The role of catecholamines in neuroendocrine control of the reproductive axis is also considered in this work.

  5. Importance of floodplain connectivity to fish populations in the Apalachicola River, Florida

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    Burgess, O.T.; Pine, William E.; Walsh, S.J.

    2013-01-01

    Floodplain habitats provide critical spawning and rearing habitats for many large-river fishes. The paradigm that floodplains are essential habitats is often a key reason for restoring altered rivers to natural flow regimes. However, few studies have documented spatial and temporal utilization of floodplain habitats by adult fish of sport or commercial management interest or assessed obligatory access to floodplain habitats for species' persistence. In this study, we applied telemetry techniques to examine adult fish movements between floodplain and mainstem habitats, paired with intensive light trap sampling of larval fish in these same habitats, to assess the relationships between riverine flows and fish movement and spawning patterns in restored and unmodified floodplain distributaries of the Apalachicola River, Florida. Our intent is to inform resource managers on the relationships between the timing, magnitude and duration of flow events and fish spawning as part of river management actions. Our results demonstrate spawning by all study species in floodplain and mainstem river habitat types, apparent migratory movements of some species between these habitats, and distinct spawning events for each study species on the basis of fish movement patterns and light trap catches. Additionally, Micropterus spp., Lepomis spp. and, to a lesser degree, Minytrema melanops used floodplain channel habitat that was experimentally reconnected to the mainstem within a few weeks of completing the restoration. This result is of interest to managers assessing restoration activities to reconnect these habitats as part of riverine restoration programmes globally.

  6. Community based fish culture in the public and private floodplains of Bangladesh

    NARCIS (Netherlands)

    Mahfuzul Haque, A.B.

    2015-01-01

    Seasonal floodplains are water bodies that retain water for 5-6 months during which they are suitable to grow fish and other aquatic animals. Out of 2.8 million ha of medium and deep-flooded areas, about 1.5 million ha are estimated to be suitable for Community-Based Fish Culture (CBFC). WorldFish h

  7. Community based fish culture in the public and private floodplains of Bangladesh

    NARCIS (Netherlands)

    Mahfuzul Haque, A.B.

    2015-01-01

    Seasonal floodplains are water bodies that retain water for 5-6 months during which they are suitable to grow fish and other aquatic animals. Out of 2.8 million ha of medium and deep-flooded areas, about 1.5 million ha are estimated to be suitable for Community-Based Fish Culture (CBFC). WorldFish h

  8. Community based fish culture in the public and private floodplains of Bangladesh

    NARCIS (Netherlands)

    Mahfuzul Haque, A.B.

    2015-01-01

    Seasonal floodplains are water bodies that retain water for 5-6 months during which they are suitable to grow fish and other aquatic animals. Out of 2.8 million ha of medium and deep-flooded areas, about 1.5 million ha are estimated to be suitable for Community-Based Fish Culture (CBFC). WorldFish

  9. Hierarchy in factors affecting fish biodiversity in floodplain lakes of the Mississippi Alluvial Valley

    Science.gov (United States)

    Dembkowski, D.J.; Miranda, L.E.

    2012-01-01

    River-floodplain ecosystems offer some of the most diverse and dynamic environments in the world. Accordingly, floodplain habitats harbor diverse fish assemblages. Fish biodiversity in floodplain lakes may be influenced by multiple variables operating on disparate scales, and these variables may exhibit a hierarchical organization depending on whether one variable governs another. In this study, we examined the interaction between primary variables descriptive of floodplain lake large-scale features, suites of secondary variables descriptive of water quality and primary productivity, and a set of tertiary variables descriptive of fish biodiversity across a range of floodplain lakes in the Mississippi Alluvial Valley of Mississippi and Arkansas (USA). Lakes varied considerably in their representation of primary, secondary, and tertiary variables. Multivariate direct gradient analyses indicated that lake maximum depth and the percentage of agricultural land surrounding a lake were the most important factors controlling variation in suites of secondary and tertiary variables, followed to a lesser extent by lake surface area. Fish biodiversity was generally greatest in large, deep lakes with lower proportions of watershed agricultural land. Our results may help foster a holistic approach to floodplain lake management and suggest the framework for a feedback model wherein primary variables can be manipulated for conservation and restoration purposes and secondary and tertiary variables can be used to monitor the success of such efforts. ?? 2011 Springer Science+Business Media B.V.

  10. Spatial Heterogeneity in Water Quality across a Restored Floodplain: Implications for Fish and Those Who Care About Them

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    Mount, J. F.; Ahearn, D. S.; Gallo, E. L.; Jeffres, C.

    2005-05-01

    High resolution spatial monitoring of floodwaters across an experimental floodplain in Central California has revealed patterns in dissolved organic carbon, chlorophyll-a, and nutrients which may have ramifications for local biota and future floodplain restorations. In 2004, seven sites across a 40 ha restored floodplain were monitored before and after 3 major floods. Additionally, in 2005, a multi-parameter sonde with GPS capabilities was used to create a high-resolution water quality map of the floodplain. Floods acted to reset, homogenize, and push productive antecedent waters across the floodplain. Productivity was greatest in shallow areas shortly after storms. As water stagnated on the floodplain deep water areas became more productive with chlorophyll-a levels reaching 17 μg l-1. Concurrently, vegetated shallow areas released dissolved organic carbon and nutrients and became hypoxic as algae senesced. A parallel fish enclosure study revealed that fish growth was greatest in shallow areas shortly after storms. The fish enclosed in deepwater areas grew faster as shallow water habitat began to decline. Habitat heterogeneity drives water quality variability across the floodplain which in turn influences the local biota, such heterogeneity is important for healthy ecosystem function and should be an integral part of future floodplain restorations.

  11. The effect of seasonality on fish species composition and abundance in Rungan river floodplain, Palangkaraya, Central Kalimantan

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    BAMBANG SULISTIYARTO

    2007-10-01

    Full Text Available Tropical floodplain rivers are home to the largest fraction of freshwater fish diversity and as such should be a focal point of fish conservation efforts. The aim of this study was to inventory of the fish fauna and analyzing the effect of seasonality on fish species composition and abundance in the Rungan river floodplain at Palangkaraya Municipality. The results of this study provide background data for conserving fish resources. Fishes were sampled at monthly intervals between May 2005 and April 2006 with gillnets of standardized dimensions with several mesh sizes. These were carried out at three stations with different habitat type, includes forested swamp, opened swamp, and river. A total of 4278 fishes were collected consisting of 50 species and 19 families. Seasonality effects on fish species composition and abundance in forested swamp and river. Fish species composition and abundance in opened swamp tend not to drive by seasonality.

  12. Effects of hatchery fish density on emigration, growth, survival, and predation risk of natural steelhead parr in an experimental stream channel

    Science.gov (United States)

    Tatara, Christopher P.; Riley, Stephen C.; Berejikian, Barry A.

    2011-01-01

    Hatchery supplementation of steelhead Oncorhynchus mykiss raises concerns about the impacts on natural populations, including reduced growth and survival, displacement, and increased predation. The potential risks may be density dependent.We examined how hatchery stocking density and the opportunity to emigrate affect the responses of natural steelhead parr in an experimental stream channel and after 15 d found no density-dependent effects on growth, emigration, or survival at densities ranging from 1-6 hatchery parr/m2. The opportunity for steelhead parr to emigrate reduced predation by coastal cutthroat trout O. clarkii clarkii on both hatchery and natural steelhead parr. The cutthroat trout exhibited a type-I functional response (constant predation rate with increased prey density) for the hatchery and composite populations. In contrast, the predation rate on natural parr decreased as hatchery stocking density increased. Supplementation with hatchery parr at any experimental stocking density reduced the final natural parr density. This decline was explained by increased emigration fromthe supplemented groups. Natural parr had higher mean instantaneous growth rates than hatchery parr. The proportion of parr emigrating decreased as parr size increased over successive experimental trials. Smaller parr had lower survival and suffered higher predation. The final density of the composite population, a measure of supplementation effectiveness, increased with the hatchery steelhead stocking rate. Our results indicate that stocking larger hatchery parr (over 50 d postemergence) at densities within the carrying capacity would have low short-term impact on the growth, survival, and emigration of natural parr while increasing the density of the composite population; in addition, a stocking density greater than 3 fish/m2 might be a good starting point for the evaluation of parr stocking in natural streams.

  13. Food resource partitioning in a fish community of the central Amazon floodplain

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    Bernard de Mérona

    Full Text Available Diets of most of fish species inhabiting a floodplain lake in central Amazonia were studied over a two years and half period. Based on the percentage of relative occurrence of 11 major food categories a classification of species in 11 feeding guilds is proposed. Many species were found to be specialized feeders. Fish, detritus and insects were the most important food resources supporting the fish community in both seasons, but the proportions of fruits, invertebrates and fish were reduced during the low water season. At the community level mean diet overlap between species was low, suggesting efficient resource partitioning within the community. However mean overlap between unspecialized feeders was high. Based on the 23 most abundant species belonging to the different feeding guilds, there was no difference in mean overlap between seasons. Whereas individual species exhibited diet changes between high water and low water seasons, there was no general pattern of seasonal change within feeding guilds.

  14. The influence of flood pulse on fish communities of floodplain canals in the Middle Solimões River, Brazil

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    Raniere G. C. Sousa

    Full Text Available The functioning of large river systems with adjacent floodplains is strongly influenced by the flood pulse. This phenomenon is the main structuring force for the biota, including fish communities that use floodplain environments for spawning, feeding, nursery and refuge. In floodplains and in the entire basin, the volume of water controls internal flows. During rising water, the high discharge of the river acts as a natural barrier to the canals that connect floodplain lakes and the Solimões River, because the water flows from river to lake. During the dry period, there is a reduction of discharge and the water flow is reversed or stationary. These canals are environments with distinct ecological characteristics such as differentiated limnology and water level variation intensely affected by the hydrological cycle. Therefore, we surveyed the influence of the flood pulse on fish communities that inhabit two canals that connect floodplain lakes to the Middle Solimões River. Particularly, we evaluated the hypothesis that the Solimões River flow direction is not perfectly parallel to its banks, which creates peripheral flows that direct water from the rivers to the floodplain lake canals. Our analysis indicated that the seasonal pattern is stronger than the spatial. Beside this, we observed that the positions of the canals in relation to the main river flow somehow affect the fish assemblages. Finally, we conclude that the flood pulse is the main structuring force acting on these fish communities.

  15. Condition factor in nine species of fish of the Characidae family in the upper Paraná River floodplain, Brazil

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    LIZAMA M. DE LOS A. P.

    2002-01-01

    Full Text Available The condition factor for nine species of tropical freshwater fish of the Characidae family in the upper Paraná River floodplain is described. Fish were caught over a period of 12 months (February 1993 to March 1994. Knowledge of the nine species is important for adequate management and maintenance of the biological equilibrium of the ecosystem.

  16. The status of limnophilic fish and the need for conservation in floodplains along the lower Rhine, a large regulated river

    NARCIS (Netherlands)

    Grift, R.E.; Buijse, A.D.; Van Geest, G.J.

    2006-01-01

    Recovery of the fish community of the river Rhine focussed mainly on the return of migratory species, in particular the Atlantic Salmon, Salmo salar, and to a lesser extent on rheophilic fish species. Several limnophilic species that characterize remote parts of the floodplains are, however, also en

  17. Patterns of habitat segregation among large fishes in a Venezuelan floodplain river

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    Craig A. Layman

    Full Text Available Distribution and abundance of large fishes (SL>100 mm in the río Cinaruco, a floodplain river in the Venezuelan llanos, were examined by gill net sampling in four habitat types: sand banks, backwater creeks, floodplain lagoons, and river channel. Sampling was standardized using nets (25 m x 2 m of three mesh sizes set for 24-h periods. Based on data from >10,000 hours of gill netting over three years, there were significant differences in assemblage composition among the four habitats. Pair-wise comparisons suggested differences in assemblage composition between all pairs of habitats except creeks and lagoons. Differences in assemblage composition likely arose from species-specific habitat affinities. For example, 21 taxa were collected from both creeks and lagoons, but not from sand banks or the main river channel; each of these 21 taxa were associated with particular features characteristic of creeks and lagoons (e.g. abundant detritus. Assemblage structure also could be influenced by predation or other biological interactions, but mechanistic experiments are needed to evaluate this hypothesis. Assemblage composition was highly variable within all habitat types, likely the result of spatial and temporal heterogeneity associated with seasonal hydrology. Long distance migrations by prochilodontids and other taxa contributed to higher CPUE during the rising-water period of May 2002. Data from this study will provide a baseline to assess changes in the abundance and distribution of large-bodied fishes in response to increasing impacts from illegal commercial fishing in this region.

  18. Fish assemblage dynamics in a Neotropical floodplain relative to aquatic macrophytes and the homogenizing effect of a flood pulse

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    Gomes, L.C.; Bulla, C. K.; Agostinho, A. A.; Vasconcelos, L. P.; Miranda, Leandro E.

    2012-01-01

    The presence of aquatic macrophytes is a key factor in the selection of habitats by fish in floodplain lakes because these plants enhance the physical and biological complexities of aquatic habitats. The seasonal flood pulse may influence this interaction, but there is no information in the literature about the effects that flood events may have on macrophytes assemblages and its associated effects on fish assemblages. Thus, this article aimed to investigate whether species richness, evenness and similarities in fish assemblage composition differed between littoral areas vegetated with macrophytes and unvegetated areas, before and after a flood. We sampled three lakes in the floodplain of the upper Paraná River basin. Sampling was conducted before (December 2004 and January 2005) and after (early March, late March and May 2005) a flood event. Overall, species richness and evenness were higher in macrophytes-covered areas. Before the flood, the composition of fish assemblages was distinct when comparing vegetated and unvegetated areas. After the flood, the similarity in fish assemblage composition was higher, indicating a homogenization effect of floods for fish inhabiting littoral areas of floodplain lakes. After the flood, opportunistic species dominated the fish assemblages in aquatic macrophytes, apparently restructuring assemblages in the littoral, restarting a succession process. Thus, the observed homogenization effect of the flood could minimize biological interactions and could induce fish assemblages to begin a new process of structurization.

  19. The importance of flooded terrestrial habitats for larval fish in a semi-natural large floodplain (Volga, Russian Federation)

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    Gorski, Konrad; Leeuw, De Joep; Winter, Hendrik; Khoruzhaya, Victoria; Boldyrev, Vasily; Vekhov, Dmitry; Nagelkerke, Leo

    2016-01-01

    We assessed the importance of flooded terrestrial habitats for fish larvae in a semi-natural large floodplain (Volga, Russian Federation) by comparing abundances at the shoreline of permanent waterbodies with flooded terrestrial habitats. We found that overall larval abundance at the shoreline of

  20. The Influence of Community Management Agreements on Household Economic Strategies : Cattle Grazing and Fishing Agreements on the Lower Amazon Floodplain

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    David G. McGrath

    2007-10-01

    Full Text Available While the organizational dynamics of collective management systems have received much attention, relatively little work has focused on how households adapt their economic strategies in response to collective management regulations that impose constraints on the range of options available to households. In this paper we investigate the evolving interaction between household management strategies and collective management regulations for one or both of two ecologically interdependent floodplain resources, lake fisheries and seasonally inundated grasslands. Smallholder management strategies involve varying combinations of three main activities each associated with one of three main floodplain habitats: annual cropping on river levees, cattle ranching on natural grasslands and fishing in lakes. These three activities play complementary roles in the household economy. Annual cropping is both subsistence and market oriented, with cash from crop sales often invested in purchase of cattle. Fishing, in addition to providing animal protein, generates income for household purchases while crops are growing. Cattle ranching is the main savings strategy for smalholders, providing funds for family emergencies and capital investments. Despite the fertility of soils and the higher productivity per hectare of fishing, cattle ranching has expanded steadily on the floodplain at the expense of farming and fishing. Over the last two decades, communities throughout the Amazon floodplain have developed and implemented collective agreements to regulate access to and use of local lake fisheries. Depending on the measures included, the impact of these agreements on household management strategies can range from negligible to highly significant, requiring major adjustments to compensate for reduced fishing income. Expansion of smallholder cattle ranching has taken advantage of unregulated access to community grasslands. Unregulated access to community grasslands has been a

  1. Mercury bioaccumulation in fish of commercial importance from different trophic categories in an Amazon floodplain lake

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    Sandra Beltran-Pedreros

    Full Text Available Thirty-two species of commercially important fish from three trophic levels and nine trophic categories were sampled at a floodplain lake of the Solimões River (Lago Grande de Manacapuru. The fish were analyzed to determine their Hg level and the bioaccumulation, bioconcentration, and biomagnification of this element. The observed increase in mean concentration of mercury (49.6 ng.g-1 for omnivores, 418.3 ng.g-1 for piscivores, and 527.8 ng.g-1 for carnivores/necrophages furnished evidence of biomagnification. Primary, secondary, and tertiary consumers presented biomagnification factors of 0.27, 0.33, and 0.47, respectively. Significant differences in the bioconcentration and concentration of total Hg occurred between the categories of the third trophic level and the other categories. Plagioscion squamosissimus (carnivorous/piscivorous and Calophysus macropterus (carnivorous/ necrophagous showed levels of total Hg above those permitted by Brazilian law (500 ng.g-1. Six other species also posed risks to human health because their Hg levels exceeded 300 ng.g-1. Fifteen species showed bioaccumulation, but only eight presented significant correlations between the concentration of Hg and the length and/or the weight of the fish.

  2. Patterns of interactions of a large fish-parasite network in a tropical floodplain.

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    Lima, Dilermando P; Giacomini, Henrique C; Takemoto, Ricardo M; Agostinho, Angelo A; Bini, Luis M

    2012-07-01

    1. Describing and explaining the structure of species interaction networks is of paramount importance for community ecology. Yet much has to be learned about the mechanisms responsible for major patterns, such as nestedness and modularity in different kinds of systems, of which large and diverse networks are a still underrepresented and scarcely studied fraction. 2. We assembled information on fishes and their parasites living in a large floodplain of key ecological importance for freshwater ecosystems in the Paraná River basin in South America. The resulting fish-parasite network containing 72 and 324 species of fishes and parasites, respectively, was analysed to investigate the patterns of nestedness and modularity as related to fish and parasite features. 3. Nestedness was found in the entire network and among endoparasites, multiple-host life cycle parasites and native hosts, but not in networks of ectoparasites, single-host life cycle parasites and non-native fishes. All networks were significantly modular. Taxonomy was the major host's attribute influencing both nestedness and modularity: more closely related host species tended to be associated with more nested parasite compositions and had greater chance of belonging to the same network module. Nevertheless, host abundance had a positive relationship with nestedness when only native host species pairs of the same network module were considered for analysis. 4. These results highlight the importance of evolutionary history of hosts in linking patterns of nestedness and formation of modules in the network. They also show that functional attributes of parasites (i.e. parasitism mode and life cycle) and origin of host populations (i.e. natives versus non-natives) are crucial to define the relative contribution of these two network properties and their dependence on other ecological factors (e.g. host abundance), with potential implications for community dynamics and stability.

  3. The role of vegetated areas on fish assemblage of the Paraná River floodplain: effects of different hydrological conditions

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    Juan José Neiff

    Full Text Available In this paper, we analyze the changes in composition and abundance of fish assemblages in seven vegetated floodplain wetlands with different connectivity across different hydrologic conditions: after a prolonged connection of the floodplain with the main channel, during receding water, and after a prolonged isolation. We also investigated the size and abundance of large-sized migratory species found in these wetlands and the food resources exploited by the dominant fish. Fishes were captured by diurnal seining (8.0 m x 1.50 m, 5 mm mesh along macrophyte banks. Despite the high total number of species registered (100, sample species richness varied between 7 and 31, depending on the sampling site and the sampling date. Cluster analysis indicated low similarity between sites during both the isolation and the prolonged connection. Species turnover decreased from high water (β = 40.33 to low water (β = 33.83, with the minimum value of beta diversity index obtained during the isolation of the floodplain wetlands (β = 26.83. Our results indicated that different dominant populations of fish occur in different hydrological conditions, even though high water and isolation phases occur in the same season of different years. The ordination (NMDS indicated the importance of hydrologic conditions in structuring fish assemblages in the studied floodplain. Small-sized characids, typically associated with macrophytes, dominated the fish assemblages, whereas the younger stages of large sized migratory species were found in low abundance. The maximum standard length of the fish captured was 28 cm and for large migratory fish, standard length varied between 1.6 and 25.0 cm. The dominant fish used several food resources, but littoral macrophytes-associated organisms had a high frequency of occurrence in the three hydrologic conditions. The high species richness of fish in the small, vegetated lakes was related to the high spatial heterogeneity during different

  4. Emigrants and Emigration States in Historical Perspective

    OpenAIRE

    Waldinger, Roger

    2014-01-01

    International migration from poorer to richer states gives emigrants resources that they can use to exercise leverage over home states, but also leaves them vulnerable to exploitation and discrimination in host states, conditions that activate interventions by emigration states seeking to influence and protect nationals abroad.  This paper traces the changing patterns of interaction between emigrants and emigration states over the past century and a half.  Many of the underlying incentives fo...

  5. Emigrants and Emigration in Historical Perspective

    OpenAIRE

    Waldinger, Roger

    2014-01-01

    International migration from poorer to richer states gives emigrants resources that they can use to exercise leverage over home states, but also leaves them vulnerable to exploitation and discrimination in host states, conditions that activate interventions by emigration states seeking to influence and protect nationals abroad.  This paper traces the changing patterns of interaction between emigrants and emigration states over the past century and a half.  Many of the underlying incentives fo...

  6. Ecology and life history of an Amazon floodplain cichlid: the discus fish Symphysodon (Perciformes: Cichlidae

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    William G. R. Crampton

    Full Text Available The discus fishes of the genus Symphysodon are popular ornamental cichlids that occur in floodplain lakes and flooded forests of the lowland Amazon Basin. These habitats are characterized by extreme seasonal fluctuations in the availability of food, shelter and dissolved oxygen, and also the densities of predators and parasites. Most aspects of discus biology are influenced by these fluctuating conditions. This paper reports an autoecological study of the western Amazonian discus S. haraldi (until recently classified as S. aequifasciatus. This species feeds predominantly on algal periphyton, fine organic detritus, plant matter, and small aquatic invertebrates. At high water it forages alone or in small groups in flooded forests. At low water it forms large aggregations in fallen tree crowns along lake margins. Breeding occurs at the beginning of the flood season, ensuring that the progeny are well grown before the next low water period. Symphysodon haraldi is an iteroparous partial spawner, reaches reproductive maturity within a year, and undertakes parental care of its eggs and larvae. The timing of spawning events, and/or the rate of brood survival, may be influenced by fluctuations in the flood level, resulting in a non-unimodal distribution of size classes for the subsequent 1+ cohort.

  7. Food resource partitioning in a fish community of the central Amazon floodplain

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    Bernard de Mérona

    2004-06-01

    Full Text Available Diets of most of fish species inhabiting a floodplain lake in central Amazonia were studied over a two years and half period. Based on the percentage of relative occurrence of 11 major food categories a classification of species in 11 feeding guilds is proposed. Many species were found to be specialized feeders. Fish, detritus and insects were the most important food resources supporting the fish community in both seasons, but the proportions of fruits, invertebrates and fish were reduced during the low water season. At the community level mean diet overlap between species was low, suggesting efficient resource partitioning within the community. However mean overlap between unspecialized feeders was high. Based on the 23 most abundant species belonging to the different feeding guilds, there was no difference in mean overlap between seasons. Whereas individual species exhibited diet changes between high water and low water seasons, there was no general pattern of seasonal change within feeding guilds.Os regimes alimentares da maioria das espécies de peixes de um lago de várzea da Amazônia central foram estudados durante dois anos e meio. Baseada nas percentagens de ocorrência relativa de 11 maiores categorias alimentares, uma classificação das espécies em 11 guildas alimentares é proposta. Muitas espécies foram consideradas especializadas em relação aos seus comportamentos alimentares. Peixes, detritos e insetos foram os recursos alimentares mais importantes ao longo do ano, mas as proporções relativas de frutos, invertebrados e peixes foram reduzidas durante a época de águas baixas. A nível de comunidade a sobreposição média entre espécies foi baixa, sugerindo uma partição eficiente dos recursos alimentares. Entretanto, para espécies não especializadas, os valores de sobreposição foram elevados. Baseado em 23 espécies abundantes, pertencentes a diferentes guildas alimentares, não foi observada diferença na sobreposi

  8. USE OF FOOD RESOURCES BY DETRITIVOROUS FISH IN FLOOD-PLAINS: A SYNTHESIS

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    ANA RUTE AMADEU SANTANA

    2014-06-01

    Full Text Available The present review investigated the sources of energy for detritivorous fish species in floodplains. Recent studies have shown that environmental changes that alter the terrestrial vegetation affect essentially the resource base in these areas, such as the detritus. In aquatic environments, especially floodplains, a major part of metabolic processes is supported by terrestrial detritus, which accounts for maintaining the detritivorous food chain. Thus, one way to evaluate environments changes is through isotopic studies of organic matter, which allows acquiring information about the quantity and quality of organic matter. This approach is required for understanding the interactions between the organic matter dynamics and its ecological effects, allowing the monitoring of these resources. However, researches on the energy flow in food chains should also employ an approach that quantifies the magnitude of these food subsidies, as also the access routes of aquatic consumers, in watersheds of different sizes and in diverse land uses.El uso de los recursos alimenticios por peces detritívoros en planicies de inundación: una síntesisResumenEsta revisión procuró investigar las fuentes de energía para las especies de peces detritívoras en la llanura de inundación. Los estudios han demostrado que las transformaciones ambientales que causan los cambios en la vegetación terrestre afectan principalmente la base de los recursos en estos planos inundables, tales como el detritus. En los ambientes acuáticos, especialmente las llanuras de inundación, la mayoría de los procesos metabólicos están sustentados por el detritus terrestre, y esta función es responsable de mantener las redes detritívoras. Una forma de evaluar estos cambios es a través de estudios isotópicos de la materia orgánica, los cuales permiten obtener información sobre su cantidad y su calidad mediante el análisis de la biomasa microbiana. Este enfoque es necesario para

  9. Patterns of habitat segregation among large fishes in a Venezuelan floodplain river

    Directory of Open Access Journals (Sweden)

    Craig A. Layman

    2005-03-01

    Full Text Available Distribution and abundance of large fishes (SL>100 mm in the río Cinaruco, a floodplain river in the Venezuelan llanos, were examined by gill net sampling in four habitat types: sand banks, backwater creeks, floodplain lagoons, and river channel. Sampling was standardized using nets (25 m x 2 m of three mesh sizes set for 24-h periods. Based on data from >10,000 hours of gill netting over three years, there were significant differences in assemblage composition among the four habitats. Pair-wise comparisons suggested differences in assemblage composition between all pairs of habitats except creeks and lagoons. Differences in assemblage composition likely arose from species-specific habitat affinities. For example, 21 taxa were collected from both creeks and lagoons, but not from sand banks or the main river channel; each of these 21 taxa were associated with particular features characteristic of creeks and lagoons (e.g. abundant detritus. Assemblage structure also could be influenced by predation or other biological interactions, but mechanistic experiments are needed to evaluate this hypothesis. Assemblage composition was highly variable within all habitat types, likely the result of spatial and temporal heterogeneity associated with seasonal hydrology. Long distance migrations by prochilodontids and other taxa contributed to higher CPUE during the rising-water period of May 2002. Data from this study will provide a baseline to assess changes in the abundance and distribution of large-bodied fishes in response to increasing impacts from illegal commercial fishing in this region.A distribuição e abundância de grandes peixes (SL>100 mm no rio Cinaruco, um rio com uma planície inundação nos llanos da Venezuela, foram examinadas através de amostragens por redes de espera em quatro habitats: bancos de areia, riachos, lagoas da planície de inundação e o canal do rio. As amostragens foram padronizadas usando-se redes de espera (25 m x 2 m

  10. The influence of flood pulse on fish communities of floodplain canals in the Middle Solimões River, Brazil

    Directory of Open Access Journals (Sweden)

    Raniere G. C. Sousa

    2008-01-01

    Full Text Available The functioning of large river systems with adjacent floodplains is strongly influenced by the flood pulse. This phenomenon is the main structuring force for the biota, including fish communities that use floodplain environments for spawning, feeding, nursery and refuge. In floodplains and in the entire basin, the volume of water controls internal flows. During rising water, the high discharge of the river acts as a natural barrier to the canals that connect floodplain lakes and the Solimões River, because the water flows from river to lake. During the dry period, there is a reduction of discharge and the water flow is reversed or stationary. These canals are environments with distinct ecological characteristics such as differentiated limnology and water level variation intensely affected by the hydrological cycle. Therefore, we surveyed the influence of the flood pulse on fish communities that inhabit two canals that connect floodplain lakes to the Middle Solimões River. Particularly, we evaluated the hypothesis that the Solimões River flow direction is not perfectly parallel to its banks, which creates peripheral flows that direct water from the rivers to the floodplain lake canals. Our analysis indicated that the seasonal pattern is stronger than the spatial. Beside this, we observed that the positions of the canals in relation to the main river flow somehow affect the fish assemblages. Finally, we conclude that the flood pulse is the main structuring force acting on these fish communities.A dinâmica dos sistemas de grandes rios com áreas inundadas adjacentes é fortemente influenciada pelo pulso de inundação, sendo este fenômeno o principal agente estruturador da biota, inclusive dos peixes, que utilizam este ambiente para a desova, alimentação, berçário e refúgio. Nesta região e em toda a bacia, a intensidade da vazão controla os fluxos internos. Na época da cheia, a forte vazão atua como uma barreira natural nos canais de

  11. Simultaneous abrupt shifts in hydrology and fish assemblage structure in a floodplain lake in the central Amazon.

    Science.gov (United States)

    Röpke, Cristhiana P; Amadio, Sidinéia; Zuanon, Jansen; Ferreira, Efrem J G; Deus, Cláudia Pereira de; Pires, Tiago H S; Winemiller, Kirk O

    2017-01-10

    Combined effects of climate change and deforestation have altered precipitation patterns in the Amazon. This has led to changes in the frequency of extreme events of flood and drought in recent decades and in the magnitude of the annual flood pulse, a phenomenon that influences virtually all aspects of river-floodplain ecosystem dynamics. Analysis of long-term data revealed abrupt and synchronous changes in hydrology and fish assemblage structure of a floodplain lake near the confluence of Amazon and Negro rivers. After an intense drought in 2005, the assemblage assumed a different and fairly persistent taxonomic composition and functional structure. Declines in abundance after 2005 were more pronounced for species of all sizes having equilibrium life history strategy, large species with periodic life history strategy, and for all trophic levels except primary consumers. Our results suggest that the extreme drought triggered changes in the fish assemblage and subsequent anomalous hydrological conditions have hampered assemblage recovery. These findings stress the need to account for climatic-driven hydrological changes in conservation efforts addressing aquatic biodiversity and fishery resources in the central Amazon.

  12. Simultaneous abrupt shifts in hydrology and fish assemblage structure in a floodplain lake in the central Amazon

    Science.gov (United States)

    Röpke, Cristhiana P.; Amadio, Sidinéia; Zuanon, Jansen; Ferreira, Efrem J. G.; Deus, Cláudia Pereira de; Pires, Tiago H. S.; Winemiller, Kirk O.

    2017-01-01

    Combined effects of climate change and deforestation have altered precipitation patterns in the Amazon. This has led to changes in the frequency of extreme events of flood and drought in recent decades and in the magnitude of the annual flood pulse, a phenomenon that influences virtually all aspects of river-floodplain ecosystem dynamics. Analysis of long-term data revealed abrupt and synchronous changes in hydrology and fish assemblage structure of a floodplain lake near the confluence of Amazon and Negro rivers. After an intense drought in 2005, the assemblage assumed a different and fairly persistent taxonomic composition and functional structure. Declines in abundance after 2005 were more pronounced for species of all sizes having equilibrium life history strategy, large species with periodic life history strategy, and for all trophic levels except primary consumers. Our results suggest that the extreme drought triggered changes in the fish assemblage and subsequent anomalous hydrological conditions have hampered assemblage recovery. These findings stress the need to account for climatic-driven hydrological changes in conservation efforts addressing aquatic biodiversity and fishery resources in the central Amazon. PMID:28071701

  13. Floodplain restoration with flood control: fish habitat value of levee borrow pits

    Science.gov (United States)

    Earthen flood control levees are often built using soil excavated from borrow pits lying parallel to and riverward of the finished levee. After construction, these pits can provide valuable floodplain habitats, and their value is well established along corridors of larger rivers. However, levee bo...

  14. Habitat loss as the main cause of the slow recovery of fish faunas of regulated large rivers in Europe: The transversal floodplain gradient

    NARCIS (Netherlands)

    Aarts, B.G.W.; Brink, F.W.B. van den; Nienhuis, P.H.

    2004-01-01

    In large European rivers the chemical water quality has improved markedly in recent decades, yet the recovery of the fish fauna is not proceeding accordingly. Important causes are the loss of habitats in the main river channels and their floodplains, and the diminished hydrological connectivity betw

  15. Emigration for Development?

    DEFF Research Database (Denmark)

    Careja, Romana

    2013-01-01

    is necessary if resources from emigration are to become seeds for development. By analysing the case of Romania, one of the largest labour sending countries in Eastern Europe, it argues that its laissez-faire approach is likely not enough to capitalize on emigrants' resources for development. International...

  16. Fish larvae assemblages in two floodplain lakes with different degrees of connection to the Paraná River, Brazil

    Directory of Open Access Journals (Sweden)

    Vanessa Salete Daga

    Full Text Available The objective of this study was to assess the abundance, attributes of assemblages, and spatial and temporal distributions of fish larvae and their relationships with some abiotic variables in two floodplain lakes with different degrees of connection to the Paraná River in Ilha Grande National Park, PR, Brazil. Four sampling sites were chosen, two in each floodplain lake. Night samples were taken with plankton nets during three spawning seasons (monthly, from October to March from 2001 to 2005. The highest diversity and abundance were recorded at Saraiva Lake, with 25 taxa being identified. In Xambrê Lake, only sedentary species were captured, and the most abundant species were Plagioscion squamosissimus and Hypophthalmus edentatus. The greatest abundance of larvae was found in the second spawning season. In the Saraiva Lake, the most abundant species were Moenkhausia aff. intermedia, Hyphessobrycon sp., and Bryconamericus stramineus, but larvae of known migratory species were also documented. In this lake, the greatest abundance of larvae was found in the third spawning. Larvae abundance was influenced by water temperature and conductivity. The high diversity and abundance recorded in Saraiva Lake may be a result of its connectivity with the Paraná River, and the low diversity and abundance observed at Xambrê Lake are likely due to its isolation from the river. This work shows the importance of these lagoons for fish development, for both sedentary and migratory species. Both lagoons may be considered to have extreme ecological importance and they are also extremely susceptible to impacts, so any careless disturbance may cause irreversible damage.

  17. High-quality seed dispersal by fruit-eating fishes in Amazonian floodplain habitats.

    Science.gov (United States)

    Anderson, Jill T; Saldaña Rojas, Joe; Flecker, Alexander S

    2009-08-01

    Seed dispersal is a critical stage in the life history of plants. It determines the initial pattern of juvenile distribution, and can influence community dynamics and the evolutionary trajectories of individual species. Vertebrate frugivores are the primary vector of seed dispersal in tropical forests; however, most studies of seed dispersal focus on birds, bats and monkeys. Nevertheless, South America harbors at least 200 species of frugivorous fishes, which move into temporarily flooded habitats during lengthy flood seasons and consume fruits that fall into the water; and yet, we know remarkably little about the quality of seed dispersal they effect. We investigated the seed dispersal activities of two species of large-bodied, commercially important fishes (Colossoma macropomum and Piaractus brachypomus, Characidae) over 3 years in Pacaya-Samiria National Reserve (Peru). We assessed the diet of these fishes during the flood season, conducted germination trials with seeds collected from digestive tracts, and quantified fruit availability. In the laboratory, we fed fruits to captive Colossoma, quantified the proportion of seeds defecated by adult and juvenile fish, and used these seeds in additional germination experiments. Our results indicate that Colossoma and Piaractus disperse large quantities of seeds from up to 35% of the trees and lianas that fruit during the flood season. Additionally, these seeds can germinate after floodwaters recede. Overexploitation has reduced the abundance of our focal fish species, as well as changed the age structure of populations. Moreover, older fish are more effective seed dispersers than smaller, juvenile fish. Overfishing, therefore, likely selects for the poorest seed dispersers, thus disrupting an ancient interaction between seeds and their dispersal agents.

  18. How fish benefit from floodplain restoration along the lower River Rhine

    NARCIS (Netherlands)

    Grift, R.E.

    2001-01-01

    The objectives of this study were to test the beneficial value of newly created secondary channels and reconnected oxbow lakes along the lower River Rhine for fish and to give advice on position, shape and character of future water bodies. These water bodies should contribute to the rebuilding of th

  19. A seasonal survey of the fish of the Kavango River floodplain along ...

    African Journals Online (AJOL)

    denise

    schemes for water resource utilization are being con- ... The results of the first seasonal survey of the fish of the Kavango River ... research reported here in that seasonal shifts in abun- ... of 10 500×106 m3 per year at the Botswana border ..... 70.0 53.0 32.0 50.0 50.0 ..... probably a reflection of gear selectivity based on its.

  20. Influence of host diet and phylogeny on parasite sharing by fish in a diverse tropical floodplain.

    Science.gov (United States)

    Lima, L B; Bellay, S; Giacomini, H C; Isaac, A; Lima-Junior, D P

    2016-03-01

    The patterns of parasite sharing among hosts have important implications for ecosystem structure and functioning, and are influenced by several ecological and evolutionary factors associated with both hosts and parasites. Here we evaluated the influence of fish diet and phylogenetic relatedness on the pattern of infection by parasites with contrasting life history strategies in a freshwater ecosystem of key ecological importance in South America. The studied network of interactions included 52 fish species, which consumed 58 food types and were infected with 303 parasite taxa. Our results show that both diet and evolutionary history of hosts significantly explained parasite sharing; phylogenetically close fish species and/or species sharing food types tend to share more parasites. However, the effect of diet was observed only for endoparasites in contrast to ectoparasites. These results are consistent with the different life history strategies and selective pressures imposed on these groups: endoparasites are in general acquired via ingestion by their intermediate hosts, whereas ectoparasites actively seek and attach to the gills, body surface or nostrils of its sole host, thus not depending directly on its feeding habits.

  1. Floodplain Study

    Data.gov (United States)

    Montgomery County of Maryland — The purpose of a floodplain study is to establish the 100-year floodplain limits within or near a development in order to preserve the natural resources within the...

  2. Emigration from the Sahel.

    Science.gov (United States)

    Findley, S; Traore, S; Ouedraogo, D; Diarra, S

    1995-01-01

    This report on international migration from the Sahel (the band of countries which lies just south of the Sahara and extends to the Atlantic) opens with a historical overview of the region which includes a description of the response of its people to periodic droughts (including gradual migration to the south), a look at commercial expansion which led to the growth of urban centers, and the destabilizing effects of Atlantic trade and subsequent colonization. The report continues by examining 1) the ethnic and political factors which influenced migration, 2) emigration trends from the region, 3) economic factors, and 4) the effect of the agricultural system on male migration. It is noted that the agricultural sector is unlikely to meet the region's needs for food or cash and that the mining sector can generate cash but not food or sufficient jobs. Industrial growth has been limited, and only the public sector has shown consistent growth. After examining the macro-economic context formed by foreign aid and foreign debt, the current international migration situation is described. The recent phenomenon of female migrants is analyzed as a response to economic crisis. A case study is then presented of emigration from Mali with an emphasis on emigration from the Senegal River Valley which has been plagued by drought. Finally, it is projected that migration trends will continue as long as the propelling economic, environmental, and political crises continue. A need exists for programs to help migrants channel their funds for their return. In addition, collaborative development projects should incorporate the emigration process by 1) strengthening the financial contribution of emigrants, 2) incorporating return migrants, and 3) strengthening the underlying economic insecurity which exacerbates migration.

  3. Effects of extended absence of flooding on the fish assemblages of three floodplain lagoons in the middle São Francisco River, Brazil

    Directory of Open Access Journals (Sweden)

    Paulo dos Santos Pompeu

    Full Text Available In the Neotropics, a large proportion of fish communities of large rivers use floodplain as habitats for feeding, reproduction, and refuge. An evaluation was made of the effects of extended dry periods on the species richness, abundance and local extinction of fish species in three marginal lagoons in the middle São Francisco River, southeastern Brazil. The studied lagoons fail to receive river floods during the study period (1994-1996. A gradual reduction in richness and abundance was observed in all lagoons. Migratory fish species had the highest probability to become extinct in the two lagoons that remained with large water volume. Species tolerant to low levels of dissolved oxygen had the lowest probability of local extinction in the lagoon showing an abrupt reduction in water volume. Similar changes to those observed in the current study are likely to occur in the floodplains if dams would be constructed in this segment of the river. Adequate water releases from Três Marias reservoir, located upstream, should be considered as a management tool for producing episodic flooding on the marginal lagoons of the region.

  4. Emigration dynamics: the Indian context.

    Science.gov (United States)

    Premi, M K; Mathur, M D

    1995-01-01

    This report on emigration dynamics in India opens by providing background on short- and long-distance migration to and from India in response to such events as the formation of Pakistan as well as to the policies of the British Empire and Commonwealth. Section 2 discusses India's demographic and sociocultural setting in terms of population growth, urbanization, patterns of internal migration, growth of the labor force, economic growth, poverty alleviation, health, and education. The third section describes the lack of data on international migration. Some data are available on emigrants, but the only information on return migration is that gleaned from surveys in Kerala. Section 4 considers emigration to industrialized countries and notes that it is almost exclusively permanent and largely composed of individuals with professional, technical, or managerial skills. The resulting brain drain is described as is the incidence of illegal migration. India does not create conditions from which citizens must seek asylum, rather the country has absorbed flows of refugees from Pakistan, Tibet, Bangladesh, Afghanistan, and Sri Lanka. Available data on the characteristics of emigrants and return migrants are reviewed in the next two sections, and section 7 looks at the data on financial flows gathered from macro-level estimates of remittances. Section 8 is devoted to the community, family, and individual factors which influence emigration including the networks that facilitate migration and means of meeting migration costs. The ninth section summarizes the political setting with an emphasis on the adverse reaction of Nepal to population movement from India. The final section of the report projects future population movements. It is noted that if there were no restrictions on migration, millions of Indians would emigrate to the Americas, Africa, and Australia. Whereas poverty, unemployment, and population growth will likely erode living conditions in India, the government has

  5. Loss of rare fish species from tropical floodplain food webs affects community structure and ecosystem multifunctionality in a mesocosm experiment.

    Directory of Open Access Journals (Sweden)

    Richard M Pendleton

    Full Text Available Experiments with realistic scenarios of species loss from multitrophic ecosystems may improve insight into how biodiversity affects ecosystem functioning. Using 1000 L mesocoms, we examined effects of nonrandom species loss on community structure and ecosystem functioning of experimental food webs based on multitrophic tropical floodplain lagoon ecosystems. Realistic biodiversity scenarios were developed based on long-term field surveys, and experimental assemblages replicated sequential loss of rare species which occurred across all trophic levels of these complex food webs. Response variables represented multiple components of ecosystem functioning, including nutrient cycling, primary and secondary production, organic matter accumulation and whole ecosystem metabolism. Species richness significantly affected ecosystem function, even after statistically controlling for potentially confounding factors such as total biomass and direct trophic interactions. Overall, loss of rare species was generally associated with lower nutrient concentrations, phytoplankton and zooplankton densities, and whole ecosystem metabolism when compared with more diverse assemblages. This pattern was also observed for overall ecosystem multifunctionality, a combined metric representing the ability of an ecosystem to simultaneously maintain multiple functions. One key exception was attributed to time-dependent effects of intraguild predation, which initially increased values for most ecosystem response variables, but resulted in decreases over time likely due to reduced nutrient remineralization by surviving predators. At the same time, loss of species did not result in strong trophic cascades, possibly a result of compensation and complexity of these multitrophic ecosystems along with a dominance of bottom-up effects. Our results indicate that although rare species may comprise minor components of communities, their loss can have profound ecosystem consequences across

  6. Loss of rare fish species from tropical floodplain food webs affects community structure and ecosystem multifunctionality in a mesocosm experiment.

    Science.gov (United States)

    Pendleton, Richard M; Hoeinghaus, David J; Gomes, Luiz C; Agostinho, Angelo A

    2014-01-01

    Experiments with realistic scenarios of species loss from multitrophic ecosystems may improve insight into how biodiversity affects ecosystem functioning. Using 1000 L mesocoms, we examined effects of nonrandom species loss on community structure and ecosystem functioning of experimental food webs based on multitrophic tropical floodplain lagoon ecosystems. Realistic biodiversity scenarios were developed based on long-term field surveys, and experimental assemblages replicated sequential loss of rare species which occurred across all trophic levels of these complex food webs. Response variables represented multiple components of ecosystem functioning, including nutrient cycling, primary and secondary production, organic matter accumulation and whole ecosystem metabolism. Species richness significantly affected ecosystem function, even after statistically controlling for potentially confounding factors such as total biomass and direct trophic interactions. Overall, loss of rare species was generally associated with lower nutrient concentrations, phytoplankton and zooplankton densities, and whole ecosystem metabolism when compared with more diverse assemblages. This pattern was also observed for overall ecosystem multifunctionality, a combined metric representing the ability of an ecosystem to simultaneously maintain multiple functions. One key exception was attributed to time-dependent effects of intraguild predation, which initially increased values for most ecosystem response variables, but resulted in decreases over time likely due to reduced nutrient remineralization by surviving predators. At the same time, loss of species did not result in strong trophic cascades, possibly a result of compensation and complexity of these multitrophic ecosystems along with a dominance of bottom-up effects. Our results indicate that although rare species may comprise minor components of communities, their loss can have profound ecosystem consequences across multiple trophic

  7. Fish, Reptile and Amphibian Biodiversity of Wetlands, Ponds and Scour Holes on the Floodplains of the Missouri River, on the Big Muddy National Fish and Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — In the summer of 2009, a survey was conducted of of 15 previously unsampled water bodies at four different sites within the Big Muddy NFWR. A brief survey of various...

  8. Floodplain ecosystem processes

    Science.gov (United States)

    Melack, John M.; Novo, Evlyn M. L. M.; Forsberg, Bruce R.; Piedade, Maria T. F.; Maurice, Laurence

    Floodplains represent a major component of the central Amazon Basin and influence the hydrology, ecology, and biogeochemistry. Hess et al. (2003) used a classification of synthetic aperture radar data with 100 m resolution for a 1.77 million km2 quadrat in central Amazonia and identified 17% as wetland most of which was inundated a portion of each year. Total net production attributed to flooded forests (excluding wood increments), aquatic macrophytes, phytoplankton, and periphyton for the 1.77 million km2 quadrat was estimated to be about 300 Tg C a-1. Flooded forests accounted for 62% of the total, aquatic macrophytes accounted for 34%, and the remaining 4% was associated with periphyton and phytoplankton. Approximately 10% of the total is the amount of organic carbon exported annually by the Amazon River according to Richey et al. (1990), methane emission is about 2.5% according to Melack et al. (2004), and a similar percent is estimated to be buried in sediments. The remaining portion is close to being sufficient to fuel the respiration that results in the degassing of 210 ± 60 Tg C a-1 as carbon dioxide from the rivers and floodplains according to Richey et al. (2002). Variations in the distribution and inundation of floodplain habitats play a key role in the ecology and production of many commercially important freshwater fish. A significant relationship exists between maximum inundated area lagged by 5 years and annual yield of omnivores.

  9. Bulgarian Turkish emigration and return.

    Science.gov (United States)

    Vasileva, D

    1992-01-01

    The main factors which determined the 1989 migration of Turks in Bulgaria back to Turkey are discussed. Background history is provided. After World War I, Turks in bulgaria comprised 10% of the total population. Bulgarian policy had been, up to the 1980s to send Rumelian Turks back, but the policy after 1980 was one of a national revival process to integrate Turks into the developed socialist society. Muslim traditions, customs, and Turkish language were interfered with. International disfavor resulted. In May 1989, the Communist Party declared, in an effort to show democratic ideals, open borders. Thus began the new emigration wave. 369,839 people fled to the Turkish border. 43% of the 9.47 ethnic Turks in bulgaria went to Turkey within 4 months. The numbers decreased in November, and soon after the communist regime ended. New laws were adopted allowing Turks to assume their original Turkish names. The huge migration was clearly political, and as such, the emigrant Turks should be determined as refugees and asylum seekers. The provocation of ethnic Turks was used by the communist regime to solve potential social conflicts. Not only did Turks flee to escape from violence or for religious, cultural, and moral reasons but also due to free market initiatives begun in Turkey in the early 1980s which improved Turkish quality of life. Food and consumer goods were cheaper and economic advantages were perceived. Emigrants were primarily peasants with lower levels of education, professional qualifications, and labor skills. 154,937 (42%) returned to bulgaria and 58% stayed in Turkey to comprise 25% of the former Turkish population. During this period, tensions between countries was high.l Bulgarians actively encouraged emigration and Turkey welcomed it. The emigrants to Turkey were seen as foreigners (muhacir or gocmen) but were received with good will and were readily accepted into menial positions. Emigrants were confronted with political, linguistic, and cultural

  10. How does floodplain width affect floodplain river ecology? A preliminary exploration using simulations

    Science.gov (United States)

    Power, Mary E.; Parker, Gary; Dietrich, William E.; Sun, Adrian

    1995-09-01

    Hydraulic food chain models allow us to explore the linkages of river discharge regimes and river-floodplain morphology to the structure and dynamics of modeled food webs. Physical conditions (e.g. depth, width, velocity) that vary with river discharge affect the performance (birth, growth, feeding, movement, or death rates) of organisms or trophic groups. Their performances in turn affect their impacts on food webs and ecosystems in channel and floodplain habitats. Here we explore the impact of floodplain width (modeled as 1 ×, 10× and 40× the channel width) on a food web with two energy sources (detritus and vegetation), invertebrates that consume these, a size structured fish population which consumes invertebrates and in which larger fish cannibalize small fish, and birds which feed on large fish. Hydraulic linkages to trophic dynamics are assumed to be mediated in three ways: birds feed efficiently only in shallow water; plant carrying capacity varies non-linearly with water velocity, and mobile and drifting organisms are diluted and concentrated with spillover of river discharge to the floodplain, and its reconfinement to the channel. Aspects of this model are based on field observations of Junk and Bailey from the Amazon, of Sparks from the Mississippi, and on our observations of the Fly River in Papua New Guinea. The model produced several counter-intuitive results. Biomass of invertebrates and fish increased with floodplain width, but much more rapidly from 1 × to 10 × floodplains than from 10 × to 40 × floodplains. For birds, maximum biomass occurred on the 10× floodplain. Initially high bird biomass on the 40 × floodplain declined to extinction over time, because although favorable fishing conditions (shallow water) were most prolonged on the widest floodplain, this advantage was more than offset by the greater dilution of prey after spillover. Bird predation on large fish sometimes increased their biomass, by reducing cannibalism and thereby

  11. Determinants of Soviet emigration policies.

    Science.gov (United States)

    Friedgut, T H

    1991-06-01

    "The object of this paper is the presentation and analysis of the political values that are expressed in Soviet emigration policy. Underlying this is an attempt to discern points of change in these values, in particular through the post-World War II history of the USSR. Our concluding point will be the new law on entry and exit from the USSR, pending before the Supreme Soviet [in 1991] with its passage promised in the nearest future." The study covers the period from the 1920s to the present.

  12. Attitudes of Israeli Students Toward Emigration

    Science.gov (United States)

    Shapira, Rina; Etzioni, Eva

    1970-01-01

    Students in Israel, whether of Jewish or Oriental origin, tend to form their attitudes on the subject of emigration according to the amount of emphasis they place on career advancement and patriotism. Because of the vital need of Israel for all of its best brains, emigrants are often viewed as quasi-traitors. (CK)

  13. Emigration from Russia: New Trends and Forms

    Directory of Open Access Journals (Sweden)

    Vladimir Alekseyevich Iontsev

    2016-06-01

    Full Text Available The subject-matter of this article is migration from Russia. The study deals with current aspects and new forms of emigration. The goal of this paper is to identify new patterns determining the emigration from Russia. The article views the emigration in a broad sense, including, in addition to classic emigration (i.e. leaving the home country for permanent residence in another country, various categories of return migration (labor migration, shuttle traders, seasonal migration, episodic migration, economic tourism, business migration, education abroad, etc.. With the emergence of these new forms and categories, there is a need to clarify the migration concepts. This analysis is built on a broad historical perspective on emigration, which has been a typical phenomenon for Russia over the last three centuries. The article is based on such economic theories, as the human capital theory, new economic theory of migration, Todaro’s economic theory of migration and other. In this article, a variety of methods are used, including historical analogy, statistical and mathematical approaches, sociological and econometric models. The article analyzes the patterns of modern emigration from Russia. It also considers certain aspects in the legal regulation of migration processes, with a focus on emigrants, including potential emigrants. In conclusion, the article notes the need for the state control of emigration processes. This means not so much the improvement of statistical records for this group of migrants, but rather specific government measures aimed at providing the state support to these categories of migrants in order to prevent the nonreturn migration. In other words, it is not aimed at banning the emigration (a measure, the adverse effects of which were noted as long ago as by Mikhail Lomonosov, but at providing the state support to these categories of migrants in order to prevent the non-return migration. The findings of this research can be

  14. Breeding bird study in the Mississippi River Floodplain

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — A breeding bird study was initiated in 1992 to census birds on the Gardner Division of Mark Twain NWR. The division is located in the Mississippi River floodplain...

  15. The Export Promoting Effect of Emigration

    DEFF Research Database (Denmark)

    Hiller, Sanne

    . This paper provides a first attempt to identify the export-promoting effect of emigration on the firm level. Using detailed Danish firm-level data, we can parsimoniously control for export determinants other than emigration, unobserved heterogeneity at the firm level, as well as for self-selection of firms...... into exporting. Additionally accounting for taste similarity between Denmark and its trade partners, our findings suggest a positive effect of emigration on Danish manufacturing trade within Europe, thereby corroborating preceding studies on aggregate data. Nevertheless, as a novel insight, our analysis reveals...

  16. Emigration trajectories of former Portuguese emigrants: the construction of family integrity

    Directory of Open Access Journals (Sweden)

    Filipa Daniela Marques

    2012-06-01

    Full Text Available Constructing family integrity is a normative developmental challenge for older people, which is influenced by the family and social systems. This exploratory study examines the emigration trajectories of former Portuguese emigrants, now in old age, who returned to their home country (Portugal. And aims to contribute to a better understand of the influence of emigration experiences in the construction of family integrity versus disconnection and alienation.

  17. Emigration dynamics in southern Africa.

    Science.gov (United States)

    Milazi, D

    1995-01-01

    This review of the dynamics of international migration in Southern Africa focuses on four aspects of labor migration: 1) while migrant workers suffer from discrimination and lack of protection, there are few alternatives for them; 2) the regulations imposed by the Chamber of Mines in South Africa favor the mining industry at the expense of the workers; 3) worker supplier states have few options for negotiating a commercialized migration policy to achieve economic benefits; and 4) foreign mine workers must unionize in order to escape perpetual subordination. The review opens with a consideration of how migrant mine workers from Botswana, Lesotho, and Swaziland have provided a source of cheap labor which has enhanced the economic prosperity of South Africa. The role of the Chamber of Mines in regulating the supply of labor and employment policy for its members is described. Attention is then turned to Lesotho where land pressure has exacerbated poverty levels. Large-scale migration has led the citizens of Lesotho to consider it a place to live or retire to, not a place to work. Labor migration from Lesotho is organized, is supported by the government, is recurrent, and remains a viable alternative despite faltering demand. The discussion of Lesotho includes a consideration of its political, economic, and demographic situation as well as of ecological factors. Briefer analyses are then provided for Botswana, Swaziland, and Mozambique. The receiving country, South Africa, is shown to be suffering a decline in economic growth which is marked by widespread unemployment. More than 250,000 Whites are prospective emigrants from South Africa. After considering the issues surrounding refugees, regional concerns created by changing economic and political scenarios, and labor strategies which could be adopted by supplier states, the report reiterates a series of recommendations which arose from two major conferences on the problem of unemployment. It is concluded that the

  18. Emerging Issues in Migration, Emigration, and Immigration.

    Science.gov (United States)

    Journal of Intergroup Relations, 1984

    1984-01-01

    Reports on findings presented at three workshops on immigration and emigration at a 1982 conference on human rights. Addresses topics ranging from rights of refugees and migrants to philosophies of cultural pluralism. (KH)

  19. Emerging Issues in Migration, Emigration, and Immigration.

    Science.gov (United States)

    Journal of Intergroup Relations, 1984

    1984-01-01

    Reports on findings presented at three workshops on immigration and emigration at a 1982 conference on human rights. Addresses topics ranging from rights of refugees and migrants to philosophies of cultural pluralism. (KH)

  20. THE COSSACK EMIGRE IN 1945 – 1960

    Directory of Open Access Journals (Sweden)

    Oleg V. RATUSHNYAK

    2016-01-01

    Full Text Available This article deals with the problem of formation and development of the Cossack émigré after World War II. The Cossack émigré is being examined as integral part of the Russian emigre. Most reasons which resulted that some part of the Cossacks to stay abroad were of an objective nature. However it is rarely possible to pick out the only reason of reluctance of return. The structure of the Cossack emigre had changed. It was increased with former Soviet citizens and at the same time some part of former white émigré was delivered to the USSR. Cossacks who were situated both in camps for displaced persons and generally in Europe and China tried to leave for countries placed outside the Eurasian continent. In this respect the most attractive were the USA, Canada, Australia and states of the South America. In some degree decision of migration was caused by the immigration policy of some states. After World War II the most part of Russian and Cossack associations, organizations and communities had mainly socio-cultural nature. There were socio-political and psychological contradictions between the members of the first and the second emigration waves. Sometimes they encouraged mistrust, opposition and in many cases open enmity and struggle inside the emigre. At once the Cossack emigre was affected be factors which by contrast contributed to rapprochement of the members of two emigration waves. Being an integral part of the Russian emigre the Cossacks after World War II went down the same road as the other Russian emigrants but having some special aspects caused by different factors of both objective and subjective origins.

  1. Estimation of temporary emigration in male toads

    Science.gov (United States)

    Muths, E.; Scherer, R. D.; Corn, P.S.; Lambert, B.A.

    2006-01-01

    Male boreal toads (Bufo boreas) are thought to return to the breeding site every year but, if absent in a particular year, will be more likely to return the following year. Using Pollock's robust design we estimated temporary emigration (the probability a male toad is absent from a breeding site in a given year) at three locations in Colorado, USA: two in Rocky Mountain National Park and one in Chaffee County. We present data that suggest that not all male toads return to the breeding site every year. Our analyses indicate that temporary emigration varies by site and time (for example, from 1992 to 1998, the probability of temporary emigration ranged from 10% to 29% and from 3% to 95% at Lost Lake and Kettle Tarn, respectively). Although the results provide weak evidence that males are more likely to return after a year's hiatus, a general pattern of state-dependent temporary emigration was not supported. We also hypothesized relationships between temporary emigration and a number of weather variables. While some competitive models included weather covariates, imprecise and variable estimates of the effects of these covariates precluded fully defining their impact on temporary emigration. ?? 2006 by the Ecological Society of America.

  2. Emigration dynamics from and within South Asia.

    Science.gov (United States)

    Shah, N M

    1995-01-01

    This review of current knowledge about emigration dynamics from and within South Asia (Bangladesh, India, Pakistan, and Sri Lanka) opens with a brief history of the three phases of emigration from the area since the 1830s (plantation labor; postindependence to the UK, US, Canada, and Australia; and labor migration to the oil-exporting countries). The influence of the creation of Pakistan and Bangladesh is also covered as are British colonial and commonwealth policies. It is noted that migration data are incomplete and that India exhibits an ambivalence about collecting such information. The discussion then turns to emigration since 1970 and considers permanent migration from South Asia to the traditional receivers; South Asian asylum seekers in Europe; South Asian refugees, illegal migrants, migrant workers (flows and destinations), the stock of contract migrant workers (and their characteristics); returnee migrant workers; and skill levels. Analysis is provided of macro level determinants of emigrations such as gross national product (level and growth), the general demographic and social situation, labor force growth and structure, poverty and inequality, and internal and international migration. Environmental factors causing displacement in Southern Asia include floods, cyclones, river bank erosion, drought, and desertification. Global warming could displace millions of people in the region, and development projects have contributed to displacement. The remainder of the report covers political and ethnic factors, micro-factors influencing migration decision-making, the policies of sending and receiving countries, the consequences of emigration, and the potential for migration in the future.

  3. Insect food aiming at Mars emigration

    Science.gov (United States)

    Katayama, Naomi; Yamashita, Masamichi; Hashimoto, Hirofumi; Nagasaka, Sanako; Kuwayama, Akemi; Sofue, Megumi

    2012-07-01

    We study insect food aiming at Mars emigration.In space agriculture, insect is the important creature which we cannot miss.It is necessary for the pollination of the plant, and it is rich to protein and lipid as food.I reported that silkworm is an insect necessary for astroponics in particular last time.We make clothes using silk thread, and the pupa becomes the food.In addition, the clothes can make food as protein when we need not to use it. The bee is a very important insect in the space agriculture,too.We examined nutrition of silkworm, bee, grasshopper, snail and the white ant which are necessary for Mars emigration.We will introduce of good balance space foods.We will report many meal menu for Mars emigration.

  4. Pakistani labour emigration: new destinations in Europe

    Directory of Open Access Journals (Sweden)

    Nasra M. Shah

    2005-01-01

    Full Text Available In the first part of this paper a historical overview is made of Pakistani labour emigration to the countries of the Persian Gulf, and to Anglo-Saxon countries in general and to the United Kingdom in particular. In the second part of the paper the new European labourmarkets which Pakistani emigrants have been increasingly discovering is analyzed. In this sense, Spain has become one of the new destinations. The author goes on to point out the specific nature of this new situation and at the same time details some of the future implications for Spain.

  5. Young Women's Emigration from Borena Woreda (District) to the ...

    African Journals Online (AJOL)

    to the Arab World and its Impact on Socio-Economic ... of young women emigration to the Arab World; the magnitude of young emigrant women at a family level; ways ..... women had modern education ranging ..... Conditions of Globalization.

  6. Emigration, wage differentials and brain drain: The case of Suriname

    NARCIS (Netherlands)

    T.W. Dulam (Tina); Ph.H.B.F. Franses (Philip Hans)

    2011-01-01

    textabstractIn this paper we examine two hypotheses concerning emigration. The first hypothesis is that emigration is positively correlated with wage differentials. The second hypothesis concerns a positive correlation between emigration and higher education in the sending country (the so-called bra

  7. The Impacts of Emigration on the Mexican Economy.

    Science.gov (United States)

    Newman, Allen R.

    1982-01-01

    The assumption that Mexican emigration to the United States provides benefits to Mexico in the form of jobs for unemployed Mexicans and wage remittances has kept Mexican officials from discouraging illegal emigration. In fact, emigration drains the Mexican economy and should be a cause for Mexican government concern. (Author/MJL)

  8. Motivations and Earnings of Emigrants from a Rich Welfare State

    DEFF Research Database (Denmark)

    Poutvaara, Panu; Munk, Martin D.

    2017-01-01

    little is known about individual motivations to emigrate. To bridge this gap, we organized the first-ever survey of emigrants from a welfare state. We find that migration decisions are rarely driven by taxes. For men, the main reason to emigrate is own work, for women partner and family....

  9. The Impact of Emigration on Jamaican Employment.

    Science.gov (United States)

    Dixon, Heriberto

    1980-01-01

    Massive emigration from Jamaica of professionals, technicians, managers and administrators, and skilled workers has resulted in a critical shortage of a well-educated work force. If present political and economic trends continue, this problem is likely to remain for some time to come. (ST)

  10. THE ECONOMIC EFFECTS OF EMIGRATION OF YOUNG

    Directory of Open Access Journals (Sweden)

    Dorel AILENEI

    2015-02-01

    Full Text Available Migration is one of the oldest phenomena that accompanied the development of human society, sometimes causing clashes between peoples, cultures and civilizations. Recent events or from a not too distant past of Europe show that tensions created by migratory movements often have an impact on political and economic relations between countries, cultures and religions. The Romanian reality shows that after 1989 the resident population experienced a decline. According to the National Institute of Statistics, in the period 1989-2012, Romania's population decreased by about 3.1 million, this reduction being due to both migration phenomenon and negative natural increase of population. Some statistic records also show that the extremes are usually among those who decide to emigrate. On the one hand those who are choosing this path are individuals with low income and a low or medium level of education; on the other hand, we can find the phenomenon of brain drain. It is alarming that among those who choose to emigrate are registered young people able to work, this generating the problem of funding on medium and long term the social services. Starting from such aspects, this paper aims to highlight key issues regarding the intention of emigration of highly educated young people. Using quantitative and qualitative methods the authors of this paper aim to identify some possible causes that may determine the highly educated youth to emigrate, evaluate some possible effects due to this phenomenon and to find proposals to limit the negative effects of demographic decline.

  11. Gulf revisited: Economic consequences of emigration from Kerala, emigration and unemployment

    OpenAIRE

    K.C. Zachariah; S. Irudaya Rajan

    2004-01-01

    This Working Paper is about Videsha Malayalikal, or Non-Resident Keralites (NRKs). It provides the size, trend, geographical distribution, socio-economic composition of migrants, and remittances sent back by the migrants. The situation with respect to migration in 2004 is compared with that in 1999. The main focus of the study is, however, the analysis of the social and economic consequences of emigration on Kerala society. What have been the macroeconomic consequences of emigration? What are...

  12. FLOODPLAIN, BLEDSOE COUNTY

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  13. FLOODPLAIN, OTOE COUNTY, NE

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  14. FLOODPLAIN, CLARK COUNTY, NEVADA

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    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  15. FLOODPLAIN, BRADFORD COUNTY, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  16. FLOODPLAIN, Kent COUNTY, USA

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    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  17. FLOODPLAIN, CALDWELL COUNTY, TEXAS

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    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classificatinos used are the...

  18. FLOODPLAIN MAPPING, Bandera, TEXAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  19. FLOODPLAIN, NOBLE COUNTY, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  20. FLOODPLAIN, MORGAN COUNTY, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  1. FLOODPLAIN, JUNIATA COUNTY, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  2. FLOODPLAIN, GUERNSEY COUNTY, OHIO

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the 1-percent-annual-chance...

  3. FLOODPLAIN, ALBANY COUNTY, WY

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  4. FLOODPLAIN, DEWITT COUNTY, TEXAS

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    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classificatinos used are the...

  5. FLOODPLAIN, GONZALES COUNTY, TEXAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classificatinos used are the...

  6. FLOODPLAIN, CENTRE COUNTY, PA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  7. FLOODPLAIN, SANDUSKY COUNTY, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  8. FLOODPLAIN, HILL COUNTY, TEXAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for teh study area. The primary risk classificatinos used are the...

  9. FLOODPLAIN, AUSTIN COUNTY, TEXAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classificatinos used are the...

  10. FLOODPLAIN, TITUS COUNTY, TEXAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for teh study area. The primary risk classificatinos used are the...

  11. FLOODPLAIN, BOSQUE COUNTY, TEXAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for teh study area. The primary risk classificatinos used are the...

  12. FLOODPLAIN, MONTAGUE COUNTY, TEXAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for teh study area. The primary risk classificatinos used are the...

  13. FLOODPLAIN, WOOD COUNTY, TEXAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for teh study area. The primary risk classificatinos used are the...

  14. FLOODPLAIN, LIBERTY COUNTY, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  15. FLOODPLAIN, CALHOUN COUNTY, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  16. FLOODPLAIN, WASHINGTON COUNTY, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  17. FLOODPLAIN, UINTAH COUNTY, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  18. FLOODPLAIN, Northumberland COUNTY, VA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  19. FLOODPLAIN, GALLIA COUNTY, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  20. FLOODPLAIN, MADISON COUNTY, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  1. FLOODPLAIN, SENECA COUNTY, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  2. FLOODPLAIN, GREYBULL, WYOMING

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  3. FLOODPLAIN, HAMPDEN COUNTY, MASSACHUSETTS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  4. FLOODPLAIN, LENAWEE COUNTY, MICHIGAN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the 1-percent-annual-chance...

  5. FLOODPLAIN, FAIRFAX COUNTY, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  6. FLOODPLAIN, TAMA COUNTY, IOWA

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    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  7. FLOODPLAIN, SCOTT COUNTY, IOWA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  8. FLOODPLAIN, Charles COUNTY, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  9. Floodplain Manager Regions

    Data.gov (United States)

    Vermont Center for Geographic Information — The Floodplain Management section of the VT Rivers Program works with the Federal Emergency Management Agency (FEMA) to oversee the National Flood Insurance Program...

  10. FLOODPLAIN, Clare COUNTY, MICHIGAN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the 1-percent-annual-chance...

  11. FLOODPLAIN, SHERIDAN COUNTY, WY

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  12. FLOODPLAIN, Surry COUNTY, VA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  13. FLOODPLAIN, ERATH COUNTY, TEXAS

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    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classificatinos used are the...

  14. FLOODPLAIN, JEFFERSON COUNTY, NY

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    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  15. FLOODPLAIN, PERRY COUNTY, USA

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    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  16. FLOODPLAIN, PICKAWAY COUNTY, USA

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    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  17. FLOODPLAIN, WAPELLO COUNTY, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  18. FLOODPLAIN, HURON COUNTY, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  19. FLOODPLAIN, RICHLAND COUNTY, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  20. FLOODPLAIN, Iosco COUNTY, MICHIGAN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the 1-percent-annual-chance...

  1. FLOODPLAIN, CALHOUN COUNTY, MICHIGAN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the 1-percent-annual-chance...

  2. FLOODPLAIN, Alpena COUNTY, MICHIGAN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the 1-percent-annual-chance...

  3. FLOODPLAIN, FLOOD COUNTY, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  4. FLOODPLAIN, MINERAL COUNTY, NEVADA

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    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  5. FLOODPLAIN, Jackson COUNTY, OHIO

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the 1-percent-annual-chance...

  6. FLOODPLAIN, WESTMORELAND, VIRGINIA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  7. FLOODPLAIN MAPPING, Atascosa, TEXAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  8. FLOODPLAIN, CLAYTON COUNTY, USA

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    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  9. FLOODPLAIN, MUSCATINE COUNTY, USA

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    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  10. FLOODPLAIN, GLENN COUNTY, USA

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    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  11. FLOODPLAIN, TEHAMA COUNTY, USA

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    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  12. FLOODPLAIN, COVINGTON COUNTY, ALABAMA

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    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  13. FLOODPLAIN, JACKSON COUNTY, MICHIGAN

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    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the 1-percent-annual-chance...

  14. FLOODPLAIN, PIKE COUNTY, USA

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    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  15. FLOODPLAIN, HAMILTON COUNTY, USA

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    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  16. FLOODPLAIN, JONES COUNTY, USA

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    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  17. FLOODPLAIN, DUBUQUE COUNTY, IA

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    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  18. FLOODPLAIN, Ottawa COUNTY, MICHIGAN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the 1-percent-annual-chance...

  19. FLOODPLAIN, Charles County, MD

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  20. FLOODPLAIN, Macomb COUNTY, MICHIGAN

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    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the 1-percent-annual-chance...

  1. FLOODPLAIN, BURLESON COUNTY, TEXAS

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    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classificatinos used are the...

  2. FLOODPLAIN, LEVY COUNTY, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  3. FLOODPLAIN, WASHINGTON COUNTY, TEXAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classificatinos used are the...

  4. FLOODPLAIN, JEFFERSON COUNTY, COLORADO

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  5. FLOODPLAIN, WISE COUNTY, TEXAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classificatinos used are the...

  6. FLOODPLAIN, WAYNE COUNTY, TENNESSEE

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  7. FLOODPLAIN, Trousdale COUNTY, TENNESSEE

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  8. FLOODPLAIN, ATHENS COUNTY, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  9. FLOODPLAIN, BUTLER COUNTY, MO

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  10. FLOODPLAIN, CECIL COUNTY, MARYLAND

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineiation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  11. FLOODPLAIN, WAYNE COUNTY, MICHIGAN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the 1-percent-annual-chance...

  12. FLOODPLAIN, DENVER COUNTY, COLORADO

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  13. FLOODPLAIN, DONIPHAN COUNTY, KS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  14. FLOODPLAIN, LINCOLN COUNTY, OK

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  15. FLOODPLAIN, SEMINOLE COUNTY, OK

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  16. FLOODPLAIN, PONTOTOC COUNTY, OK

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  17. Feeding and morphological analysis of the digestive tract of four species of fish (Astyanax altiparanae, Parauchenipterus galeatus, Serrasalmus marginatus and Hoplias aff. malabaricus from the upper Paraná River floodplain, Brazil

    Directory of Open Access Journals (Sweden)

    D. Peretti

    Full Text Available The present study is inspired by the great wealth of species exhibited by the ichthiofauna. Not only concepts and techniques of ecology deserve attention, but also knowledge in other biological areas, such as zoology and anatomy, are necessary. The intention of the present work is to discover the morphology of fish through the study of the digestive tract morphology, associating it to diet data, in order to better understand the biology of four fish species of the upper Paraná River floodplain. The samples were collected quarterly in the year 2000 with gillnets of different meshes. The stomach content was analyzed under a stereoscopic microscope and the frequencies of occurrence (FO and volumetric (FV and the alimentary index (IAi were calculated. Various morphologic characteristics were analyzed and schematized using a light chamber. The species were grouped into two trophic guilds - insectivores (Astyanax altiparanae and Parauchenipterus galeatus and piscivores (Serrasalmus marginatus and Hoplias aff. malabaricus. The first two, although consumers of insects, preyed on different alimentary groups, notably Hymenoptera in the case of A. altiparanae and Coleoptera in the case of P. galeatus. Serrasalmus marginatus and H. aff. malabaricus consumed mainly fishes. However, only pieces of prey were usually found in the stomach content of the first species, whereas whole fishes were found in the stomach content of the second. Astyanax altiparanae exhibited characteristics that allowed it to obtain food in several compartments of the water column. Similarly P. galeatus consumed food resources that were available in all aquatic compartments, although the abilities to capture, to manipulate and to absorb food differed, as shown by the importance of teeth plates and pharyngeal teeth. Serrasalmus marginatus and H. aff. malabaricus, although resembling each other in many aspects of the digestive tract morphology, differed in the strategies used to capture

  18. Health emigration: a challenge in paediatric oncology.

    Science.gov (United States)

    Massimo, Luisa M; Wiley, Thomas J; Caprino, Daniela

    2008-06-01

    For the past 10 years European states have experienced an increasing flow of emigrating families from developing countries seeking better medical care for their sick children. For Italian paediatricians this has become a new challenge, considering the cultural differences in customs regarding the illness. The onset of a life-threatening disease has a strong impact on the family. The natural bond between the patient and the family must be preserved and strengthened; parents should be encouraged to entertain their child during hospitalization. The inclusion of art therapy may facilitate communication, especially for children of a different language and culture. This approach can help medical staff to understand better both the child's and the parents' anxieties and feelings. This article discusses facets of the now well-known phenomenon of ;health emigration', that is, when a family searches abroad in the hope of finding the most advanced medical treatment possible for their sick child.

  19. Institutional Arrangements in seasonal floodplain management under community-based Aquaculture in Bangladesh

    NARCIS (Netherlands)

    Haque, A.B.M.M.; Visser, L.E.; Dey Madan, M.

    2011-01-01

    Seasonal floodplains under private and public ownership in the Indo-Ganges river basin provide food and income for millions of people in Bangladesh. Floodplain ownership regimes are diverse, covering the whole spectrum from public to private ownership. The paper compares community-based fish culture

  20. Shesher and Welala Floodplain Wetlands (Lake Tana, Ethiopia): Are They Important Breeding Habitats for Clarias gariepinus and the Migratory Labeobarbus Fish Species?

    Science.gov (United States)

    Anteneh, Wassie; Dejen, Eshete; Getahun, Abebe

    2012-01-01

    This study aims at investigating the spawning migration of the endemic Labeobarbus species and C. gariepinus from Lake Tana, through Ribb River, to Welala and Shesher wetlands. The study was conducted during peak spawning months (July to October, 2010). Fish were collected through overnight gillnet settings. A total of 1725 specimens of the genus Labeobarbus (13 species) and 506 specimens of C. gariepinus were collected. Six species of Labeobarbus formed prespawning aggregation at Ribb River mouth. However, no Labeobarbus species was found to spawn in the two wetlands. More than 90% of the catch in Welala and Shesher wetlands was contributed by C. gariepinus. This implies that these wetlands are ideal spawning and nursery habitats for C. gariepinus but not for the endemic Labeobarbus species. Except L. intermedius, all the six Labeobarbus species (aggregated at Ribb River mouth) and C. gariepinus (spawning at Shesher and Welala wetlands) were temporally segregated. PMID:22654587

  1. Shesher and Welala Floodplain Wetlands (Lake Tana, Ethiopia: Are They Important Breeding Habitats for Clarias gariepinus and the Migratory Labeobarbus Fish Species?

    Directory of Open Access Journals (Sweden)

    Wassie Anteneh

    2012-01-01

    Full Text Available This study aims at investigating the spawning migration of the endemic Labeobarbus species and C. gariepinus from Lake Tana, through Ribb River, to Welala and Shesher wetlands. The study was conducted during peak spawning months (July to October, 2010. Fish were collected through overnight gillnet settings. A total of 1725 specimens of the genus Labeobarbus (13 species and 506 specimens of C. gariepinus were collected. Six species of Labeobarbus formed prespawning aggregation at Ribb River mouth. However, no Labeobarbus species was found to spawn in the two wetlands. More than 90% of the catch in Welala and Shesher wetlands was contributed by C. gariepinus. This implies that these wetlands are ideal spawning and nursery habitats for C. gariepinus but not for the endemic Labeobarbus species. Except L. intermedius, all the six Labeobarbus species (aggregated at Ribb River mouth and C. gariepinus (spawning at Shesher and Welala wetlands were temporally segregated.

  2. Shesher and Welala floodplain wetlands (Lake Tana, Ethiopia): are they important breeding habitats for Clarias gariepinus and the migratory Labeobarbus fish species?

    Science.gov (United States)

    Anteneh, Wassie; Dejen, Eshete; Getahun, Abebe

    2012-01-01

    This study aims at investigating the spawning migration of the endemic Labeobarbus species and C. gariepinus from Lake Tana, through Ribb River, to Welala and Shesher wetlands. The study was conducted during peak spawning months (July to October, 2010). Fish were collected through overnight gillnet settings. A total of 1725 specimens of the genus Labeobarbus (13 species) and 506 specimens of C. gariepinus were collected. Six species of Labeobarbus formed prespawning aggregation at Ribb River mouth. However, no Labeobarbus species was found to spawn in the two wetlands. More than 90% of the catch in Welala and Shesher wetlands was contributed by C. gariepinus. This implies that these wetlands are ideal spawning and nursery habitats for C. gariepinus but not for the endemic Labeobarbus species. Except L. intermedius, all the six Labeobarbus species (aggregated at Ribb River mouth) and C. gariepinus (spawning at Shesher and Welala wetlands) were temporally segregated.

  3. Mfolozi floodplain flood management

    NARCIS (Netherlands)

    Van Loon, P.; Olij, D.; Osmanoglou, D.; Stuij, S.; Tuinhof, T.; Veraart, S.

    2013-01-01

    The Mfolozi Floodplain is situated in the province of KwaZulu-Natal in South Africa and is part of Africa’s largest estuarine system: the St Lucia system. This estuarine system forms the main part of the iSimangaliso Wetland, which is a World Heritage Site of UNESCO. Since the beginning of the twent

  4. Ecological value of floodplain habitats to razorback suckers in the Upper Colorado River Basin

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report reviews the ecological value of floodplain habitats to recovery of the razorback sucker and the anticipated responses of other endangered, native, and...

  5. Effects of the interannual variations in the flood pulse mediated by hypoxia tolerance: the case of the fish assemblages in the upper Paraná River floodplain

    Directory of Open Access Journals (Sweden)

    Ana Cristina Petry

    Full Text Available The effects of the duration of the floods on abiotic variables and attributes of species tolerant and intolerant to hypoxia (STH and SIH respectively were evaluated in rivers and lakes of the upper Paraná River. Fish were sampled once a year, in six sampling stations, during the high water period from 2000 to 2003. There were overall reductions in dissolved oxygen levels and increases in transparency of water in lakes in years of moderate floods. The duration of floods influenced species differentially based on their tolerance to hypoxia: in moderate floods, richness of STH increased and numerical abundance and biomass of SIH reduced significantly. Opposite relationships were detected between dissolved oxygen and the attributes of STH and SIH. Dissolved oxygen was the best predictor of variability of STH and SIH in years of moderate floods, whereas water transparency predicted significant amounts of STH in years of short floods. Being positively affected by dissolved oxygen reductions, STH seem to take advantages in persisting in seasonally harsh lentic habitats. The incorporation of abiotic data as well the differential tolerance of species to hypoxia would improve further investigations of the effects of interannual variations in the flood pulse on tropical fish assemblagesOs efeitos da duração da cheia sobre algumas variáveis abióticas e atributos das assembleias de peixes (espécies tolerantes e intolerantes à hipóxia, STH e SIH, respectivamente foram avaliados em rios e lagoas do alto rio Paraná. Os peixes foram amostrados uma vez ao ano, em seis localidades, durante o período de águas altas entre 2000 e 2003. Houve reduções generalizadas nos níveis de oxigênio dissolvido e aumentos na transparência da água em lagos em anos de cheias moderadas. A duração das cheias influenciou as espécies diferencialmente em função de sua tolerância à hipóxia: em anos de cheias moderadas, a riqueza das STH aumentou e a abund

  6. [From passive to active: policies for Latin American emigrants].

    Science.gov (United States)

    Maletta, H

    1988-12-01

    The conventional view of emigration holds that it represents a loss of resources from a country and that the only possible policy response is to discourage new emigration while promoting return of those who have left. A new policy is needed based on a fuller understanding of the potential benefits of emigration for the country of origin. The cost of emigration is usually counted as the loss of educational investment, the loss of labor force, and the loss of the contributions to development that would have been made by talented emigrants. But such views usually do not include a serious treatment of the economic problems of labor supply and demand in general or of skilled labor in particular. Underemployment or unemployment of highly educated persons and overproduction of educated persons are problems throughout Latin America and much of the developing world. A truer evaluation of the costs of education which considered decreasing marginal costs rather than average costs per student, nominally variable costs that actually behave as fixed costs, and an adequate assignment of costs for students leaving school before graduating would lead to much lower estimates of average cost per university student in Latin America. Significant emigration may actually result indirectly in an increase in national income by reducing pressure on the labor market and allowing wages to rise for remaining workers. Remittances for emigrants and repatriation of savings may contribute significantly to national income and balance of payments, and may compensate for or even exceed the economic losses of emigration. National policy for emigrants should aim at maximizing the economic benefits of emigration by providing incentives for the accumulation of capital obtained abroad and its transfer to the country of origin. The 1st major goal of emigration policy should be to maintain affective and social ties between the emigrant and the country of origin as a necessary condition for channeling

  7. Emigration flows from North Africa to Europe.

    Science.gov (United States)

    Kassar, Hassène; Marzouk, Diaa; Anwar, Wagida A; Lakhoua, Chérifa; Hemminki, Kari; Khyatti, Meriem

    2014-08-01

    The region of North Africa (NA) represents a striking locality regarding migration with several migration patterns, namely emigration in the form of labour export to Europe and North America and, to a lesser extent, to the Arab Gulf area. The latter has increased enormously in the last decade because of the political instability in most of the NA countries. The aim of the present chapter was to explore the patterns of migration stocks and flows in NA countries, based on several websites, systematic review of journals, comparable data available by the United Nations and by the International Organization of Migration. The NA region has become an area of transit migration and labour migration. Emigrant flows from NA countries towards Europe and North America are increasing this decade more than towards the Arab Gulf countries after being replaced by Asian labour. The recent increase in the proportion of women among the migrant population is remarkable. Remittances sent by African migrants have become an important source of external finance for countries of origin. Transient and irregular migration to Egypt originates at the borders with Sudan, Palestine and Libya with destination to the Euro Mediterranean countries. In Tunisia and Morocco, irregular migrants originate from Sub-Saharan Africa to the northern borders. The NA countries serve as departure rather than destination countries, and migration flows to the Euro-Mediterranean countries through legal or illegal routes.

  8. Emigration of Natural and Hatchery Chinook Salmon and Steelhead Smolts from the Imnaha River, Oregon, 1998-1999 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Cleary, Peter J.; Blenden, Michael L.; Kucera, Paul A.

    2002-08-01

    This report summarizes the results of the Lower Snake River Compensation Plan Hatchery Evaluation Studies (LSRCP) and the Imnaha Smolt Monitoring Program (SMP) for the 1999 smolt migration from the Imnaha River, Oregon. These studies were designed and closely coordinated to provide information about juvenile natural and hatchery chinook salmon (Oncorhynchus tshawytscha) and steelhead (Oncorhynchus mykiss) biological characteristics, behavior and emigrant timing, survival, arrival timing and travel time to the Snake River dams and McNary Dam on the Columbia River. Data collected from these studies are shared with the Fish Passage Center (FPC). These data are essential to quantify smolt survival rates under the current passage conditions and to evaluate the future recovery strategies that seek to optimize smolt survival through the hydroelectric system. Information shared with the FPC assists with in-season shaping of flow and spill management requests in the Snake River reservoirs. The Bonneville Power Administration and the United States Fish and Wildlife Service contracted the Nez Perce Tribe (NPT) to monitor emigration timing and tag 21,200 emigrating natural and hatchery chinook salmon and steelhead smolts from the Imnaha River during the spring emigration period (March 1-June 15) with passive integrated transponder (PIT) tags. The completion of trapping in the spring of 1999 marked the eighth year of emigration studies on the Imnaha River and the sixth year of participating in the FPC smolt monitoring program. Monitoring and evaluation objectives were to: (1) Determine spring emigration timing of chinook salmon and steelhead smolts collected at the Imnaha River trap. (2) Evaluate effects of flow, temperature and other environmental factors on emigration timing. (3) Monitor the daily catch and biological characteristics of juvenile chinook salmon and steelhead smolts collected at the Imnaha River screw trap. (4) Determine emigration timing, travel time, and in

  9. Applying Organizational Commitment and Human Capital Theories to Emigration Research

    Science.gov (United States)

    Verkhohlyad, Olga; McLean, Gary N.

    2012-01-01

    Purpose: This study aims to bring some additional insight into the issue of emigration by establishing a relationship between emigration and psychic return of citizens to their human capital investment in the country. Design/methodology/approach: The article adopts a quantitative research strategy. It applies organizational commitment and human…

  10. Applying Organizational Commitment and Human Capital Theories to Emigration Research

    Science.gov (United States)

    Verkhohlyad, Olga; McLean, Gary N.

    2012-01-01

    Purpose: This study aims to bring some additional insight into the issue of emigration by establishing a relationship between emigration and psychic return of citizens to their human capital investment in the country. Design/methodology/approach: The article adopts a quantitative research strategy. It applies organizational commitment and human…

  11. When the Quality of a Nation Triggers Emigration

    NARCIS (Netherlands)

    H.P. van Dalen (Hendrik); K. Henkens

    2006-01-01

    textabstractWhy do people leave high-income countries with extensive welfare states? This article will examine what underlies the emigration intentions of native-born inhabitants of one industrialized country in particular: the Netherlands. To understand emigration from high-income countries we focu

  12. Order on programmes of assistance favouring emigrants, 15 January 1988.

    Science.gov (United States)

    1988-01-01

    This Order sets forth programs of assistance containing the following categories of aid: 1) aid for elderly emigrants who are Spanish or in the process of recovering Spanish citizenship and are ill and incapable of working; 2) aid to cover the extraordinary costs related to emigration or the return of Spanish emigrant workers and their families who are in a state of need; 3) aid to facilitate the integration into the workplace of returned Spanish emigrants who are unemployed; 4) aid for emigrant centers, associations, and federations helping Spanish emigrants; 5) aid to organizations to improve the assistance and hospital and cultural activities that they provide to Spanish emigrants; 6) aid to organizations that promote professional and occupational orientation and training to facilitate the professional promotion and insertion in the workplace of Spanish emigrant workers; 7) aid to Spanish emigrants and their families resident abroad who have special abilities and wish to pursue higher education and lack the means to do so in Spain; 8) aid to young Spanish emigrants resident abroad to promote their participation in cultural, sociocultural, artistic, and youth activities; 9) aid to promote the social integration of foreign workers in Spain; and 10) aid to programs involving the exchange of young workers within the European Economic Community. Further provisions of the Order deal with beneficiaries of aid, documentation required, and applications, among other things. This Order repeals provisions of an Order of 30 January 1987 (Boletin Oficial del Estado, No. 42, 18 February 1987, pp. 4952-4964) on the same topic in so far as those provisions are in conflict with the provisions of this Order.

  13. 76 FR 21858 - Endangered and Threatened Species; Take of Anadromous Fish

    Science.gov (United States)

    2011-04-19

    ... productivity and calculate annual population estimates, egg-to-emigrant survival, and emigrant-to-adult... spawner-recruit relationship. The research would benefit the fish by giving state and Federal managers.... The researchers propose to evaluate the relationship between timing, fish condition, the...

  14. Does Emigration Affects Wages? A Case Study on Romania

    Directory of Open Access Journals (Sweden)

    Costin-Alexandru Ciupureanu

    2014-11-01

    Full Text Available The migration phenomenon in Romania is characterized by emigration; the number of Romanian migrants skyrocketed after the Romanian accession to the European Union in 2007. With the economic and financial crisis outlook and with the labour market liberalization across the whole European Union for the Romanian workers starting this year the number of Romanian migrants is expected to increase further. Against this background this paper analyses the effects of emigration on wages in Romania. It is found that emigration has a positive impact on wages in Romania.

  15. Fishing

    Institute of Scientific and Technical Information of China (English)

    姜群山

    2002-01-01

    @@ Last Saturday my cousin (表兄) came to my home. We were very happy to see each other. We decided that the next day we went to fish. We got up very early that day. When we left home,the moon could still be seen in the sky.

  16. Emigration dynamics in Sub-Saharan Africa.

    Science.gov (United States)

    Adepoju, A

    1995-01-01

    The introduction to this description of emigration dynamics in sub-Saharan Africa notes that the region is characterized by intensive migration caused by such factors as population growth, negative economic growth, ethnic conflict, and human rights abuses. The second section of the report discusses the fragmentary and incomplete nature of data on international migration in the region, especially data on conventional migration. Section 3 looks at demographic factors such as high population growth, illiteracy levels, HIV seroprevalence, and urbanization which lead to high unemployment and emigration. The fourth section considers the effects of the rapid expansion of education which is outstripping the absorptive capacity of the economies of many countries. Unemployment is a serious problem which is projected to become worse as increases in employment opportunities continue to lag behind increases in output. Sections five, six, and seven of the report describe relevant economic factors such as per capita income, income distribution, the economic resource base, and economic development; poverty; and the effects of economic adjustment programs, especially on employment opportunities and wages in the public and private sectors. The next section is devoted to sociocultural factors influencing migration both on the micro- and the macro-levels, including the influence of ethnicity and ethnic conflicts as well as the domination of leadership positions by members of minority groups. The political factors discussed in section 9 include women's status, repressive regimes, political instability which leads to underdevelopment, and the policies of the Organization of African Unity which broadened the definition of refugees and set inviolable borders of member states identical to those inherited upon independence. Section 10 outlines ecological factors contributing to migration, including the decline in acreage of arable land, soil deterioration, poor land management, and the

  17. Demographic and Related Determinants of Recent Cuban Emigration.

    Science.gov (United States)

    Briquets, Sergio Diaz

    1983-01-01

    Examines principal demographic determinants of recent Cuban emigration and discusses how these demographic variables interact with other social, economic, and political determinants. Suggests that Cuban labor migration is more responsive to demographic factors than some theorists assume. (Author/MJL)

  18. Emigration as an Aspect of the Barbadian Social Environment.

    Science.gov (United States)

    Marshall, Dawn I.

    1980-01-01

    Demonstrates how since emancipation, emigration has always been viewed as a positive experience among Barbadians. Presents demographic data and data on cash value of remittances to the island from Barbadians living abroad. (GC)

  19. Quality of medical training and emigration of physicians from India

    OpenAIRE

    Bang Anand A; Roy Ananya; Kaushik Manas; Mahal Ajay

    2008-01-01

    Abstract Background Physician 'brain drain' negatively impacts health care delivery. Interventions to address physician emigration have been constrained by lack of research on systematic factors that influence physician migration. We examined the relationship between the quality of medical training and rate of migration to the United States and the United Kingdom among Indian medical graduates (1955–2002). Methods We calculated the fraction of medical graduates who emigrated to the United Sta...

  20. Gender, Power, and Emigration From Mexico.

    Science.gov (United States)

    Nobles, Jenna; McKelvey, Christopher

    2015-10-01

    The prevailing model of migration in developing countries conceives of a risk-diversifying household in which members act as a single entity when making migration decisions. Ethnographic studies challenge this model by documenting gender hierarchy in family decisions and arguing that, in many contexts, men and women have differing views on the value of migration. We assess these perspectives using longitudinal survey data from Mexico. We show that Mexican households are heterogeneous in terms of women's decision-making authority and control over resources, and this variation predicts the subsequent emigration of their male partners to the United States. We then use data from a policy experiment to demonstrate that an exogenous increase in a woman's control over household resources decreases the probability that her spouse migrates. Our findings support the presence of important gender differences in how migration is valued. They also suggest that women's role in these decisions is inadvertently underrepresented in studies of migrant families. Staying is also a migration decision, and it is more likely in homes in which women have greater authority. From a policy perspective, the results suggest that Mexican migration is influenced not only by increases in household resources but also by which members of the household control them.

  1. Gender, Power, and Emigration From Mexico

    Science.gov (United States)

    Nobles, Jenna; McKelvey, Christopher

    2015-01-01

    The prevailing model of migration in developing countries conceives of a risk-diversifying household in which members act as a single entity when making migration decisions. Ethnographic studies challenge this model by documenting gender hierarchy in family decisions and arguing that, in many contexts, men and women have differing views on the value of migration. We assess these perspectives using longitudinal survey data from Mexico. We show that Mexican households are heterogeneous in terms of women's decision-making authority and control over resources, and this variation predicts the subsequent emigration of their male partners to the United States. We then use data from a policy experiment to demonstrate that an exogenous increase in a woman's control over household resources decreases the probability that her spouse migrates. Our findings support the presence of important gender differences in how migration is valued. They also suggest that women's role in these decisions is inadvertently underrepresented in studies of migrant families. Staying is also a migration decision, and it is more likely in homes in which women have greater authority. From a policy perspective, the results suggest that Mexican migration is influenced not only by increases in household resources but also by which members of the household control them. PMID:26100982

  2. AN EVALUATION OF ECOSYSTEM RESTORATION AND MANAGEMENT OPTIONS FOR FLOODPLAINS IN THE LOWER GRAND RIVER REGION, MISSOURI

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report provides a hydrogeomorphic (HGM) evaluation of ecosystem restoration and management options for floodplains located along the Lower Grand River located...

  3. Relationships among floodplain water levels, instream dissolved oxygen conditions, and streamflow in the Lower Roanoke River, 1997-2001

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The lower Roanoke River corridor in North Carolina contains a floodplain of national significance. Data from a network of 1 streamflow-measurement site, 13...

  4. Multi-Purpose Optimization for Reconciliation Ecology on an Engineered Floodplain: Yolo Bypass, California

    OpenAIRE

    Suddeth Grimm, Robyn; Lund, Jay R.

    2016-01-01

    doi: http://dx.doi.org/10.15447/sfews.2016v14iss1art5 Floodplains in California and elsewhere are productive natural habitats with high levels of biodiversity, yet today they are often permanently disconnected from rivers by urban or agricultural development and flood management structures. This disconnection poses a threat to many native fish, bird and other species that evolved to take advantage of seasonal floodplain inundation. The traditional restoration approach to th...

  5. FLOODPLAIN, JOHNSON COUNTY, KENTUCKY USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  6. FLOODPLAIN, FRANKLIN COUNTY, MO, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  7. FLOODPLAIN, CLARK COUNTY, KENTUCKY USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  8. Floodplain Mapping, Clay County, IN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  9. FLOODPLAIN, CHAMBERS COUNTY, ALABAMA USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  10. FLOODPLAIN, CLAY COUNTY, SOUTH DAKOTA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  11. Floodplain Mapping, Washita County, Oklahoma

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  12. FLOODPLAIN, Taney COUNTY, Missouri USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  13. FLOODPLAIN MAPPING, Henry COUNTY, IN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  14. FLOODPLAIN, SUWANNEE COUNTY, FLORIDA USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  15. FLOODPLAIN, WILCOX COUNTY, ALABAMA USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  16. FLOODPLAIN, LOGAN COUNTY, KENTUCKY USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  17. FLOODPLAIN, NEW KENT COUNTY, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  18. FLOODPLAIN, HENDERSON COUNTY, KENTUCKY USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  19. FLOODPLAIN, CONVERSE COUNTY,WYOMING

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  20. Quantitative regularities in floodplain formation

    Science.gov (United States)

    Nevidimova, O.

    2009-04-01

    Quantitative regularities in floodplain formation Modern methods of the theory of complex systems allow to build mathematical models of complex systems where self-organizing processes are largely determined by nonlinear effects and feedback. However, there exist some factors that exert significant influence on the dynamics of geomorphosystems, but hardly can be adequately expressed in the language of mathematical models. Conceptual modeling allows us to overcome this difficulty. It is based on the methods of synergetic, which, together with the theory of dynamic systems and classical geomorphology, enable to display the dynamics of geomorphological systems. The most adequate for mathematical modeling of complex systems is the concept of model dynamics based on equilibrium. This concept is based on dynamic equilibrium, the tendency to which is observed in the evolution of all geomorphosystems. As an objective law, it is revealed in the evolution of fluvial relief in general, and in river channel processes in particular, demonstrating the ability of these systems to self-organization. Channel process is expressed in the formation of river reaches, rifts, meanders and floodplain. As floodplain is a periodically flooded surface during high waters, it naturally connects river channel with slopes, being one of boundary expressions of the water stream activity. Floodplain dynamics is inseparable from the channel dynamics. It is formed at simultaneous horizontal and vertical displacement of the river channel, that is at Y=Y(x, y), where х, y - horizontal and vertical coordinates, Y - floodplain height. When dу/dt=0 (for not lowering river channel), the river, being displaced in a horizontal plane, leaves behind a low surface, which flooding during high waters (total duration of flooding) changes from the maximum during the initial moment of time t0 to zero in the moment tn. In a similar manner changed is the total amount of accumulated material on the floodplain surface

  1. FLOODPLAIN, STE. GENEVIEVE COUNTY, MO

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  2. FLOODPLAIN, BOULDER COUNTY, COLORADO, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  3. FLOODPLAIN MAPPING, Uvalde COUNTY, TEXAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  4. FLOODPLAIN, IRON COUNTY, UTAH, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  5. Floodplain, Lawrence County, PA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — This Floodplain Mapping Submission includes a revised flood hazard dataset based on new Coastal Analysis performed on Homer Spit. These mapping files have also been...

  6. FLOODPLAIN, YELLOWSTONE COUNTY, MONTANA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  7. FLOODPLAIN, Talbot County, MARYLAND, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  8. FLOODPLAIN, Oswego COUNTY, New York

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  9. FLOODPLAIN, Montgomery COUNTY, VIRGINIA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  10. FLOODPLAIN MAPPING, HOWARD COUNTY, TEXAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  11. FLOODPLAIN, COLBERT COUNTY, ALABAMA USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  12. FLOODPLAIN, CAMERON COUNTY, PA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  13. FLOODPLAIN MAPPING, Owen COUNTY, IN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  14. FLOODPLAIN, MARSHALL COUNTY, KENTUCKY USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  15. FLOODPLAIN, HIGHLAND COUNTY, OHIO, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  16. FLOODPLAIN, HOLMES COUNTY, OHIO, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  17. Floodplain Mapping, Decatur County, IN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  18. FLOODPLAIN, SCHENECTADY COUNTY, NEW YORK

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  19. FLOODPLAIN, HALE COUNTY, ALABAMA USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  20. FLOODPLAIN, Boyle COUNTY, KENTUCKY USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  1. FLOODPLAIN MAPPING, NEWTON COUNTY, IN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  2. FLOODPLAIN, Cortland COUNTY, New York

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  3. Floodplain, Allen County, OHIO, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  4. FLOODPLAIN, TAYLOR COUNTY, KENTUCKY USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  5. FLOODPLAIN, CLARKE COUNTY, ALABAMA USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  6. FLOODPLAIN, SOMERSET COUNTY, PA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — This Floodplain Mapping Submission includes a new countywide FIS report, but no digital flood hazard data. GG3 was not contracted to prepare digital flood data, only...

  7. Floodplain, Erie County, PA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — This Floodplain Mapping Submission includes a new countywide FIS report, but no digital flood hazard data. GG3 was not contracted to prepare digital flood data, only...

  8. FLOODPLAIN, BEDFORD COUNTY, PA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  9. FLOODPLAIN, MONROE COUNTY, PENNSYLVANIA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  10. FLOODPLAIN, Midland County, MI, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — This Floodplain Mapping Submission includes a new countywide FIS report and a revised flood hazard dataset. Mill Road Engineering restudied the effective approximate...

  11. FLOODPLAIN, ESTILL COUNTY, KENTUCKY USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  12. FLOODPLAIN, FOREST COUNTY, PA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  13. Floodplain Mapping, Rains County, Texas

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  14. FLOODPLAIN, BLAIR COUNTY, PA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  15. FLOODPLAIN, JEFFERSON COUNTY, ALABAMA USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  16. FLOODPLAIN MAPPING, Tulsa County, Oklahoma

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  17. FLOODPLAIN, FRANKLIN COUNTY, PA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  18. FLOODPLAIN, SHELBY COUNTY, ALABAMA USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  19. FLOODPLAIN, LOUISA COUNTY, IOWA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  20. Floodplain, Marshall County, IA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — This Floodplain Mapping Submission includes a new countywide FIS report and revised flood hazard dataset. STARR restudied all flooding sources with greator than 1...

  1. FLOODPLAIN, CLEARFIELD COUNTY, PA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  2. FLOODPLAIN, CHARLES CITY COUNTY, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  3. FLOODPLAIN, Richmond COUNTY, VIRGINIA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  4. FLOODPLAIN, BROADWATER COUNTY, MONTANA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  5. FLOODPLAIN, CHRISTIAN COUNTY, MISSOURI USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  6. FLOODPLAIN MAPPING, POLK COUNTY, FLORIDA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  7. FLOODPLAIN MAPPING, BROWN COUNTY, WI

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  8. FLOODPLAIN, JASPER COUNTY, MISSOURI USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  9. FLOODPLAIN, CERRO GORDO COUNTY, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  10. FLOODPLAIN MAPPING, HARRISON COUNTY, IA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  11. FLOODPLAIN, LIMESTONE COUNTY, ALABAMA USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  12. Floodplain Mapping, Scott County, IN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  13. FLOODPLAIN MAPPING, LINCOLN COUNTY, AR

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  14. FLOODPLAIN, ALLENDALE COUNTY, SOUTH CAROLINA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  15. FLOODPLAIN, RAVALLI COUNTY, MONTANA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  16. FLOODPLAIN, LYON COUNTY, KENTUCKY USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  17. FLOODPLAIN, CRITTENDEN COUNTY, KENTUCKY USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  18. FLOODPLAIN, ANDERSON COUNTY, KENTUCKY, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  19. FLOODPLAIN, DEKALB COUNTY, ALABAMA USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  20. Floodplain Mapping, Pulaski County, IN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  1. FLOODPLAIN, GARRETT COUNTY, Maryland, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  2. FLOODPLAIN MAPPING, Greene County, Arkansas

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  3. FLOODPLAIN MAPPING, Lawrence County, Arkansas

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  4. FLOODPLAIN, HILLSDALE COUNTY, MI, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  5. FLOODPLAIN, ST. JOESEPH COUNTY, MICHIGAN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the 1-percent-annual-chance...

  6. FLOODPLAIN, CALLAWAY COUNTY, MISSOURI USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  7. FLOODPLAIN, AUTAUGA COUNTY, ALABAMA USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  8. FLOODPLAIN, WALKER COUNTY, ALABAMA USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  9. FLOODPLAIN, LAWRENCE COUNTY, KENTUCKY USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  10. FLOODPLAIN, Van Buren COUNTY, MICHIGAN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the 1-percent-annual-chance...

  11. FLOODPLAIN, Nelson COUNTY, KENTUCKY USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  12. FLOODPLAIN, Suffolk COUNTY, New York

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  13. FLOODPLAIN, GREENE COUNTY, ALABAMA USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  14. FLOODPLAIN, Green COUNTY, KENTUCKY USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  15. FLOODPLAIN MAPPING, Greene COUNTY, IN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  16. FLOODPLAIN, ARENAC COUNTY, MICHIGAN, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  17. FLOODPLAIN, CAMBRIA COUNTY, PA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  18. FLOODPLAIN, WASATCH COUNTY, UTAH, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  19. FLOODPLAIN, SANDERS COUNTY, MONTANA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  20. Floodplain Lakes: Evolution and Response

    Science.gov (United States)

    Hausmann, Sonja; Hall, Roland; Gell, Peter

    2011-05-01

    PAGES International Floodplain Lakes Workshop; Fayetteville, Arkansas, 16-19 September 2010 ; Human alteration of the major rivers and floodplains of the world is a global concern because they sustain aquatic ecosystems and supply food and energy to society. When in flood stage, the influence of a river extends across the floodplain and can revitalize productive wetlands. The condition of many rivers has declined worldwide, but the degree of degradation is hard to assess due to natural variability of flow and uncertainty of baseline status. Evidence of changes over decades to millennia in river and wetland conditions, however, can be quantified from physical, chemical, and biological information archived in the accumulated sediments of floodplain lakes.

  1. FLOODPLAIN, HUNTINGDON COUNTY, PA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  2. FLOODPLAIN, BROADWATER COUNTY, MONTANA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  3. FLOODPLAIN, MADISON COUNTY, MONTANA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  4. FLOODPLAIN, SCHOHARIE COUNTY, NEW YORK

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  5. FLOODPLAIN, HOWELL COUNTY, MISSOURI, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  6. FLOODPLAIN, PIKE COUNTY, ALABAMA USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  7. FLOODPLAIN, WEBSTER COUNTY, IOWA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  8. FLOODPLAIN, STORY COUNTY, IOWA USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  9. FLOODPLAIN, WINNESHIEK COUNTY, IOWA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  10. FLOODPLAIN, SHELBY COUNTY, IOWA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  11. FLOODPLAIN, DALLAS COUNTY, ALABAMA USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  12. FLOODPLAIN, CHEROKEE COUNTY, ALABAMA USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  13. FLOODPLAIN, CHILTON COUNTY, ALABAMA USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  14. FLOODPLAIN, CLAY COUNTY, ALABAMA USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  15. FLOODPLAIN, MISSOULA COUNTY, MONTANA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  16. FLOODPLAIN, CASCADE COUNTY, MONTANA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  17. FLOODPLAIN MAPPING, LINCOLN COUNTY, AR

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  18. FLOODPLAIN, SANDERS COUNTY, MONTANA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  19. Floodplain, Androscoggin County, MAINE, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — This Floodplain Mapping Submission includes a revised flood hazard dataset. STARR restudied all flooding sources with greator than 1 sq. mi. drainage area and not...

  20. FLOODPLAIN, Adair COUNTY, KENTUCKY USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  1. FLOODPLAIN, DOUGLAS COUNTY, KANSAS USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  2. FLOODPLAIN MAPPING, CARROLL COUNTY, IN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  3. FLOODPLAIN, Lancaster COUNTY, VIRGINIA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  4. FLOODPLAIN MAPPING, Huntington COUNTY, IN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  5. FLOODPLAIN, CITY OF RADFORD, VIRGINIA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  6. FLOODPLAIN, BRISTOL COUNTY, RHODE ISLAND

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  7. FLOODPLAIN, Allen COUNTY, KENTUCKY USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  8. FLOODPLAIN MAPPING, Ohio COUNTY, IN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping and Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  9. Floodplain Mapping, Posey County, IN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  10. FLOODPLAIN, Harrison COUNTY, KENTUCKY USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  11. FLOODPLAIN, CARBON COUNTY, UTAH, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  12. FLOODPLAIN, LUZERNE COUNTY, PA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  13. FLOODPLAIN, MADISON COUNTY, ALABAMA USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  14. FLOODPLAIN, GREENE COUNTY, OHIO, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  15. FLOODPLAIN, HAMILTON COUNTY, OHIO, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  16. FLOODPLAIN, Dutchess COUNTY, New York

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  17. FLOODPLAIN, Suffolk COUNTY, New York

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  18. FLOODPLAIN, Monroe County, Michigan, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  19. FLOODPLAIN, MESA COUNTY, Colorado, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  20. 1997 Sacramento Inland Floodplain Lidar

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set includes data collected in October 1997 over the Sacramento, CA, floodplain. Laser mapping uses a pulsed laser ranging system mounted onboard an...

  1. FLOODPLAIN, GILES COUNTY, VIRGINIA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  2. FLOODPLAIN, WARREN COUNTY, IOWA USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  3. FLOODPLAIN MAPPING, LINN COUNTY, IA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  4. FLOODPLAIN MAPPING, TRAVIS COUNTY, TEXAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  5. FLOODPLAIN, COLLIER COUNTY, FLORIDA USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  6. FLOODPLAIN, FREMONT COUNTY, COLORADO, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  7. FLOODPLAIN, Oneida COUNTY, New York

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The MIP Floodplain Mapping task has been split into a several sub-tasks in order to better depict the schedule and cost progression towards achieving the final...

  8. FLOODPLAIN, PLATTE COUNTY, MISSOURI USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  9. [Emigration and immigration in Italy. (1861-2011)].

    Science.gov (United States)

    Pasini, Walter

    2011-01-01

    The creation of the Italian Kingdom was characterized by the mass emigration of Italian people, mainly peasants towards European and American destinations. Poverty, unemployment, diseases, like pellagra, malaria and tubercolosis forced millions of Italians to leave the Country. The phenomenon of emigration is usually divided in three periods: the mass emigration from 1976 to 1914, the second one between the two world wars, the third one from 1946 to 1976. In the last quarter of the 20th century the number of repatriations overcome expatriations and the number of immigrants from Albania, Romania, Senegal, Tunisia, China, Philippines grew up becoming more and more important. Italy was a country of emigrants, now is a country of immigrants. It is difficult to compare the work conditions of the Italian emigrants with the new immigrants. At the end of the 19th Century or in the first decades of the 20th Century there were no consideration for human rights, no legislations to protect workers. Immigration from North Africa and from all the low and middle income countries should be studied in all its aspects because it will characterize our future. In the new era of economical globalization, Universities should prepare the new medical doctors to extend their professional culture to a international dimension to be able to cope with the new challenges of our time.

  10. Parasitic copepods in the nasal fossae of five fish species (Characiformes from the upper Paraná river floodplain, Paraná, Brazil = Copépodes parasitos de fossas nasais de cinco espécies de peixes (Characiformes da planície de inundação do alto rio Paraná, Paraná, Brasil

    Directory of Open Access Journals (Sweden)

    Ana Carolina Figueiredo Lacerda

    2007-10-01

    Full Text Available The present work had the objective to study parasitic copepods in thenasal fossae of fish from the upper Paraná river floodplain. Fish were captured in different locations of the floodplain in March, June and September, 2004. A total of 73 specimens (Characiformes were collected, belonging to 4 distinct families and 5 species: Acestrorhynchus lacustris (Acestrorhynchidae, Schizodon borellii (Anostomidae, Prochilodus lineatus (Prochilodontidae, Serrasalmus marginatus and Serrasalmus maculatus (Serrasalmidae. Among 73 fishes examined, 53 were parasitized by nasal fossae copepods, varying from 1 to 146 parasites per host. Parasites found belonged to 3 known species: Gamidactylus jaraquensis Thatcher & Boeger, 1984; Gamispatulus schizodontis Thatcher & Boeger, 1984; and Rhinergasilus piranhus Boeger & Thatcher, 1988. There were differences in parasite corporal measurements and in the quantity of parasites per host in relation to copepod parasites from the Amazon region. The present study constitutes one of the few studies of identification of copepod parasites in the nasal fossae of fish from the Southern region of Brazil.O presente trabalho teve como objetivo o estudo de copépodes parasitos de fossas nasais de peixes da planície de inundação do alto Rio Paraná. As coletas foram realizadas em diversos pontos da planície nos meses de março, junho e setembro de 2004. Foram coletados 73 exemplares de peixes da ordem Characiformes, de quatrofamílias distintas, pertencentes a cinco espécies: Acestrorhynchus lacustris, Prochilodus lineatus, Schizodon borellii, Serrasalmus maculatus e Serrasalmus marginatus. Dentre os 73 peixes examinados, 53 encontravam-se parasitados por copépodes de fossas nasais,variando de 1 a 146 parasitos por peixe. Os parasitos encontrados pertenciam a três espécies conhecidas: Gamidactylus jaraquensis Thatcher & Boeger, 1984; Gamispatulus schizodontis Thatcher & Boeger, 1984 e Rhinergasilus piranhus Boeger & Thatcher

  11. Influência do nível hidrológico sobre a assembléia de peixes em lagoa sazonalmente isolada da planície de inundação do alto rio Paraná Influence of the hydrological level on an assemblage of fishes at a seasonally isolated lagoon of the Upper Paraná River floodplain

    Directory of Open Access Journals (Sweden)

    Samuel Veríssimo

    2002-05-01

    Full Text Available A finalidade deste trabalho foi avaliar o efeito de diferentes períodos hidrológicos na estrutura da assembléia de peixes da lagoa Canal do Meio, planície de inundação do alto rio Paraná, considerando-se alguns atributos das assembléias, tais como: riqueza, diversidade, eqüitabilidade, densidade e standing crop. A densidade específica foi estimada em anos com diferentes níveis hidrológicos, utilizando-se o método de verossimilhança máxima de Zippin. O primeiro ano analisado, 1996, foi caracterizado por baixos níveis de cheia, curto período de inundação e inundação interrompida. Em 1998, o oposto foi observado. As diferenças entre as assembléias de peixes foram atribuídas aos diferentes níveis de cheia. Riqueza das espécies, densidade total e, especialmente, a densidade de peixes migradores foi menor em 1996. Esses resultados demonstram a importância da continuidade e da duração do período de inundação (como observado em 1998 para a conservação da biodiversidade de peixes em ecossistemas de planície de inundação.The purpose of this paper was to assess the effect of different hydrological periods on the structure of a fish assemblage at Canal do Meio Lagoon (Upper Paraná River floodplain, taking into account richness, diversity, equitability, density and standing crop. Specific density was estimated in years with different hydrological regimes, by using the Zippin maximum likelihood method. The first year analyzed, 1996, was characterized by low water levels, short inundation period and interrupted floods. In 1998, the opposite was observed. The differences in the fish assemblages was attributed to these differences in hydrological regimes. Species richness, overall density and, specially, the density of migratory fishes was lower in 1996. These results demonstrate the importance of uninterrupted and long floods (as observed in 1998 to the conservation of fish biodiversity in floodplain ecosystems.

  12. Reducing bias in survival under non-random temporary emigration

    Science.gov (United States)

    Peñaloza, Claudia L.; Kendall, William L.; Langtimm, Catherine Ann

    2014-01-01

    Despite intensive monitoring, temporary emigration from the sampling area can induce bias severe enough for managers to discard life-history parameter estimates toward the terminus of the times series (terminal bias). Under random temporary emigration unbiased parameters can be estimated with CJS models. However, unmodeled Markovian temporary emigration causes bias in parameter estimates and an unobservable state is required to model this type of emigration. The robust design is most flexible when modeling temporary emigration, and partial solutions to mitigate bias have been identified, nonetheless there are conditions were terminal bias prevails. Long-lived species with high adult survival and highly variable non-random temporary emigration present terminal bias in survival estimates, despite being modeled with the robust design and suggested constraints. Because this bias is due to uncertainty about the fate of individuals that are undetected toward the end of the time series, solutions should involve using additional information on survival status or location of these individuals at that time. Using simulation, we evaluated the performance of models that jointly analyze robust design data and an additional source of ancillary data (predictive covariate on temporary emigration, telemetry, dead recovery, or auxiliary resightings) in reducing terminal bias in survival estimates. The auxiliary resighting and predictive covariate models reduced terminal bias the most. Additional telemetry data was effective at reducing terminal bias only when individuals were tracked for a minimum of two years. High adult survival of long-lived species made the joint model with recovery data ineffective at reducing terminal bias because of small-sample bias. The naïve constraint model (last and penultimate temporary emigration parameters made equal), was the least efficient, though still able to reduce terminal bias when compared to an unconstrained model. Joint analysis of several

  13. Esmeralda Energy Company, Final Scientific Technical Report, January 2008. Emigrant Slimhole Drilling Project, DOE GRED III

    Energy Technology Data Exchange (ETDEWEB)

    Deymonaz, John [Fish Lake Green Power Co. (United States); Hulen, Jeffrey B. [Univ. of Utah, Salt Lake City, UT (United States). Energy and Geosciences Inst.; Nash, Gregory D. [Univ. of Utah, Salt Lake City, UT (United States). Energy and Geosciences Inst.; Schriener, Alex [Earth Systems Southwest (United States)

    2008-01-22

    The Emigrant Slimhole Drilling Project (ESDP) was a highly successful, phased resource evaluation program designed to evaluate the commercial geothermal potential of the eastern margin of the northern Fish Lake Valley pull-apart basin in west-central Nevada. The program involved three phases: (1) Resource evaluation; (2) Drilling and resource characterization; and (3) Resource testing and assessment. Efforts included detailed geologic mapping; 3-D modeling; compilation of a GIS database; and production of a conceptual geologic model followed by the successful drilling of the 2,938 foot deep 17-31 slimhole (core hole), which encountered commercial geothermal temperatures (327⁰ F) and exhibits an increasing, conductive, temperature gradient to total depth; completion of a short injection test; and compilation of a detailed geologic core log and revised geologic cross-sections. Results of the project greatly increased the understanding of the geologic model controlling the Emigrant geothermal resource. Information gained from the 17-31 core hole revealed the existence of commercial temperatures beneath the area in the Silver Peak Core Complex which is composed of formations that exhibit excellent reservoir characteristics. Knowledge gained from the ESDP may lead to the development of a new commercial geothermal field in Nevada. Completion of the 17-31 core hole also demonstrated the cost-effectiveness of deep core drilling as an exploration tool and the unequaled value of core in understanding the geology, mineralogy, evolutional history and structural aspects of a geothermal resource.

  14. Identifying Rates of Emigration in the United States Using Administrative Earnings Records

    Directory of Open Access Journals (Sweden)

    Jonathan A. Schwabish

    2011-01-01

    Full Text Available This paper undertakes a new strategy to estimate emigration rates among US immigrants by inferring the probability of emigration using longitudinal administrative earnings data. Two groups of emigrants are evaluated separately: those who emigrate from the United States and those who leave both the United States and the Social Security system. About 1.0 to 1.5 percent of the foreign-born population emigrate from the USA every year, and between about 0.8 and 1.2 percent of foreign-born workers emigrate from the Social Security system. Regression analysis suggests that immigrants with lower earnings are more likely to emigrate and that the likelihood of emigrating from the United States increases with age, but is unchanged for those leaving the US Social Security system.

  15. Linguistic identity and the study of emigrant letters: Irish English in the making

    OpenAIRE

    Amador Moreno, Carolina P; McCafferty, Kevin

    2012-01-01

    This paper builds on the findings from a larger research project that analyses written data extracted from a corpus of emigrant letters. This preliminary study is an exploration of the Irish Emigration Database (IED), an electronic word-searchable collection of primary source documents on Irish emigration to North America (USA and Canada) in the 18th and 19th centuries. The IED contains a variety of original material including emigrant letters, newspaper articles, shippin...

  16. The effects of varied densities on the growth and emigration of adult cutthroat trout and brook trout in fenced stream enclosures

    Science.gov (United States)

    Buys, D.J.; Hilderbrand, R.H.; Kershner, J.L.

    2009-01-01

    We evaluated the effects of various density treatments on adult fish growth and emigration rates between Bonneville cutthroat trout Oncorhynchus clarki utah and brook trout Salvelinus fontinalis in stream enclosures in Beaver Creek, Idaho, We used 3 density treatments (low, ambient, and high fish densities) to evaluate density-related effects and to ensure a response. Intraspecific ambient-density tests using cutthroat trout only were also performed. Results indicated an absence of cage effects in the stream enclosures and no differences in fish growth between ambient-density stream-enclosure fish and free-range fish. Brook trout outgrew and moved less than cutthroat trout in the stream enclosures, especially as density increased, In all 3 density treatments, brook trout gained more weight than cutthroat trout, with brook trout gaining weight in each density treatment and cutthroat trout losing weight at the highest density. At high densities, cutthroat trout attempted to emigrate more frequently than brook trout in sympatry and allopatry. We observed a negative correlation between growth and emigration for interspecific cutthroat trout, indicating a possible competitive response due to the presence of brook trout. We observed similar responses for weight and emigration in trials of allopatric cutthroat trout, indicating strong intraspecific effects as density increased. While cutthroat trout showed a response to experimental manipulation with brook trout at different densities, there has been long-term coexistence between these species in Beaver Creek, This system presents a unique opportunity to study the mechanisms that lead cutthroat trout to coexist with rather than be replaced by nonnative brook trout.

  17. An index of floodplain surface complexity

    Science.gov (United States)

    Scown, Murray W.; Thoms, Martin C.; DeJager, Nathan R.

    2016-01-01

    Floodplain surface topography is an important component of floodplain ecosystems. It is the primary physical template upon which ecosystem processes are acted out, and complexity in this template can contribute to the high biodiversity and productivity of floodplain ecosystems. There has been a limited appreciation of floodplain surface complexity because of the traditional focus on temporal variability in floodplains as well as limitations to quantifying spatial complexity. An index of floodplain surface complexity (FSC) is developed in this paper and applied to eight floodplains from different geographic settings. The index is based on two key indicators of complexity, variability in surface geometry (VSG) and the spatial organisation of surface conditions (SPO), and was determined at three sampling scales. FSC, VSG, and SPO varied between the eight floodplains and these differences depended upon sampling scale. Relationships between these measures of spatial complexity and seven geomorphological and hydrological drivers were investigated. There was a significant decline in all complexity measures with increasing floodplain width, which was explained by either a power, logarithmic, or exponential function. There was an initial rapid decline in surface complexity as floodplain width increased from 1.5 to 5 km, followed by little change in floodplains wider than 10 km. VSG also increased significantly with increasing sediment yield. No significant relationships were determined between any of the four hydrological variables and floodplain surface complexity.

  18. 32 CFR 644.320 - Floodplain management.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 4 2010-07-01 2010-07-01 true Floodplain management. 644.320 Section 644.320... ESTATE HANDBOOK Disposal § 644.320 Floodplain management. The requirements of Executive Order 11988, Floodplain Management, 42 FR 26951, (24 May 1977) and its implementation will be outlined in subpart H (to be...

  19. A model for estimating passive integrated transponder (PIT) tag antenna efficiencies for interval-specific emigration rates

    Science.gov (United States)

    Horton, G.E.; Dubreuil, T.L.; Letcher, B.H.

    2007-01-01

    Our goal was to understand movement and its interaction with survival for populations of stream salmonids at long-term study sites in the northeastern United States by employing passive integrated transponder (PIT) tags and associated technology. Although our PIT tag antenna arrays spanned the stream channel (at most flows) and were continuously operated, we are aware that aspects of fish behavior, environmental characteristics, and electronic limitations influenced our ability to detect 100% of the emigration from our stream site. Therefore, we required antenna efficiency estimates to adjust observed emigration rates. We obtained such estimates by testing a full-scale physical model of our PIT tag antenna array in a laboratory setting. From the physical model, we developed a statistical model that we used to predict efficiency in the field. The factors most important for predicting efficiency were external radio frequency signal and tag type. For most sampling intervals, there was concordance between the predicted and observed efficiencies, which allowed us to estimate the true emigration rate for our field populations of tagged salmonids. One caveat is that the model's utility may depend on its ability to characterize external radio frequency signals accurately. Another important consideration is the trade-off between the volume of data necessary to model efficiency accurately and the difficulty of storing and manipulating large amounts of data.

  20. Explaining emigration intentions and behaviour in the Netherlands, 2005-10

    NARCIS (Netherlands)

    van Dalen, H.P.; Henkens, K.

    2013-01-01

    We examined the emigration intentions of native-born Dutch residents and their subsequent emigration behaviour from 2005 to 2010. Data were collected from two surveys on emigration intentions, one conducted locally and one nationally. A number of novel results stand out. First, intentions were good

  1. Longing for the good life: understanding emigration from a high-income country

    NARCIS (Netherlands)

    van Dalen, H.P.; Henkens, C.J.I.M.

    2007-01-01

    The outline of this article is as follows. First, we provide information on trends in emigration from highly developed countries. We review salient aspects of Dutch emigration history to provide a broader context for the extraordinary nature of today’s upsurge in emigration. We describe the theoreti

  2. Explaining emigration intentions and behaviour in the Netherlands, 2005-10

    NARCIS (Netherlands)

    van Dalen, H.P.; Henkens, K.

    2013-01-01

    We examined the emigration intentions of native-born Dutch residents and their subsequent emigration behaviour from 2005 to 2010. Data were collected from two surveys on emigration intentions, one conducted locally and one nationally. A number of novel results stand out. First, intentions were good

  3. Just One of the 'PIIGS' or a European Outlier? Studying Irish Emigration from a Comparative Perspective

    NARCIS (Netherlands)

    Glynn, I.A.

    2015-01-01

    The return of high levels of emigration has become one of the most debated and sensitive social topics in Ireland in recent years. But Irish emigration continues to be discussed in the singular rather than the plural. This paper compares Irish emigration to other Eurozone states that also encountere

  4. Colombian Emigration: A Research Note on Its Probable Quantitative Extent.

    Science.gov (United States)

    Diaz-Briquets, Sergio; Frederick, Melinda J.

    1984-01-01

    Provides a brief overview of quantitative estimates of Colombian emigration including a discussion of how estimates were prepared. Concludes that estimates of international migration from Colombia are inflated and that such migration is not as significant as some observers claim. (CMG)

  5. Attachment styles, personality, and Dutch emigrants ' intercultural adjustment

    NARCIS (Netherlands)

    Bakker, W; Van Oudenhoven, JP; Van Der Zee, KI

    2004-01-01

    The present study examines the relationship of adult attachment styles with personality and psychological and sociocultural adjustment. A sample of 847 first-generation Dutch emigrants filled out measures for attachment styles, the Big Five, and indicators of psychological and sociocultural adjustme

  6. Attachment styles, personality, and Dutch emigrants ' intercultural adjustment

    NARCIS (Netherlands)

    Bakker, W; Van Oudenhoven, JP; Van Der Zee, KI

    2004-01-01

    The present study examines the relationship of adult attachment styles with personality and psychological and sociocultural adjustment. A sample of 847 first-generation Dutch emigrants filled out measures for attachment styles, the Big Five, and indicators of psychological and sociocultural adjustme

  7. Quality of medical training and emigration of physicians from India

    Directory of Open Access Journals (Sweden)

    Bang Anand A

    2008-12-01

    Full Text Available Abstract Background Physician 'brain drain' negatively impacts health care delivery. Interventions to address physician emigration have been constrained by lack of research on systematic factors that influence physician migration. We examined the relationship between the quality of medical training and rate of migration to the United States and the United Kingdom among Indian medical graduates (1955–2002. Methods We calculated the fraction of medical graduates who emigrated to the United States and the United Kingdom, based on rankings of medical colleges and universities according to three indicators of the quality of medical education (a student choice, (b academic publications, and (c the availability of specialty medical training. Results Physicians from the top quintile medical colleges and of universities were 2 to 4 times more likely to emigrate to the United States and the United Kingdom than graduates from the bottom quintile colleges and universities. Conclusion Graduates of institutions with better quality medical training have a greater likelihood of emigrating. Interventions designed to counter loss of physicians should focus on graduates from top quality institutions.

  8. Prague as the Centre of Russian Educational Emigration: Czechoslovakia's Educational Policy for Russian Emigrants (1918-1938)

    Science.gov (United States)

    Mchitarjan, Irina

    2009-01-01

    This article looks at the role played by the Czechoslovakian Republic in the establishment and maintenance of the "Russian education system in exile" in Europe during the 1920s and 1930s. No other country supported the educational activities of the Russian emigrants as generously as Czechoslovakia. Thanks to this extensive and targeted support, a…

  9. Floodplain heterogeneity and meander migration

    Science.gov (United States)

    The impact of horizontal heterogeneity of floodplain soils on rates and patterns of meander migration is analyzed with a Ikeda et al. (1981)-type model for hydrodynamics and bed morphodynamics, coupled with a physically-based bank erosion model according to the approach developed by Motta et al. (20...

  10. Endothelial domes encapsulate adherent neutrophils and minimize increases in vascular permeability in paracellular and transcellular emigration.

    Directory of Open Access Journals (Sweden)

    Mia Phillipson

    Full Text Available Local edema, a cardinal sign of inflammation associates closely with neutrophil emigration. Neutrophil emigration has been described to occur primarily through endothelial junctions (paracellular and more rarely directly through endothelial cells (transcellular. Recently, we reported that unlike in wild-type (wt mice, Mac-1-/- (CD11b neutrophils predominantly emigrated transcellularly and was significantly delayed taking 20-30 min longer than the paracellular emigration (wt. In the present study we noted significant anatomical disruption of the endothelium and hypothesized that transcellular emigration would greatly increase vascular permeability. Surprisingly, despite profound disruption of the endothelial barrier as the neutrophils moved through the cells, the changes in vascular permeability during transcellular emigration (Mac-1-/- were not increased more than in wt mice. Instead increased vascular permeability completely tracked the number of emigrated cells and as such, permeability changes were delayed in Mac-1-/- mice. However, by 60 min neutrophils from both sets of mice were emigrating in large numbers. Electron-microscopy and spinning disk multichannel fluorescence confocal microscopy revealed endothelial docking structures that progressed to dome-like structures completely covering wt and Mac-1-/- neutrophils. These domes completely enveloped the emigrating neutrophils in both wt and Mac-1-/- mice making the mode of emigration underneath these structures extraneous to barrier function. In conclusion, predominantly paracellular versus predominantly transcellular emigration does not affect vascular barrier integrity as endothelial dome-like structures retain barrier function.

  11. Endothelial domes encapsulate adherent neutrophils and minimize increases in vascular permeability in paracellular and transcellular emigration.

    Science.gov (United States)

    Phillipson, Mia; Kaur, Jaswinder; Colarusso, Pina; Ballantyne, Christie M; Kubes, Paul

    2008-02-20

    Local edema, a cardinal sign of inflammation associates closely with neutrophil emigration. Neutrophil emigration has been described to occur primarily through endothelial junctions (paracellular) and more rarely directly through endothelial cells (transcellular). Recently, we reported that unlike in wild-type (wt) mice, Mac-1-/- (CD11b) neutrophils predominantly emigrated transcellularly and was significantly delayed taking 20-30 min longer than the paracellular emigration (wt). In the present study we noted significant anatomical disruption of the endothelium and hypothesized that transcellular emigration would greatly increase vascular permeability. Surprisingly, despite profound disruption of the endothelial barrier as the neutrophils moved through the cells, the changes in vascular permeability during transcellular emigration (Mac-1-/-) were not increased more than in wt mice. Instead increased vascular permeability completely tracked the number of emigrated cells and as such, permeability changes were delayed in Mac-1-/- mice. However, by 60 min neutrophils from both sets of mice were emigrating in large numbers. Electron-microscopy and spinning disk multichannel fluorescence confocal microscopy revealed endothelial docking structures that progressed to dome-like structures completely covering wt and Mac-1-/- neutrophils. These domes completely enveloped the emigrating neutrophils in both wt and Mac-1-/- mice making the mode of emigration underneath these structures extraneous to barrier function. In conclusion, predominantly paracellular versus predominantly transcellular emigration does not affect vascular barrier integrity as endothelial dome-like structures retain barrier function.

  12. Explaining emigration intentions and behaviour in the Netherlands, 2005-10.

    Science.gov (United States)

    van Dalen, Hendrik P; Henkens, Kène

    2013-07-01

    We examined the emigration intentions of native-born Dutch residents and their subsequent emigration behaviour from 2005 to 2010. Data were collected from two surveys on emigration intentions, one conducted locally and one nationally. A number of novel results stand out. First, intentions were good predictors of future emigration: 34 per cent of those who had stated an intention to emigrate actually emigrated within the 5-year follow-up period. Second, the personality of potential migrants and their discontent with the quality of the public domain in the Netherlands (e.g., crowded space and inadequate access to unspoilt nature, pollution, crime level, mentality of people) were the strongest contributors to the motivation to move abroad. Third, the main difference between movers and those who stated intentions to emigrate but had not (yet) followed through was their state of health: healthy people were more likely to follow through with their migration intentions than those in poorer health.

  13. 75 FR 73059 - Record of Decision and Floodplain Statement of Findings for the Cushman Hydroelectric Project...

    Science.gov (United States)

    2010-11-29

    ... the Tribe, and other interested parties concurred in the MOA. The MOA includes a Treatment Plan that... Part 1022 (Compliance with Floodplain and Wetland Environmental Review Requirements), DOE considered... benefits anadromous fish by improving channel habitat and removing instream barriers. The use of a floating...

  14. Space Insect-Food Aiming at Mars Emigration

    Science.gov (United States)

    Katayama, Naomi; Hashimoto, Hirofumi; Yamashita, Masamichi; Takase, Yoshimi; Kawai, Mika; Space Agriculture Task Force

    We study space insect-food during 10 years. We are aiming at Mars emigration. In space agriculture, insect is the important creature which we cannot miss. It is necessary for the pollination of the plant, and it is rich to protein and lipid as food. We reported that silkworm, bee, grasshopper, snail, fly and termite (white ant) are insects necessary for astroponics in particular last time. We make clothes using silk thread, and the pupa becomes the food. In addition, the clothes can make food as protein when we need not to use it. The bee is a very important insect in the space agriculture, too. We calculated the nourishment ingredient of those insects and thought about ideal space foods which ara necessary for Mars emigration. We will introduce good balance space foods.

  15. Psychoanalysis and the Emigration of Central and Eastern European Intellectuals().

    Science.gov (United States)

    Erős, Ferenc

    2016-12-01

    One of the most important phenomena in the intellectual history of the 20th century was the exodus of the European mind, the emigration of persons, ideas, techniques, and institutions in the vast areas of social, human, and natural sciences, as well as in literature and the visual arts. Among these exiled intellectuals, psychoanalysts formed a special group. This paper examines the major lines of the emigration of psychoanalysts from the countries of issue to the countries of reception. It focuses, in particular on Hungarian analysts and analytic candidates who left their country of birth in two waves, first after the failure of revolutions in 1918/19 for Berlin, and then after 1938, to escape the Nazis. The paper comments on the existential situation of émigré psychoanalysts in light of Hannah Arendt's writings on refugees.

  16. "Should I Stay or Should I Go? - The Emigrating Immigrants"

    DEFF Research Database (Denmark)

    Rezaei, Shahamak; Goli, Marco

    2011-01-01

    in keeping those immigrants who contribute to the development of the universal welfare state, while reducing the burden of the others. Thus, the controversial question arises: whom among the immigrants from non-western countries will chose to stay in their new country and who will emigrate again......? The following is an empirical clarification of this issue, the state of the art and the attitudes and future trends, based on two sets of comprehensive quantitative data collection....

  17. Modeling the effects of physician emigration on human development.

    OpenAIRE

    2011-01-01

    We analyzed the effects of physician emigration on human development indicators in developing countries. First, the geographical distribution of physician brain drain was documented for the period 1991–2004. Second, random and fixed effects models were employed to investigate the effects of physicians in the home countries and abroad on child mortality and vaccination rates. Third, models were estimated to investigate migration-induced incentives in the medical sector that would increase the ...

  18. The Russian musical emigration in Yugoslavia after 1917

    Directory of Open Access Journals (Sweden)

    Melita Milin

    2003-01-01

    Full Text Available Around forty thousand Russian emigrants settled in Yugoslavia running away from the terror of the 1917 Revolution. A high percentage of them were writers, artists, musicians and ballet dancers. Their greatest contribution to Yugoslav musical culture consists in the important acceleration they brought to the development of the domestic scene. Especially valuable were the activities of opera singers and directors, ballet dancers and choreographers, scenery designers, conductors of church choirs and music pedagogues.

  19. Emigration preferences and plans among medical students in Poland

    Directory of Open Access Journals (Sweden)

    Krajewski-Siuda Krzysztof

    2012-04-01

    Full Text Available Abstract Background Migration and ethical recruitment of health care workers is receiving increased attention worldwide. Europe’s aging population is creating new opportunities for medical doctors for finding employment in other countries, particularly those of a better standard of living. Methods We conducted a survey among 1214 medical students in five out of eleven universities in Poland with medical schools in October 2008. A series of statistical tests was applied to analyse the characteristics of potential migrants. Projections were obtained using statistical analyses: descriptive, multifactorial logistic regression and other statistical methods . Results We can forecast that 26–36% of Polish medical students will emigrate over the next few years; 62% of respondents estimated the likelihood of emigration at 50%. Students in their penultimate year of study declared a stronger desire to migrate than those in the final year. At the same time, many students were optimistic about career opportunities in Poland. Also noted among students were: the decline in interest in leaving among final year students, their moderate elaboration of departure plans, and their generally optimistic views about the opportunities for professional development in Poland. Conclusions The majority of Polish students see the emigration as a serious alternative to the continuation of their professional training. This trend can pose a serious threat to the Polish health care system, however the observed decline of the interest in leaving among final year students, the moderate involvement in concrete departure plans and the optimistic views about the opportunities for professional development in Poland suggest that the actual scale of brain drain of young Polish doctors due to emigration will be more limited than previously feared.

  20. Population dynamics of the yellow piranha Serrasalmus spilopleura Kner, 1858 (Characidae, Serrasalminae) in Amazonian floodplain lakes

    OpenAIRE

    Fabricio Barros Sousa; Luiza Prestes; Maria Gercilia Mota Soares

    2013-01-01

    Fish is the main source of protein in the Amazon and fishing is one of the most important sources of income for the Amazonian population. Serrasalmus spilopleura is a species that have been increasingly consumed by riverside communities, although it is only occasionally commercialized at regional markets. Therefore, this work sought to generate information about the population biology of S. spilopleura captured in floodplain lakes, jaiteua and Sao Lourenco, in Manacapuru, Amazonas State. The ...

  1. Inference about density and temporary emigration in unmarked populations

    Science.gov (United States)

    Chandler, Richard B.; Royle, J. Andrew; King, David I.

    2011-01-01

    Few species are distributed uniformly in space, and populations of mobile organisms are rarely closed with respect to movement, yet many models of density rely upon these assumptions. We present a hierarchical model allowing inference about the density of unmarked populations subject to temporary emigration and imperfect detection. The model can be fit to data collected using a variety of standard survey methods such as repeated point counts in which removal sampling, double-observer sampling, or distance sampling is used during each count. Simulation studies demonstrated that parameter estimators are unbiased when temporary emigration is either "completely random" or is determined by the size and location of home ranges relative to survey points. We also applied the model to repeated removal sampling data collected on Chestnut-sided Warblers (Dendroica pensylvancia) in the White Mountain National Forest, USA. The density estimate from our model, 1.09 birds/ha, was similar to an estimate of 1.11 birds/ha produced by an intensive spot-mapping effort. Our model is also applicable when processes other than temporary emigration affect the probability of being available for detection, such as in studies using cue counts. Functions to implement the model have been added to the R package unmarked.

  2. POLITICAL LIFE OF THE COSSACKS IN EMIGRATION: TENDENCIES AND FEATURES

    Directory of Open Access Journals (Sweden)

    Matsievsky German Olegovitch

    2013-03-01

    Full Text Available Purpose: To consider the main tendencies and features of political life of the Cossack emigration in the XX century. Methodology: Methodological basis of research are the standard principles of a historicism and the objectivity, assuming the concrete historical approach to the analysis of events in their dialectic development. Results: It is revealed that the Cossack emigration lost the political positions. Separation from sociocultural and geographical space of formation and development of traditional culture; foreign culture environment; refusal of the Cossack ideas of a collectivism and military brotherhood; destruction of the main institute of preservation and transfer of historical and cultural experience – a family; the constant feeling of «temporariness», despair and loss of belief in the future – all this generated the phenomenon called in cross-cultural psychology «cultural shock». Also crisis of ethnic and sociocultural consciousness and self-identification increased. Practical implications: Results of research can be interesting to the experts who are taking up the problems stories of the Cossacks in emigration.

  3. [Preventive health control of U. S. emigrants at the beginning of 20th century on the example of hotel "Emigrants" in Rijeka].

    Science.gov (United States)

    Rotim Malvić, Jasna

    2015-01-01

    Rijeka inscribed herself on the list of great European emigration ports like Hamburg, Bremen, Liverpool in the end of the year 1903 when a ship of the British Cunard Line established a travel line from Rijeka to New York. Up to the year 1914, 317639 passengers - emigrants travelled to America from the port of Rijeka. The large flow of people caused problems for the city, for that reason, already in 1906 did the Hungarian ministry of home affairs started the construction of a grandiose building intended for the emigrants. When it was opened in 1908 it was named Hotel Emigrants and had a capacity of 2500 guests. The name Hotel was given to him because of the highest construction and sanitary standards applied during his construction, but also because of comfort provided for the emigrants, large bright dormitories, living rooms, one big and spacious terrace and a number of smaller ones indicated more to a touristic hotel than to a house for emigrants. Health surveillance of emigrants was performed by Dr. David Friedman, Dr. Arturo Jellouscheg and Dr. Emil Tauffer. They were in charge in front of the Maritime Gubernia in Rijeka, the U.S. consulate in Rijeka and the Adria Maritime Society. Although the city authorities and the Hungarian authorities boasted of the hotel and the rigid medical control over immigrants which was done there, American authorities have still often returned some emigrants, at the expense of the company, after inspection at Ellis Island revealing that before landing some individuals are sick.

  4. The Bernese Emigration to the United States, 1870–1930: A Quantitative Analysis of Economic Factors

    Directory of Open Access Journals (Sweden)

    Simon Geissbühler

    1999-10-01

    Full Text Available The United States was the most important destination for emigrants from the Swiss canton of Bern during the period of mass emigration in the late 19th and the early 20th century. The present article looks at the economic factors leading to this mass emigration. Using bivariate correlations, this study demonstrates that quantitative analysis is a powerful tool in historical emigration research. The data underlines the two following theses. First, the better the economy in Bern, the lower the rate of emigration to the United States. Secondly, the better the economy in the United States, the higher the rate of emigration from Bern. Hence, both pull and push factors played an important role determining emigration from Bern to the United States. The most closely related to the rate of emigration were the independent variables emigration to the USA in year t-1, the investments in structural engineering in Bern, railroad construction in the USA and the number of Bernese on welfare. The results clearly show that Bernese emigration was primarily a socio-economic mass movement.

  5. Estimating temporary emigration and breeding proportions using capture-recapture data with Pollock's robust design

    Science.gov (United States)

    Kendall, W.L.; Nichols, J.D.; Hines, J.E.

    1997-01-01

    Statistical inference for capture-recapture studies of open animal populations typically relies on the assumption that all emigration from the studied population is permanent. However, there are many instances in which this assumption is unlikely to be met. We define two general models for the process of temporary emigration, completely random and Markovian. We then consider effects of these two types of temporary emigration on Jolly-Seber (Seber 1982) estimators and on estimators arising from the full-likelihood approach of Kendall et al. (1995) to robust design data. Capture-recapture data arising from Pollock's (1982) robust design provide the basis for obtaining unbiased estimates of demographic parameters in the presence of temporary emigration and for estimating the probability of temporary emigration. We present a likelihood-based approach to dealing with temporary emigration that permits estimation under different models of temporary emigration and yields tests for completely random and Markovian emigration. In addition, we use the relationship between capture probability estimates based on closed and open models under completely random temporary emigration to derive three ad hoc estimators for the probability of temporary emigration, two of which should be especially useful in situations where capture probabilities are heterogeneous among individual animals. Ad hoc and full-likelihood estimators are illustrated for small mammal capture-recapture data sets. We believe that these models and estimators will be useful for testing hypotheses about the process of temporary emigration, for estimating demographic parameters in the presence of temporary emigration, and for estimating probabilities of temporary emigration. These latter estimates are frequently of ecological interest as indicators of animal movement and, in some sampling situations, as direct estimates of breeding probabilities and proportions.

  6. Biological Indicator Systems in Floodplains - a Review

    Science.gov (United States)

    Dziock, Frank; Henle, Klaus; Foeckler, Francis; Follner, Klaus; Scholz, Mathias

    2006-08-01

    Based on a literature review, the different approaches to biological indicator systems in floodplains are summarised. Four general categories of bioindication are defined and proposed here: 1. Classification indicators, 2.1 Environmental indicators, 2.2 Biodiversity indicators, 3. Valuation indicators. Furthermore, existing approaches in floodplains are classified according to the four categories. Relevant and widely used approaches in floodplains are explained in more detail. The results of the RIVA project are put into the context of these indication approaches. It is concluded that especially functional assessment approaches using biological traits of the species can be seen as very promising and deserve more attention by conservation biologists and floodplain ecologists.

  7. Emigration and the Processes of Globalization: Challenges, Contemporary Trends, Issues, Solutions

    Directory of Open Access Journals (Sweden)

    Indrė Naulickaitė

    2016-06-01

    Full Text Available The article complexly investigates the processes of emigration from Lithuania and other European Union countries in Central and Eastern Europe which appear under contemporary conditions of economic globalization. The main attention is given to those determinants of emigration which are caused by the processes taking place in the global economy, social and economic circumstances occuring globally. The theoretical study for the processes of migration and emigration in contemporary environment of globalization has been made. The original theoretical conception intended to analyze migration flows, motives and reasons of emigration, allowing to complexly assess the impact of various economic determinants has been suggested: on the basis of this conception researches of emigration from Lithuania and other European Union countries in Central and Eastern Europe have been carried out and peculiarities of the processes of emigration reflecting the impact of circumstances determined by economic globalization have been highlighted. Carrying out empirical researches the instrumentation of economic mathematical modeling has been used.

  8. Moving to the Welfare Countries: Emigrants from Serbia 1961-2002

    Directory of Open Access Journals (Sweden)

    Milka Bubalo-Živković

    2014-03-01

    Full Text Available The main characteristic of Balkan region in history is permanent migration. The character of this migration is changed from period to period. After WWII in Serbia migrations had economical character. These migrations are dominated till the last decade of XX century. According to the 2002 census, in foreign countries lives more than 400,000 citizens of Serbia. About 50 percent of citizens emigrated in decades before 1990, and the next 50 percent emigrated in period between 1990 and 2002. About 80 percent of emigrations are from central Serbia, and rest are from Vojvodina Province. Major emigration from Serbia has been directed towards Austria, Germany and Switzerland. The number of emigrants from Serbia is also high in France, Italy and Sweden. Outside of Europe most of the emigrants went in the United States of America.

  9. Emigration of a colony of the leaf-cutting ant Acromyrmex heyeri Forel (Hymenoptera, Formicidae

    Directory of Open Access Journals (Sweden)

    Mariane Aparecida Nickele

    2012-09-01

    Full Text Available Emigration of a colony of the leaf-cutting ant Acromyrmex heyeri Forel (Hymenoptera, Formicidae. Colony migration is a poorly studied phenomenon in leaf-cutting ants. Here we report on the emigration of a colony of the leaf-cutting ant A. heyeri in Brazil. The colony emigrated to a new location 47.4 m away from the original nest site, possibly because it had undergone considerable stress due to competitive interactions with a colony of Acromyrmex crassispinus.

  10. Environmental emigration stress of slope farmland in the Three Gorges area

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    The project of 'grain for green', to restore woodland and grass by retreating from slopefarmland, as a fundamental measure of eeo-environmental rehabilitation, is being conducted in thereservoir area of the Three Gorges gradually. However, the de-farming of slope farmland will reducethe amount of farmland in de-farmed areas, especially in the areas with concentrated slope farmland,which would cause the problems of environmental emigration. The people who cannot regain enoughfarmland by relocating farmlands within village after de-farming and have to emigrate to other placesare called environmental emigrants or ecological emigrants. In the research, a de-farming stress indexmodel and an environmental emigration model are developed based on GRID data, and the potentialamount of environmental emigration caused by de-farming of slope farmland in the reservoir area issimulated aided with GIS. The simulation indicates that the potential emigration amount caused byde-farming is quite large. When the de-farming stress index reaches 40%, the amount is as large as890,000 people, which is equivalent to the emigrants caused by the submergence of the ThreeGorges reservoir. So it should be considered as a big problem during the eco-environmentalrehabilitation in this area. Some suggestions are raised to tackle the problem. Firstly, the emigrationplan should be included in the de-farming plan. Secondly, some provinces, especially those located inthe lower reaches of the Yangtze River, should accommodate part of the environmental emigrants.

  11. A field test of the extent of bias in selection estimates after accounting for emigration

    Science.gov (United States)

    Letcher, B.H.; Horton, G.E.; Dubreuil, T.L.; O'Donnell, M. J.

    2005-01-01

    Question: To what extent does trait-dependent emigration bias selection estimates in a natural system? Organisms: Two freshwater cohorts of Atlantic salmon (Salmo salar) juveniles. Field site: A 1 km stretch of a small stream (West Brook) in western Massachusetts. USA from which emigration could be detected continuously. Methods: Estimated viability selection differentials for body size either including or ignoring emigration (include = emigrants survived interval, ignore = emigrants did not survive interval) for 12 intervals. Results: Seasonally variable size-related emigration from our study site generated variable levels of bias in selection estimates for body size. The magnitude of this bias was closely related with the extent of size-dependent emigration during each interval. Including or ignoring the effects of emigration changed the significance of selection estimates in 5 of the 12 intervals, and changed the estimated direction of selection in 4 of the 12 intervals. These results indicate the extent to which inferences about selection in a natural system can be biased by failing to account for trait-dependent emigration. ?? 2005 Benjamin H. Letcher.

  12. Environmental Histories and Emerging Fisheries Management of the Upper Zambezi River Floodplains

    Directory of Open Access Journals (Sweden)

    Abbott James

    2009-01-01

    Full Text Available In response to a widespread decline in fisheries, scientists and policy makers have constructed models outlining the biological and social drivers that cause changes in fishing intensity and methods identified with overfishing. The models also address the consequences of overfishing, namely changes in biomass, trophic structure and ecosystem resilience, as well as increased poverty and vulnerability of the fishers, particularly in the developing world. While these models have emerged from marine and coastal fisheries, they have also been used to identify overfishing in floodplain fisheries and to guide management recommendations. In this article, we critique the assumptions of a global overfishing narrative describing the serial depletion of fish species, increased fishing effort and fisher dependence, which are considered valid by various stakeholders in the floodplain fisheries of the Upper Zambezi River. We find that researchers highlight how the inherent variability of the floodplain environment defies the simple diagnoses of overfishing, based on changes in effort and methods or livelihood. However, the views of policy makers and local users on the ′problem of overfishing′ are that the fish biomass is declining and intensive fishing methods are to blame, which largely resonate with the narrative. We consider how differing emphasis on parts of the narrative by stakeholders has implications for management, and what such differences tell us about the malleability of narratives.

  13. Multifunctional floodplain management and biodiversity effects

    NARCIS (Netherlands)

    Schindler, Stefan; O’Neill, Fionnuala H.; Biró, Marianna; Damm, Christian; Gasso, Viktor; Kanka, Robert; Sluis, van der Theo; Krug, Andreas; Lauwaars, Sophie G.; Sebesvari, Zita; Pusch, Martin; Baranovsky, Boris; Ehlert, Thomas; Neukirchen, Bernd; Martin, James R.; Euller, Katrin; Mauerhofer, Volker; Wrbka, Thomas

    2016-01-01

    Floodplain ecosystems are biodiversity hotspots and supply multiple ecosystem services. At the same time they are often prone to human pressures that increasingly impact their intactness. Multifunctional floodplain management can be defined as a management approach aimed at a balanced supply of m

  14. 40 CFR 258.11 - Floodplains.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Floodplains. 258.11 Section 258.11 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SOLID WASTES CRITERIA FOR MUNICIPAL SOLID WASTE LANDFILLS Location Restrictions § 258.11 Floodplains. (a) Owners or operators of new...

  15. 40 CFR 257.8 - Floodplains.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Floodplains. 257.8 Section 257.8 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SOLID WASTES CRITERIA FOR... Location Restrictions § 257.8 Floodplains. (a) Owners or operators of new units, existing units,...

  16. 7 CFR 624.10 - Floodplain easements.

    Science.gov (United States)

    2010-01-01

    ... 10 years; or (ii) Other lands within the floodplain would contribute to the restoration of the flood... 7 Agriculture 6 2010-01-01 2010-01-01 false Floodplain easements. 624.10 Section 624.10 Agriculture Regulations of the Department of Agriculture (Continued) NATURAL RESOURCES CONSERVATION...

  17. Characteristics of psychological violence (mobbing in terms of emigration

    Directory of Open Access Journals (Sweden)

    Kovalchishina N.I.

    2017-04-01

    Full Text Available In the article the problem of psychological violence (mobbing in organizations, his psychological characteristics in emigration. Analyzes the types of mobbing, its negative influence on the personality, negative consequences which not only affect physical and psychological health, but also lead to physical diseases, and suicide. The author emphasizes that in conditions of exile (in Israel psychological violence is experienced more acutely and is characterized by a prolonged depressed state. One important reason for this situation is the decline of the former social status of the emigrant, being able to quickly inclusion in the new society, loss of important social ties, the need to adopt different social norms, sometimes contradicting previously established views. Against the background of such negative phenomena in humans appear aggression, desire to dominate at any cost to regain lost status. The problem of mobbing in the modern world is very important and requires a robust approach at the state level. That psychological safety is a condition for ensuring the formation and development of functional comfort, maintaining a high level of personal emotional security and social-psychological skills, optimization of reserve possibilities of the person in activities.

  18. Emigrating Beyond Earth Human Adaptation and Space Colonization

    CERN Document Server

    Smith, Cameron M

    2012-01-01

    For four million years humankind has been actively expanding geographically and in doing so has adapted to a wide variety of hostile environments. Now we are looking towards the ultimate adaptation - the colonization of space. Emigrating Beyond Earth illustrates that this is not a technocratic endeavor, but a natural continuation of human evolution; a journey not just for the engineer and rocket scientist, but for everyman. Based on the most current understanding of our universe, human adaptation and evolution, the authors explain why space colonization must be planned as an adaptation to, rather than the conquest of, space. Emigrating Beyond Earth argues that space colonization is an insurance policy for our species, and that it isn't about rockets and robots, it's about humans doing what we've been doing for four million years: finding new places and new ways to live. Applying a unique anthropological approach, the authors outline a framework for continued human space exploration and offer a glimpse of a po...

  19. Dispersal Timing: Emigration of Insects Living in Patchy Environments.

    Directory of Open Access Journals (Sweden)

    Milica Lakovic

    Full Text Available Dispersal is a life-history trait affecting dynamics and persistence of populations; it evolves under various known selective pressures. Theoretical studies on dispersal typically assume 'natal dispersal', where individuals emigrate right after birth. But emigration may also occur during a later moment within a reproductive season ('breeding dispersal'. For example, some female butterflies first deposit eggs in their natal patch before migrating to other site(s to continue egg-laying there. How breeding compared to natal dispersal influences the evolution of dispersal has not been explored. To close this gap we used an individual-based simulation approach to analyze (i the evolution of timing of breeding dispersal in annual organisms, (ii its influence on dispersal (compared to natal dispersal. Furthermore, we tested (iii its performance in direct evolutionary contest with individuals following a natal dispersal strategy. Our results show that evolution should typically result in lower dispersal under breeding dispersal, especially when costs of dispersal are low and population size is small. By distributing offspring evenly across two patches, breeding dispersal allows reducing direct sibling competition in the next generation whereas natal dispersal can only reduce trans-generational kin competition by producing highly dispersive offspring in each generation. The added benefit of breeding dispersal is most prominent in patches with small population sizes. Finally, the evolutionary contests show that a breeding dispersal strategy would universally out-compete natal dispersal.

  20. Assembléia de peixes em áreas litorâneas da planície de inundação do alto rio Paraná, Brasil Fish assemblages in littoral areas of the upper Paraná river floodplain, Brazil

    Directory of Open Access Journals (Sweden)

    Evanilde Benedito Cecilio

    2001-05-01

    Full Text Available A assembléia de peixes em áreas litorâneas de rios (Baía e Paraná e lagoas (Figueira, Genipapo e Pousada da planície de inundação do alto rio Paraná foi avaliada quanto à composição, estrutura em comprimento, abundância e padrões de dominância e diversidade de espécies. As amostragens foram realizadas em março de 1999, com o uso de redes de arrastes simples (rios e triplos (lagoas de 5mm de malha, resultando na captura de 10.517 indivíduos pertencentes a 51 espécies. Houve diferenças significativas entre as médias de comprimento-padrão das assembléias nos diferentes ambientes. Na lagoa Pousada registrou-se a maior densidade em número de peixes, bem como o maior valor de diversidade α, enquanto na lagoa Figueira verificou-se a maior biomassa por unidade de área. As espécies mais abundantes nesses ambientes foram Cheirodon notomelas (Eigenmann, 1915 (Baía e Figueira, Bryconamericus stramineus Eigenmann, 1908 (Paraná, Steindachnerina insculpta (Fernándes-Yépez, 1948 (Genipapo e Moenkhausia intermédia Eigenmann, 1908 (Pousada. As zonas litorâneas das lagoas apresentaram baixas similaridades entre si, o que pode estar relacionado com o padrão de conectividade dos ambientes e a forte interrupção do pulso de inundação na planície no ciclo hidrológico de 1998/1999. Esta interrupção foi provocada pelo fechamento da UHE de Porto Primavera, tornou as lagoas mais diferenciadas neste ciclo e aumentou a heterogeneidade entre elasFish assemblages in littoral areas of rivers (Baía and Paraná and lagoons (Figueira, Genipapo and Pousada on the upper Paraná river floodplain were evaluated in their composition, length structure, abundance and species dominance and diversity patterns. Samplings were carried out in March 1999, with single (for the rivers and triple (for the lagoons 5mm-mesh seine nets. Results amounted to the catch of 10,517 individuals belonging to 51 species. There were significant differences between

  1. 10 CFR 1022.11 - Floodplain or wetland determination.

    Science.gov (United States)

    2010-01-01

    ... 10 Energy 4 2010-01-01 2010-01-01 false Floodplain or wetland determination. 1022.11 Section 1022.11 Energy DEPARTMENT OF ENERGY (GENERAL PROVISIONS) COMPLIANCE WITH FLOODPLAIN AND WETLAND ENVIRONMENTAL REVIEW REQUIREMENTS Procedures for Floodplain and Wetland Reviews § 1022.11 Floodplain or...

  2. 10 CFR 1022.13 - Floodplain or wetland assessment.

    Science.gov (United States)

    2010-01-01

    ... 10 Energy 4 2010-01-01 2010-01-01 false Floodplain or wetland assessment. 1022.13 Section 1022.13 Energy DEPARTMENT OF ENERGY (GENERAL PROVISIONS) COMPLIANCE WITH FLOODPLAIN AND WETLAND ENVIRONMENTAL REVIEW REQUIREMENTS Procedures for Floodplain and Wetland Reviews § 1022.13 Floodplain or...

  3. Threat of Emigration for the Socio-Economic Development of Lithuania

    Directory of Open Access Journals (Sweden)

    Olga Ranceva

    2013-06-01

    Full Text Available The phenomenon of international migration is among the most prominent global demographic processes currently taking place and influencing both the economic and social situation worldwide. An intensive emigration is a matter of serious concern for such a small country as Lithuania. Firstly, emigration further exacerbates the current negative demographic indicators (low birth rate, high mortality rate, stagnant average lifespan, which, on the whole, leads to a decrease in the absolute number of the population. Secondly, emigration of persons of working age, leaving behind the population that lacks the capacity for work, reduces the state budget and social security budget revenues. Thirdly, departure of well-educated and competent citizens from the country results in the shrinking of the country’s intellectual potential and diminishing of possibilities of mastering and development of high technologies, innovations and modernisation of the economy. The authors of the article point out the threat posed by emigration to Lithuania’s socioeconomic development and present a comprehensive analysis of the demographic structure of the population: by sex and age, the population ageing tendency, the causes and consequences of emigration. The goal of the article is to raise the issue of emigration from Lithuania and to manifest its impact on the socio-economic development of the country. The object of the article is the extent, dynamics, structure, causes and economic effects of emigration and the problems arising for the economy in the context of emigration.

  4. The Fatal Panacea: The Emigrant Experience in the Novels of Ferreira de Castro.

    Science.gov (United States)

    Silva, John de Oliveira E

    The twin emigration sagas of Ferreira de Castro (1898-1974), "Emigrantes" (1928) and "A Selva" (1930) embody what has been described as the primary driving forces of emigration: hunger and injustice. The main protagonists of "Emigrantes" and "A Selva," Manuel and Alberto, illustrate these forces. Manuel, a middle-aged Portuguese farmer decides to…

  5. Emigration Intentions : Mere Words or True Plans? Explaining International Migration Intentions and Behavior

    NARCIS (Netherlands)

    van Dalen, H.P.; Henkens, K.

    2008-01-01

    Do people follow up on their intentions? In this paper we confront the emigration intentions formed by inhabitants of the Netherlands during the year 2004-2005 and the emigration steps they took in the subsequent two years. Three results stand out. First, it appears that intentions are good predicto

  6. Development and the Urban and Rural Geography of Mexican Emigration to the United States

    Science.gov (United States)

    Hamilton, Erin R.; Villarreal, Andres

    2011-01-01

    Past research on international migration from Mexico to the United States uses geographically-limited data and analyzes emigrant-sending communities in isolation. Theories supported by this research may not explain urban emigration, and this research does not consider connections between rural and urban Mexico. In this study we use national data…

  7. The Fatal Panacea: The Emigrant Experience in the Novels of Ferreira de Castro.

    Science.gov (United States)

    Silva, John de Oliveira E

    The twin emigration sagas of Ferreira de Castro (1898-1974), "Emigrantes" (1928) and "A Selva" (1930) embody what has been described as the primary driving forces of emigration: hunger and injustice. The main protagonists of "Emigrantes" and "A Selva," Manuel and Alberto, illustrate these forces. Manuel, a…

  8. Costa Rica as a source of emigrants: a reading from a political economy approach

    Directory of Open Access Journals (Sweden)

    Gustavo Gatica López

    2017-04-01

    Full Text Available Available data shows an increase in international migration departing from Costa Rica, mainly to the United States. Based on the data obtained from two surveys conducted with potential emigrants and families with members living abroad, this paper is aimed at understanding their reasons for emigrating. In addition, some socio-economic impacts in four suburbs with high rates of emigration are identified. From a political economy approach, the most appropriate framework to better understand these emigration cases is discussed.  Moreover, the transformation of the employment and productive matrix followed by Costa Rica during the last three decades, as well as the country’s form of insertion into the international economy are two structural factors strongly linked to the emigration of the subjects studied in this paper.

  9. Floodplain conflicts: regulation and negotiation

    Directory of Open Access Journals (Sweden)

    J. Pardoe

    2011-10-01

    Full Text Available In the continuing shift from engineered solutions towards more holistic methods of managing flood risk, spatial planning has become the primary focus of a conflict between land and water, water and people. In attempting to strike a balance between making space for water and making space for people, compromises are required. Through five case studies in the UK, this paper analyses the effectiveness of Planning Policy Statement 25 (PPS 25 and the processes of negotiation that it promotes. This assessment allows us to draw conclusions on the nature of the compromises this kind of negotiation can achieve and the implications of this for flood risk management. What emerges is that the beneficial impacts of decisions to develop floodplain areas are given a proper hearing and sensible conditions imposed, rather than arguments to prevent such development remaining unchallenged.

  10. Immigration and Emigration of Professional and Skilled Manpower During the Post-War Period. Special Study No. 1.

    Science.gov (United States)

    Parai, Louis

    The impact of immigration and emigration on Canada's stock of professional and skilled manpower was analyzed for the period 1946-1963. Although the number of immigrants is recorded by Canadian authorities there is no complete record of emigration from Canada; however, a reasonably reliable picture was obtained from emigration data of other…

  11. Application of flood index in monitoring Flood-plain ecosystems (by the example of the Middle Ob flood-plain)

    OpenAIRE

    Bolotnov, V. P.

    2007-01-01

    The concept of regional hydroecological monitoring has been developed for the flood-plain of the Middle Ob. Its object is to control the state of flood-plain ecosystem productivity for organization of scientific, regional-adopted and ecologically regulated nature management. For this purpose hydroecological zoning of flood-plain territory performed, the most representative stations of water-gauge observations for each flood-plain zone organized, the scheme of flood-plain flooding was prepared...

  12. Fatores que influenciam a comunidade de peixes em dois ambientes no baixo Rio das Mortes, Planície do Bananal, Mato Grosso, Brasil Factors influencing the fish community in two environments in the lower Rio das Mortes, Bananal floodplain, Mato Grosso, Brazil

    Directory of Open Access Journals (Sweden)

    Eliete F. da Silva

    2007-06-01

    Full Text Available A caracterização limnológica e da ictiofauna em uma enseada e no canal principal do Rio das Mortes na sua região de planície de inundação foi feita com o intuito de comparar estes ambientes e indicar os possíveis fatores ambientais que influenciam as comunidades de peixes em cada um deles. Foi observada uma diferença significativa entre enseada e canal do rio em relação às variáveis transparência da água, que se apresentou maior na enseada, e velocidade da água, maior no canal. A diversidade de espécies também foi diferente entre os ambientes, com um valor significativamente maior na enseada. Nas duas localidades os maiores valores de riqueza e diversidade de espécies ocorreram durante o período de seca e os de densidade relativa (CPUE durante a enchente. Em relação à abundância os ambientes foram mais semelhantes durante os períodos de cheia, quando também foi observada uma similaridade maior entre eles em relação às variáveis limnológicas. Isso ocorre devido à homogeneização da água e da estrutura dos hábitats em função da inundação. Os resultados indicam que o pulso de inundação, associado à velocidade da água, foi a principal força que influenciou a estrutura da ictiofauna nos ambientes amostrados.The characterization of the limnological variables and of the fish fauna of a open lake and of the main channel in the Rio das Mortes floodplain was conducted in order to compare these environments and indicate the influencing environmental factors of the fish communities in each one of them. A significative difference was observed between the open lake and the river channel in relation to the water transparency, higher in the open lake, and water velocity, higher in the river channel. Species diversity was also different between the sites, with significantly higher value in the open lake. In both envitonments the highest richness and diversity values were obtained during the low water period, and the

  13. Floodplain Mapping Submission for Williamsburg County, SC

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  14. FLOODPLAIN, KING GEORGE COUNTY, VIRGINIA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  15. Floodplain Mapping Submission for Rock County, Wisconsin

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  16. Floodplain Mapping Submission for Dodge County WI

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  17. FLOODPLAIN REDELINEATION SUBMISSION FOR EMMONAK AK

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  18. FLOODPLAIN, McCracken COUNTY, KENTUCKY USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  19. FLOODPLAIN MAPPING SUBMISSION, SULLIVAN COUNTY, NEW YORK

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  20. Floodplain Mapping for Marion County, SC

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  1. FLOODPLAIN, CHARLTON COUNTY, GA AND INCORPORATED AREAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — he Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  2. FLOODPLAIN, KNOX COUNTY (AND INCORPORATED AREAS)

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  3. FLOODPLAIN, POINTE COUPEE PARISH (AND INCORPORATED AREAS)

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  4. FLOODPLAIN, ST. JOHNS COUNTY (AND INCORPORATED AREAS)

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  5. Floodplain Mapping for Fayette County, Alabama

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  6. Floodplain Mapping for Greenup County, KY

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — he Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  7. Floodplain Mapping for Jackson County, Florida

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  8. FLOODPLAIN, COLQUITT COUNTY, GA AND INCORPORATED AREAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — he Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  9. Floodplain Mapping Submission for Orangeburg County, SC

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  10. FLOODPLAIN, CONTRA COSTA COUNTY, CA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  11. Floodplain Mapping Submission for Oregon County, MO

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping study deliverables depict and quantify the flood risks for Oregon County, MO. The City of Thayer and the Missouri State Emergency Management...

  12. Floodplain Mapping for Holmes County, Florida

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  13. Floodplain Mapping for ABBEVILLE County, SC

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  14. Floodplain Mapping for Dickson County, TN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — he Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  15. Floodplain Mapping for CHESTERFIELD County, SC

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  16. Floodplain Mapping for Crockett County, TN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  17. FLOODPLAIN, UNION COUNTY, TENNESSEE and INCORPORATED AREAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  18. Floodplain Mapping for Sequatchie County, TN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — he Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  19. Floodplain Mapping Submission for Curry County, Oregon

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the 1-percent annual...

  20. Floodplain Mapping for Madison County, TN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  1. Floodplain Submission for CLARKE County, MS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  2. FLOODPLAIN, McLean COUNTY, KENTUCKY USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  3. FLOODPLAIN REDELINEATION SUBMISSION FOR HOONAH, AK

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  4. FLOODPLAIN REDELINEATION SUBMISSION FOR BETHEL AK

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  5. Floodplain Mapping for Florence County, SC

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  6. FLOODPLAIN, MARTIN COUNTY (AND INCORPORATED AREAS)

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  7. FLOODPLAIN, Crisp COUNTY, TENNESSEE and INCORPORATED AREAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  8. Floodplain Mapping, Weber County, Utah, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  9. Floodplain Mapping Submission for SMITH County MS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  10. FLOODPLAIN, LEWIS AND CLARK COUNTY, MONTANA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  11. Floodplain Mapping for Magoffin County, KY

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — he Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  12. FLOODPLAIN, SPALDING COUNTY, GEORGIA and INCORPORATED AREAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  13. Floodplain Mapping Submission for Dunn County, Wisconsin

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  14. Floodplain Mapping Submission for Lancaster County NE

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  15. FLOODPLAIN MAPPING FOR CITY OF DALLAS TX

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  16. Floodplain Mapping for Sumner County, TN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  17. Floodplain Mapping for Citrus County, Florida

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  18. Floodplain Mapping for Burlington County New Jersey

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  19. Preliminary FLOODPLAIN, Niagara County, New York, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  20. FLOODPLAIN, DARKE COUNTY, OHIO, AND INCORPORATED AREAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  1. Floodplain Mapping Submission for Desoto County MS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  2. FLOODPLAIN, HOUSTON COUNTY (AND INCORPORATED AREAS)

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  3. FLOODPLAIN, MOREHOUSE PARISH (AND INCORPORATED AREAS)

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  4. FLOODPLAIN, RICHLAND PARISH (AND INCORPORATED AREAS)

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  5. FLOODPLAIN, VERNON PARISH (AND INCORPORATED AREAS)

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  6. FLOODPLAIN, City of Petersburg, VIRGINIA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  7. Floodplain Mapping for Cheatham County, TN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — he Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  8. Floodplain Mapping for Benton County, TN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  9. FLOODPLAIN, SILVER BOW COUNTY, MONTANA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  10. FLOODPLAIN, DOOLY COUNTY, GEORGIA and INCORPORATED AREAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  11. Floodplain Submission for Tallahatchie County, MS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  12. FLOODPLAIN, LEE COUNTY, GEORGIA and INCORPORATED AREAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  13. Floodplain Mapping Submission for LAWRENCE County MS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  14. Floodplain Mapping Submission for Warren County MS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  15. Floodplain Submission for Quitman County, MS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  16. Floodplain Submission for Grenada County MS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  17. FLOODPLAIN, LAMAR COUNTY AND INCORPORATED AREAS, ALABAMA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  18. FLOODPLAIN, DES MOINES COUNTY, IOWA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  19. FLOODPLAIN, PIERCE COUNTY, GA AND INCORPORATED AREAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  20. FLOODPLAIN, PIERCE COUNTY, WISCONSIN, AND INCORPORATED AREAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  1. FLOODPLAIN REDELINEATION SUBMISSION FOR FORT YUKON AK

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  2. FLOODPLAIN, SANTA CRUZ COUNTY, ARIZONA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  3. FLOODPLAIN, City of Hopewell, VIRGINIA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  4. FLOODPLAIN, ST. CLAIR COUNTY, ALABAMA USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  5. Floodplain Mapping Submission for Floyd County, Georgia

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  6. Floodplain Mapping Submission for Oceana County, MI

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  7. Floodplain Mapping for NEWBERRY County, SC

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  8. FLOODPLAIN MAPPING FOR HOPKINS COUNTY TX

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  9. Floodplain Mapping for Boyd County, KY

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — he Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  10. Floodplain Mapping for Bernalillo County, NM

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  11. Preliminary FLOODPLAIN, Monmouth County, New Jersey, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  12. Floodplain Submission for Perry County, MS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  13. Floodplain Mapping Submission for Osage County, KS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  14. Floodplain Mapping Submission for Chisago County, Minnesota

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  15. FLOODPLAIN, THOMAS COUNTY, GEORGIA and INCORPORATED AREAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  16. FLOODPLAIN, BRANTLEY COUNTY, GA AND INCORPORATED AREAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — he Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  17. FLOODPLAIN, Monongalia COUNTY, WEST VIRGINIA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  18. FLOODPLAIN, AUGUSTA COUNTY, USA AND INCORPORATED AREAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  19. Floodplain Mapping Submission for Douglas Minnesota

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  20. Floodplain Mapping, Harmon County, Oklahoma, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  1. Floodplain Mapping Submission for Cheboygan County, Michigan

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  2. FLOODPLAIN, VOLUSIA COUNTY (AND INCORPORATED AREAS)

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  3. FLOODPLAIN, PENDLETON COUNTY, WEST VIRGINIA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  4. FLOODPLAIN, BROWN COUNTY, SOUTH DAKOTA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  5. Floodplain Mapping for MEIGS County, TN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  6. FLOODPLAIN, Braxton COUNTY, WEST VIRGINIA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  7. FLOODPLAIN, Doddridge COUNTY, WEST VIRGINIA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  8. FLOODPLAIN, Nicholas COUNTY, WEST VIRGINIA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  9. FLOODPLAIN, Calhoun COUNTY, WEST VIRGINIA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  10. Floodplain Mapping Submission, LAKE COUNTY, FLORIDA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  11. Floodplain Submission for Monroe County MS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  12. Floodplain Submission for Perry County, MS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  13. FLOODPLAIN MAPPING FOR UPSHUR COUNTY TX

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  14. Floodplain Submission for Lee County, MS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  15. Floodplain Mapping for Tuscaloosa County, AL

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — he Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  16. FLOODPLAIN, DOUGHERTY COUNTY, GEORGIA and INCORPORATED AREAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  17. FLOODPLAIN, TYLER COUNTY, WEST VIRGINIA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  18. Floodplain Mapping Submission for Vernon County, Wisconsin

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  19. FLOODPLAIN, HANCOCK COUNTY, OHIO, AND INCORPORATED AREAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  20. FLOODPLAIN, SUMTER COUNTY, GEORGIA and INCORPORATED AREAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...