Sample records for FONDO TERRESTRE (terrestrial background)

Sample records 1 - 7 shown.


Primer hallazgo de vectores de la enfermedad de Chagas asociados a matorrales silvestres en la Región Metropolitana, Chile/ First finding of Chagas disease vectors associated with wild bushes in the Metropolitan Region of Chile

Bacigalupo B, Antonella; Segura M, José A; García C, Alejandro; Hidalgo C, Javier; Galuppo G, Stephania; Cattan, Pedro E

Resumen en inglés Background: Insects of the subfamily triatominae are the biological vectors of Trypanosoma cruzi, the causal agent of Chagas disease. Aim: To search for wild colonies of triatomines in the Metropolitan Region of Chile. Material and Methods: Ad hoc traps were placed in two endemic zones of the Metropolitan Region of Chile, during 30 nights. The dejections of 16 T infestans and 43 M spinolai specimens were examined under the microscope, searching for live metacyclic trypoma (mas) stigotes. A polymerase chain reaction (PCR) was performed in macerates of all insects looking for T cruzi DNA. Results: A total of 269 bugs were captured. Forty four were Triatoma infestans and 225 were Mepraia spinolai. They were not syntopic, since T infestans was restricted to a Southern zone (Calera de Tango) while M spinolai was only found in the Northern zone (Til-Til). Both species were found associated to terrestrial bromeliads (Puya sp) but M spinolai was also detected in stony grounds. Microscopic examination of dejections yielded a trypano-triatomine index of 56.3 and 32.6 for T infestans and M spinolai, respectively. PCR detected T cruzi DNA in 41 and 43% of T infestans and M spinolai specimens, respectively. Conclusions: The finding of T infestans in a wild habitat is noticeable. This is the first report of such phenomenon in Chile. The high infection rates with T cruzi, explains the maintenance of Chagas disease wild cycle in Chile

Scientific Electronic Library Online (Spanish)


Morphological Evolution of Spiders Predicted by Pendulum Mechanics

Moya-Laraño, Jordi; Vinković, Dejan; Mas, Eva de; Corcobado, Guadalupe; Moreno, Eulalia

Digital.CSIC (Spain)


Evaluation of organochlorine compounds (PCDDs, PCDFs, PCBs and DDTs) in two raptor species inhabiting a Mediterranean island in Spain

Jiménez, Begoña; Merino, Rubén; Abad Holgado, Esteban; Rivera Aranda, Josep; Olie, Kees

Digital.CSIC (Spain)


Effect of remediation on trace metal pollution in soils of Guadiamar river valley.

Cabrera, Francisco; Clemente Salas, Luis; Cordón, Rosario; Hurtado, María Dolores; López Núñez, Rafael; Madejón, Paula; Marañón, Teodoro; Moreno Lucas, Félix; Murillo Carpio, José Manuel; Nagel, I.

Digital.CSIC (Spain)


Ancient origin of a Western Mediterranean radiation of subterranean beetles

Ribera, Ignacio; Fresneda, Javier; Bucur, Ruxandra; Izquierdo, Ana; Vogler, Alfried P.; Salgado, José M.; Cieslak, Alexandra

Digital.CSIC (Spain)