The social environment affects mate guarding behavior in Japanese beetles, Popillia japonica
The effect of the social environment on post-copulatory mate guarding duration in Japanese beetles, (Popillia japonica Newman), was examined in a laboratory experiment. The mate guarding durations of beetles in different sex ratios and densities were observed for 10 hours. Guarding duration was long...
Phenoloxidase (PO) production can be used as an indicator of pathogen defence in insects. The geographical mosaic of coevolution implies that traits associated with pathogen defence will vary across a geographical range. Bateman's principle implies that the benefit of increased defence levels is gre...