Most terrestrial prey species are assumed to assess predation risk by detecting predators directly rather than using cues of previous attacks on conspecifics. However, such cues might represent valuable information, and prey can be expected to respond to the presence of congeners killed by...

The production of cues that indicate the identity of the sender represents an important aspect of recognition because it may mediate kin recognition and altruism. Although kin recognition cues have often been studied in social insects, only a few studies have reported kin recognition in solitary...

When 2 species exploit the same limiting resource, interspecific competition may lead to the exclusion of one of them. For the 2 species to coexist, resource exploitation strategies exhibited by both species must somehow counterbalance each other. Eupelmus vuilleti and Dinarmus basalis are 2...

Models of dyadic contests for indivisible resources have predicted that the owner--intruder role distinction can suffice as a cue for evolutionarily stable resolution. This outcome may be "common sense" (prior owners retain the resource) or counterintuitively "paradoxical" (the intruder takes...