Female-female nonsexual interference competition is a major fitness determinant of biased sex-ratio groups with high female density. What strategies can females use to overcome the negative impact of
The bertha armyworm (BAW), Mamestra configurata Walker (Lepidoptera: Noctudidae), is one of the major insect pests of canola, Brassica napus L. and B. rapa L. (Brassicaceae), in western Canada. Across
Prey are under selection to minimize predation losses. In aquatic environments many prey use chemical cues released by predators, which initiate predator-avoidance. A prominent example of behavioural
Queen discrimination behavior in the fire ant Solenopsis invicta maintains its two types of societies: colonies with one (monogyne) or many (polygyne) queens, yet the underlying genetic mechanism is p
Chemical cues produced by late-stage embryos of the cane toad (Rhinella marina) attract older conspecific larvae, which are highly cannibalistic and can consume an entire clutch. To clarify the molecu
