Biology 2483A Lecture Notes - Lecture 7: Optimal Foraging Theory, Behavioral Ecology, Backcrossing

• School: Western University
• Department: Biology
• Course: Biology 2483A
• Professor: Hugh Henry

Document Summary

Why would this behaviour be adaptive: you(cid:374)g adult (cid:373)ale lio(cid:374)s are dri(cid:448)e(cid:374) fro(cid:373) the pride a(cid:374)d (cid:373)ay for(cid:373) (cid:862)(cid:271)a(cid:272)helor prides(cid:863) that hu(cid:374)t together, at 4 or 5 years, a male can challenge adult males in an established pride. I(cid:374) (cid:373)a(cid:374)y spe(cid:272)ies, fe(cid:373)ales are (cid:373)ore (cid:862)(cid:272)hoosy(cid:863) tha(cid:374) (cid:373)ales i(cid:374) (cid:373)ate sele(cid:272)tio(cid:374), (cid:271)ut i(cid:374) so(cid:373)e spe(cid:272)ies females try to mate with as many males as possible. Most aspects of animal behaviour are controlled by both genes and environmental conditions. Food availability can vary greatly over time and space. The longer the travel time between food patches, the longer an animal should spend in a patch. For birds in the lab, a (cid:862)forest(cid:863) of wooden dowels contained food (cid:862)patches(cid:863) of plastic cups containing mealworms. (cid:862)travel time(cid:863) was manipulated by covering food cups, and adjusting ease of mealworm removal. Song sparrows exposed to recordings of predators fed their young fewer times per hour than did sparrows that heard recordings of nonpredators (zanette et al.