Biology 3436F/G Lecture Notes - Lecture 6: Inclusive Fitness, Kin Recognition, Disruptive Selection

• School: Western University
• Department: Biology
• Course: Biology 3436F/G
• Professor: Graham Thompson

Document Summary

Elfish ge(cid:374)e is(cid:374)"t the sa(cid:373)e thi(cid:374)g as selfish(cid:374)ess. Easy to see how it explains selfishness. Trees are tall cause they need to outcompete the trees beside them. Moose need to have huge antlers to fight others to get the women. If (cid:455)ou (cid:272)ould fi(cid:374)d a(cid:374) e(cid:454)a(cid:373)ple of alt(cid:396)uis(cid:373), it (cid:449)ould (cid:396)ui(cid:374) da(cid:396)(cid:449)i(cid:374)"s theo(cid:396)(cid:455) (he said its insuperable difficulty) Neutral present but under selection may eventually fix or go extinct but not under selection. If costly then this will go extinct, so if altruism exist then how does it evolve. Back then we did not know about indirect fitness, we only knew about direct if costly trait to direct fitness, it cannot evolve, if you use classic darwinism you (cid:272)a(cid:374)"t explain how altruism evolved. High fidelity only invest in descendent kin, but if some are sloppy they look after their own kids and other people kids.