Biology 1001A Lecture Notes - Lecture 17: Haplogroup R1B, Inclusive Fitness, Reciprocal Altruism

• School: Western University
• Department: Biology
• Course: Biology 1001A
• Professor: Beth Mac Dougall Shackleton Tom Haffie

Document Summary

By ha(cid:448)i(cid:374)g the stro(cid:374)g fit(cid:374)ess of the relati(cid:448)e"s offspri(cid:374)g, there is a(cid:374) i(cid:374)dire(cid:272)t fit(cid:374)ess. The payoff depends on what you do and what the other relatives do as well. Ha(cid:373)ilto(cid:374)"s rule (cid:894)i(cid:374) poi(cid:374)t of (cid:448)ie(cid:449) of the helper(cid:895) Helpful behaviour increases the helper"s i(cid:374)(cid:272)lusi(cid:448)e fit(cid:374)ess if rb>c. There is an overlap in the genetic interest with the relative but never identical. Point of view of individuals receiving help, giving help, by stander (in point of view of the other families) R1= i(cid:374)di(cid:448)idual"s related(cid:374)ess to the recipient of help. B= benefit to the recipient of help. The benefit may only benefit for individuals, but the cost of danger is distributed over the whole population. No matter what your partner does, it is better off cheating than cooperating. Olution: to (cid:272)heat, (cid:271)ut o(cid:374)ly true if you"re ha(cid:448)i(cid:374)g o(cid:374)e i(cid:374)di(cid:448)idual/ last i(cid:374)tera(cid:272)tio(cid:374) (cid:449)ith. Helping non-relatives (cid:862)re(cid:272)ipro(cid:272)al altruis(cid:373)(cid:863) form of cooperation, not true altruism.