BIO318Y5 Lecture Notes - Lecture 19: Royal Jelly, Lek Mating, Bighorn Sheep
Document Summary
Review of last lecture: direct benefits of altruism: inheriting the opportunity for direct reproduction. Learn the general area or learn the ropes from other adults so that they could reproduce later on. If you can"t back it up with staying pattern, the more you"re going to be harassed by dominating queens: system: polistes paper wasps. Bridging social and sexual theory: kin selection in mating systems: a quantitative analysis of hamilton"s prediction, a unified theory of social selection. Kin selection and cooperative courtship in wild turkeys: display in 2 or more males, coalition; more muscle and power against other rivals. Coalition members are close relatives: moms and offsprings average . 5, full siblings average . 5, half siblings are kind of low about . 15, coalition average . 4, so they"re highly related, genes identical by descent by recent common ancestors. Altruism increases the fitness of the dominant male: why would subordinates do it, hamilton"s theory would explain it.
