BIO220H1 Lecture 16: Social Behaviour
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BIO220H1 Full Course Notes
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Social behaviour definition: the interaction with and responses to other individuals of the same species. Altruistic: behaviour increases another individual"s success at a cost to one"s own reproductive success. Cooperative: behaviour that, if adopted by two (or more) individuals, benefits both. Some pay-off schedule for playing: a against b, for all a and b. Interaction between 2 individuals fighting over some resource. Two strategies that can be used: hawk: fight aggressively, dove: resolve contest peacefully. Depends on the ratio of r and c; what you should do depends on what your opponent is doing. Give multiple encounters, perhaps it does not pay to be selfish. Can examine this possibility using iterated prisoner"s dilemma. Best strategy is tit for tat : cooperate on the first encounter, copy your opponent"s last move thereafter. Elements of the tit for tat strategy. Forgiving if partner has cheater in past, but changes , then cooperate.
