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Unformatted text preview: strategies and frequencies of other types in the population. The general approach is to look for Evolutionary Stable Strategies (ESS) = a strategy that, if adopted by all, cannot be "invaded" by a mutant strategy. Here a strategy = the behavior of an individual in a certain situation. These types of model apply nicely to ritualized behaviors , distinct display behaviors which take the place of aggressive interactions. Maynard-Smith's approach involves: H = hawk who fights until the opponent retreats or will continue fighting injured with cost C D = dove who displays but will retreat if the opponent escalates V = payoff of winning an encounter C = cost of losing an encounter These values can be put into a payoff matrix: In encounter with: H D Payoff to: H 1/2 (V-C) V D 0 V/2...
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- Fall '10