BIOL-4700 Lecture Notes - Lecture 7: Estrous Cycle, Distant Relatives, Haplodiploidy
14 Mar 2017
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How does this mechanism lead to nest parasitism: how do animals recognize kin, cannibalism is clearly a selfish behavior, so why is it considered to be altruistic in toads, frogs, and salamanders? (consequence to recipient) 2 questions to ponder: if alarm calls increase risk of predation, why perform this act of altruism, why do female ground squirrels give many more alarm calls than males do, inclusive fitness. Individual i individual i + individual j x of i to j ai. X rij (direct fitness) + (indirect fitness) wi ai bj rij. = effect of i"s behavior on i"s fitness. = effect of i"s behavior on the fitness of relative j. W12 = a11 - c + r b. C = cost to actor b = benefit to relative r = relatedness. W12 > w11 when r b c > 0 or when r b > c.
