ANT 154B Course notes- Lecture _9

Harcourt stewart 20 08 the fact that fathers may

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Unformatted text preview: o lose other mating opportunities, infanticide) with g. Harcourt & Stewart 20 08), the fact that fathers may benefit e. gestation sired With gestation from the protective effects of paternity confusion has thus far current 0.4 been neglected in the literature, especially in relation to its effects on males’ mating effort and mate-guarding decisions. As Paternity disagreement offspring with ticide is a threat in taxa lacking constant male vigilance infan male 0.2 against it (ref relatedness erences in Agrell et al. 1998; van Schaik 20 0 0b), With MM males in these species may provide protection via paternity relatedness confusion. Danger Danger zone zone Ignoring inclusive fitness for the moment, to maximize the 0 benefit from a single offspring, a male mustmaximize the proba0.6 0.8 1 0 0.2 0.4 bility of his paternity in that offspring discounted by the probability Probability of siring next offspring that the offspring dies before reaching adulthood. Defining pj as the Probability of siring next offspr...
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