Biology 3466B Study Guide - Mating System, Assortative Mating, Long Tail
9 Nov 2012
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Sexual selection differential reproductive success due to variation among individuals in mating success. Predict whether traits will be subject to sexual selection. Explain why the strengths of sexual selection differ between the sexes. Contrast intrasexual and intersexual selection and their effects on mating behaviors (competition and mate choice) The strength of sexual selection differs in males than in females. Realized success is limited by number of eggs (pregnancies) Realized success is limited by # of female mates. Sexual dimorphism a difference between males and females of a species. In the sex with greater parental investment limit is time and resources. In sex with lower parental investment limit is mating success. Darwin realized that individuals vary not only in their success at surviving and reproducing but also in their success at persuading members of the opposite sex to mate. Failing to mate is the same as dying young (no genetic contribution) Males arrive at breeding ponds early and stay long.
