Biology 1201A Lecture Notes - Lecture 14: Parental Investment, Dynastinae, Sperm Competition
25 Nov 2016
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Sexual selection: the evolution of sex, sexual selection. Why sex? disadvantages to sexual reproduction: potential for inheritance of bad alleles and phenotypes from one or the other parent, potential for sexual transmitted disease and infections, time consuming ( nd a mate and copulate) What if you have high tness? you"d want to pass on what you have to your offspring but you have to rely on an other advantages of sexual reproduction. Males* monopolize access to females (can be females monopolizing males: male has a direct control of females, control of a resource important to females: indirect control by having access to a resource a female nds important. Methods of monopolization: combat causes ex. rhino beetle, sperm competition through. Inter-sexual selection females* choose mates based on displays" , not like nonrandom mating , not everyone successfully reproduces because someone of them don"t get chosen.
