LIFESCI 2D03 Chapter Notes - Chapter 4-7,11: Classical Conditioning, Volatile Organic Compound, Bright Leaves
20 Dec 2016
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Document Summary
Sexual selection: a form of natural selection that acts on heritable traits that affect reproduction via mate competition and mate choice. Mate competition: selection in which one sex competes with members of the same sex for access to the other sex for reproduction. Mate choice: selection by one sex for members of the other sex for reproduction. Anisogamy: when the gametes are different from one another. Bateman"s hypothesis: female reproductive success is most strongly limited by the number and success of eggs she can produce, while male reproductive success is limited by the number of mates he produces. Parental investment theory: the sex that pays the higher cost of parental investment should be choosier in selecting mates. The other sex will experience more intense sexual selection. Sensory bias hypothesis: the hypothesis that female mating preferences are a byproduct of preexisting biases in a female"s sensory system.
