Lecture 13 - Sexual Selection
recorded by: Yale University
published: April 17, 2010, recorded: February 2009, views: 4691
released under terms of: Creative Commons Attribution No Derivatives (CC-BY-ND)
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Description
Sexual selection is a component of natural selection in which mating success is traded for survival. Natural selection is not necessarily survival of the fittest, but reproduction of the fittest. Sexual dimorphism is a product of sexual selection. In intersexual selection, a sex chooses a mate. In intrasexual selection, individuals of one sex compete among themselves for access to mates. Often honest, costly signals are used to help the sex that chooses make decisions.
Reading assignment:
Stearns, Stephen C. and Rolf Hoekstra. Evolution: An Introduction, chapter 11
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