E&EB 122 - Lecture 13 - Sexual Selection
Lecture 13 - Sexual Selection
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.
Stearns, Stephen C. and Rolf Hoekstra. Evolution: An Introduction, chapter 11