EEB 122 - Principles of Evolution, Ecology and Behavior
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. (from oyc.yale.edu)
| Lecture 13 - Sexual Selection |
| Time | Lecture Chapters |
| [00:00:00] | 1. Introduction |
| [00:06:53] | 2. Competing and Choosing |
| [00:13:11] | 3. Competition with Sexual Dimorphism |
| [00:27:29] | 4. Honest, Costly Signaling |
| [00:35:55] | 5. Selection through Perception and Polyandry |
| [00:43:35] | 6. Summary |
| References |
| Lecture 13 - Sexual Selection Instructor: Stephen C. Stearns. Transcript [html]. Audio [mp3]. Download Video [mov]. |
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