EEB 122 - Principles of Evolution, Ecology and Behavior
Lecture 11 - Life History Evolution. Life history covers three main classes of traits in organisms: age and size at maturity, number and size of offspring, and lifespan and reproductive investment. Organisms must make tradeoffs among these traits that typically cause them to come to evolutionary equilibrium at intermediate values. Life history traits are evolutionary solutions to the ecological problems of the risk of mortality and the acquisition of food, and they are expressed in reaction norms that determine the particular traits that an organism will exhibit when its genes encounter a specific environment during development. (from oyc.yale.edu)
| Lecture 11 - Life History Evolution |
| Time | Lecture Chapters |
| [00:00:00] | 1. Introduction |
| [00:04:53] | 2. Life History and the History of Ideas |
| [00:08:56] | 3. Age and Size at Maturity |
| [00:23:38] | 4. Size and Number of Babies |
| [00:31:49] | 5. Lifespan and Aging |
| [00:42:32] | 6. Summary |
| References |
| Lecture 11 - Life History Evolution Instructor: Stephen C. Stearns. Resources: the Yale Galapagos site. Transcript [html]. Audio [mp3]. Download Video [mov]. |
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