E&EB 122 - Lecture 11 - Life History Evolution

Lecture 11 - Life History Evolution

Overview

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.

Resources

You may view the Yale Galapagos site at: http://cmi2.yale.edu/galapagos_public

Assignment

Stearns, Stephen C. and Rolf Hoekstra. Evolution: An Introduction, chapter 10

Course Media

Transcript

html

Audio

mp3

Low Bandwidth Video

mov [100MB]

High Bandwidth Video

mov [500MB]