8. The Expression of Variation: Reaction Norms

Principles of Evolution, Ecology and Behavior (EEB 122)
Reaction norms depict the range of phenotypes a single genotype can produce, depending on the environment. Reaction norms must fit within an organism's phylogenetic constraints. They can differ for different individuals within a population, but some traits differ very little based on the environment; some do not differ at all.
00:00 - Chapter 1. Introduction
03:22 - Chapter 2. Reaction Norms
12:10 - Chapter 3. Reaction Norms in Populations
23:42 - Chapter 4. Developmental Constraints on Reaction Norms
36:23 - Chapter 5. Benefits and Limitations of Studying Reaction Norms
Complete course materials are available at the Open Yale Courses website: open.yale.edu/c...
This course was recorded in Spring 2009.