Lecture 8 - The Expression of Variation: Reaction Norms

author: Stephen C. Stearns, Department of Ecology and Evolutionary Biology, Yale University
recorded by: Yale University
published: April 17, 2010,   recorded: January 2009,   views: 2680
released under terms of: Creative Commons Attribution No Derivatives (CC-BY-ND)
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Description

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.

Reading assignment:

Stearns, Stephen C. and Rolf Hoekstra. Evolution: An Introduction, chapter 7

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