Chapter

Natural Selection and Microevolution

Jonathan B. Losos

in Lizards in an Evolutionary Tree

Published by University of California Press

Published in print August 2009 | ISBN: 9780520255913
Published online March 2012 | e-ISBN: 9780520943735 | DOI: http://dx.doi.org/10.1525/california/9780520255913.003.0012
Natural Selection and Microevolution

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This chapter demonstrates how natural selection leads to phenotypic divergence among populations, first reviewing the evidence regarding natural selection and microevolutionary change in anole populations. It describes how species interactions such as predation lead to habitat shifts and predictable changes in patterns of natural selection, and then considers what patterns of geographic variation may reveal about anole microevolution. The chapter concludes with a discussion of the heritability of anole traits and the significance and evolutionary role of phenotypic plasticity in anole evolution.

Keywords: natural selection; phenotypic divergence; microevolutionary change; predation; habitat shifts; microevolution; phenotypic plasticity

Chapter.  9128 words.  Illustrated.

Subjects: Evolutionary Biology

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