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Lizards in an Evolutionary TreeEcology and Adaptive Radiation of Anoles$
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Jonathan Losos

Print publication date: 2009

Print ISBN-13: 9780520255913

Published to California Scholarship Online: March 2012

DOI: 10.1525/california/9780520255913.001.0001

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Phylogenetic Perspective on the Timing and Biogeography of Anole Evolution

Phylogenetic Perspective on the Timing and Biogeography of Anole Evolution

(p.99) 6 Phylogenetic Perspective on the Timing and Biogeography of Anole Evolution
Lizards in an Evolutionary Tree

Jonathan B. Losos

University of California Press

This chapter addresses questions concerning the origin and maintenance of anole biodiversity: when did anoles arise? And how did they attain their current geographic distribution? It begins by describing approaches used to date the evolutionary appearance of anoles. Fossil records of lizards provide only a minimum estimate of anole age. The alternative approach is molecular dating—to date the origin of Anolis by examining the amount of molecular divergence that has occurred between species and by correlating this divergence with rates of change through time. The chapter then examines anole phylogeny, before reconstructing the biogeographic history of anoles, and attempts to discover when anoles got to the West Indies and how they got from one island to another.

Keywords:   anole biodiversity, geographic distribution, fossil records, molecular dating, molecular divergence, anole phylogeny

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