06-Otter-Chap06.qxd 25/9/06 9:45 AM Page 77 CHAPTER 6 Phylogeography of chestnut-backed chickadees in western North America

North American chickadees and titmice are believed to be descendents of Eurasian lineages that crossed the Bering land bridge in the late Pliocene 3.5 to 4 million years ago (Gill et al. 2005;

Bibliographic Details
Main Author: Theresa M. Burg
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Subjects:
Bering Land Bridge
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.324.292
http://classes.uleth.ca/200701/biol4500a/burg2.pdf
Description
Summary:North American chickadees and titmice are believed to be descendents of Eurasian lineages that crossed the Bering land bridge in the late Pliocene 3.5 to 4 million years ago (Gill et al. 2005;

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