The population genetics and phylogeography of the hairy woodpecker (Picoides villosus) / Brendan A. Graham
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Date
2011
Authors
Graham, Brendan A.
University of Lethbridge. Faculty of Arts and Science
Journal Title
Journal ISSN
Volume Title
Publisher
Lethbridge, Alta. : University of Lethbridge, Dept. of Biological Sciences, c2011
Abstract
This thesis examines the effects that Pleistocene glaciation had on the
population structure and contemporary genetic patterns of the hairy woodpecker
(Picoides villosus). A combination of molecular markers, revealed reduced levels of
gene flow among groups of hairy woodpeckers. Microsatellite analyses suggest
barriers to gene flow have influenced contemporary population structure, with
higher structure found in western North America where barriers to gene flow are
more prevalent. MtDNA analyses revealed three distinct genetic lineages, two in
North America and a third in Central America. Results indicate these lineages
separated prior to the Wisconsin glaciation (~100 kya) and that contemporary
population structure is the result of post-glacial expansion from multiple refugia
following deglaciation. Current taxonomy recognizes 17 subspecies (Jackson et al.,
2002), but molecular analyses in this study do not support current subspecies
designations.
Description
xii, 117 leaves ; 29 cm
Keywords
Hairy woodpecker , Hairy woodpecker -- Geographical distribution , Hairy woodpecker -- Genetics , Hairy woodpecker -- Variation , Hairy woodpecker -- Pylogeny -- Molecular aspects , Dissertations, Academic