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Burg, Theresa M. Graham, Brendan A. University of Lethbridge. Faculty of Arts and Science 2012-02-23T21:52:19Z 2012-02-23T21:52:19Z 2011 https://hdl.handle.net/10133/2612 xii, 117 leaves ; 29 cm 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. en_US Lethbridge, Alta. : University of Lethbridge, Dept. of Biological Sciences, c2011 Arts and Science Department of Biological Sciences Thesis (University of Lethbridge. Faculty of Arts and Science) Hairy woodpecker Hairy woodpecker -- Geographical distribution Hairy woodpecker -- Genetics Hairy woodpecker -- Variation Hairy woodpecker -- Pylogeny -- Molecular aspects Dissertations, Academic The population genetics and phylogeography of the hairy woodpecker (Picoides villosus) / Brendan A. Graham Thesis Masters open.access