The phylogeography and post-glacial expansion of the boreal chickadee (Poecile hudsonicus)

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dc.contributor.authorLait, Linda Amy
dc.contributor.authorUniversity of Lethbridge. Faculty of Arts and Science
dc.contributor.supervisorBurg, Theresa M.
dc.date.accessioned2012-04-10T16:38:06Z
dc.date.available2012-04-10T16:38:06Z
dc.date.issued2011
dc.degree.levelMasters
dc.descriptionxii, 158 leaves : ill. (some col.), maps (some col.) ; 29 cmen_US
dc.description.abstractUsing a combination of both mitochondrial DNA and microsatellites, as well as spatio-geographic modelling, this study examines how the most recent glaciations may have affected the population genetic structure of the boreal chickadee (Poecile hudsonicus), a small resident passerine of the North American boreal forests. The mtDNA data support a separation between eastern and western populations, with central populations containing a mixture of haplotypes from both the east and west. Estimated dates place the divergence during the Wisconsin (56.2-129.7 kya). Microsatellite analyses support the separation of Newfoundland from all mainland populations, indicating that the eastern straits are restricting gene flow. No evidence for reduced gene flow was found for the Rocky Mountains. The results suggest the use of multiple glacial refugia, one in Beringia and one in the east, followed by stepping-stone colonisation and secondary admixture.en_US
dc.identifier.urihttps://hdl.handle.net/10133/2634
dc.language.isoen_USen_US
dc.publisherLethbridge, Alta. : University of Lethbridge, Dept. of Biological Sciences, 2011en_US
dc.publisher.departmentDepartment of Biological Sciencesen_US
dc.publisher.facultyArts and Scienceen_US
dc.relation.ispartofseriesThesis (University of Lethbridge. Faculty of Arts and Science)en_US
dc.subjectBoreal chickadee -- Geographical distributionen_US
dc.subjectBoreal chickadee -- Geographical distribution -- Climatic factorsen_US
dc.subjectBoreal chickadee -- Geneticsen_US
dc.subjectPhylogeographyen_US
dc.subjectIsolating mechanismsen_US
dc.subjectDissertations, Academicen_US
dc.titleThe phylogeography and post-glacial expansion of the boreal chickadee (Poecile hudsonicus)en_US
dc.typeThesisen_US
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