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dc.contributor.author Dohms, Kimberly M.
dc.contributor.author Burg, Theresa M.
dc.date.accessioned 2016-04-04T17:48:13Z
dc.date.available 2016-04-04T17:48:13Z
dc.date.issued 2013
dc.identifier.citation Dohms, K. M., & Burg, T. M. (2013). Molecular markers reveal limited population genetic structure in a North American corvid, Clark's nutcracker (Nucifraga columbiana). PLoS ONE, 8(11), e79621. doi:10.1371/journal.pone.0079621 en_US
dc.identifier.uri http://hdl.handle.net/10133/4453
dc.description Sherpa romeo green journal en_US
dc.description.abstract The genetic impact of barriers and Pleistocene glaciations on high latitude resident species has not been widely investigated. The Clark’s nutcracker is an endemic North American corvid closely associated with Pinus-dominated forests. The nutcracker’s encompasses known barriers to dispersal for other species, and glaciated and unglaciated areas. Clark’s nutcrackers also irruptively disperse long distances in search of pine seed crops, creating the potential for gene flow among populations. Using the highly variable mitochondrial DNA control region, seven microsatellite loci, and species distribution modeling, we examined the effects of glaciations and dispersal barriers on population genetic patterns and population structure of nutcrackers. We sequenced 900 bp of mitochondrial control region for 169 individuals from 15 populations and analysed seven polymorphic microsatellite loci for 13 populations across the Clark’s nutcracker range. We used species distribution modeling and a range of phylogeographic analyses to examine evolutionary history. Clark’s nutcracker populations are not highly differentiated throughout their range, suggesting high levels of gene flow among populations, though we did find some evidence of isolation by distance and peripheral isolation. Our analyses suggested expansion from a single refugium after the last glacial maximum, but patterns of genetic diversity and paleodistribution modeling of suitable habitat were inconclusive as to the location of this refugium. Potential barriers to dispersal (e.g. mountain ranges) do not appear to restrict gene flow in Clark’s nutcracker, and postglacial expansion likely occurred quickly from a single refugium located south of the ice sheets. en_US
dc.language.iso en_CA en_US
dc.publisher Public Library of Science en_US
dc.subject Clark's nutcracker en_US
dc.subject Population genetics en_US
dc.subject Birds -- Dispersal en_US
dc.subject Phylogeography en_US
dc.subject Biogeography en_US
dc.title Molecular markers reveal limited population genetic structure in a North American corvid, Clark's nutcracker (Nucifraga columbiana) en_US
dc.type Article en_US
dc.publisher.faculty Arts and Science en_US
dc.publisher.department Department of Biological Sciences en_US
dc.description.peer-review Yes en_US
dc.publisher.institution University of Lethbridge en_US


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