Phylogeographic Analyses of American Black Bears (Ursus americanus) Suggest Four Glacial Refugia and Complex Patterns of Postglacial Admixture.

@article{Puckett2015PhylogeographicAO,
  title={Phylogeographic Analyses of American Black Bears (Ursus americanus) Suggest Four Glacial Refugia and Complex Patterns of Postglacial Admixture.},
  author={Emily E. Puckett and Paul D. Etter and Eric A. Johnson and Lori S Eggert},
  journal={Molecular biology and evolution},
  year={2015},
  volume={32 9},
  pages={
          2338-50
        }
}
Studies of species with continental distributions continue to identify intraspecific lineages despite continuous habitat. Lineages may form due to isolation by distance, adaptation, divergence across barriers, or genetic drift following range expansion. We investigated lineage diversification and admixture within American black bears (Ursus americanus) across their range using 22 k single nucleotide polymorphisms and mitochondrial DNA sequences. We identified three subcontinental nuclear… 
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