Genetic connectivity among swarming sites in the wide ranging and recently declining little brown bat (Myotis lucifugus)

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dc.creator Burns, Lynne E.
dc.creator Frasier, Timothy, 1976-
dc.creator Broders, Hugh G. (Hugh Gerard), 1972- 2018-03-13T13:39:11Z 2018-03-13T13:39:11Z 2014-11
dc.identifier.issn 2045-7758
dc.description Publisher's Version/PDF
dc.description.abstract <p>Characterizing movement dynamics and spatial aspects of gene flow within a species permits inference on population structuring. As patterns of structuring are products of historical and current demographics and gene flow, assessment of structure through time can yield an understanding of evolutionary dynamics acting on populations that are necessary to inform management. Recent dramatic population declines in hibernating bats in eastern North America from white-nose syndrome have prompted the need for information on movement dynamics for multiple bat species. We characterized population genetic structure of the little brown bat, <em>Myotis lucifugus</em>, at swarming sites in southeastern Canada using 9 nuclear microsatellites and a 292-bp region of the mitochondrial genome. Analyses of F<sub>ST</sub>, &Phi;<sub>ST</sub>, and Bayesian clustering (STRUCTURE) found weak levels of genetic structure among swarming sites for the nuclear and mitochondrial genome (Global F<sub>ST</sub> = 0.001, P &lt; 0.05, Global &Phi;<sub>ST</sub> = 0.045, P &lt; 0.01, STRUCTURE K = 1) suggesting high contemporary gene flow. Hierarchical AMOVA also suggests little structuring at a regional (provincial) level. Metrics of nuclear genetic structure were not found to differ between males and females suggesting weak asymmetries in gene flow between the sexes. However, a greater degree of mitochondrial structuring does support male-biased dispersal long term. Demographic analyses were consistent with past population growth and suggest a population expansion occurred from approximately 1250 to 12,500 BP, following Pleistocene deglaciation in the region. Our study suggests high gene flow and thus a high degree of connectivity among bats that visit swarming sites whereby mainland areas of the region may be best considered as one large gene pool for management and conservation.</p>
dc.language.iso en en_CA
dc.publisher Wiley en_CA
dc.rights Creative Commons Attribution License 3.0
dc.subject.lcsh Swarming (Zoology) -- Canada
dc.subject.lcsh Little brown bat -- Canada
dc.subject.lcsh Gene flow -- Canada
dc.subject.lcsh Animal population genetics -- Canada
dc.title Genetic connectivity among swarming sites in the wide ranging and recently declining little brown bat (Myotis lucifugus) en_CA
dc.type Text en_CA
dcterms.bibliographicCitation Ecology and Evolution 4(21), 4130-4149. (2014), doi: 10.1002/ece3.1266 en_CA

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