Map of Canada and the United States showing the distribution of described <i>Myotis lucifugus</i> subspecies (modified from [17]) and sampling locations.

<p>a) shows sampling locations with pie charts indicating frequencies of mtDNA subspecific clades (subspecific designations are indicated in the legend and colors follow those used in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0128713#pone.0128713.g002" target="_blank">Fig 2</a>) in each population, while b) shows groupings of populations (orange and blue dots) within which pairwise Φ_ST values based on mtDNA haplotype frequencies were low versus populations that were significantly differentiated from all other populations (purple dots; high pairwise Φ_ST values with all other sampled populations). One sampled population in Michigan (shown with a black dot in a) was not included in mtDNA analyses. Population abbreviations are detailed in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0128713#pone.0128713.t001" target="_blank">Table 1</a>, and colors in pie charts in a) correspond to clades shown in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0128713#pone.0128713.g002" target="_blank">Fig 2</a>. Data sources for the map include: nationalatlas.gov, iucnredlist.org, and ESRI Data & Maps 2006 through ArcGIS (<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0128713#pone.0128713.s002" target="_blank">S1 File</a>).