Geographic distances among study samples (in km) used in our Mantel tests:
See Fig. 1 in Roitberg et al. (2015) for geographic map and Table 1 for the phenotypic characteristics of the study samples.
The distances were calculated using the geographic coordinates. Note that for most study samples, values for the longitude and the latitude are average values for several sites from which the study animals were collected; sites which provided relatively small amount of data were not considered for computing these average values
