Fig. 7

Pairwise F _ST values between each samples obtained from one site that is part of a cluster (c.f. Fig. 1b) and all samples from all sites from another cluster and estimated these values in a pairwise manner for the three clusters. The white column presents the population with the lowest average F _ST within the corresponding cluster, which is considered the likely starting or arrival site of Brandt’s vole. Population abbreviations as in Fig. 1b (ns: P > 0.05, *: P < 0.05, **: P < 0.01)