Fig. 1.

Mountain hare winter coat color morphs, sampling, and evolutionary relationships among populations. (A) Winter-white morph (specimen NRM588859, Swedish Museum of Natural History [NRM]). (B) Winter-gray morph (NRM588861, NRM). Pictures reproduced with permission of NRM. (C) Distribution of the mountain hare in Europe (gray area) and approximate sampling localities of individuals used in whole-genome analyses (SI Appendix, Table S1): ALP, the Alps (n = 20); FAR, the Faroe Islands (n = 20); FSC, Fennoscandia (n = 19). The red dot indicates the region of origin of the hares translocated to the Faroe Islands. (D) Population tree based on allele frequencies, with bootstrap supports. (E) Parameter estimates for the demographic history of Faroese hares: N, effective population sizes (number of diploid individuals) of the Fennoscandian (FSC), Faroese (FAR), and founder (F) populations; T_i, time of the introduction (years; assuming 2 y per generation); g, growth rate (negative value backward-in-time implies expansion forward-in-time) according to N_F = N_FAR e^gTi; mode of estimated parameters is shown and 95% HPD intervals are in parentheses (SI Appendix, Table S4).