Fig. 1From: Genome-wide markers reveal a complex evolutionary history involving divergence and introgression in the Abert’s squirrel (Sciurus aberti) species groupS. aberti approximate collecting locations with samples sizes given in parentheses. The distribution of ponderosa pine (or closely related species in Mexico) is shaded in green. MT = Mount Taylor; SFW = Santa Fe West; E = East; AZ = Arizona; NM = New Mexico; CO = ColoradoBack to article page