Figure 1.

Location of the study area, Idaho ground squirrel (IDGS) distributions and sampling sites in the state of Idaho. A. Map of the USA with state borders represented by dark gray lines, the state of Idaho highlighted in dark gray and a black square indicating the study area detailed in B. B. Detail of the study area, where circles represent sampled populations of Northern Idaho Ground Squirrel (NIDGS, red) and Southern Idaho Ground Squirrel (SIDGS, blue). Population codes correspond to those in Table 1. Size of the circles is proportional to the number of samples (from 1 to 25 samples), where outer dashed circles represent the number of samples analyzed, and inner full circles the number of samples successfully RAD sequenced and used in genomic analyses. Locations with < 6 samples have the same circle size (see Table 1 for further details on sample numbers). Background red and blue areas represent the distribution of NIDGS and SIDGS, respectively as estimated using the “Concave Hull” tool from QGIS 3.16.1 from presence data (unpublished data, Idaho Fish and Game). The light blue line represents the Weiser River.