Figure 2.

Sampling localities and genetic relationships of the modern neighboring populations of pocket gophers to the Lamar Cave population. Shaded areas illustrate the present range of six nominal subspecies of T. talpoides (light stipple), and two subspecies of T. idahoensis (dense stipple) in and around Yellowstone National Park. Numbers above lines denote the number of observed substitutions between haplotypes connected by a minimum spanning network (6) based on 63 bp of cytochrome b sequence. An alternative link is shown in parentheses. Haplotype numbers are indicated at localities where they are found (Table 1).