Fig. 1: Map of the study site at the Mapimí Biosphere Reserve (MBR), Mexico for the Nelson’s pocket mouse.

Sampling localities and spatial distribution of Chaetodipus nelsoni. Sampled individuals are indicated with blue dots and projected on a grayscale satellite picture of the study site (Rancho San Ignacio property). The darker grey depicts the San Ignacio Hill of the MBR. Photograph credit: Juan Cruzado (inaturalistaMX).