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Thomomys umbrinus

Southern Pocket Gopher

Order: Rodentia
Family: Geomyidae

Image of Thomomys umbrinus
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Conservation Status: Least Concern.


Because most Southern Pocket Gophers live at high elevations in the mountains of Mexico, they are less accessible, and have been less-studied, than some other species. Like all pocket gophers, they are vegetarians, consuming both aboveground and underground parts of plants. Southern Pocket Gophers are active all year long and appear to have no set pattern of daily activity, excavating tunnels at any hour of the day. The average life span is probably 2-3 years. Most young are probably picked off by predators, which include hawks, owls, snakes, weasels, badgers, bobcats, and coyotes, before they are old enough to reproduce.

Sexual Dimorphism:
Males are larger than females.

Length:
Range: 210-250 mm males; 180-230 mm females

Weight:
Range: 110-175 g males; 80-120 g females

References:

Richardson, 1829; Quadrupeds, in Fauna Boreali-Americana, 1:202.

Links:

Mammal Species of the World

Distribution of Thomomys umbrinus