Smithsonian National Museum of Natural History, North American Mammals
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  Rodentia · Cricetidae · Microtus longicaudus
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Microtus longicaudus

Long-tailed Vole

Order: Rodentia
Family: Cricetidae

Image of Microtus longicaudus
Microtus longicaudus - gray and brown variants
Click to enlarge. (66 kb)

Conservation Status: Least Concern.


Long-tailed Voles need cool, moist habitats, so they are found mostly near the peaks of mountain ranges. Fruits and seeds make up the bulk of their diet, but they also eat fungi, bark, and leaves if necessary. Long-tailed Voles live less than one year on average, and females produce only two litters during that time, with an average of five pups per litter. Owls and hawks prey on them, as do some mammals, including martens, long-tailed weasels, and ermine.

Sexual Dimorphism:
Males are larger than females.

Length:
Range: 155-202 mm

Weight:
Range: 36-59 g

References:

Merriam, C.H., 1888.  Description of a new species of meadow mouse from the Black Hills of Dakota, p. 934.  The American Naturalist, 22:934-935.

Links:

Mammal Species of the World

Mammalian Species, American Society of Mammalogists' species account

Distribution of Microtus longicaudus

Image of Microtus longicaudus
Click to enlarge. (125kb)