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Meadow Jumping Mouse (Zapus Hudsonius)

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Meadow Jumping Mouse (Zapus Hudsonius) FIELD GUIDE TO NORTH AMERICAN MAMMALS Meadow Jumping Mouse (Zapus hudsonius) ORDER: Rodentia FAMILY: Dipodidae Conservation Status: Preble's Meadow Jumping Mouse, Zapus hudsonius preblei, is Endangered; the Black Hills meadow jumping mouse, Z. hudsonius campestris, is Vulnerable and Z. hudsonius luteus is Near Threatened. Meadow Jumping Mice have very long tails and very large feet. Credit: painting by Ron Klinger from Kays and Wilson's Mammals of North America, © Princeton University Press They are most common in grassy or weedy fields, where they use (2002) runways made by other rodents. If they are frightened, they may creep away through the grass, or make a series of short jumps. They have to put on about six grams of fat in the fall, because they burn about a gram a month in their six months of hibernation. Jumping Mice have litters of 3−6 young after an 18−day gestation period. Most of the Mice born late in the summer are not able to put on enough weight to survive hibernation. Also known as: Hudson Bay Jumping Mouse, Kangaroo Mouse Sexual Dimorphism: None Length: Average: 202 mm Range: 180−234 mm Weight: Range: 12−30 g http://www.mnh.si.edu/mna 1 FIELD GUIDE TO NORTH AMERICAN MAMMALS Western Jumping Mouse (Zapus princeps) ORDER: Rodentia FAMILY: Dipodidae Western Jumping Mice are common in meadows, streamsides, and marshes in northwestern mountains. They also occur in subalpine meadows, and are found at low densities in dry, low−elevation, grassy habitats. The Mice have one litter per year. The young nurse for about a month, and after weaning have a month and a half to eat Zapus princeps − hibernating seeds and put on the fat they need to hibernate. Their summer weight Credit: painting by Ron Klinger from Kays and Wilson's Mammals of North America, © Princeton University Press is 18−24 g; just before hibernation, they can weigh up to 35 g. Only (2002) about half the juveniles who enter hibernation survive the winter. Sexual Dimorphism: None Length: Average: 231 mm Range: 216−247 mm Weight: Range: 18−24 g http://www.mnh.si.edu/mna 2.
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