He baited a few live traps with peanut butter rolled in oats and placed them in spruce trees. Olson wanted to document the northern red-backed vole’s climbing in a science journal. Recent Posts. Pregnancy lasts 17 to 19 days. NPS Photo. Finding the great earthquake of 1900. Vole . UAF photo by Todd Paris. For help, he didn’t have to look far. Although the northern red‐backed vole eats spruce seeds, these seeds are apparently an incomplete diet, and voles will lose weight if forced to eat only spruce seeds, but not if a supplement of lichens is also given (Dyke 1971; Grodzinski 1971). These rodents are small, weighing 6–42 grams, and ranging from 130–158 mm in length. A northern red-backed vole climbing down a tree. The red-backed voles have a grayish pelage on their undersides and reddish or rusty-colored backs. These small to medium-sized voles have small eyes, and small ears reaching just above their fur. Instead, peering back at him were the beady eyes of the mice of the north, red-backed voles. Biogeographic Regions; nearctic. March 05, 2021 . The curator of mammals at the University of Alaska Museum of the North, Olson knew a bit about northern red-backed voles. Activity: Voles are active at all times of the year, day and night, and they do not hibernate. Life History Growth and Reproduction Northern red-backed voles can breed up to four times per year. Their average total length is 5.5 inches, including their 1.5 inch tail. Voles reproduce throughout the entire year, with peak rates in the spring and summer. A healthy female can rear 2 or 3 litters in a year. He thought back to the few vole papers he had read and did not remember a sentence about their ability to climb. Malaspina Glacier gets up and goes. A northern red-backed vole climbing down a tree. Northern red-backed voles are medium mouse-sized, reaching an average total length of 130 to 158 mm and usually weighing about 30 g. The tail is 30 to 40 mm long, hind foot is 18.5 to 21.0 mm long and ears are 10 to 14 mm long. He thought back to the few vole papers he had read and did not remember a sentence about their ability to climb. Their average total length is … Vole Behavior. Red-backed voles, Myodes gapperi, range from British Columbia to mainland Newfoundland and throughout the northern United States from the Rocky Mountains to the Appalachians. February 25, 2021 ‘Ghost forest’ got run over by a glacier. Red-backed voles inhabit cool, mossy and rocky boreal forests in both dry and moist areas. Red-backed voles breed in all but the coldest months. Reproduction: As some of the most prolific breeders in the rodent family, voles can produce 5-10 litters per year with 3-6 young per litter. There are 6 species of shrews (common, pygmy, dusky, water, tundra, and tiny), one species of mice (meadow jumping mouse), 5 species of voles (northern red-backed, singing, tundra, meadow, and yellow-cheeked), and 2 species of lemmings (brown and northern … March 11, 2021 . Northern red-backed voles (also called tundra voles, but not to be confused with true tundra voles, below) usually have a broad reddish stripe down their back and tan-red sides. Geographic Range. These small to medium-sized voles have small eyes, and small ears reaching just above their fur. A northern red-backed vole climbs down a tree. UAF photo by Todd Paris. The curator of mammals at the University of Alaska Museum of the North, Olson knew a bit about northern red-backed voles. Northern Red-Backed Vole (Clethrionomys rutilus) Red-backed voles usually have a broad reddish stripe down their back and buffy-red sides. The mating system of red-backed voles has not been described. 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