Abstract. ), its distribution is patchy; it is present in high numbers in some areas but absent in others. Abstract Context.
Population Population threats. The Arctic ground squirrel is found in Arctic regions of Alaska, Canada and Russia. The arctic ground squirrel (Urocitellus parryii) comprised 17% of the biomass of herbivores in the Yukon boreal forest during the summer months from 1987 to 1996 and was responsible for 23% of the energy flow at the herbivore level. Unlike most tundra rodents, the arctic ground squirrel, Spermophilus undulatus, maintains a relatively constant population. Arctic ground squirrels (Spermophilus parryii) are abundant, colonial, noncyclical small mammals whose within-range distribution patterns have received little scientific attention.The distribution of arctic ground squirrels may drive the abundance and spatial arrangement of other arctic ecosystem components, because they serve as a prey item, plant predator, and …
Context The arctic ground squirrel (Urocitellus parryii) comprised 17% of the biomass of herbivores in the Yukon boreal forest during the summer months from 1987 to 1996 and was responsible for 23% of the energy flow at the herbivore level. Permafrost and soil type are two of the most important factors limiting ground squirrel distribution in Denali. Although the species is found across an extremely wide area (covering an estimated 2 million km 2 / 770,000 sq.
Arctic ground squirrel population collapse in the boreal forests of the Southern Yukon Jeffery R. WernerA,E, Charles J. KrebsA, Scott A. DonkerB, Rudy BoonstraC and Michael J. SheriffD ADepartment of Zoology, University of British Columbia, 6270 University Boulevard, Vancouver, BC V6T 1Z4, Canada. Arctic ground squirrels are hunted for their skin and meat for local trade, and by Northern American Inuit tribes, which use their skins for boots, clothing, and other items. Aims.
The Arctic ground squirrel is found in Alaska and in Arctic regions of eastern Russia and Canada. NPS Photo / Alex Vanderstuyf. By 2000, ground squirrel populations in this region collapsed to nearly zero and have remained there. Arctic Ground Squirrel . mi. This species is common in the ice-free mountainous regions of Denali. By 2000, ground squirrel populations in this region collapsed to nearly zero and have remained there. Arctic ground squirrels are the largest and most northern of the North American ground squirrels. The habitat of this species is being degraded by human expansion and increased agriculture.