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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/354

Title: Effects of food and predators on the home-range sizes of arctic ground squirrels (Spermophilus parryii)
Authors: Hubbs, Anne H.
Boonstra, Rudy
Issue Date: 1998
Publisher: NRC Canada
Citation: Can. J. Zool., 76: 592-596 (1998)
Abstract: We used radiotelemetry to study the effects of food addition and predator reduction on the home-range sizes of adult arctic ground squirrels (Spermophilus parryii) on large-scale experimental grids in the boreal forest of the southwestern Yukon Territory. Home ranges were 2-7 times smaller on food-supplemented grids than on nonsupplemented grids, regardless of whether large mammalian predators were present. Similarly, core areas (where 50% of activities occur) were 8-11 times smaller on food-supplemented grids. Food availability rather than predator presence primarily determined the sizes of home ranges and core areas of arctic ground squirrels.
URI: http://hdl.handle.net/1807/354
Appears in Collections:Biology

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