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Predation on adult moose Alces alces by European brown bears Ursus arctos
- Dahle, B. (author)
-
- Wallin, Kjell, 1952 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Department of Biological and Environmental Sciences
-
- Cederlund, Göran (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekologi,Department of Ecology
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- Swenson, J. E. (author)
- Selvaag, L. S. (author)
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- (creator_code:org_t)
- 2013-06
- 2013
- English.
- In: Wildlife Biology. - : Wiley. - 0909-6396 .- 1903-220X. ; 19:2, s. 165-169
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Several North American studies have reported significant predation rates on moose Alces alces by brown bears Ursus arctos. We documented predation on moose by brown bears in south-central Sweden, where brown bears and moose occurred at estimated densities of 10-30 and 400-1,340/1,000 km(2), respectively. Bears killed 0.8% of radio-collared adult female moose (i.e. >= 1 year old) annually and no male moose (>= 1 year old). Bear predation was the least important mortality factor we documented. Based on tracking brown bears on snow during spring we recorded one successful hunt for every 372 km of tracks and documented attacks only by adult bears and successful attacks only by adult males. Autopsy of moose older than calves that were killed by brown bears revealed that yearlings were more prone to predation than older moose, and that older (i.e. >= 2 years) cows were more vulnerable to predation than older bulls. Our study suggests a lower tendency for Scandinavian brown bears to prey on moose compared to most of the North American studies.
Subject headings
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
- NATURVETENSKAP -- Biologi -- Zoologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Zoology (hsv//eng)
Keyword
- Alces alces
- brown bear
- kill rate
- moose
- predation
- Ursus arctos
- population-size
- calf mortality
- national-park
- alaska
- scandinavia
- caribou
- management
- norway
- calves
- diet
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Dahle, B.
- Wallin, Kjell, 1 ...
- Cederlund, Göran
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- Swenson, J. E.
- Selvaag, L. S.
- About the subject
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- NATURAL SCIENCES
- NATURAL SCIENCES
- and Biological Scien ...
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- NATURAL SCIENCES
- NATURAL SCIENCES
- and Biological Scien ...
- and Zoology
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- University of Gothenburg
- Swedish University of Agricultural Sciences
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