Foraging strategies of wolverines within a predator guild
Within the predator guild, wolverines ( Gulo gulo (L., 1758)) have evolved as generalist predators and scavengers on prey killed by other predators. The recovery of wolves ( Canis lupus L., 1758) in the boreal forests of southern Norway during the late 1990s may have triggered consequent recolonizat...
Published in: | Canadian Journal of Zoology |
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Canadian Science Publishing
2008
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Online Access: | http://dx.doi.org/10.1139/z08-073 http://www.nrcresearchpress.com/doi/full-xml/10.1139/Z08-073 http://www.nrcresearchpress.com/doi/pdf/10.1139/Z08-073 |
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crcansciencepubl:10.1139/z08-073 2024-04-07T07:45:58+00:00 Foraging strategies of wolverines within a predator guild van Dijk, Jiska Andersen, Tommy May, Roel Andersen, Reidar Andersen, Roy Landa, Arild 2008 http://dx.doi.org/10.1139/z08-073 http://www.nrcresearchpress.com/doi/full-xml/10.1139/Z08-073 http://www.nrcresearchpress.com/doi/pdf/10.1139/Z08-073 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 86, issue 9, page 966-975 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 2008 crcansciencepubl https://doi.org/10.1139/z08-073 2024-03-08T00:37:46Z Within the predator guild, wolverines ( Gulo gulo (L., 1758)) have evolved as generalist predators and scavengers on prey killed by other predators. The recovery of wolves ( Canis lupus L., 1758) in the boreal forests of southern Norway during the late 1990s may have triggered consequent recolonization by wolverines through increased carcass availability. We investigated winter foraging behavior of wolverines in the boreal forest with regard to wolf, lynx ( Lynx lynx (L., 1758)), and red fox ( Vulpes vulpes (L., 1758)) presence. We followed 55 wolverine tracks in the snow from at least nine individuals for a total of 237 km during the winters of 2003–2004. We documented 19 moose ( Alces alces (L., 1758)) and 4 bird carcasses, and no successful hunts. Wolverines did not follow guild species trails directly to carcasses; however, they did change their movement patterns after red fox encounters. While wolverines were more active at higher elevations, the probability of encountering a wolf was higher at lower elevations, suggesting a spatial separation between wolverines and wolves. Although wolverines seem to depend on wolf for carrion during winter, they did not use wolf trails to find carcasses. This may indicate that wolverines reduce risk of intraguild predation by avoiding direct confrontation with wolves. Article in Journal/Newspaper Alces alces Canis lupus Gulo gulo wolverine Lynx Lynx lynx lynx Canadian Science Publishing Norway Canadian Journal of Zoology 86 9 966 975 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics van Dijk, Jiska Andersen, Tommy May, Roel Andersen, Reidar Andersen, Roy Landa, Arild Foraging strategies of wolverines within a predator guild |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Within the predator guild, wolverines ( Gulo gulo (L., 1758)) have evolved as generalist predators and scavengers on prey killed by other predators. The recovery of wolves ( Canis lupus L., 1758) in the boreal forests of southern Norway during the late 1990s may have triggered consequent recolonization by wolverines through increased carcass availability. We investigated winter foraging behavior of wolverines in the boreal forest with regard to wolf, lynx ( Lynx lynx (L., 1758)), and red fox ( Vulpes vulpes (L., 1758)) presence. We followed 55 wolverine tracks in the snow from at least nine individuals for a total of 237 km during the winters of 2003–2004. We documented 19 moose ( Alces alces (L., 1758)) and 4 bird carcasses, and no successful hunts. Wolverines did not follow guild species trails directly to carcasses; however, they did change their movement patterns after red fox encounters. While wolverines were more active at higher elevations, the probability of encountering a wolf was higher at lower elevations, suggesting a spatial separation between wolverines and wolves. Although wolverines seem to depend on wolf for carrion during winter, they did not use wolf trails to find carcasses. This may indicate that wolverines reduce risk of intraguild predation by avoiding direct confrontation with wolves. |
format |
Article in Journal/Newspaper |
author |
van Dijk, Jiska Andersen, Tommy May, Roel Andersen, Reidar Andersen, Roy Landa, Arild |
author_facet |
van Dijk, Jiska Andersen, Tommy May, Roel Andersen, Reidar Andersen, Roy Landa, Arild |
author_sort |
van Dijk, Jiska |
title |
Foraging strategies of wolverines within a predator guild |
title_short |
Foraging strategies of wolverines within a predator guild |
title_full |
Foraging strategies of wolverines within a predator guild |
title_fullStr |
Foraging strategies of wolverines within a predator guild |
title_full_unstemmed |
Foraging strategies of wolverines within a predator guild |
title_sort |
foraging strategies of wolverines within a predator guild |
publisher |
Canadian Science Publishing |
publishDate |
2008 |
url |
http://dx.doi.org/10.1139/z08-073 http://www.nrcresearchpress.com/doi/full-xml/10.1139/Z08-073 http://www.nrcresearchpress.com/doi/pdf/10.1139/Z08-073 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Alces alces Canis lupus Gulo gulo wolverine Lynx Lynx lynx lynx |
genre_facet |
Alces alces Canis lupus Gulo gulo wolverine Lynx Lynx lynx lynx |
op_source |
Canadian Journal of Zoology volume 86, issue 9, page 966-975 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z08-073 |
container_title |
Canadian Journal of Zoology |
container_volume |
86 |
container_issue |
9 |
container_start_page |
966 |
op_container_end_page |
975 |
_version_ |
1795675106666610688 |