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dc.contributor.authorvan der Veen, Bert
dc.contributor.authorMattisson, Jenny
dc.contributor.authorZimmermann, Barbara
dc.contributor.authorOdden, John
dc.contributor.authorPersson, Jens
dc.description.abstractFood-caching animals can gain nutritional advantages by buffering seasonality in food availability, especially during times of scarcity. The wolverine (Gulo gulo) is a facultative predator that occupies environments of low productivity. As an adaptation to fluctuating Food availability, wolverines cache perishable food in snow, boulders, and bogs for short- and long-term storage. We studied caching behavior of 38 GPS-collared wolverines in four study areas in Scandinavia. By investigating clusters of GPS locations, we identified a total of 303 food caches from 17 male and 21 female wolverines.Wolverines cached food all year around, from both scavenging and predation events, and spaced their caches widely within their home range.Wolverines cached food items on average 1.1 km from the food source andmade between 1 and 6 caches per source.Wolverines cached closer to the source when scavenging carcasses killed by other large carnivores; this might be a strategy to optimize food gain when under pressure of interspecific competition.When caching, wolverines selected for steep and rugged terrain in unproductive habitat types or in forest, indicating a preference for less-exposed sites that can provide cold storage and/or protection against pilferage. The observed year-round investment in caching by Wolverines underlines the importance of food predictability for survival and reproductive success in this species. Increasing temperatures as a consequence of climate change may provide newchallenges for wolverines by negatively affecting the preservation of cached food and by increasing competition from pilferers that benefit from awarmer climate. It is however still not fully understood which consequences this may have for the demography and behavior of the wolverine.en_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.subjectGulo guloen_US
dc.subjectcaching behavioren_US
dc.titleRefrigeration or anti-theft? Food-caching behavior of Wolverines (Gulo gulo) in Scandinaviaen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.subject.nsiVDP::Zoologiske og botaniske fag: 480en_US
dc.subject.nsiVDP::Zoology and botany: 480en_US
dc.source.journalBehavioral Ecology and Sociobiologyen_US
dc.relation.projectAndre: Norwegian Environment Agencyen_US
dc.relation.projectNorges forskningsråd: 212919en_US
dc.relation.projectAndre: Reindeer Development Fund in Norwayen_US
dc.relation.projectAndre: European Association for Zoo and Aquariaen_US
dc.relation.projectAndre: “Marie-Claire Cronstedts Stiftelse”en_US
dc.relation.projectAndre: Swedish Environmental Protection Agencyen_US
dc.relation.projectAndre: County administrations in Tromsen_US
dc.relation.projectAndre: County administrations in Finnmarken_US
dc.relation.projectAndre: World Wide Fund for Nature (Sweden)en_US
dc.relation.projectAndre: Swedish Research Council for Environment, Agricultural Scienen_US
dc.relation.projectAndre: Carnivore Management Boards in regions 6 and 8en_US
dc.relation.projectAndre: County administrations in Nord-Trøndelagen_US
dc.relation.projectAndre: “Olle och Signhild Engkvists Stiftelser”en_US

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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal