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Large-scale noninvasive genetic monitoring of wolverines using scats reveals density dependent adult survival
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Evolutionary Biology.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Evolutionary Biology.
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2010 (English)In: Biological Conservation, ISSN 0006-3207, E-ISSN 1873-2917, Vol. 143, no 1, 113-120 p.Article in journal (Refereed) Published
Abstract [en]

Noninvasive genetic monitoring has the potential to estimate vital rates essential for conservation and management of many species. In a long-term genetic capture-mark-recapture study using scats we evaluated temporal variation in adult survival in a wolverine (Gulo gulo) population in southern Norway. In contrast to most previous studies of large mammals we found evidence for negative density dependence in adult survival in this large carnivore. Both sexes showed the same pattern of density dependence, with higher annual survival rates in adult females than males. In addition, we also found an additive mortality effect of harvesting in the population, resulting in the lowest adult survival rates at a combination of high population density and high harvest rate. The additive effects of density and harvest on adult survival of wolverines have relevance to the conservation and management of solitary carnivores with strong intrasexual territoriality, especially for species where combats among conspecifics can cause serious injury or even mortality.

Place, publisher, year, edition, pages
2010. Vol. 143, no 1, 113-120 p.
Keyword [en]
Capture-mark-recapture, Demographic parameters, Gulo gulo, Harvest rate, Large carnivore, Vital rates
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:uu:diva-137868DOI: 10.1016/j.biocon.2009.09.012ISI: 000274354200017OAI: oai:DiVA.org:uu-137868DiVA: diva2:378633
Available from: 2010-12-16 Created: 2010-12-16 Last updated: 2017-12-11Bibliographically approved

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Johansson, MalinEllegren, Hans

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