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Genetic consequences of conservation action: Restoring the arctic fox (Vulpes lagopus) population in Scandinavia
Norwegian Institute for Nature Research.
Norwegian Institute for Nature Research.ORCID-id: 0000-0002-5534-8069
Centre for Biodiversity Dynamics (CBD), Dept of Biology, Norwegian University of Science and Technology (NTNU).
Department of Zoology, Stockholm University. (Swedish Arctic Fox Project)ORCID-id: 0000-0002-9707-5206
Vise andre og tillknytning
2020 (engelsk)Inngår i: Biological Conservation, ISSN 0006-3207, E-ISSN 1873-2917, Vol. 248, artikkel-id 108534Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The Arctic fox (Vulpes lagopus) population in Fennoscandia experienced a drastic bottleneck in the late 19th century as a result of high hunting pressure. In the 1990s, despite nearly 70 years of protection, the population showed no signs of recovery. In order to mitigate the population decline and facilitate re-establishment, conservation actions including supplementary feeding and red fox culling were implemented in 1998, followed by the reintroduction of foxes from a captive breeding programme, starting in 2006. A positive demographic impact of these actions is evident from a doubling of the population size over the past decade. We used genetic data collected in eight subpopulations between 2008 and 2015 to address whether the recent demographic recovery has been complemented by changes in genetic variation and connectivity between subpopulations. Our results show that genetic variation within subpopulations has increased considerably during the last decade, while genetic differentiation among subpopulations has decreased. A marked shift in metapopulation dynamics is evident during the study period, suggesting substantially increased migration across the metapopulation. This shift followed the recolonization of an extinct subpopulation through the release of foxes from the captive breeding programme and was synchronized in time with the implementation of supplementary feeding and red fox culling in stepping stone patches between core subpopulations in mid-Scandinavia. Indeed, the increase in genetic variation and connectivity in the Scandinavian arctic fox population suggests that metapopulation dynamics have been restored, which may indicate an increase in the long-term viability of the population.

sted, utgiver, år, opplag, sider
2020. Vol. 248, artikkel-id 108534
Emneord [en]
Genetic variation, Population structure, Connectivity, Dispersal, Metapopulation, Captive breeding and release
HSV kategori
Forskningsprogram
Livets mångfald; Ekosystem och arthistoria; Den föränderliga jorden; Naturmiljö och människan
Identifikatorer
URN: urn:nbn:se:nrm:diva-4005DOI: 10.1016/j.biocon.2020.108534OAI: oai:DiVA.org:nrm-4005DiVA, id: diva2:1509288
Prosjekter
Swedish Arctic Fox Project
Forskningsfinansiär
The Research Council of Norway, 244557/E50EU, European Research Council, LIFE03 NAT/S/000073EU, European Research Council, N30441-5-10/09/10, 304-4159-13, 20200939 IR 2016-01Swedish Research Council Formas, 2015-1526The Research Council of Norway, 223257Tilgjengelig fra: 2020-12-12 Laget: 2020-12-12 Sist oppdatert: 2020-12-12bibliografisk kontrollert

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Forlagets fullteksthttps://www.sciencedirect.com/science/article/pii/S0006320719315897

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Flagstad, ØysteinNorén, KarinWallén, Johan FredrikLanda, ArildAngerbjörn, AndersEide, Nina E.
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Biological Conservation

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