1. Department of Forestry and Wildlife Management, Faculty of Applied Ecology and Agricultural Sciences, Hedmark University College, Campus Evenstad, NO-2418 Elverum, Norway
2. Department of Wildlife, Fish and Environmental Studies, Faculty of Forest Sciences, Swedish University of Agricultural Sciences, SE-90183, Umeå, Sweden
3. Section of Arctic Veterinary Medicine, Department of Food Safety and Infection Biology, Norwegian School of Veterinary Science, Stakkevollveien 23, NO-9010 Tromsø, Norway
4. Grimsö Wildlife Research Station, Department of Conservation Biology, Faculty of Natural Resources and Agricultural Sciences, Swedish University of Agricultural Sciences, SE-73091 Riddarhyttan, Sweden
5. Vaikijaur 617, SE-96299 Jokkmokk, Sweden