1. Department of Forestry and Wildlife Management; Hedmark University College; Campus Evenstad NO-2480 Koppang Norway
2. School of Biological Sciences; University of Aberdeen; Tillydrone Avenue Aberdeen AB24 2TZ UK
3. Department of Bioscience; Aarhus University; Frederiksborgvej 399 Roskilde 4000 Denmark
4. Dr. Moritz Zandergasse 7; 2380 Perchtoldsdorf Austria
5. Department of Animal and Poultry Science & Indigenous Land Management Institute; College of Agriculture and Bioresources; University of Saskatchewan; 51 Campus Drive Saskatoon SK S7N 5E2 Canada