1. The Norwegian Inst. for Nature Research Torgarden Trondheim Norway
2. Swedish Univ. of Agricultural Sciences, Dept of Wildlife, Fish and Environmental Studies Umeå Sweden
3. Swedish Univ. of Agricultural Sciences, Swedish Species Information Centre Uppsala Sweden
4. Natural Resources Inst. Finland Joensuu Finland
5. Grimsö Wildlife Research Station, Dept of Ecology, Swedish Univ. of Agricultural Sciences Riddarhyttan Sweden
6. School of Biological Sciences, Univ. of Aberdeen Aberdeen UK
7. Faun Naturforvaltning AS Fyresdal Norway
8. Centre for Ecological and Evolutionary Synthesis (CEES), Dept of Biosciences, Univ. of Oslo Blindern Oslo Norway