1. Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biosciences University of Oslo P.O. Box 1066 Blindern NO‐0316 Oslo Norway
2. Håkon Magnussons gate 1B 7041 Trondheim Norway
3. Department of Forestry and Forestry Resources Norwegian Institute of Bioeconomy Research Tingvoll gard NO‐6630 Tingvoll Norway
4. Norwegian Institute for Nature Research (NINA) Sognsveien 68 NO‐0855 Oslo Norway