1. Swiss Federal Institute for Forest Snow and Landscape Research (WSL) Birmensdorf CH‐8903 Switzerland
2. Oeschger Centre for Climate Change Research (OCCR) University of Bern Bern CH‐3012 Switzerland
3. Global Change Research Centre AS CR v.v.i. Bělidla 986/4a Brno CZ‐60300 Czech Republic
4. Northern Research Station USDA Forest Service Morgantown WV 26505 USA
5. Department of Wildlife and Fishery Service Grison CH‐7001 Chur Switzerland
6. Centre for Ecological and Evolutionary Synthesis (CEES) Department of Biosciences University of Oslo PO Box NO‐1066 Blindern 0316 Oslo Norway