1. Swiss Federal Research Institute WSL CH‐8903 Birmensdorf Switzerland
2. Section for Genetics and Evolutionary Biology (EVOGENE)University of Oslo Blindernveien 31 0316 Oslo Norway
3. Department of GeographyUniversity of Cambridge CB2 3EN Cambridge United Kingom
4. Global Change Research Centre and Masaryk University 613 00 Brno Czech Republic
5. Department of Biological SciencesUniversity of Bergen P.O. Box 7803 N‐5020 Bergen Norway
6. Centre for Macroecology, Evolution and ClimateNatural History Museum of DenmarkUniversity of Copenhagen DK‐2100 Copenhagen Denmark
7. School of BiosciencesCardiff University Museum Avenue Cardiff CF10 3AX United Kingdom
8. Bavarian Forest National Park Freyunger Str. 2 94481 Grafenau Germany
9. Chair for Terrestrial EcologyTechnical University of Munich Hans‐Carl‐von‐Carlowitz‐Platz 2 85354 Freising Germany
10. School of Biological SciencesRoyal HollowayUniversity of London Egham Surrey TW20 0EX United Kingdom
11. Forestry and Forest ResourcesNorwegian Institute of Bioeconomy Research Fanaflaten 4 N‐5244 Fana Norway
12. Mycology SectionJodrell LaboratoryRoyal Botanic Garden Kew, Richmond Surrey TW9 3DS United Kingdom
13. Department of Botany and Biodiversity ResearchUniversity of Vienna 1030 Vienna Austria
14. Department of Soil QualityWageningen University P.O. Box 47 6700 AA Wageningen The Netherlands