1. Department of Forest Ecology and Management Swedish University of Agricultural Sciences 901‐83 Umeå Sweden
2. INRAE, Bordeaux Sciences Agro, UMR 1391 ISPA 71 avenue Edouard Bourlaux, CS 20032 F33882 Villenave‐d'Ornon cedex France
3. Department of Forest Mycology and Plant Pathology Uppsala BioCenter, Swedish University of Agricultural Sciences Box 7026 SE‐75007 Uppsala Sweden
4. Department of Soil and Environment Swedish University of Agricultural Sciences Box 7014 SE‐75007 Uppsala Sweden
5. CSIRO Agriculture & Food Kaurna Country, Locked Bag 2 Glen Osmond South Australia 5064 Australia
6. Asian School of the Environment Nanyang Technological University 50 Nanyang Avenue Singapore City 639798 Singapore