1Faculty of Earth and Life Sciences, Department of Systems Ecology, Institute of Ecological Science, Vrije Universiteit, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands
2Department of Biological Sciences, Stanford University, Stanford, CA 94305 USA
3Department of Plant Sciences, University of California, Davis, CA 95616-8780, USA
4Facultad de Ciencias, Departamento de Ecología, Universidad de Alcalá, Alcalá de Henares, Madrid, Spain
5Department of Ecology, Evolution and Behavior, University of Minnesota, 1987 Upper Buford Circle, St. Paul, MN 55108, USA
6Graduate School of Environment and Information Sciences, Yokohama National University, Hodogaya, Yokohama 240-8501, Japan
7Landcare Research, PO Box 40, Lincoln 7640, New Zealand
8Instituto Multidisciplinario de Biología Vegetal, F.C.E.F.yN., Universidad Nacional de Córdoba – CONICET, CC 495, 5000 Córdoba, Argentina
9Department of Botany, Stockholm University, S 106 91 Stockholm, Sweden
10Botany & Plant Sciences, University of California, 2150 Batchelor Hall, Riverside, CA 92521, USA
11Faculty of Forestry, Department of Forest Vegetation Ecology, Swedish University of Agricultural Sciences, Umeå, Sweden
12Landcare Research, Post Office Box 69, Lincoln, New Zealand.
13Department of Biological Sciences, Macquarie University, Sydney, NSW, 2109, Australia
14Departments of Ecology and Evolutionary Biology and Earth System Science, University of California, Irvine, 307 Steinhaus, Irvine, CA 92697, USA
15Potsdam Institute for Climate Impact Research, Climate Systems Research Department, P.O. Box 601203, 14412 Potsdam, Germany
16School of Biological Science, Monash University, Clayton, VIC, 3800, Australia
17Department of Animal and Plant Sciences, Western Bank, Sheffield S10 2TN, UK
18Royal Swedish Academy of Sciences, Abisko Research Station, S-981-07, Abisko, Sweden
19CNRS, Centre d'Ecologie Fonctionnelle et Evolutive (UMR 5175), 1919 route de Mende, 34293 Montpellier Cedex 5, France
20Department of Forest, Rangeland & Watershed Stewardship, Colorado State University, Fort Collins, CO 80523-1499, USA
21Department of Forest Resources, University of Minnesota, St. Paul, MN 55108, USA
22Faculty of Biology, Department of Geobotany, Moscow State University, Moscow, Russia
