1. Environmental Sciences Division and Climate Change Science Institute Oak Ridge National Laboratory Oak Ridge TN 37831‐6301 USA
2. Department of Biological Sciences Macquarie University North Ryde NSW 2109 Australia
3. Departamento de Biologia Faculdade de Filosofia Ciências e Letras de Ribeirão Preto Universidade de São Paulo São Paulo 14040‐901 Brasil
4. Hawkesbury Institute for the Environment University of Western Sydney Richmond NSW 2751 Australia
5. Laboratoire de Sciences de Climat et de l'Environnement IPSL Gif‐sur‐Yvette F‐91198 France
6. Laboratório de Ciência do Sistema Terrestre Departamento de Ecologia Universidade Estadual Paulista Rio Claro São Paulo 14800‐850 Brasil
7. Biogeochemical Integration Department Max Planck Institute for Biogeochemistry Jena D‐07701 Germany
8. Birmingham Institute of Forest Research University of Birmingham Edgbaston Birmingham B15 2TT UK
9. Jet Propulsion Laboratory California Institute of Technology Pasadena CA 91109 USA
10. Potsdam Institute for Climate Impact Research Potsdam 14473 Germany
11. TUM School of Life Sciences Weihenstephan Technische Universität München Freising 85354 Germany
12. Department of Physical Geography and Ecosystem Science Lund University Geocentrum II Lund 22362 Sweden