1. Humboldt University Berlin Berlin Germany
2. IGB Leibniz Institute of Freshwater Ecology and Inland Fisheries Berlin Berlin Germany
3. Northern Rivers Institute, School of Geosciences University of Aberdeen Aberdeen UK
4. Department of Geography Trent University Peterborough Ontario Canada
5. School of Earth, Environment & Society McMaster University Hamilton Ontario Canada
6. Department of Geoscience Boise State University Boise Idaho USA
7. Department of Forest Ecology and Management Swedish University of Agricultural Sciences Umeå Sweden
8. Lawrence Berkeley National Laboratory Berkeley California USA