1. Swansea University, UK
2. Finnish Forest Research Institute, Rovaniemi Research Unit, Finland
3. Stockholm University, Sweden
4. University of Tromsø, Norway
5. University of Hohenheim, Germany
6. University of Gothenburg, Sweden
7. Helmholtz Centre for Environment, Germany
8. Russian Academy of Science, Russia
9. Newcastle University, UK
10. University of Oxford, UK
11. GKSS Research Centre, Germany