1. Institut des Sciences de l’Evolution de Montpellier, Université de Montpellier, CNRS, IRD, EPHE, France
2. Northern Water Problems Institute of the Karelian Research Centre of the Russian Academy of Sciences, Russia
3. Herzen State Pedagogical University of Russia, Russia
4. Forest Research Institute of the Karelian Research Centre of the Russian Academy of Sciences, Russia
5. Southern Swedish Forest Research Center, Swedish University of Agricultural Sciences, Sweden
6. Institut de recherche sur les forêts, Université du Québec en Abitibi-Témiscamingue, Canada
7. Laurentian Forestry Centre, Canadian Forest Service, Natural Resources Canada, Canada
8. TETIS, IRSTEA, AgroParisTech, CIRAD, CNRS, Université de Montpellier, France