1 Department of Geography and Geosciences, Institute of Geography, Friedrich-Alexander-University Erlangen-NurembergErlangen, Germany.
2 Thünen Institute of Forest EcosystemsEberswalde, Germany.
3 Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Centro de Ecologia Funcional, Universidade de CoimbraCoimbra, Portugal.
4 Département des Sciences Fondamentales, Université du Québec à ChicoutimiChicoutimi, QC, Canada.
5 Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of SciencesGuangzhou, China.
6 Forest Ecology and Forest Management Group, Wageningen University and ResearchWageningen, Netherlands.