1. Experimental Plant Ecology Institute of Botany and Landscape Ecology University of Greifswald Greifswald Germany
2. Plant Ecology Albrecht von Haller Institute for Plant Sciences University of Goettingen Goettingen Germany
3. Department of Geography and Planning School of Environmental Sciences University of Liverpool Liverpool UK
4. Department of Silviculture and Genetics of Forest Trees Forest Research Institute Raszyn Poland
5. Chair of Forest Growth and Woody Biomass Production TU Dresden Dresden Germany
6. Landscape Ecology and Ecosystem Dynamics Institute of Botany and Landscape Ecology University of Greifswald Greifswald Germany