| Affiliation: | 1. Department of Plant and Environmental Sciences, University of Copenhagen, Frederiksberg C, Denmark;2. Department of Ecology, Swedish University of Agricultural Sciences, Box 7044, 75007, Uppsala, Sweden;3. Department of Botany and Landscape Ecology, University of Greifswald, Greifswald, Germany;4. Department of Ecology and Ecosystem Management, Technische Universit?t München, Freising, Germany;5. Department of Food and Resource Economics, University of Copenhagen, Frederiksberg C, Denmark |
