1. Faculty of Science and Technology; Free University of Bozen-Bolzano; Bolzano Italy
2. Ecology and Conservation Biology; Institute of Plant Sciences; University of Regensburg; Regensburg Germany
3. Biogeography; University of Bayreuth; Bayreuth Germany
4. School of Biosciences and Veterinary Medicine; Plant Diversity and Ecosystems Management Unit; University of Camerino; Camerino Italy
5. Experimental Plant Ecology; Institute of Botany and Landscape Ecology; Greifswald University; Greifswald Germany
6. Disturbance Ecology; University of Bayreuth; Bayreuth Germany