1. Forest & Nature Lab, Department of Environment, Ghent University, Geraardsbergsesteenweg 267, 9090 Gontrode, Belgium
2. Center for Microbial Ecology and Technology (CMET), Department of Environment, Ghent University, Coupure Links 653, 9000 Gent, Belgium
3. Southern Swedish Forest Research Centre, Swedish University of Agricultural Sciences, Sundsvägen 5, 23053 Alnarp, Sweden
4. Department of Physical Geography, Stockholm University, Svante Arrhenius väg 8, 10691 Stockholm, Sweden
5. Plant Biodiversity Lab, University of Picardy Jules Verne, 1 rue des Louvels, 80037 Amiens, France
6. Vegetation Ecology and Conservation Biology, Faculty of Biology/Chemistry (FB 02), University of Bremen, Bibliothekstraße 1, 28359, Bremen, Germany
7. Department of Botany, University of Tartu, Ülikooli 18, 50090 Tartu, Estonia
8. Biotic Interactions between Forest and Agricultural Land, Leibniz Centre for Agricultural Landscape Research (ZALF), Eberswalder Straße 84, 15374 Müncheberg, Germany
9. Department of Ecology, Faculty of Biology and Environmental Protection, University of Silesia, Bankowa 9, 40032 Katowice, Poland
10. School of Natural Sciences, Technology and Environmental Studies, Södertörn University. Alfred Nobels allé 7 Flemingsberg, 14189 Huddinge, Sweden