[1] Tech Univ Munich, Terr Ecol Res Grp, Dept Ecol & Ecosyst Management, Hans Carl von Carlowitz Pl 2, D-85350 Freising Weihenstephan, Germany
[2] Royal Belgian Inst Nat Sci, Belgian Biodivers Platform, B-1050 Brussels, Belgium
[3] Univ Ghent, Dept Biol, Limnol Unit, B-9000 Ghent, Belgium
[4] Univ Ghent, Dept Biol, Terr Ecol Unit, B-9000 Ghent, Belgium
[5] Univ Bayreuth, Bayreuth Ctr Ecol & Environm Res BayCEER, D-95447 Bayreuth, Germany
[6] German Ctr Integrat Biodivers Res iDiv, Synth Ctr SDiv, D-04103 Leipzig, Germany
[7] Univ Hamburg, Bioctr Klein Flottbek, Biodivers Evolut & Ecol Plants BEE, D-22609 Hamburg, Germany
[8] Univ Hamburg, Bot Gardens, D-22609 Hamburg, Germany