Institution: | Laboratory for Forest, Nature and Landscape Research, Catholic University of Leuven, Vital Decosterstraat 102, B-3000 Leuven, Belgium,;Laboratory for Plant Science and Nature Management, Free University of Brussels, Pleinlaan 2, B-1050 Brussels, Belgium,;Institute of Nature Conservation, Kliniekstraat 25, B-1070 Brussels, Belgium, and;Department of Biology, University of Antwerp, Groenenbrogerlaan 171, 2020 Antwerp, Belgium |