Affiliation: | Department of Botany, Stockholm University, SE-10691 Stockholm, Sweden;;Finnish Environment Institute, Division of Nature and Land Use, Species Protection Unit, FIN-00251, Helsinki, Finland;;Section of Ecology, Department of Biology, University of Turku, FIN-20014 Turku, Finland;;Instituto Pirenaico de Ecología (CSIC), Apdo. 202, 50080 Zaragoza, Spain;and;Department of Natural Sciences, Södertörn University College, SE-14189 Huddinge, Sweden |