Affiliation: | (1) Institute of Geography, University of Bern, Hallerstrasse 12, 3012 Bern, Switzerland;(2) Biology Department, University of Teacher Education, Gertrud-Wokerstrasse 5, 3012 Bern, Switzerland;(3) Station Alpine J. Fourier UMS 2925 UJF-CNRS, University of Grenoble, 38041 Grenoble, France;(4) Laboratoire d’Ecologie Alpine UMR 5553 UJF-CNRS, University of Grenoble, 38041 Grenoble, France |