1. Laboratory of Ecohydrology École Polytechnique Fédérale Lausanne (EPFL) 1015 Lausanne Switzerland
2. Ralph M. Parsons Laboratory Department of Civil and Environmental Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
3. Department of Aquatic Ecology Eawag: Swiss Federal Institute of Aquatic Science and Technology 8600 Dübendorf Switzerland
4. Dipartimento ICEA Università di Padova 35131 Padova Italy
5. Institute of Evolutionary Biology and Environmental Studies University of Zurich 8057 Zürich Switzerland