1. Leibniz‐Institute of Freshwater Ecology and Inland Fisheries Müggelseedamm 301 & 310 12587 Berlin Germany
2. Department of Ecology and Genetics, Limnology Uppsala University Norbyvägen 18D 75236 Uppsala Sweden
3. Department of Watershed Sciences and Ecology Center Utah State University 5210 Old Main Hill Logan Utah 84322‐5200 USA
4. Institute for Biochemistry and Biology University of Potsdam Am Neuen Palais 10 14469 Potsdam Germany
5. Aquatic Ecology Group University of Vic – Central University of Catalonia c/ de la Laura 13 08500 Vic, Barcelona Catalonia Spain
6. Catalan Institution for Research and Advanced Studies ICREA Passeig Lluís Companys, 23 08010 Barcelona Catalonia Spain