1. Department of Environmental Systems Science, Ecosystems and Landscape Evolution Institute of Terrestrial Ecosystems, ETH Zürich Zürich 8092 Switzerland
2. Swiss Federal Institute for Forest, Snow and Landscape Research WSL Birmensdorf 8903 Switzerland
3. Department of Aquatic Ecology, Eawag Swiss Federal Institute of Aquatic Science and Technology Überlandstrasse 133 Dübendorf 8600 Switzerland
4. Department of Evolutionary Biology and Environmental Studies University of Zürich Winterthurerstrasse 190 8057 Zürich Switzerland
5. State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment Nanjing University Nanjing 210023 P. R. China
6. SPYGEN Le Bourget‐du‐Lac France