1. Department of Evolutionary Biology and Environmental Studies University of Zurich Zürich Switzerland
2. Department of Aquatic Ecology Swiss Federal Institute of Aquatic Science and Technology (Eawag) Dübendorf Switzerland
3. Research Division 3: Marine Ecology GEOMAR Helmholtz Centre for Ocean Research Kiel Germany
4. University Research Priority Programme (URPP) on Global Change and Biodiversity University of Zurich Zürich Switzerland