1. Department of Thematic Studies–Water and Environmental Studies, Linköping University, SE-58183 Linköping, Sweden.
2. Department of Limnology, Evolutionary Biology Centre, Uppsala University, SE-75236 Uppsala, Sweden.
3. Department of Ecology, Evolution, and Organismal Biology, Iowa State University, Ames, IA 50011, USA.
4. Department of Geological Sciences, Stockholm University, SE-10691 Stockholm, Sweden.
5. Department of Ecology, University Federal of Rio de Janeiro, 68020 Rio de Janeiro, Brazil.