About the Authors
Uppsala University, Department of Ecology and Genetics, Limnology, Uppsala, Sweden
Swedish University of Agricultural Sciences, Aquatic Sciences and Assessment, Uppsala, Sweden
Limnological Station, Institute of Plant Biology, Kilchberg, Switzerland
University of Jyväskylä, Department of Biological and Environmental Science, Jyväskylä, Finland
Biology Centre of the Academy of Sciences of the Czech Republic, v.v.i., Institute of Hydrobiology, České Budějovice, Czech Republic
Uppsala University, Erken Laboratory, Norrtälje, Sweden
Stefan Bertilsson is an editor of PLOS ONE. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.
Contributed data: ESL JP KS PZ SB SP YY. Conceived and designed the experiments: AE. Analyzed the data: AE SD CR. Wrote the paper: AE SD SB ESL.