1 Department of Ecology, Faculty of Science, Charles University, Prague, Czech Republic. marek.stibal@natur.cuni.cz.
2 School of Geography, Queen Mary University of London, London, UK.
3 Interface Geochemistry, GFZ German Research Centre for Geosciences, Potsdam, Germany.
4 Institute of Biological, Rural and Environmental Sciences, Aberystwyth University, Aberystwyth, UK.
5 School of Biological Sciences, Washington State University, Pullman, WA, USA.
6 Department of Animal Taxonomy and Ecology, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland.
7 Department of Terrestrial Biodiversity, Norwegian Institute for Nature Research, Trondheim, Norway.
8 Agroscope, Molecular Diagnostics, Genomics and Bioinformatics and Swiss Institute of Bioinformatics, Wädenswil, Switzerland.
9 Department of Microbiology, University of Tennessee, Knoxville, TN, USA.
10 Stream Biofilm and Ecosystem Research Laboratory, School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.
11 Centre for Polar Ecology, Faculty of Science, University of South Bohemia, České Budějovice, Czechia.
12 Department of Environmental Science, Aarhus University, Roskilde, Denmark.