1. Department of Renewable Resources University of Alberta Edmonton Alberta Canada
2. Department of Earth Sciences and Earth System Research Center, Institute for the Study of Earth, Oceans and Space University of New Hampshire Durham New Hampshire USA
3. Department of Geography and Environmental Management University of Waterloo Waterloo Ontario Canada
4. Limnology/Department of Ecology and Genetics Uppsala University Uppsala Sweden
5. Ecohydrology and Biogeochemistry Group, Institute of Landscape Ecology University of Münster Münster Germany
6. Department of Earth and Planetary Sciences and GEOTOP McGill University Montreal Quebec Canada