1. Environmental Change Research Centre; Department of Geography; University College London; London U.K
2. Lake Research Group; Department of Bioscience; Aarhus University; Silkeborg Denmark
3. Section for Ecoinformatics and Biodiversity; Department of Bioscience; Aarhus University; Aarhus Denmark
4. Institute of Environmental Change and Society; 523 Research and Innovation Centre; University of Regina; Regina SK Canada
5. School of Geography, Earth & Environmental Sciences; University of Birmingham; Birmingham U.K