1. University of Applied Sciences Western Switzerland, hepia Geneva Technology, Architecture and Landscape; 1254 Jussy Geneva Switzerland
2. Institute for Environmental Sciences; Geneva University; 1227 Carouge Switzerland
3. IRSTEA; UR Maly; F-69626 Lyon Villeurbanne France
4. Department of Agroecology and Environment; ISARA Lyon (Member of the University of Lyon); F-69364 Villeurbanne France
5. CNRS; UMR5023 “Laboratory of Ecology of Natural and Anthropised Hydrosystems”; University Lyon 1; University of Lyon; Villeurbanne F-69622 France