1. Institute for Landscape Ecology and Resources Management (ILR), Research Centre for BioSystems, Land Use and Nutrition (iFZ); Justus Liebig University Giessen; Giessen Germany
2. Global Institute for Water Security; University of Saskatchewan; Saskatoon Canada
3. Centre for International Development and Environmental Research (ZEU); Justus Liebig University Giessen; Senckenbergstraße 3 35392 Giessen Germany