1. Ecosystems Services and Management Program; International Institute for Applied Systems Analysis (IIASA); Schlossplatz 1 Laxenburg A-2361 Austria
2. Systems Analysis Integrated Assessment and Modelling; Swiss Federal Institute of Aquatic Science and Technology (EAWAG); Ueberlandstr. 133 Dübendorf CH-8600 Switzerland
3. Department of Soil Science; Faculty of Natural Sciences; Comenius University in Bratislava; Bratislava 842 15 Slovak Republic
4. Laboratoire des Sciences du Climat et de l'Environnement; IPSL; 91190 Gif-sur-Yvette France
5. Department of Biology; University of Antwerp; Universiteitsplein 1 Wilrijk B-2610 Belgium
6. Global Ecology Unit CREAF-CEAB-UAB; CSIC; Cerdanyola del Vallés Catalonia 08193 Spain
7. CREAF; Cerdanyola del Vallés Catalonia 08193 Spain