1. Game and Wildlife Conservation Trust; Fordingbridge Hants UK
2. Farming Systems Ecology; Wageningen University; Wageningen The Netherlands
3. Institute for Environmental Sciences; University of Koblenz-Landau; Landau Germany
4. Institute of Life Sciences; Scuola Superiore Sant'Anna; Pisa Italy
5. Agroscope Reckenholz-Tänikon Research Station; Zurich Switzerland