[1] Univ Gottingen, Dept Agr Econ & Rural Dev, Pl Gottinger Sieben 5, D-37073 Gottingen, Germany
[2] Vrije Univ Amsterdam, Inst Environm Studies IVM, Boelelaan 1087, NL-1081 HV Amsterdam, Netherlands
[3] Univ Illinois, Dept Nat Resources & Environm Sci, Urbana, IL USA
[4] Swedish Univ Agr Sci, Dept Landscape Architecture Planning & Management, Sundsvagen 4, S-23053 Alnarp, Sweden
[5] Univ Oberta Catalunya, Internet Interdisciplinary Inst IN3, Av Carl Friedrich Gauss,Parc Mediterrani Tecnol, Barcelona 08860, Spain
[6] Univ Oberta Catalunya, Estudis Econ & Empresa, Av Tibidabo 39-43, Barcelona 08035, Spain
[7] Cent Univ Catalonia UVic UCC, Univ Vic, Chair Agroecol & Food Syst, C Laura 13, Vic 08500, Spain
[8] Carl von Ossietzky Univ Oldenburg, Landscape Ecol Grp, IBU, POB 2503, D-26111 Oldenburg, Germany
[9] Univ Kassel, Fac Organ Agr Sci, Steinstr 19, D-37213 Witzenhausen, Germany
[10] Univ Helsinki, Helsinki Inst Sustainabil Sci, Helsinki, Finland
[11] Univ Helsinki, Fac Biol & Environm Sci, Ecosyst & Environm Res Program, POB 65, Helsinki 00014, Finland
[12] Univ Helsinki, Fac Agr & Forestry Sci, Dept Econ & Management, POB 65, Helsinki 00014, Finland
[13] Helmholtz Zentrum Umweltforsch UFZ, Dept Nat Schutzforsch, Permoserstr 15, D-04318 Leipzig, Germany