[1] James Hutton Inst, Social Econ & Geog Sci, Cragiebuckler AB15 8QH, Scotland
[2] Univ Bucharest, Dept Syst Ecol & Sustainabil, 91-95 Spl Independentei, Bucharest 050095, Romania
[3] Hungarian Acad Sci, Ctr Ecol Res, Inst Ecol & Bot, Alkotmany U 2-4, H-2163 Vacratot, Hungary
[4] Swedish Univ Agr Sci, Dept Aquat Sci & Assessment, Box 7050, S-75007 Uppsala, Sweden
[5] Slovak Acad Sci, Inst Landscape Ecol, Stefanikova 3, Bratislava 81499, Slovakia
[6] Estonian Univ Life Sci, Inst Agr & Environm Sci, Kreutzwaldi 5, EE-51006 Tartu, Estonia
[7] James Hutton Inst, Informat & Computat Sci, Cragiebuckler AB15 8QH, Scotland
[8] Finnish Environm Inst SYKE, Programme Environm Informat, Survontie 9a, Jyvaskyla 40500, Finland
[9] Univ Autonoma Barcelona, Ctr Res Ecol & Forestry Applicat CREAF, E-08193 Catalonia, Cerdanyola Del, Spain
[10] Finnish Environm Inst SYKE, Freshwater Ctr, POB 140, Helsinki 00251, Finland
[11] Res Inst Nat & Forest INBO, Havenlaan 88 Bus 73, B-1000 Brussels, Belgium
[12] Univ Reading, Sch Agr Policy & Dev, Agr Bldg, Reading RG6 6AR, Berks, England