Heikkinen, Risto K; Juha PyryauthorNatural Environment Centre, Finnish Environment Institute, P.O. Box 140, FI-00251 Helsinki, Finland; Raimo VirkkalaauthorNatural Environment Centre, Finnish Environment Institute, P.O. Box 140, FI-00251 Helsinki, Finland; Greta BocediauthorInstitute of Biological and Environmental Sciences, University of Aberdeen, Zoology Building, Tillydrone Avenue, Aberdeen AB24 2TZ, UK; Mikko KuussaariauthorNatural Environment Centre, Finnish Environment Institute, P.O. Box 140, FI-00251 Helsinki, Finland; Oliver SchweigerauthorHelmholtz Centre for Environmental Research UFZ, Department of Community Ecology, Theodor-Lieser-Strae 4, D-06120 Halle, Germany; Josef SetteleauthorHelmholtz Centre for Environmental Research UFZ, Department of Community Ecology, Theodor-Lieser-Strae 4, D-06120 Halle, Germany; Justin M.J. TravisauthorInstitute of Biological and Environmental Sciences, University of Aberdeen, Zoology Building, Tillydrone Avenue, Aberdeen AB24 2TZ, UK