Branquart, E.Belgian Biodiversity Platform, Département de l'Etude du Milieu Naturel et Agricole Gembloux Belgium
Brunel, S.European and Mediterranean Plant Protection Organization, Paris, France
Holt, J.Centre for Environmental Policy, Imperial College London, UK
Hulme, Philip E.The Bio Protection Research Centre, Lincoln University, Canterbury New Zealand
MacLeod, A.Food and Environment Research Agency, UK
Pergl, JanInstitute of Botany, Academy of Sciences of the Czech Republic, Průhonice, Czech Republic
Petter, F.European and Mediterranean Plant Protection Organization, Paris, France
Pyšek, PetrInstitute of Botany, Academy of Sciences of the Czech Republic, Průhonice, Czech Republic - Department of Ecology, Faculty of Science, Charles University in Prague, Czech Republic
Schrader, G.Julius Kühn Institut, Federal Research Centre for Cultivated Plants, Institute for National and International Plant Health, Braunschweig Germany
Sissons, A.Andrea Sissons, Canadian Food Inspection Agency, Ottawa, Canada
Starfinger, U.Julius Kühn Institut, Federal Research Centre for Cultivated Plants, Institute for National and International Plant Health, Braunschweig Germany
Schaffner, UrsCABI Europe Switzerland, Delémont Switzerland
English
Assessing the potential environmental impact of alien plants and plant pests is notoriously difficult. New protocols have been developed in the framework of the EC project PRATIQUE to provide guidance on environmental impact assessment in the EPPO pest risk analysis (PRA) decision-support scheme and enhance consistency between risk assessors and risk ratings for different pests. A set of questions with rating guidance and examples is provided, and individual scores are summarized into final scores, using a hierarchy of risk matrices, to assess current and potential environmental impacts. Two separate protocols are available: for alien plants and for other pests. These protocols could also be used to assess environmental impact in other PRA schemes as well as to assign alien species to regional black lists or to prioritize species for management decisions.