Table 2 List of specialist organisations websites searched

Defra Online Databases

Environment Agency

NERC Open Research Archive

Forestry Commission/Forestry Research

Centre for Ecology and Hydrology

Natural England

Countryside Council for Wales

Scottish Natural Heritage

Scottish Environment Agency

Northern Ireland Environment Agency

European Environment Agency

European Commission Joint Research Centre

Finnish Environment Agency

Ministry of Agriculture and Forestry (Finland)

Swedish Environment Agency

Danish Environment Agency

Ministry of Food, Agriculture and Fisheries (Denmark)

Government Norway Portal

Flemish Environment Agency

Ministry of Food, Agriculture and Agri-food Canada

Environment Canada

US Department of Agriculture

US Environment Protection Agency

Agency of the Environment and Energy (France)

Federal Environment Agency (Germany)

Federal Ministry of Food, Agriculture and Consumer Protection (Germany)

Netherlands Environmental Assessment Agency

Department for the Environment, Transport, Energy and Communication (Switzerland)

Environmental Protection Authority (New Zealand)

Ministry of Agriculture and Fisheries (New Zealand)

Food and Agriculture Organisation of the United Nations

Ecologic Institute and EU Cost (European Cooperation in Science and Technology)