Senior Editor and Executive Editor: Journal of Applied Ecology (April 2004 – April 2008). Editorial Boards: Journal Animal Ecology (1989-1995, 1998-2004); Aquatic Ecology (1999-2004), Freshwater Biology (2002- 2009). Co-Editor Biology and Environment: Proceedings of the Royal Irish Academy (1993-to 2001). Academic Referee for over 35 international journals. Reviewer for the UN Environment Programme, Global Biodiversity Assessment (1995/96). Reviewer for the Open University for teaching materials and publications in ecology. Book reviewer for Journal Animal Ecology, Journal of Biogeography, Journal of North American Benthological Society, Trends in Ecology and Evolution, Journal of Ecology, and the Institute of Biology. Reviewer of academic book proposals for Chapman and Hall, Cambridge University Press and Oxford University Press.