| Affiliation: | Centre for Ecology and Hydrology, Monks Wood, Abbots Ripton, Huntingdon PE28 2LS, UK;;Community and Conservation Ecology Group, University of Groningen, PO Box 14, 9750 AA Haren, the Netherlands;;Department of Ecology and Evolutionary Biology, Brown University, Providence, RI 02912, USA;;Department of Botany, University of Toronto, 25 Willcocks St, Toronto, Ontario, Canada M5S 3B2;and;Cambridge Coastal Research Unit, Department of Geography, University of Cambridge, Downing Place, Cambridge CB2 3EN, UK |
