Affiliation: | 1. School of Environmental Sciences, University of Liverpool, Liverpool L69 3GP, UK;2. Animal Ecology Group, Centre for Ecological and Evolutionary Studies, University of Groningen, PO Box 11103, 9700 CC Groningen, The Netherlands;3. Department of Marine Ecology, Royal Netherlands Institute for Sea Research (NIOZ), PO Box 59, 1790 AB Den Burg, Texel, The Netherlands;4. Université de Strasbourg, IPHC–DEPE, 23 rue Becquerel, 67087 Strasbourg, France;5. CNRS, UMR7178, 67037 Strasbourg, France;6. Centre for Ornithology, School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK |