1. Marine Mammal Research Unit Department of Zoology Institute for the Oceans and Fisheries University of British Columbia 2202 Main Mall, Vancouver BC Canada, V6T1Z4
2. Department of Biology Center for Biodiversity Dynamics Norwegian University of Science and Technology (NTNU) Trondheim N‐7491 Norway
3. Research Group Evolutionary Ecology of Variation Max Planck Institute for Ornithology Eberhard‐Gwinner‐Straße, 82319 Seewiesen Germany
4. Behavioural Ecology Department of Biology Ludwig‐Maximilians University of Munich Grosshadernerstrasse 2 82152 Planegg‐Martinsried Germany
5. Department of Biological Sciences North Dakota State University Fargo ND 58108‐6050 USA
6. Department of Evolutionary Ecology Estación Biológica de Doñana–CSIC c/ Americo Vespucio, s/n, 41092 Seville Spain
7. Evolution & Ecology Research Centre School of Biological, Earth and Environmental Sciences University of New South Wales Sydney NSW 2052 Australia
8. Département des Sciences Biologiques Université du Québec A Montréal, CP 8888, Succursale centre‐ville Montréal QC Canada, H3C3P8
9. Department of Evolutionary Biology Bielefeld University Morgenbreede 45, 33615 Bielefeld Germany
10. Population Ecology Institute of Ecology Friedrich Schiller University, Dornburger Str. 159, 07743 Jena Germany
11. Department of Biology Center for Ecology, Evolution, and Behavior University of Kentucky Lexington KY 40506‐0225 USA