1. Department of Theoretical and Computational Ecology, Institute for Biodiversity and Ecosystems Dynamics (IBED) University of Amsterdam Amsterdam The Netherlands
2. Conservation Ecology Group, Groningen Institute for Evolutionary Life Sciences (GELIFES) University of Groningen Groningen The Netherlands
3. Department of Vertebrate Zoology, Biological Faculty Lomonosov Moscow State University Moscow The Russian Federation
4. NIOZ Royal Netherlands Institute for Sea Research Department of Coastal Systems and Utrecht University Texel The Netherlands
5. Institute of Ecology and Environmental Science Kazan Federal University Kazan The Russian Federation
6. Swiss Ornithological Institute Sempach Switzerland