1. Chair in Global Flyway Ecology, Conservation Ecology Group; Groningen Institute for Evolutionary Life Sciences (GELIFES); University of Groningen; PO Box 11103 9700 CC Groningen The Netherlands
2. Department of Marine Ecology; NIOZ Royal Netherlands Institute for Sea Research; PO Box 59 1790 AB Den Burg Texel The Netherlands
3. Centre d'Ecologie Fonctionnelle et Evolutive; UMR 5175; Montpellier France
4. Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering; Institute of Biodiversity Science; Fudan University; Shanghai 200433 China
5. Global Flyway Network; PO Box 3089 Broome WA 6725 Australia
6. Key Laboratory for Biodiversity Science and Ecological Engineering; Beijing Normal University; Beijing 100875 China
7. College of Nature Conservation; Beijing Forestry University; Beijing 100083 China
8. 1261 Dovedale Road RD 2 Wakefield Nelson 7096 New Zealand