Assessing exchange rates of individuals between biogeographical populations of East Asian goose and swan species
Effective conservation management of migratory waterbirds requires defining flyway populations sharing breeding, moulting, staging and wintering grounds discrete in time and/or space from others of the same species. The migration paths of 619 tagged and tracked individuals of 10 East Asian goose and swan populations showed no exchanges between the traditionally defined flyways for nine of them. Two of 22 tracked adult Greylag Geese Anser anser moved between winter quarters in India and China, confirming that annual fluctuations in their counts reflect winter emigration/immigration as well as the balance of breeding success/mortality that governs annual abundance in closed populations. The absence of such changes in seven other species indicated restricted population exchange, giving confidence that monitoring wintering abundance and breeding success are reliable means of tracking their population trends and modelling population dynamics.
Authors
- Nyambayar Batbayar (ORCID: https://orcid.org/0000-0002-9138-9626)
- Dehai Gu (ORCID: https://orcid.org/0009-0009-6915-1599)
- Yanbo Xie (ORCID: https://orcid.org/0000-0002-0358-9426)
- Iderbat Damba (ORCID: https://orcid.org/0000-0001-7274-3960)
- Diana Solovyeva (ORCID: https://orcid.org/0000-0001-5076-0305)
- Qingshan Zhao (ORCID: https://orcid.org/0000-0002-3767-1102)
- Anthony David Fox (ORCID: https://orcid.org/0000-0001-8083-7633)
- Inga Bysykatova‐Harmey (ORCID: https://orcid.org/0000-0002-0766-1587)
- Tetsuo Shimada (ORCID: https://orcid.org/0000-0002-4904-1423)
- Hongbin Li (ORCID: https://orcid.org/0000-0001-7715-0072)
- Junjian Zhang (ORCID: https://orcid.org/0009-0006-0643-6579)
- Hansoo Lee (ORCID: https://orcid.org/0000-0003-3347-570X)
- Fanjuan Meng (ORCID: https://orcid.org/0009-0004-4968-2302)
- Sonia Rozenfeld
Institutions
- University of Science and Technology of China (CN)
- Russian Academy of Sciences (RU)
- Mongolian Academy of Sciences (MN)
- Mongolian University of Life Sciences (MN)
- Aarhus University (DK)
- Korea Aerospace Research Institute (KR)
- National Institute of Ecology (IN)
- Miyagi Prefectural Hospital Organization (JP)
- Institute of Biological Problems of the North (RU)
- Research Center for Eco-Environmental Sciences (CN)
- Severtsov Institute of Ecology and Evolution (RU)
- Federal State Budgetary Institution "Center for Expertise and Quality Control of Medical Care" (RU)
- University of Chinese Academy of Sciences (CN)
Publication Details
- Journal
- Ibis
- Published
- 2025-11-26
- DOI
- https://doi.org/10.1111/ibi.70019
- Primary Topic
- Avian ecology and behavior
- Type
- article
- Field-Weighted Citation Impact
- 0.00