Population information

Nom ordre Anseriformes
Nom famille Anatidae
Nom scientifique Cygnus columbianus Nom courant Tundra Swan
Nom population bewickii, Northern Siberia/Caspian
Aire de reproduction N Siberia Aire de non-reproduction Caspian & Turkey
Catégorie de la Liste Rouge Least Concern
Regions Ramsar Asia Europe
Notes Considered separate from Cygnus columbianus, following Birdlife 2012 review.

Réseau de conservation

Réseau de conservation Notes
AEWA
CAF Action Plan
EUBD
Note:

Taille de population

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 4 0 0 1,000 1,000 No quality assessment [R616]
WPE 1 1987 1991 6,500 6,500 No quality assessment [R519]
WPE 2 1990 1995 500 500 No quality assessment [R578]
WPE 3 1990 1995 500 500 No quality assessment [R578]
WPE 5 1990 2000 1,000 1,000 Expert opinion [R616]
CSR 4 1990 2000 1,000 1,000 Expert opinion [R616]
CSR 5 1990 2000 1,000 1,000 Expert opinion [R616]
CSR 6 2010 2010 1,000 1,000 Expert opinion [R616]
CSR 7 2012 2016 1,000 8,400 Expert opinion [S8871] [R1564]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 4 1988 2000 INC No quality assessment [R616]
WPE 1 0 0 Unknown No quality assessment
WPE 2 0 0 Unknown No quality assessment
WPE 3 0 0 Unknown No quality assessment
WPE 5 1990 2000 STA No idea [R66]
CSR 4 1990 2000 STA No idea [R66]
CSR 5 1990 2000 STA No idea [R66]
CSR 6 2003 2012 Unknown No idea
CSR 7 2006 2015 INC Reasonable [T6880] [R1548]

Population 1% level

Publication Yearset 1 percent Note
WPE 4 2006 10
WPE 1 1994 5
WPE 2 1997 5
WPE 3 2002 5
WPE 5 2012 10
CSR 4 -1 -1 Not Set
CSR 5 -1 -1 Not Set
CSR 6 -1 -1 Not Set
CSR 7 2018 30

References

  • R616 - Syroechkovski, E.E., Jnr. 2002. Distribution and population estimates for swans in the Siberian arctic in the 1990s. In Proceedings of the Fourth International Swan Symposium, 2001 (ed. E.C. Rees, S.L. Earnst and J. Coulson).
  • R519 - Perennou, C.P., Mundkur, T. and Scott, D.A. 1994. The Asian Waterfowl Census 1987-1991: distribution and status of Asian waterfowl. IWRB Spec. Publ. No. 24; AWB Spec. Publ. No. 86. Slimbridge, UK and Kuala Lumpur, Malaysia.
  • R578 - Scott, D.A. and Rose, P.M. 1996. Atlas of Anatidae populations in Africa and western Eurasia. Wetlands International Publication No. 41. Wetlands International, Wageningen, NL. 336 pp.
  • R66 - BirdLife International Website 2002
  • R1564 - Vangeluwe, D., Rozenfeld, S. & Kazantzidis, S. 2016. The odyssey of the Bewick's Swan - another route to Greece. Swan News 12:10-11.
  • R1548 - Wetlands International (2017) Flyway trend analyses based on data from the African-Eurasian Waterbird Census from the period of 1967-2015. Ede, The Netherlands: Wetlands International. URL: http://iwc.wetlands.org/index.php/aewatrends

Notes

  • S8871 - IWC count totals for 2012-2015 with data from Vaneguwe et al. (2016) for 2016. Their radio-telemetry studies raise questions concerning the population definitions for this species.
  • T6880 - IWC trend analysis based on data only from TR but also the IWC count totals taking into account data from all other countries show very strong increase in the local wintering population (Wetlands International 2017). However, the population assignment of the birds wintering in the East Mediterranean is waiting for clarification from reviewing the results of telemetry and neck banding studies.



Copyright Wetlands International 2012

Citation: Wetlands International (). "Waterbird Population Estimates" . Retrieved from wpe.wetlands.org on