Population information

Order name Anseriformes
Family name Anatidae
Scientific name Aythya marila Common name Greater Scaup
Population name marila, Western Siberia/Black Sea & Caspian
Breeding range W Siberia Non-breeding range Black & Caspian Seas
Red List Category Least Concern
Ramsar regions Asia Europe
Notes

Conservation Framework

Conservation framework Notes
AEWA
CAF Action Plan
EUBD
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 1 0 0 50,000 50,000 [R399]
WPE 2 1990 1995 100,000 200,000 [R578]
WPE 3 1990 1995 100,000 200,000 [R578]
WPE 4 1990 1995 100,000 200,000 [R578]
WPE 5 1990 1995 100,000 200,000 Best guess [R578]
CSR 4 1990 1995 100,000 200,000 Best guess [R578]
CSR 5 1990 1995 100,000 200,000 Best guess [R578]
CSR 6 1970 2005 100,000 200,000 Best guess [S8556] [R578] [R1365]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 0 0 Unknown
WPE 2 0 0 Unknown
WPE 3 0 0 Unknown
WPE 4 0 0 Unknown
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 [T6549]

Population 1% level

Publication Yearset 1 percent Note
WPE 1 1994 500
WPE 2 1997 1500
WPE 3 2002 1500
WPE 4 2006 1500
WPE 5 2012 1400
CSR 4 0 -1
CSR 5 0 -1
CSR 6 0 -1

References

  • R399 - Laursen, K. 1992. New figures of seaduck winter populations in the Western Palearctic. IWRB Seaduck Bulletin No. 1. January 1992.
  • 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
  • R1365 - Wetlands International, International Waterbird Census, unpublished data, 2014.
  • 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. Temporary URL: https://www.dropbox.com/sh/r76f4eyuhzu65co/AADzzQkhySsUDsmwFJUcHs91a?dl=0

Notes

  • S8556 - Scott & Rose (1996) provides justification of the current estimate. Since then the maximum count in the Black Sea region was 23,444 individuals in 2005 and 43,879 indiividuals in 1997 in the Caspian. There is insufficient information to revise the estimate.
  • T6549 - There is insufficient data available to assess the trend of this population.



Copyright Wetlands International 2012

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