Population information

Order name Anseriformes
Family name Anatidae
Scientific name Aythya marila Common name Greater Scaup
Population name nearctica, E Asia
Breeding range E Siberia Non-breeding range E Asia
Red List Category Least Concern
Ramsar regions Asia
Notes Now listed by BOU as Aythya marila nearctica. (WPE4). Proposed namemariloides, sometimes applied to NE Asian and/or North American populations, is invalid, as it was attached to specimens of A. affinis; now replaced by name nearctica.

Conservation Framework

Conservation framework Notes
EAAF Partnership
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 1 1987 1991 100,000 1,000,000 [R519]
WPE 2 1987 1991 100,000 1,000,000 [R519]
WPE 3 0 0 200,000 400,000 [R455]
WPE 4 0 0 200,000 300,000 [S5547] [R455]
WPE 5 0 0 200,000 300,000 [S8114] [R455]

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 0 0 Unknown No idea

Population 1% level

Publication Yearset 1 percent Note
WPE 1 0 -1
WPE 2 0 -1
WPE 3 2002 3000
WPE 4 2006 2500
WPE 5 2012 2400

References

  • 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.
  • R455 - Miyabayashi, Y. and Mundkur, T. 1999. Atlas of Key Sites for Anatidae in the East Asian Flyway. Wetlands International ? Japan ? Tokyo, and Wetlands International ? Asia Pacific, Kuala Lumpur. 148 pp.

Notes

  • S5547 - 466: 10 000 – 30 000 winter along the south coast of S Korea.
  • S8114 - Moores, N. In litt. 2005: 10,000 ? 30,000 winter along the south coast of S Korea. Moores, N. In litt. 2012: Numbers post 2010 now suspected to be much lower than this, but data inadequate



Copyright Wetlands International 2012

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