Population information

Order name Anseriformes
Family name Anatidae
Scientific name Melanitta americana Common name Black Scoter
Population name americana, NW North America
Breeding range Alaska Non-breeding range Pacific Coast N America
Red List Category Near Threatened
Ramsar regions North America
Notes The British Ornithologists' Union has accepted the separation of nigra and americana as different species.

Conservation Framework

Conservation framework Notes
No conservation frameworks
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 3 0 0 80,000 120,000 No quality assessment [R580]
WPE 4 0 0 100,000 130,000 No quality assessment [S5669] [R89]
WPE 1 0 0 -1 -1 No quality assessment
WPE 2 0 0 -1 -1 No quality assessment
WPE 5 0 0 160,000 160,000 Expert opinion [R1248]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 3 1990 2000 DEC No quality assessment [R580]
WPE 4 1990 2000 DEC No quality assessment [R580]
WPE 1 0 0 Unknown No quality assessment
WPE 2 0 0 Unknown No quality assessment
WPE 5 2004 2009 INC No quality assessment [T6159] [R1248]

Population 1% level

Publication Yearset 1 percent Note
WPE 3 2002 1000
WPE 4 2006 1150
WPE 1 -1 -1 Not Set
WPE 2 -1 -1 Not Set
WPE 5 2012 1600

References

  • R580 - Sea Duck Joint Venture Management Board. 2001. Sea Duck Joint Venture Strategic Plan: 2001 - 2006. SDJV Continental Technical Team. Unpubl. rept. (c/o USFWS, Anchorage, Alaska; CWS Sackville, New Brunswick). 14 pp. + appendices.
  • R89 - Bowman, Tim, in litt. 2005.
  • R1248 - Stehn, R., Platte, R. and Anderson, P. 2010. Pacific Black Scoter Breeding Survey. Unpublished report, U.S. Fish and Wildlife Service, Anchorage, Alaska. URL: http://seaduckjv.org/studies/pro3/pr96.pdf

Notes

  • S5669 - 90: intensive, recent Black-Scoter specific surveys by USFWS resulted in this estimate.
  • T6159 - Survey data indicate long-term decline since 1970's but stable population since 2004.



Copyright Wetlands International 2012

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