Population information

Order name Anseriformes
Family name Anatidae
Scientific name Melanitta americana Common name Black Scoter
Population name americana, NE North America
Breeding range E Canada Non-breeding range Atlantic S Canada - N USA
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 0 100,000 100,000 [R84]
WPE 4 0 0 130,000 200,000 [S5667] [R84]
WPE 1 0 0 -1 -1
WPE 2 0 0 -1 -1
WPE 5 0 0 250,000 250,000 Expert opinion [S8151] [R84] [R1247]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 3 1955 1992 DEC [R84]
WPE 4 1955 1992 DEC [R84]
WPE 1 0 0 Unknown
WPE 2 0 0 Unknown
WPE 5 0 0 DEC [R1247]

Population 1% level

Publication Yearset 1 percent Note
WPE 3 2002 1000
WPE 4 2006 1650
WPE 1 0 -1
WPE 2 0 -1
WPE 5 2012 2500

References

  • R84 - Bordage, D. and J.L. Savard. 1995. Black Scoter (Melanitta nigra). In The Birds of North America, No. 177 (A. Poole and F. Gill, eds.). The Birds of North America, Inc., Philadelphia, PA.
  • R1247 - New Jersey Audubon: Avalon Sea Watch data. Unpublished data.

Notes

  • S5667 - Uncertain estimate of 25,800 pairs in 85 (77,400 individuals), increased to 100,000 by 86 to reflect improved state of knowledge. >200,000 stage on St Lawrence River during migrations (J-P Savard in litt). 85 estimates of brood abundance 43,500 pairs (130,000 birds). Estimated number of moulting males in James Bay (90,000). Assuming an extra 10,000 birds moulting elsewhere, 100,000 males yielding 200,000 birds.
  • S8151 - Estimates of population size are based on maximum counts from recent migration surveys and on estimates of molting males extrapolated to include females and young.



Copyright Wetlands International 2012

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