Population information

Nom ordre Anseriformes
Nom famille Anatidae
Nom scientifique Branta bernicla Nom courant Brent Goose
Nom population nigricans, E Pacific (non-bre)
Aire de reproduction Low Arctic North America Aire de non-reproduction E Pacific coast, mainly in Mexico
Catégorie de la Liste Rouge Least Concern
Regions Ramsar North America
Notes This population was treated as a single larger population in WPE1.

Réseau de conservation

Réseau de conservation Notes
Pas des Réseaux de conservation
Note:

Taille de population

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 2 0 0 126,500 126,500 No quality assessment [R657]
WPE 3 0 0 136,200 136,200 No quality assessment [R655]
WPE 4 0 0 136,200 136,200 No quality assessment [R655]
WPE 5 2011 2011 147,000 148,000 Expert opinion [R1180]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 2 1986 1996 STA No quality assessment [R657]
WPE 3 1992 2001 INC No quality assessment [R651]
WPE 4 1992 2001 INC No quality assessment [R651]
WPE 5 2002 2011 INC No quality assessment [R1180]

Population 1% level

Publication Yearset 1 percent Note
WPE 2 1997 1270
WPE 3 2002 1400
WPE 4 2006 1400
WPE 5 2012 1500

References

  • R657 - U.S. Fish and Wildlife Service and Canadian Wildlife Service. 1996. Waterfowl Population Status 1996. USFWS, Washington DC.
  • R655 - U.S. Fish and Wildlife Service. 2002d. Waterfowl Population Status, 2002. US Department of the Interior,Washington, D.C. 50pp.
  • R651 - U.S. Fish and Wildlife Service. 2001. Waterfowl Population Status, 2001. US Department of the Interior,Washington, D.C. 50pp.
  • R1180 - U.S. Fish and Wildlife Service. 2011d. Waterfowl population status, 2011. U.S. Department of the Interior, Washington, D.C. USA.

Notes




Copyright Wetlands International 2012

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