Population information

Nom ordre Anseriformes
Nom famille Anatidae
Nom scientifique Branta canadensis Nom courant Canada Goose
Nom population occidentalis Dusky
Aire de reproduction Copper River Delta, Alaska Aire de non-reproduction Willamette & Colombia river valleys, Oregon & Washington
Catégorie de la Liste Rouge Least Concern
Regions Ramsar North America
Notes

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 1 0 0 14,800 14,800 No quality assessment [R671]
WPE 2 0 0 13,600 13,600 No quality assessment [R657]
WPE 3 0 0 17,300 17,300 No quality assessment [R651]
WPE 4 0 0 21,800 21,800 No quality assessment [R656]
WPE 5 2011 2011 11,800 11,800 Expert opinion [R1180]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 1982 1992 STA No quality assessment [R671]
WPE 2 1986 1996 STA No quality assessment [R657]
WPE 3 1991 2001 STA No quality assessment [R651]
WPE 4 1991 2001 STA No quality assessment [R651]
WPE 5 2002 2011 DEC No quality assessment [R1180]

Population 1% level

Publication Yearset 1 percent Note
WPE 1 1994 150
WPE 2 1997 140
WPE 3 2002 170
WPE 4 2006 220
WPE 5 2012 120

References

  • R671 - USFWS and CWS. 1992. 1992 status of waterfowl and fall flight forecast. Usfws Migratory Bird Management Office.
  • R657 - U.S. Fish and Wildlife Service and Canadian Wildlife Service. 1996. Waterfowl Population Status 1996. USFWS, Washington DC.
  • R651 - U.S. Fish and Wildlife Service. 2001. Waterfowl Population Status, 2001. US Department of the Interior,Washington, D.C. 50pp.
  • R656 - U.S. Fish and Wildlife Service. 2005. Waterfowl Population Status, 2005. US Department of the Interior,Washington, D.C. http://www.fws.gov/migratorybirds/reports/status05/final_status_05.pdf
  • R1180 - U.S. Fish and Wildlife Service. 2011d. Waterfowl population status, 2011. U.S. Department of the Interior, Washington, D.C. USA.
  • R1534 - U.S. Fish and Wildlife Service. 2014. Waterfowl population status, 2014. 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