Population information

Nom ordre Anseriformes
Nom famille Anatidae
Nom scientifique Cygnus melancoryphus Nom courant Black-necked Swan
Nom population South America
Aire de reproduction S & Central Chile, Argentina, Uruguay Aire de non-reproduction Some northward movement to Paraguay, SE Brazil
Catégorie de la Liste Rouge Least Concern
Regions Ramsar Neotropics
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 25,000 100,000 No quality assessment [R15]
WPE 2 0 0 25,000 100,000 No quality assessment [R15]
WPE 3 0 0 25,000 100,000 No quality assessment [R15]
WPE 4 0 0 25,000 100,000 No quality assessment [R15]
WPE 5 0 0 25,000 100,000 Best guess [R15]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 1982 1992 STA No quality assessment [R119]
WPE 2 1985 1995 DEC No quality assessment [R571]
WPE 3 1990 2000 STA No quality assessment [R570]
WPE 4 1990 2000 STA No quality assessment [R570]
WPE 5 1990 2000 STA No quality assessment [R570]

Population 1% level

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

References

  • R15 - Antas, P.T.Z. In litt. 1993. Unpublished data concerning South American waterbirds.
  • R119 - Canevari, P. (pers. comm.). 1993. Unpublished information from Neotropical Wetlands Program.
  • R571 - Schlatter, R. (pers. comm.). 1996. Unpublished information on Southern South American waterbirds.
  • R570 - Schlatter, R. (In litt.). 2002. Unpublished information on Southern South American waterbirds.

Notes




Copyright Wetlands International 2012

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