Population information

Nom ordre Podicipediformes
Nom famille Podicipedidae
Nom scientifique Rollandia rolland Nom courant White-tufted Grebe
Nom population chilensis
Aire de reproduction S South America Aire de non-reproduction Coastal S South America
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 [R234]
WPE 2 1987 1991 100,000 100,000 [R497]
WPE 3 1987 1991 100,000 100,000 [R497]
WPE 4 1987 1991 100,000 100,000 [R497]
WPE 5 1987 1991 100,000 100,000 [R497]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 1975 1980 STA [R234]
WPE 2 1985 1995 STA [R571]
WPE 3 1990 2000 STA [R570]
WPE 4 1990 2000 STA [R570]
WPE 5 1990 2000 STA [R570]

Population 1% level

Publication Yearset 1 percent Note
WPE 1 1994 1000
WPE 2 1997 1000
WPE 3 2002 1000
WPE 4 2006 1000
WPE 5 2012 1000

References

  • R234 - Fjelds?, J. 1981. Comparative ecology of Peruvian grebes - A study of the mechanisms of evolution of ecological isolation. Videnskabelige Meddelelser fra dansk naturhistorisk Forening 144: 125-249
  • R497 - O'Donnel, C.F.J. and Fjelds?, J. 1995. Grebes: a global action plan for their conservation. IUCN.
  • 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 Unpublished information on Southern South American waterbirds.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 Unpublished information on Southern South American waterbirds.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