Population information

Order name Anseriformes
Family name Anatidae
Scientific name Anas undulata Common name Yellow-billed Duck
Population name undulata, E Africa
Breeding range East Africa Non-breeding range
Red List Category Least Concern
Ramsar regions Africa
Notes

Conservation Framework

Conservation framework Notes
No conservation frameworks
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 1 0 0 10,000 100,000 [R214]
WPE 2 1990 1995 50,000 100,000 [R578]
WPE 3 2001 2001 20,000 60,000 [R190]
WPE 4 2001 2001 20,000 60,000 [R190]
WPE 5 2001 2001 20,000 60,000 [R190]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 0 0 STA [R423]
WPE 2 1980 1996 STA [R578]
WPE 3 1980 1996 STA [R578]
WPE 4 1980 1996 STA [R578]
WPE 5 1980 1996 STA [R578]

Population 1% level

Publication Yearset 1 percent Note
WPE 1 0 -1
WPE 2 1997 750
WPE 3 2002 400
WPE 4 2006 400
WPE 5 2012 350

References

  • R214 - Ellis-Joseph, S., Hewston, N. and Green, A. (compilers). 1992. Global Waterfowl Conservation Assessment and Management Plan: First Review Draft. Report by the IUCN Captive Breeding Specialist Group and The Wildfowl and Wetlands Trust. 1992. 77 pp.
  • R423 - Madge, S. and H. Burn 1988. Wildfowl: An identification guide to ducks, geese and swans of the world. Christopher Helm, Bromley, UK.
  • R578 - Scott, D.A. and Rose, P.M. 1996. Atlas of Anatidae populations in Africa and western Eurasia. Wetlands International Publication No. 41. Wetlands International, Wageningen, NL. 336 pp.
  • R190 - Dodman, T. 2002. Waterbird Population Estimates in Africa. Unpublished report to Wetlands International.

Notes




Copyright Wetlands International 2012

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