Population information

Order name Anseriformes
Family name Anatidae
Scientific name Thalassornis leuconotus Common name White-backed Duck
Population name leuconotus, West Africa
Breeding range W Africa Non-breeding range
Red List Category Least Concern
Ramsar regions Africa
Notes

Conservation Framework

Conservation framework Notes
AEWA
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 1 0 0 1 10,000 [R518]
WPE 2 0 0 1,000 1,000 [R518]
WPE 3 2001 2001 1 1,000 [R190]
WPE 4 0 0 1 500 [S2914] [R192]
WPE 5 2006 2006 1 500 Expert opinion [R192]
CSR 4 2006 2006 1 500 Expert opinion [R192]
CSR 5 2006 2006 1 500 Expert opinion [R192]
CSR 6 2006 2006 1 500 Expert opinion [S8679] [R192]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 1982 1992 DEC [R518]
WPE 2 1982 1992 DEC [R518]
WPE 3 1982 1992 DEC [R518]
WPE 4 1982 1992 DEC [R518]
WPE 5 1982 1992 DEC Poor [R518]
CSR 4 1982 1992 DEC Poor [R518]
CSR 5 1982 1992 DEC Poor [R518]
CSR 6 1982 1992 DEC Poor [R1371]

Population 1% level

Publication Yearset 1 percent Note
WPE 1 0 -1
WPE 2 1997 10
WPE 3 2002 10
WPE 4 2006 5
WPE 5 2012 1
CSR 4 0 -1
CSR 5 0 -1

References

  • R518 - Perennou, C. 1992. African waterfowl census 1992. Les D?nombrements Internationaux d?oiseaux d?eau en Afrique, 1992. IWRB, Slimbridge, U.K. 87 pp.
  • R190 - Dodman, T. 2002. Waterbird Population Estimates in Africa. Unpublished report to Wetlands International.
  • R192 - Dodman, T., 2006. Status, estimates and trends of waterbird populations in Africa. Wetlands International, Dakar.
  • R1371 - Dodman, T. 2014. Status, Estimates and Trends of Waterbird Populations in Africa: AEWA-listed African populations. Wetlands International. (CSR6 African populations) URL: https://www.wetlands.org/publications/1304/

Notes

  • S2914 - Almost no records since 1980s. Probably extinct in most of West African range (198).
  • S8679 - No IWC records.



Copyright Wetlands International 2012

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