Population information

Order name Anseriformes
Family name Anatidae
Scientific name Sarkidiornis melanotos Common name African Comb Duck
Population name West Africa
Breeding range W Africa Non-breeding range
Red List Category Least Concern
Ramsar regions Africa
Notes Split from Africa population in WPE2.

Conservation Framework

Conservation framework Notes
AEWA
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 2 0 0 50,000 50,000 [R517]
WPE 3 2001 2001 50,000 100,000 [R190]
WPE 4 0 0 50,000 80,000 [S4959] [R192]
WPE 5 2010 2010 20,000 40,000 Expert opinion [S7104] [R910]
CSR 4 2001 2001 50,000 100,000 Expert opinion
CSR 5 2010 2010 20,000 40,000 Expert opinion [S4962] [R910]
CSR 6 2010 2010 20,000 40,000 Expert opinion [S8717] [R910]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 2 1980 1990 STA [R517]
WPE 3 1980 1990 STA [R517]
WPE 4 1995 2005 DEC [T3208] [R648]
WPE 5 1995 2005 DEC Poor [R648]
CSR 4 1995 2005 DEC Poor [R648]
CSR 5 1995 2005 DEC Poor [R648]
CSR 6 2003 2012 Unknown Poor [T6666] [R1436] [R910] [R1381]

Population 1% level

Publication Yearset 1 percent Note
WPE 2 1997 500
WPE 3 2002 750
WPE 4 2006 650
WPE 5 2012 280
CSR 4 0 -1
CSR 5 0 -1

References

  • R517 - Perennou, C. 1991. Les recensements internationaux d'oiseaux d'eau en Afrique Tropicale. IWRB Spec. Publ. No. 15. Slimbridge, UK. 140 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 Unpublished report to Wetlands International.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.
  • R648 - Trolliet, B., in litt., 2006.
  • R910 - Trolliet, B. in litt 2011
  • R1436 - Zwarts et al 2009. Living on edge.
  • R1381 - Nagy, S., Flink, S., Langendoen, T. (2014) Waterbird trends 1988-2012: Results of trend analyses of data from the International Waterbird Census in the African-Eurasian Flyway. Wetlands International, Ede.
  • R1548 - Wetlands International (2017) Flyway trend analyses based on data from the African-Eurasian Waterbird Census from the period of 1967-2015. Ede, The Netherlands: Wetlands International. Temporary URL: https://www.dropbox.com/sh/r76f4eyuhzu65co/AADzzQkhySsUDsmwFJUcHs91a?dl=0

Notes

  • S4959 - 36,000 counted in AfWC, Jan 2004 (189).
  • T3208 - 656 observes a decline probably caused by drought and felling of mature trees.
  • S7104 - Trolliet, B. In litt. 2012. Suggests that population maximum should be revised to 40,000 or even more likely to 20,000 individuals.
  • S4962 - 920. Suggest that population maximum should be revised to 40,000 or even more likely to 20,000 individuals.
  • S8717 - Trolliet, B. In litt. 2012. Suggests that population maximum should be revised to 40,000 or even more likely to 20,000 individuals.
  • T6666 - Zwarts et al. (2009): decline of ca. 40% in core part of Inner Niger Delta. This supports Trolliet's view (in litt., 2011). However, more recent trend is unclear.
  • T6912 - Significant long-term decline based on literature info (see CSR6).



Copyright Wetlands International 2012

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