Population information

Order name Anseriformes
Family name Anatidae
Scientific name Oxyura maccoa Common name Maccoa Duck
Population name Eastern Africa
Breeding range E Africa Non-breeding range
Red List Category Vulnerable
Ramsar regions Africa
Notes These populations were treated as a single larger population WPE1.

Conservation Framework

Conservation framework Notes
AEWA
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 2 1990 1995 15,000 25,000 No quality assessment [R578]
WPE 3 2001 2001 1,000 1,500 No quality assessment [R190]
WPE 4 2001 2001 1,500 1,500 No quality assessment [R190]
WPE 1 0 0 -1 -1 No quality assessment
WPE 5 2001 2001 1,500 1,500 Best guess [R190]
AEWA CSR 4 2001 2001 1,500 1,500 Best guess [R190]
AEWA CSR 5 2001 2001 1,500 1,500 Best guess [R190]
AEWA CSR 6 2001 2005 1,500 1,500 Expert opinion [R1509] [R190]
AEWA CSR 7 2001 2005 1,500 1,500 Expert opinion [R1509] [R190]
AEWA CSR 8 2014 2015 100 150 Expert opinion [S9158] [R1623]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 2 1983 1993 DEC No quality assessment [R578]
WPE 3 1983 1993 DEC No quality assessment [R578]
WPE 4 1991 2001 DEC No quality assessment [R190]
WPE 1 0 0 Unknown No quality assessment
WPE 5 1991 2001 DEC Poor [R190]
AEWA CSR 4 1991 2001 DEC Poor [R190]
AEWA CSR 5 1991 2001 DEC Poor [R190]
AEWA CSR 6 1995 2005 DEC Poor [R1509]
AEWA CSR 7 2006 2015 DEC Poor [R1559]
AEWA CSR 8 2006 2015 DEC Reasonable [T7239] [R1619] [R1621] [R1622]

Population 1% level

Publication Yearset 1 percent Note
WPE 2 1997 200
WPE 3 2002 15
WPE 4 2002 15
WPE 1 -1 -1 Not Set
WPE 5 2002 15
AEWA CSR 4 -1 -1 Not Set
AEWA CSR 5 -1 -1 Not Set
AEWA CSR 7 2002 15
AEWA CSR 8 2002 15

References

  • 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 Unpublished report to Wetlands International.
  • R1509 - Berruti, A.; Baker, N.; Buijs, D.; Colahan, B.D.; Davies, C.; Dellegn, Y.; Eksteen, J.; Kolberg, H.; Marchant, A.; Mpofu, Z.; Nantongo-Kalundu, P.; Nnyiti, P.; Pienaar, K.; Shaw, K.; Tyali, T.; van Niekerk, J.; Wheeler, M.J.; Evans, S.W. 2007. International Single Species Action Plan for the conservation of the Maccoa Duck Oxyura maccoa. AEWA, Bonn.
  • R1559 - BirdLife International (2017) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 30/09/2017.
  • R1623 - BirdLife International (2020) Species factsheet: Oxyura maccoa. Downloaded from http://www.birdlife.org on 22/10/2020.
  • R1619 - Nagy, S. & Langendoen, T. (2020) Flyway trend analyses based on data from the African-Eurasian Waterbird Census from the period of 1967-2018. Online publication. Wetlands International, Wageningen, The Netherlands. URL: http://iwc.test.wetlands.org/index.php/aewatrends8
  • R1621 - Njogore, P. (2020). Reports on the population status of AEWA-listed (native) and non-native waterbird species in the Agreement area for the period 2013-2018: Kenya.
  • R1622 - Leguma, E.O., John, J., Nkwabi, A., Mgimwa, E.F. & Kaita, M. (2020). Reports on the population status of AEWA-listed (native) and non-native waterbird species in the Agreement area for the period 2013-2018: United Republic of Tanzania.

Notes

  • S9158 - 100 in TZ and <50 in KE.
  • T7239 - The trend is based on data only from Kenya. According to the IWC count data, the population has increased until the late 2000s and then started decreasing very rapidly. However, each trend (1992-2015, 1999-2015, and 2006-2015) is statistically uncertain (Nagy & Langendoen, 2020). National status reports from KE (Njogore, 2020) and TZ (Leguma et al., 2020) also confirm the decrease in these two main range states.



Copyright Wetlands International 2012

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