Population information

Order name Anseriformes
Family name Anatidae
Scientific name Oxyura maccoa Common name Maccoa Duck
Population name Southern Africa
Breeding range Southern Africa Non-breeding range
Red List Category Near Threatened
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 2 1990 1995 15,000 25,000 No quality assessment [R578]
WPE 3 2001 2001 1 10,000 No quality assessment [R190]
WPE 1 0 0 -1 -1 No quality assessment
WPE 4 0 0 7,000 8,250 No quality assessment [R59]
WPE 5 2000 2005 7,000 8,250 Expert opinion [R59]
AEWA CSR 4 2000 2005 7,000 8,250 Expert opinion [R59]
AEWA CSR 5 2000 2005 7,000 8,250 Expert opinion [R59]
AEWA CSR 6 2000 2005 7,000 8,250 Expert opinion [R1509]
AEWA CSR 7 2000 2005 7,000 8,250 Expert opinion [R1509]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 2 1983 1993 INC No quality assessment [R578]
WPE 3 1983 1993 INC No quality assessment [R578]
WPE 1 0 0 Unknown No quality assessment
WPE 4 0 0 Unknown No quality assessment
WPE 5 1900 2005 Unknown No idea
AEWA CSR 4 1900 2005 INC Poor
AEWA CSR 5 1900 2005 Unknown No idea [R59]
AEWA CSR 6 2003 2012 DEC Reasonable [R1381]
AEWA CSR 7 2006 2011 DEC Reasonable [T6981] [R1548] [R1585]

Population 1% level

Publication Yearset 1 percent Note
WPE 2 1997 200
WPE 3 2002 100
WPE 1 -1 -1 Not Set
WPE 4 2006 80
WPE 5 2012 75
AEWA CSR 4 -1 -1 Not Set
AEWA CSR 5 -1 -1 Not Set
AEWA CSR 7 2018 75

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 Unpublished report to Wetlands International.
  • R59 - Berruti, A., Baker, N., Buijs, D., Colahan, B.D., Davies, C., Dellegn, Y., Eksteen, J., Kolberg, Marchant, A., H., Mpofu, Z., Nantongo-Kalundu, P., Nnyiti, P., Pienaar, K., Shaw, K., Tyali, T., van Niekerk, J., Wheeler, M.J. and Evans, S.W. (eds). 2005.
  • 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.
  • 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. URL: http://iwc.wetlands.org/index.php/aewatrends
  • R1585 - Underhill LG, Brooks M 2016. Bird distribution dynamics: 2 – Maccoa Duck Oxyura maccoa In South Africa, Lesotho and Swaziland. Biodiversity Observations 7.88: 1–8 URL: http://bo.adu.org.za/content.php?id=281
  • 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

Notes

  • T6981 - IWC trend analysis suggest a short-term decline, but the long-term trend is still an increase (Wetlands International 2017). This decline is also confirmed by the SABAP2 data (Underhill & Brooks 2016).
  • S9162 - The new estimate is made using the estimate of the AEWA ISSMP (Berruti et al., 2007) and reduces it by roughly 50%, the decline the population might have suffered according to the IWC trend analysis (Nagy & Langendoen, 2020).
  • T7243 - The 10-year trend is statistically uncertain, but it shows a negative tendency. However, both the 3-generations trend and the overall trend since 1995 show statistically significant decrease (Nagy & Langendoen, 2020). The SABAP2 data show contraction of the distribution area (Underhill & Brooks 2016).



Copyright Wetlands International 2012

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