Population information

Order name Ciconiiformes
Family name Threskiornithidae
Scientific name Plegadis falcinellus Common name Glossy Ibis
Population name Sub-Saharan Africa (bre)
Breeding range Sub-Saharan 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 -1
WPE 2 0 0 -1 -1
WPE 3 2001 2001 1,000,000 2,000,000 [R190]
WPE 4 2001 2001 1,000,000 2,000,000 [R190]
WPE 5 2010 2010 100,000 1,000,001 Expert opinion [S7856] [R910]
CSR 4 2001 2001 1,000,000 2,000,000 Expert opinion
CSR 5 2010 2010 100,000 1,000,001 Expert opinion [S4189] [R910]
CSR 6 1950 2014 40,000 75,000 Expert opinion [S8611] [R1371]
CSR 7 1950 2014 40,000 75,000 Expert opinion [S8611] [R1371]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 0 0 Unknown
WPE 2 0 0 Unknown
WPE 3 0 0 Unknown
WPE 4 0 0 Unknown
WPE 5 1990 2000 STA No idea [R66]
CSR 4 1990 2000 STA No idea [R66]
CSR 5 1990 2000 STA No idea [R66]
CSR 6 2003 2012 Unknown Poor [T6604] [R317]
CSR 7 1999 2015 STA Reasonable [T6855] [R1548] [R1601]

Population 1% level

Publication Yearset 1 percent Note
WPE 1 0 -1
WPE 2 0 -1
WPE 3 2002 15000
WPE 4 2006 15000
WPE 5 2012 20000
CSR 4 0 -1
CSR 5 0 -1
CSR 7 2018 550

References

  • R190 - Dodman, T. 2002. Waterbird Population Estimates in Africa. Unpublished report to Wetlands International.
  • R910 - Trolliet, B. in litt 2011
  • R66 - BirdLife International Website 2002
  • 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/
  • R317 - Hockey P.A.R., Dean, W.R.J. and Ryan, P.G. (eds). 2005. Roberts - Birds of Southern Africa, 7th ed. The Trustees of the John Voelcker Bird Book Fund, Cape Town.
  • 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
  • R1601 - Underhill LG, López Gómez M, Brooks M 2016. Bird distribution dynamics 4 – Glossy Ibis Plegadis falcinellus in South Africa, Lesotho and Swaziland. Biodiversity Observations 7.101: 1–7. URL: http://bo.adu.org.za/pdf/BO_2016_07-101.pdf

Notes

  • S7856 - Trolliet, B. In litt 2011. Considers former estimate unlikely.
  • S4189 - 920. Considers old estimate unlikely.
  • S8611 - Recent analysis that discounts the extremely high estimate of Range Ecology Survey (1983) from the Sudd.
  • T6604 - Hockey et al. (2005). Has been steadily increasing in Southern Africa for decades; in need of up-to-date confirmation however.
  • T6855 - The short-term trend is rather uncertain, therefore the long-term IWC trend is used. This suggest a stable long-term trend (Wetlands International 2017). Underhill et al. (2016) found that the species has increased in both range and abundance over the Western Cape but has mixed fortunes elsewhere in ZA.



Copyright Wetlands International 2012

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