Population information

Order name Ciconiiformes
Family name Ardeidae
Scientific name Bubulcus ibis Common name Cattle Egret
Population name ibis, Southern Africa
Breeding range Southern Africa Non-breeding range
Red List Category Least Concern
Ramsar regions Africa
Notes Often placed in genus Ardea.

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 0 0 100,000 1,000,000 [R579]
WPE 4 0 0 100,000 1,000,000 [R579]
WPE 5 1996 2001 100,000 1,000,000 Best guess [R579]
CSR 4 1996 2001 100,000 1,000,000 Best guess [R579]
CSR 5 1996 2001 100,000 1,000,000 Best guess [R579]
CSR 6 1996 2001 100,000 1,000,000 Best guess [R579]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 1900 1982 INC [R94]
WPE 2 1900 1982 INC [R94]
WPE 3 1940 1996 INC [R295]
WPE 4 1940 1996 INC [R295]
WPE 5 1986 1996 INC Poor [R295]
CSR 4 1986 1996 INC Poor [R295]
CSR 5 1986 1996 INC Poor [R295]
CSR 6 2003 2012 DEC? Reasonable [T6631] [R1381] [R1371]

Population 1% level

Publication Yearset 1 percent Note
WPE 1 0 -1
WPE 2 0 -1
WPE 3 2002 10000
WPE 4 2006 10000
WPE 5 2012 10000
CSR 4 0 -1
CSR 5 0 -1

References

  • R94 - Brown, L.H., Urban, E.K. and Newman, K. 1982. The Birds of Africa. Volume I. Academic Press, London and New York.
  • R579 - Scott, D.A. in press, 2002. Report on the Conservation Status of Migratory Waterbirds in the Agreement Area. Update Report to African Eurasian Migratory Waterbird Agreement Secretariat
  • R295 - Harrison, J.A., Allan, D.G., Underhill, L.G., Herremans, M., Tree, A.J., Parker, V. and Brown, C.J. (1997). The Atlas of Southern African Birds. Vol.1. BirdLife South Africa, Johannesburg. 785 pp.
  • 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.
  • 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/
  • 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

  • T6631 - IWC trend analysis indicates significant long-term decline since the mid-1990s (Nagy et al., 2014). This may reflect a genuine decline in the size of the population, but it could also indicate a shift in seasonal movements, noting that count data are limited to specific months of the year.
  • T6820 - Long-term trend is stable (Wetlands International 2017).



Copyright Wetlands International 2012

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