Population information

Order name Ciconiiformes
Family name Ardeidae
Scientific name Egretta gularis Common name Western Reef-egret
Population name gularis, West Africa
Breeding range Coastal W Africa Mauritania - Gabon Non-breeding range
Red List Category Least Concern
Ramsar regions Africa
Notes This form and schistacea sometimes treated as separate species, Western Reef Heron.Sometimes assigned to Egretta garzetta.

Conservation Framework

Conservation framework Notes
AEWA
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 3 0 0 10,000 100,000 [R232]
WPE 4 0 0 10,000 100,000 [R232]
WPE 1 0 0 -1 -1
WPE 2 0 0 -1 -1
WPE 5 1990 2000 10,000 100,000 Best guess [R232]
CSR 4 1990 2000 10,000 100,000 Best guess [R232]
CSR 5 1990 2000 10,000 100,000 Best guess [R232]
CSR 6 1991 2014 10,000 50,000 Expert opinion [S8606] [R1371]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 3 1991 2001 STA [R190]
WPE 4 1991 2001 STA [R190]
WPE 1 0 0 Unknown
WPE 2 0 0 Unknown
WPE 5 1991 2001 STA Poor [R190]
CSR 4 1991 2001 STA Poor [R190]
CSR 5 1991 2001 STA Poor [R190]
CSR 6 2003 2014 INC/STA Reasonable [T6599] [R1359] [R1371]

Population 1% level

Publication Yearset 1 percent Note
WPE 3 2002 1000
WPE 4 2006 1000
WPE 1 0 -1
WPE 2 0 -1
WPE 5 2012 1000
CSR 4 0 -1
CSR 5 0 -1

References

  • R232 - Fishpool, L.D.C. and Evans, M.I.,(Eds). 2001. Important Bird Areas in Africa and associated islands: Priority sites for conservation. Newbury and Cambridge, UK: Pisces Publications and BirdLife International (BirdLife Conservation Series No. 11).
  • R190 - Dodman, T. 2002. Waterbird Population Estimates in Africa. Unpublished report to Wetlands International.
  • 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/
  • R1359 - van Roomen, M., van Winden, E. & Langendoen, T. 2014. The assessment of trends and population sizes of a selection of waterbird species and populations from the coastal East Atlantic Flyway for Conservation Status Report 6 of The African Eurasian Waterbird Agreement. Wadden Sea Flyway Initiative, Wetlands International & Birdlife International.
  • 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
  • R1552 - van Roomen M., Nagy S., Foppen R., Dodman T., Citegetse G. & Ndiaye A. 2015. Status of coastal waterbird populations in the East Atlantic Flyway. With special attention to flyway populations making use of the Wadden Sea. Programme Rich Wadden Sea, Leeuwarden, The Netherlands, Sovon, Nijmegen, The Netherlands, Wetlands International, Wageningen, The Netherlands, BirdLife International, Cambridge, United Kingdom &, Common Wadden Sea Secretariat, Wilhelmshaven, Germany. URL: http://www.waddensea-secretariat.org/sites/default/files/downloads/status_coastal_birds_eaf_2014_1.pdf

Notes

  • S8606 - Review of more recent data, including 2013 and 2014 counts
  • T6599 - Based on mid-winter counts, large increase both in the long- and in the short-term (1979-2014 and 2003-2014, respectively) according to van Roomen et al. (2014). However, Dodman (2014) thinks that the population is stable, due to the relative isolation of breeding colonies, some of which occur in protected areas, the extensive availability of suitable habitat and the egret’s dependence on these habitats, preventing its expansion into other areas. However, this argument does not account for potentially increasing carrying capacity.
  • T6836 - Van Roomen et al (2015) found increasing trend based on the IWC data. Wetlands International (2017) found that the long-term trend is stable/fluctuating, the short-term is uncertain. The latter agrees well with Dodman (2014).



Copyright Wetlands International 2012

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