Population information

Order name Ciconiiformes
Family name Ardeidae
Scientific name Egretta ardesiaca Common name Black Heron
Population name Sub-Saharan Africa
Breeding range Sub-Saharan Africa except Congo Basin & Kalahari 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 10,000 100,000 No quality assessment [R179]
WPE 2 0 0 10,000 100,000 No quality assessment [R179]
WPE 3 0 0 10,000 100,000 No quality assessment [R179]
WPE 4 0 0 25,000 100,000 No quality assessment [S3560] [R179]
WPE 5 1999 1999 25,000 100,000 Best guess [R179]
AEWA CSR 5 1999 1999 25,000 100,000 Best guess [R179]
AEWA CSR 4 1999 1999 25,000 100,000 Best guess [R179]
AEWA CSR 6 1999 1999 25,000 100,000 Best guess [R179]
AEWA CSR 7 1999 1999 25,000 100,000 Best guess [R179]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 0 0 Unknown No quality assessment
WPE 2 0 0 Unknown No quality assessment
WPE 3 0 0 Unknown No quality assessment
WPE 4 1990 2000 STA No quality assessment [T2178] [R192]
WPE 5 1990 2000 INC? No idea [T5341] [R910]
AEWA CSR 5 1990 2000 INC? Poor [T2177] [R910]
AEWA CSR 4 1990 2000 STA Poor
AEWA CSR 6 1990 2000 Unknown No idea [T6686] [R910]
AEWA CSR 7 2006 2015 UNC Poor [R1548]

Population 1% level

Publication Yearset 1 percent Note
WPE 1 -1 -1 Not Set
WPE 2 -1 -1 Not Set
WPE 3 2002 1000
WPE 4 2006 1000
WPE 5 2012 1000
AEWA CSR 5 -1 -1 Not Set
AEWA CSR 4 -1 -1 Not Set
AEWA CSR 7 2018 1000

References

  • R179 - del Hoyo, J., Elliott A. and Sargatal, J. (eds). 1992. Handbook of the Birds of the World. Volume 1: Ostrich to Ducks. Lynx Editions, Barcelona.
  • R192 - Dodman, T., 2006. Status, estimates and trends of waterbird populations in Africa. Wetlands International, Dakar.
  • R910 - Trolliet, B. in litt 2012
  • 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
  • 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

  • S3560 - Trolliet (2006): A count of 6,540 in the LCB in 1999 makes the former estimate of B/C seem too low.
  • T2178 - Increasing in Southern Africa (298). Has declined sharply in Madagascar over >30 years due to disruption and predation by man (472, 400).
  • T5341 - 920. Since the mid 1980?s, numbers are locally increasing.
  • T2177 - 920. Since the mid 1980’s, numbers are locally increasing.
  • T6686 - Has increased in the Lake Chad Basin between 1980s and 2008 (Trolliet in list, 2011), but there is insufficient data to draw conclusions for the whole population.
  • T7457 - Based on IWC data from 16 countries, Nagy & Langendoen (2020) reported uncertain trends with an increasing tendency for both 2001-2017 and 2008-2017, but the trend is based on very high imputation.



Copyright Wetlands International 2012

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