Population information

Order name Ciconiiformes
Family name Ardeidae
Scientific name Ardeola ralloides Common name Squacco Heron
Population name paludivaga, Sub-Saharan Africa & Madagascar
Breeding range Sub-Saharan Africa, Madagascar Non-breeding range
Red List Category Least Concern
Ramsar regions Africa
Notes Sometimes ascribed to ralloides.

Conservation Framework

Conservation framework Notes
AEWA
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 3 2001 2001 100,000 500,000 [R190]
WPE 4 0 0 300,000 600,000 [S3817] [R192]
WPE 1 1993 1993 25,000 100,000 [R665]
WPE 2 0 0 25,000 100,000 [R667]
WPE 5 2006 2006 300,000 600,000 Expert opinion [R192] [R648]
CSR 5 2006 2006 300,000 600,000 Expert opinion [R192] [R648]
CSR 4 2006 2006 300,000 600,000 Expert opinion [R192] [R648]
CSR 6 2006 2006 300,000 600,000 Expert opinion
CSR 6 2006 2006 300,000 600,000 Expert opinion [R192] [R648]

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 INC? No idea [T5603] [R910]
CSR 5 1991 2001 INC? Poor [T2385] [R910]
CSR 4 1991 2001 STA No idea
CSR 6
CSR 6 2003 2012 Unknown No idea

Population 1% level

Publication Yearset 1 percent Note
WPE 3 2002 3000
WPE 4 2006 4500
WPE 1 0 -1
WPE 2 0 -1
WPE 5 2012 4200
CSR 5 0 -1
CSR 4 0 -1

References

  • R190 - Dodman, T. 2002. Waterbird Population Estimates in Africa. Unpublished report to Wetlands International.
  • R192 - Dodman, T., 2006. Status, estimates and trends of waterbird populations in Africa. Wetlands International, Dakar.
  • R665 - Unpublished information provided by IWRB Specialist Research Groups
  • R667 - Unpublished information supplied by Wetlands International Specialist Groups, 1997.
  • R648 - Trolliet, B., in litt., 2006.
  • R910 - Trolliet, B. in litt 2011
  • 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

  • S3817 - 656: Counts of 20,000 in LCB and 12,000 in Inner Niger Delta in 2003 suggest a minimum of 200,000 or 300,000.
  • T5603 - Trolliet, B. In litt. 2011. The trend is increasing in Lake Chad Basin as in Inner Niger Delta.
  • T2385 - 920. The trend is increasing in Lake Chad Basin as in Inner Niger Delta. increasing in LCB as in IND.



Copyright Wetlands International 2012

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