Population information

Order name Ciconiiformes
Family name Ardeidae
Scientific name Ardea alba Common name Great White Egret
Population name modestus, Australia
Breeding range Australia, S New Guinea Non-breeding range
Red List Category Least Concern
Ramsar regions Oceania
Notes Sometimes considered as Ardea (Casmerodius, Egretta) modestus.

Conservation Framework

Conservation framework Notes
EAAF Partnership
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 4 2003 2003 25,000 100,000 [S5818] [R341]
WPE 1 0 0 -1 -1
WPE 2 0 0 -1 -1
WPE 3 0 0 -1 -1
WPE 5 1995 2011 25,000 100,000 Best guess [S7648] [R286] [R341] [R1101]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 4 1990 2000 FLU [R341]
WPE 1 0 0 Unknown
WPE 2 0 0 Unknown
WPE 3 0 0 Unknown
WPE 5 1982 2011 FLU Poor [R1101] [R341]

Population 1% level

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

References

  • R341 - Jaensch, Roger, August 2005. Detailed data and notes on numbers and distribution of waterbirds in Australia, updated from Jaensch, 2003, and derived from more than 90 Australian sources including Wetlands International, Birds Australia and Jaensch, 2003,
  • R286 - Halse, S.A., Pearson, G.B., Jaensch, R.P., Kulmoi, P., Gregory, P., Kay, W.R. and Storey, A.W. 1996. Waterbird surveys of the Middle Fly River floodplain, Papua New Guinea. Wildlife Research 23 (5): 557-569. (CSIRO Publishing, Australia).
  • R1101 - Jaensch, R. April 2012. Detailed data and notes on numbers and trends of waterbirds in Australia and other parts of the Oceania region, in a spreadsheet prepared for Wetlands International - Oceania for the 5th edition of WPE.

Notes

  • S5818 - 289: Large numbers [90,000] estimated southern New Guinea but not known if migrants from Australia.
  • S7648 - Estimate based on review of previous information and recent information that suggests total numbers remain between 25,000 and 100,000. Numbers in New Guinea can reach the same level but likely to be mostly migrants from Australia.



Copyright Wetlands International 2012

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