Population information

Order name Podicipediformes
Family name Podicipedidae
Scientific name Podiceps cristatus Common name Great Crested Grebe
Population name australis, Australia
Breeding range Australia Non-breeding range
Red List Category Least Concern
Ramsar regions Oceania
Notes These populations were treated as a single larger population WPE1. (WPE2) / Sometimes assigned to christiani (Peters, 1931). (WPE4)

Conservation Framework

Conservation framework Notes
No conservation frameworks
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 2 1987 1991 3,000 10,000 [R497]
WPE 3 1987 1991 3,000 10,000 [R497]
WPE 4 2003 2003 1 25,000 [R341]
WPE 5 2004 2011 1 25,000 Best guess [S7564] [R341]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 2 0 0 Unknown
WPE 3 0 0 Unknown
WPE 4 0 0 Unknown
WPE 5 2001 2010 Unknown No idea

Population 1% level

Publication Yearset 1 percent Note
WPE 2 1997 65
WPE 3 2002 65
WPE 4 2006 250
WPE 5 2012 250

References

  • R497 - O'Donnel, C.F.J. and Fjelds?, J. 1995. Grebes: a global action plan for their conservation. IUCN.
  • 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,

Notes

  • S7564 - Data remain inadequate for developing a numerical estimate because of detection difficulties in surveys of main congregating sites; numbers probably fluctuate naturally across two estimate classes.



Copyright Wetlands International 2012

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