Population information

Order name Podicipediformes
Family name Podicipedidae
Scientific name Tachybaptus novaehollandiae Common name Australasian Grebe
Population name novaehollandiae
Breeding range New Zealand, Australia, S New Guinea Non-breeding range
Red List Category Least Concern
Ramsar regions Oceania
Notes

Conservation Framework

Conservation framework Notes
No conservation frameworks
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 1 1993 1993 100,000 1,000,000 [R665]
WPE 4 2003 2003 25,000 1,000,000 [R341]
WPE 2 1987 1991 500,000 500,000 [R497]
WPE 3 1987 1991 500,000 500,000 [R497]
WPE 5 1994 2011 25,000 1,000,000 Best guess [S7525] [R341] [R495] [R1101]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 1982 1992 STA [R665]
WPE 4 1985 2005 STA [R668]
WPE 2 1986 1996 STA [R667]
WPE 3 1991 2001 STA [R604]
WPE 5 2001 2010 Unknown No idea

Population 1% level

Publication Yearset 1 percent Note
WPE 1 0 -1
WPE 4 0 -1
WPE 2 1997 5000
WPE 3 2002 5000
WPE 5 2012 10000

References

  • R665 - Unpublished information provided by IWRB Specialist Research Groups
  • 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,
  • R668 - Unpublished information supplied by Wetlands International Specialist Groups, 2006.
  • R497 - O'Donnel, C.F.J. and Fjelds?, J. 1995. Grebes: a global action plan for their conservation. IUCN.
  • R667 - Unpublished information supplied by Wetlands International Specialist Groups, 1997.
  • R604 - Specialist]] Unpublished information supplied by Wetlands International Specialist Groups, 2002.
  • R495 - O'Donnel, C. and Fjelds?, J. (1997) Grebes: status survey and conservation action plan. IUCN/SSC Grebe specialist group edition. Cambridge, UK: IUCN.
  • 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

  • S7525 - Data remain inadequate for developing a numerical estimate because population is widespread and mostly non-congregatory; numbers probably fluctuate naturally across two estimate classes.



Copyright Wetlands International 2012

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