Population information

Order name Podicipediformes
Family name Podicipedidae
Scientific name Podiceps cristatus Common name Great Crested Grebe
Population name australis, New Zealand
Breeding range New Zealand Non-breeding range
Red List Category Least Concern
Ramsar regions Oceania
Notes These populations were treated as a single larger population WPE1. (WPE2)

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 1993 1993 200 300 [R501]
WPE 3 1993 1993 200 300 [R501]
WPE 4 1993 1993 200 300 [R501]
WPE 5 2004 2004 340 350 Census based [R1106]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 2 1982 1992 DEC [R501]
WPE 3 1982 1992 DEC [R501]
WPE 4 1982 1992 DEC [R501]
WPE 5 1980 2004 INC Reasonable [T3937] [R1106]

Population 1% level

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

References

  • R501 - Ornithological Society of New Zealand. (pers. comm.). 1993. Unpublished data compiled for IWRB.
  • R1106 - Jensen, L.A. and Snoyink, R.J. 2005. The distribution and numbers of Australasian crested grebe (kamana) in New Zealand, January 2004. Notornis 52: 34-42.

Notes

  • T3937 - Trend based on a single but comprehensive pair of replicate surveys 24 years apart.



Copyright Wetlands International 2012

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