Population information

Order name Gruiformes
Family name Rallidae
Scientific name Porphyrio mantelli Common name North Island Takahe
Population name New Zealand
Breeding range North Island, New Zealand Non-breeding range
Red List Category Extinct
Ramsar regions Oceania
Notes Not listed in WPE3.

Conservation Framework

Conservation framework Notes
No conservation frameworks
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 4 0 0 0 0 [S828] [R639]
WPE 1 1993 1993 200 200 [R501]
WPE 2 1993 1993 200 200 [R501]
WPE 3 0 0 -1 -1
WPE 5 0 0 0 0 [S6626] [R639]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 4 0 0 EXT [R639]
WPE 1 0 0 Unknown
WPE 2 0 0 Unknown
WPE 3 0 0 Unknown
WPE 5 0 0 EXT [R639]

Population 1% level

Publication Yearset 1 percent Note
WPE 4 0 -1
WPE 1 1994 2
WPE 2 1997 2
WPE 3 0 -1
WPE 5 0 -1

References

  • R639 - Trewick, S.A. and Worthy, T.H. 2001. Origins and prehistoric ecology of takahe based on morphometric, molecular, and fossil data. Pp 31-48 in: W.G. Lee and I.G. Jamieson (eds.) The Takahe: 50 years of conservation management and research. Dunedin, New Zealand
  • R501 - Ornithological Society of New Zealand. (pers. comm.). 1993. Unpublished data compiled for IWRB.

Notes

  • S828 - Known only from sub-fossil bones but one possible record in 19th century (http://www.iucnredlist.org).
  • S6626 - Known only from sub-fossil bones but one possible record in 19th century (http://www.iucnredlist.org).



Copyright Wetlands International 2012

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