Porphyrio mantelli 


Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Aves Gruiformes Rallidae

Scientific Name: Porphyrio mantelli
Species Authority: (Owen, 1848)
Common Name(s):
English North Island Takahe
Porphyrio hochstetteri hochstetteri BirdLife International (2000)
Taxonomic Source(s): del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Lynx Edicions BirdLife International.
Taxonomic Notes: Porphyrio mantelli (Sibley and Monroe 1990, 1993) has been split into P. mantelli (extinct) and P. hochstetteri (extant) following Trewick (1996). Note that in BirdLife International (2000) the name P. mantelli was incorrectly assigned to the extant form, while the name P. hochstetteri was incorrectly assigned to the extinct form.

Assessment Information [top]

Red List Category & Criteria: Extinct ver 3.1
Year Published: 2012
Date Assessed: 2012-05-01
Assessor(s): BirdLife International
Reviewer(s): Symes, A. & Butchart, S.
Facilitator/Compiler(s): Brooks, T., Khwaja, N., Mahood, S.
This species was endemic to New Zealand's North Island, but has been driven Extinct by human-induced habitat changes. There has been only one historical record of the species, in 1894.
Previously published Red List assessments:
2008 Extinct (EX)
2004 Extinct (EX)
2000 Extinct (EX)
1996 Endangered (EN)
1994 Not Recognized (NR)
1988 Not Recognized (NR)

Geographic Range [top]

Range Description: Porphyrio mantelli was a flightless endemic to North Island, New Zealand, from where it is known from subfossils from a number of archeological sites (Williams 1960) and from one possible late 19th century record (Phillipps 1959).

Countries occurrence:
Regionally extinct:
New Zealand
Continuing decline in area of occupancy (AOO): Unknown
Extreme fluctuations in area of occupancy (AOO): No
Estimated extent of occurrence (EOO) - km2:
Continuing decline in extent of occurrence (EOO): Unknown
Extreme fluctuations in extent of occurrence (EOO): No
Continuing decline in number of locations: Unknown
Extreme fluctuations in the number of locations: No
Lower elevation limit (metres): 1050
Upper elevation limit (metres): 1520
Range Map: Click here to open the map viewer and explore range.

Habitat and Ecology [top]

Habitat and Ecology: It inhabited high altitude alpine grasslands.

Systems: Terrestrial
Continuing decline in area, extent and/or quality of habitat: Unknown
Generation Length (years): 6.7
Movement patterns: Not a Migrant

Threats [top]

Major Threat(s): The decline of the species has generally been attributed to the increasing incursion of forest into the alpine grasslands through the Holocene (Mills et al. 1984), although hunting by the Maori probably also played a significant role (Beauchamp and Worthy 1988).

Citation: BirdLife International. 2012. Porphyrio mantelli. The IUCN Red List of Threatened Species 2012: e.T22728833A38416419. . Downloaded on 29 May 2016.
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