Hypotaenidia pacifica 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Aves Gruiformes Rallidae

Scientific Name: Hypotaenidia pacifica (Gmelin, 1789)
Common Name(s):
English Tahiti Rail
Gallirallus pacificus (Gmelin, 1789)
Taxonomic Source(s): Brooks, T. 2000. Extinct species. In: BirdLife International (ed.), Threatened Birds of the World, pp. 701-708. Lynx Edicions and BirdLife International, Barcelona and Cambridge, U.K.
Taxonomic Notes:

Hypotaenidia pacifica (del Hoyo and Collar 2014) was previously placed in the genus Gallirallus as G. pacificus.

The name ecaudatus or ecaudata, often incorrectly used for this species, in fact refers to Buff-banded Rail H. philippensis (Taylor 1998).

Assessment Information [top]

Red List Category & Criteria: Extinct ver 3.1
Year Published: 2016
Date Assessed: 2016-10-01
Assessor(s): BirdLife International
Reviewer(s): Butchart, S. & Symes, A.
Facilitator/Compiler(s): Brooks, T., Khwaja, N., Mahood, S., Martin, R
This species was known from the Society Islands, French Polynesia, but has been driven Extinct by cat and rat predation. It was last recorded on Mehetia in the 1930s.
Previously published Red List assessments:

Geographic Range [top]

Range Description:Hypotaenidia pacificus is known only from Forster's painting from Tahiti, French Polynesia, in the British Museum (Knox and Walters 1994), from Cook's second voyage in 1773 (Stattersfield et al. 1994), although there were reports from Tahiti until 1844, and from the nearby Mehetia until the 1930s (Bruner 1972).

Countries occurrence:
Regionally extinct:
French Polynesia
Additional data:
Continuing decline in area of occupancy (AOO):Unknown
Extreme fluctuations in area of occupancy (AOO):NoEstimated extent of occurrence (EOO) - km2:
Continuing decline in extent of occurrence (EOO):UnknownExtreme fluctuations in extent of occurrence (EOO):No
Continuing decline in number of locations:Unknown
Extreme fluctuations in the number of locations:No
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:None remain.
Additional data:
Continuing decline of mature individuals:Unknown
Extreme fluctuations:NoPopulation severely fragmented:No
Continuing decline in subpopulations:Unknown
Extreme fluctuations in subpopulations:NoAll individuals in one subpopulation:No

Habitat and Ecology [top]

Habitat and Ecology:Nothing is known.

Continuing decline in area, extent and/or quality of habitat:Unknown
Generation Length (years):3.4
Movement patterns:Not a Migrant

Threats [top]

Major Threat(s): It was flightless, and its extinction was presumably caused by introduced cats and rats (Bruner 1972).

Citation: BirdLife International. 2016. Hypotaenidia pacifica. The IUCN Red List of Threatened Species 2016: e.T22692450A93354380. . Downloaded on 26 September 2018.
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