Hypotaenidia insignis 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Aves Gruiformes Rallidae

Scientific Name: Hypotaenidia insignis (Sclater, 1880)
Common Name(s):
English New Britain Rail, Pink-legged Rail
Gallirallus insignis (Sclater, 1880)
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. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
Taxonomic Notes: Hypotaenidia insignis (del Hoyo and Collar 2014) was previously placed in the genus Gallirallus.

Assessment Information [top]

Red List Category & Criteria: Near Threatened ver 3.1
Year Published: 2016
Date Assessed: 2016-10-01
Assessor(s): BirdLife International
Reviewer(s): Butchart, S. & Symes, A.
Contributor(s): Dutson, G.
Facilitator/Compiler(s): Benstead, P., Derhé, M., Dutson, G., Mahood, S., O'Brien, A. & Pilgrim, J.
This species is classified as Near Threatened because although it may not be as severely affected by deforestation as some species in the region, owing to its more catholic habitat preferences, it is subject to trapping and is still thought to be declining moderately rapidly.

Previously published Red List assessments:

Geographic Range [top]

Range Description:Hypotaenidia insignis is a flightless (or almost flightless) forest rail endemic to the island of New Britain in Papua New Guinea. It is generally uncommon, although it is rather secretive and poorly known (Gilliard and LeCroy 1967, Bishop 1983, Coates 1985, G. Dutson pers. obs. 1997, Taylor and van Perlo 1998, Bishop and Jones 2001).

Countries occurrence:
Papua New Guinea
Additional data:
Continuing decline in area of occupancy (AOO):Unknown
Extreme fluctuations in area of occupancy (AOO):NoEstimated extent of occurrence (EOO) - km2:64100
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
Upper elevation limit (metres):1250
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:G. Dutson (in litt. 2002) estimated that fewer than 10,000 individuals survive, so it is placed in the band 2,500-9,999 individuals here. This equates to 1,667-6,666 mature individuals, rounded here to 1,500-7,000 mature individuals.

Trend Justification:  Buchanan et al. (2008) calculated the rate of forest loss within the species's range on New Britain as 11.2% over ten years.
Current Population Trend:Decreasing
Additional data:
Number of mature individuals:1500-7000Continuing decline of mature individuals:Yes
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:It occurs in lowland and montane forest to 1,250 m, especially along rivers and in mid-montane altitudes, it is less common in tall secondary forest.

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): On New Britain, lowland forest clearance for conversion to oil palm plantations has been intense in recent decades and the island accounts for approximately half of Papua New Guinea's timber exports (Bishop 1983). On that island nearly 15% of habitat suitable for this species has been cleared in the last 15 years and this trend is ongoing (Bishop 1983). It is also sometimes trapped with snares or caught by hunting dogs (G. Dutson pers. obs. 1997).

Conservation Actions [top]

Conservation Actions: Conservation Actions Underway
None is known.

Conservation Actions Proposed
Identify and effectively protect a network of reserves, including some containing large areas of unlogged lowland forest and some large community based conservation areas. Continue to monitor trends in forest loss. Research its tolerance of degraded forest. Research the extent and affect of hunting on populations. Monitor populations in a number of primary forest and degraded forest sites on the island.

Citation: BirdLife International. 2016. Hypotaenidia insignis. The IUCN Red List of Threatened Species 2016: e.T22692421A93352963. . Downloaded on 23 May 2018.
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