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Zoothera talaseae

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA CHORDATA AVES PASSERIFORMES TURDIDAE

Scientific Name: Zoothera talaseae
Species Authority: (Rothschild & Hartert, 1926)
Common Name(s):
English New Britain Thrush, Black-backed Thrush

Assessment Information [top]

Red List Category & Criteria: Near Threatened ver 3.1
Year Published: 2012
Date Assessed: 2012-05-01
Assessor(s): BirdLife International
Reviewer(s): Butchart, S. & Symes, A.
Contributor(s): Dutson, G.
Facilitator/Compiler(s): Derhé, M., Dutson, G., Mahood, S., O'Brien, A.
Justification:
This enigmatic species is classified as Near Threatened because it is thought to have a moderately small population on three islands, and numbers are likely to be declining owing predation by introduced mammals.

Geographic Range [top]

Range Description: Zoothera talaseae is a very infrequently recorded species of Umboi, New Britain and Bougainville islands in Papua New Guinea. It has only been recorded once on Umboi, at 1,300 m (Diamond 1976), and from about four mountains between 580-1,430 m on New Britain (Coates 1990, G. Dutson pers. obs. 1997-1998, D. Gibbs verbally 1998). The subspecies atrigena of Bougainville, which may prove to be a separate species, is known only from the type-locality at 1,500 m  in one region in the Crown Prince Range (Hadden 1981, Ripley and Hadden 1982). As with other Zoothera spp., it is a very secretive species and is likely to have been under-recorded. However, it does appear to have a moderately small total population size.

Countries:
Native:
Papua New Guinea
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: The population is placed in the band 2,500-9,999 mature individuals, equating to 3,750-14,999 individuals in total, rounded here to 3,500-15,000 individuals.
Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: It inhabits montane forest between 600 - 1,500 m. Singles recorded on ground, flushing off with low fast whirring flight. The subspecies Z. atrigena has been reported to feed in gardens of taro (Araceae crops) within montane forest (Dutson 2011).

Systems: Terrestrial

Threats [top]

Major Threat(s): Although its montane forest habitat is relatively secure, its terrestrial habits may render it susceptible to introduced mammalian predators. The species has a high dependence on primary forest, and so forest loss and degradation may be a low threat. Buchanan et al. (2008) calculated the rate of forest loss within the species's range on New Britain as 4.5% over three generations.

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 montane forest and some large community-based conservation areas. Continue to monitor trends in forest loss. Research its tolerance of degraded forest. Research the effects of introduced predators on populations. Re-discover the subspecies atrigena. Investigate the taxonomic status of the two taxa.


Citation: BirdLife International 2012. Zoothera talaseae. The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 25 October 2014.
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