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Black-throated Babbler Stachyris nigricollis

Justification
This widespread species is listed as Near Threatened because it is suspected to be in moderately rapid decline as a result of habitat destruction and degradation across its range. It is apparently a successful colonist of some secondary habitats, suggesting that the population decline is not more rapid.

Taxonomic source(s)
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.

Distribution and population
Stachyris nigricollis occurs in the Sundaic lowlands, from peninsular Thailand, Sabah, Sarawak and Peninsular Malaysia, Kalimantan and Sumatra, Indonesia and Brunei. It is uncommon to fairly common across this range, being most abundant in degraded forests in the lowlands of Borneo. It formerly occurred on Singapore, where it has been extinct since the early 1970s at least (D. L. Yong in litt. 2011).

Population justification
The global population size has not been quantified, but the species is described as generally uncommon to fairly common, although common in Borneo and extinct in Singapore (del Hoyo et al. 2007).

Trend justification
This species's population is suspected to be undergoing a moderately rapid decline owing to habitat loss and degradation throughout its range. Its ability to persist in some modified and disturbed habitats suggests that the rate of decline is not more rapid than this.

Ecology
This species occurs in primary and secondary evergreen forest, including freshwater and peatswamp forest, from the lowlands up to 1,000 m. Although it is perhaps most abundant in lightly disturbed forests with luxuriant lower-storey growth (e.g. Edwards et al. 2011), evidence from Singapore suggests that it is unable to persist in secondary forest fragments in the long term (Castelletta et al. 2000). In addition, the species is not found in heavily degraded and disturbed habitats such as degraded peat swamp forest (Posa 2011), plantations and scrub (Peh et al. 2006) or in highly fragmented forest (D. L. Yong in litt. 2011).

Threats
Rates of forest loss in the Sundaic lowlands have been extremely rapid, owing partly to the escalation of illegal logging and land conversion, with deliberate targeting of all remaining stands of valuable timber including those inside protected areas. Forest fires have also had a damaging effect (particularly in 1997-1998). As this species persists in secondary and logged forests, it may not be under immediate threat from selective logging and may be relatively secure in areas where habitat clearance is incomplete, but complete forest clearance (e.g. for plantations and agriculture) remains a real threat.

Conservation Actions Underway
No targeted conservation actions are known for this species, although some of its habitat is protected, e.g. in Taman Negara and Panti Forest Reserve, Peninsular Malaysia (D. L. Yong in litt. 2011).

Conservation Actions Proposed
Conduct ecological studies to improve understanding of its precise habitat requirements and response to fragmentation. Monitor population trends and rates of habitat loss across the range. Effectively protect significant areas of suitable forest at key sites, in both strictly protected areas and community-led multiple use areas.

References
BirdLife International. 2001. Threatened birds of Asia: the BirdLife International Red Data Book. BirdLife International, Cambridge, U.K.

Castelletta, M., Sodhi, N.S., Subaraj, R. 2000. Heavy extinctions of forest avifauna in Singapore: lessons for biodiversity conservation in Southeast Asia. Conservation Biology 14: 1870–1880.

del Hoyo, J.; Elliott, A.; Christie, D. 2007. Handbook of the Birds of the World, vol. 12: Picathartes to Tits and Chickadees. Lynx Edicions, Barcelona, Spain.

Edwards, D.P., Larsen, T.H., Docherty, T.D.S., Ansell, F.A., Hsu, W.W., Derhé, M.A., Hamer, K.C., Wilcove, D.S. 2011. Degraded lands worth protecting: the biological importance of Southeast Asia’s repeatedly logged forests. Proc Biol Sci 278: 82–90.

Peh, K. S. H., Sodhi, N. S., de Jong, J., Sekercioglu, C. H., Yap, C. A. M., and Lim, S. L. H. 2006. Conservation value of degraded habitats for forest birds in southern Peninsular Malaysia. Diversity and Distributions 12(5): 572-581.

Posa, M. 2011. Peat swamp forest avifauna of Central Kalimantan, Indonesia: Effects of habitat loss and degradation. Biological Conservation 114(10): 2548-2556.

Further web sources of information
Detailed species accounts from the Threatened birds of Asia: the BirdLife International Red Data Book (BirdLife International 2001).

Explore HBW Alive for further information on this species

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Text account compilers
Benstead, P., Derhé, M., Gilroy, J., Mahood, S. & Taylor, J.

Contributors
Yong, D. & Duckworth, W.

Recommended citation
BirdLife International (2014) Species factsheet: Stachyris nigricollis. Downloaded from http://www.birdlife.org on 23/08/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 23/08/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Additional resources for this species

ARKive species - Black throated babbler (Stachyris nigricollis) 0

Key facts
Current IUCN Red List category Near Threatened
Family Timaliidae (Babblers and parrotbills)
Species name author (Temminck, 1836)
Population size Unknown mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 171,000 km2
Country endemic? No
Links to further information
- Additional Information on this species