Aceros comatus

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	AVES	CORACIIFORMES	BUCEROTIDAE

Scientific Name:

Aceros comatus

Species Authority:

(Raffles, 1822)

Common Name/s:

English

–

White-crowned Hornbill

Assessment Information [top]

Red List Category & Criteria:

Near Threatened ver 3.1

Year Published:

2012

Assessor/s:

BirdLife International

Reviewer/s:

Butchart, S. & Symes, A.

Contributor/s:

Justification:
This scarce forest-dwelling species is likely to be declining moderately rapidly throughout its range as a result of habitat loss. It is therefore considered Near Threatened.

History:

2008	–	Near Threatened
2004	–	Near Threatened

Geographic Range [top]

Range Description:	Aceros comatus is confined to the Sundaic lowlands of south Tenasserim, Myanmar, peninsular and south-west Thailand, Sabah, Sarawak and Peninsular Malaysia, Kalimantan and Sumatra, Indonesia and Brunei, where it is generally uncommon (but possibly overlooked owing to its unobtrusive habits) (BirdLife International 2001).
Countries:	Native: Brunei Darussalam; Indonesia; Malaysia; Myanmar; Thailand
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	The population size of this species has not been quantified, but it has been described as generally uncommon.
Population Trend:	Decreasing

Habitat and Ecology [top]

Habitat and Ecology:	This species occurs in primary semi-evergreen and evergreen forests to 1,675 m, but usually below 600 m. It extends into secondary woodland and plantations in areas with adjacent primary forest.
Systems:	Terrestrial

Threats [top]

Major Threat(s):	Rates of forest loss in the lowlands of Indonesia 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). The magnitude of these threats could have been allayed by this species's tolerance of hill forest, which is under less pressure from logging and agricultural conversion.

Major Threat(s):

Rates of forest loss in the lowlands of Indonesia 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). The magnitude of these threats could have been allayed by this species's tolerance of hill forest, which is under less pressure from logging and agricultural conversion.

Conservation Actions [top]

Conservation Actions:	Conservation Actions Underway CITES II listed. Conservation Actions Proposed Monitor populations across the species's range to determine the magnitude of declines and rates of range contraction. Conduct studies to determine habitat associations and relative abundance in hill forest. Campaign for the protection of remaining tracts of lowland forest throughout the species's range.

Conservation Actions:

Conservation Actions Underway
CITES II listed.

Conservation Actions Proposed
Monitor populations across the species's range to determine the magnitude of declines and rates of range contraction. Conduct studies to determine habitat associations and relative abundance in hill forest. Campaign for the protection of remaining tracts of lowland forest throughout the species's range.

Citation:	BirdLife International 2012. Aceros comatus. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 21 May 2013.
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