Rhinoplax vigil

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:

Rhinoplax vigil

Species Authority:

(Forster, 1781)

Common Name/s:

English	–	Helmeted Hornbill
Spanish	–	Cálao de Casco

Assessment Information [top]

Red List Category & Criteria:

Near Threatened ver 3.1

Year Published:

2008

Assessor/s:

BirdLife International

Reviewer/s:

Gilroy, J., Butchart, S.

Justification:
This forest-dependent species is likely to be declining moderately rapidly throughout its range as a result of habitat loss and hunting pressure. It is considered Near Threatened, and should be carefully monitored in case of future increases in the rate of decline.

History:

2004

–

Near Threatened

Geographic Range [top]

Range Description:	Rhinoplax vigil is confined to the Sundaic lowlands, where it is known from south Tenasserim, Myanmar, peninsular Thailand, Sabah, Sarawak and Peninsular Malaysia, Singapore, Kalimantan and Sumatra, Indonesia and Brunei. It is generally scarce and occurs at low densities even in optimal habitat.
Countries:	Native: Brunei Darussalam; Indonesia; Malaysia; Myanmar; Thailand
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population Trend:	Decreasing

Population Trend:

Decreasing

Habitat and Ecology [top]

Habitat and Ecology:	It occurs in primary semi-evergreen and evergreen lowland forest, up to 1,500 m. In particular, it prefers rugged terrain, especially in foothills, and can persist locally in selectively logged forest.
Systems:	Terrestrial

Threats [top]

Major Threat(s):	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). The magnitude of these threats may be allayed by this species's tolerance of hill forest, which is under less pressure from logging and agricultural conversion. It is prized by hunters, although centuries of hunting have meant that it is very shy and wary, and therefore capture rates may be relatively low.

Major Threat(s):

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). The magnitude of these threats may be allayed by this species's tolerance of hill forest, which is under less pressure from logging and agricultural conversion. It is prized by hunters, although centuries of hunting have meant that it is very shy and wary, and therefore capture rates may be relatively low.

Conservation Actions [top]

Conservation Actions:	Conservation Actions Underway CITES I listed. Conservation Actions Proposed Monitor populations across the range to determine the magnitude of declines and rates of range contraction. Monitor the impact of hunting pressure on populations. Campaign for the protection of remaining tracts of lowland forest throughout the range.

Conservation Actions:

Conservation Actions Underway
CITES I listed.

Conservation Actions Proposed
Monitor populations across the range to determine the magnitude of declines and rates of range contraction. Monitor the impact of hunting pressure on populations. Campaign for the protection of remaining tracts of lowland forest throughout the range.

Citation:	BirdLife International 2008. Rhinoplax vigil. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 24 May 2012.
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