Rhizothera longirostris

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	GALLIFORMES	PHASIANIDAE

Scientific Name:

Rhizothera longirostris

Species Authority:

Ogilvie-Grant, 1905

Common Name/s:

English	–	Long-billed Partridge
Spanish	–	Perdiz Piquilarga

Assessment Information [top]

Red List Category & Criteria:

Near Threatened ver 3.1

Year Published:

2008

Assessor/s:

BirdLife International

Reviewer/s:

Mahood, S., Butchart, S.

Justification:
This species is only recorded with regularity from very few sites and is likely to be undergoing a moderately rapid population reduction due to logging. Despite the rapid habitat destruction taking place within its range, this species is thought to be fairly secure owing to its tolerance of hill forest. It is therefore classified as Near Threatened.

History:

2004

–

Near Threatened

Geographic Range [top]

Range Description:	Rhizothera longirostris occurs as two quite distinct races, the nominate inhabits the Sundaic lowlands of south Tenasserim, Myanmar, peninsular Thailand, East (Sabah) and Peninsular Malaysia, Singapore, Brunei, and Kalimantan and Sumatra, Indonesia, where it is generally uncommon, and dulitensis has a very restricted range, it is confined to Mt Dulit and Mt Batu Song, Sarawak, Indonesia. No population estimates are available, but it is thought to be declining rapidly due to habitat loss and degradation.
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 inhabits primary and old secondary lowland and hill forest and bamboo, up to 1,500 m in some regions, though not above 1,000 in others. The race dulitensis is a highland bird of forest on limestone hills.
Systems:	Terrestrial

Threats [top]

Major Threat(s):	Forest destruction in the Sundaic lowlands of Indonesia and Malaysia has been extensive (Kalimantan lost nearly 25% of its evergreen forest during 1985-1997, and Sumatra lost almost 30% of its 1985 cover), because of a variety of factors, including the escalation of logging and land conversion, with deliberate targeting of all remaining stands of valuable timber including those inside protected areas, plus forest fires (particularly in 1997-1998), and declines are compounded by trapping for the cage-bird industry. However, the species's use of secondary growth and higher elevations implies that it is not immediately threatened.

Major Threat(s):

Forest destruction in the Sundaic lowlands of Indonesia and Malaysia has been extensive (Kalimantan lost nearly 25% of its evergreen forest during 1985-1997, and Sumatra lost almost 30% of its 1985 cover), because of a variety of factors, including the escalation of logging and land conversion, with deliberate targeting of all remaining stands of valuable timber including those inside protected areas, plus forest fires (particularly in 1997-1998), and declines are compounded by trapping for the cage-bird industry. However, the species's use of secondary growth and higher elevations implies that it is not immediately threatened.

Conservation Actions [top]

Conservation Actions:	Conservation Actions Underway It occurs in a number of protected areas including, Taman Negara National Park and Gunung Leuser National Park. Conservation Actions Proposed Survey to assess the population size. Protect large areas of primary and old secondary forest within its range. Investigate the taxonomic status of the race dulitensis.

Conservation Actions:

Conservation Actions Underway
It occurs in a number of protected areas including, Taman Negara National Park and Gunung Leuser National Park.

Conservation Actions Proposed
Survey to assess the population size. Protect large areas of primary and old secondary forest within its range. Investigate the taxonomic status of the race dulitensis.

Citation:	BirdLife International 2008. Rhizothera longirostris. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 23 May 2012.
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