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Description |
Geographic Range [top]
Range Description: Caloperdix oculeus ranges from south-eastern Myanmar and south-western Thailand through Peninsular Malaysia onto Sumatra, Indonesia, with isolated populations in Borneo in northern Sarawak and eastern Sabah, Malaysia. It is generally scarce throughout its range, although it can be locally moderately common, e.g. in the Kandang River area, Jambi, Sumatra (I. Mauro in litt. 2003), and is likely to be declining overall.
Countries occurrence:
Native:
Indonesia; Malaysia; Myanmar; Thailand
Continuing decline in area of occupancy (AOO): Unknown
Extreme fluctuations in area of occupancy (AOO): No
Estimated extent of occurrence (EOO) - km2: 422000
Continuing decline in extent of occurrence (EOO): Unknown
Extreme fluctuations in extent of occurrence (EOO): No
Continuing decline in number of locations: Unknown
Extreme fluctuations in the number of locations: No
Upper elevation limit (metres): 1200
Range Map: Click here to open the map viewer and explore range.
Population [top]
Population: The global population size has not been quantified, but the species is described as very rare in southern Thailand (Madge and McGowan 2002).
Trend Justification: There are no data on population trends, but the species is likely to be in decline at a moderately rapid rate, owing primarily to habitat loss and degradation, and to some extent trapping pressure.
Current Population Trend: Decreasing
Additional data:
?Number of mature individuals: Unknown ?Continuing decline of mature individuals: Unknown
?Extreme fluctuations: No ?Population severely fragmented: No
?Continuing decline in subpopulations: Unknown
?Extreme fluctuations in subpopulations: No ?All individuals in one subpopulation: No
Habitat and Ecology [top]
Habitat and Ecology: This species inhabits evergreen and semi-evergreen rainforests, including swampy areas, dry hill forest and secondary forest with sufficient bamboo. It has been recorded to 1,200 m.
Systems: Terrestrial
Continuing decline in area, extent and/or quality of habitat: Unknown
Generation Length (years): 5
Movement patterns: Not a Migrant
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). Declines driven by habitat loss and degradation are compounded by trapping for the cage-bird industry. However, the species use of secondary growth and higher elevations implies that it is not immediately threatened.
Conservation Actions [top]
Conservation Actions: Conservation Actions Underway
None is known.
Conservation Actions Proposed
Survey to assess the size of all sub-populations. Regularly monitor trends in all sub-populations. Asses the effect of hunting on populations. Protect large areas of forest in areas where it occurs.
Citation: BirdLife International. 2012. Caloperdix oculeus. The IUCN Red List of Threatened Species 2012: e.T22679094A37842307. http://dx.doi.org/10.2305/IUCN.UK.2012-1.RLTS.T22679094A37842307.en. Downloaded on 10 March 2016.
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