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Arborophila ardens

海南山鹧鸪

Source:IUCN

Taxonomy



 

Taxonomy in detail

Scientific name


 
Authority


 
Synonyms


 
Common names


 
Taxonomic sources
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Identification Information
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Taxonomic notes


 

Assessment Information

IUCN Red List Category and Criteria
Vulnerable A2cd;B1ab(ii,iii,iv,v);C2a(i) ver 3.1
Assessment language
English
Year published
2016
Date assessed
2016-10-01 00:00:00 UTC

Assessment Information in detail

Previously published Red List assessments


 
Regional assessments
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Assessor(s)


 
Reviewer(s)


 
Contributor(s)
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Facilitator(s) / Compiler(s)
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Partner(s) / Institution(s)
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Authority / Authorities
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Justification
This species is listed as Vulnerable because it has a small population, a small, severely fragmented range, and it is continuing to decline because of on-going habitat loss. In addition, it is thought to have undergone a rapid population reduction. However, recent surveys have identified additional populations and a number of new forest areas that hold the species have been designated as protected areas, providing hope that its status may improve in the future.

Geographic Range

Native
Extant (resident)
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Extant
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Number of locations
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Geographic Range in detail

FAO Fishing Areas
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Estimated area of occupancy (AOO) (km²)
Continuing decline in area of occupancy (AOO)
Extreme fluctuations in area of occupancy (AOO)
Estimated extent of occurrence (EOO) (km2)
Continuing decline in extent of occurrence (EOO)
Extreme fluctuations in extent of occurrence (EOO)
Continuing decline in number of locations
Extreme fluctuations in the number of locationsN
RANGE DESCRIPTION
Arborophila ardens is thought to be endemic to Hainan Island, off the south coast of China; reports from the mainland province of Guangxi in the late 1970s were never substantiated (He Fenqi in litt. 2012).  In 1997, a preliminary survey of the core area of Bawangling Nature Reserve tentatively estimated a population density of 6-8 birds per km2. The total area of suitable habitat on Hainan is estimated at c.660 km2, and extrapolating this density estimate to the extent of remaining forest gives a possible population of 3,900-5,200 birds. Further surveys between November 2002 and July 2005 identified a number of new localities; importantly Yinggeling in central-west Hainan has a strong population of this species and primary forest in good condition (Wei et al. 2006).

Population

Current population trend
Decreasing
Number of mature individuals
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Population severely fragmented
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Continuing decline of mature individuals
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Population in detail

Extreme fluctuations
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No. of subpopulations
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Continuing decline in subpopulations
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Extreme fluctuations in subpopulations
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All individuals in one subpopulation
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No. of individuals in largest subpopulation
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Description
A population estimate of 3,900-5,200 individuals has been derived from analyses of records and surveys by BirdLife International (2001). This is roughly equivalent to 2,600-3,500 mature individuals. However, following surveys in 2002-2005 which located a number of new populations, which have been incorporated within newly established protected areas, this figure may be an underestimate.

Habitat and Ecology

System
Terrestrial
Number of mature individuals
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Continuing decline in area, extent and/or quality of habitat
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Generation length (years)
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Congregatory
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Movement patterns
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Habitat and Ecology in detail

Habitat and Ecology
It may be mainly restricted to primary, tropical evergreen forest, both broadleaved and mixed coniferous-broadleaved, usually between 600 m and 1,600 m (Wei Liang in litt. 2004). It is also found in some evergreen forests which have been previously logged, but are now well recovered.

Classification scheme
Habitats Suitability Major importance

Threats

Use trade
Residential & commercial development
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Agriculture & aquaculture
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Energy production & mining
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Transportation & service corridors
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Biological resource use
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Human intrusions & disturbance
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Natural system modifications
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Pollution
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Geological events
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Climate change & severe weather
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Threats in detail

Threats
Forest-cover has been lost and fragmented very rapidly on Hainan in the past 50 years. In the 1940s, the area of natural forest was estimated at up to 17,000 km2, but this had declined to below 3,000 km2 by the 1990s, mainly as a result of excessive timber extraction, the replacement of forest by rubber plantations, shifting agriculture and the unrestricted cutting of wood. Clearance has occurred despite the fact that few local people benefit. Illegal hunting carried out for the market trade rather than local consumption is also a threat (Wei et al. 2006). The effect of projected climate change on the extent and distribution of habitats is a potential long-term threat.

Classification scheme Threats
title scope timing score severity

Use trade

Use trade

Text summary


Text summary in detail

Conservation Actions Information
Conservation Actions Underway
It is a nationally-protected species in China. Suitable forest habitat is estimated to cover a total of c.660 km2, of which c.410 km2 is in reserves. There are populations in Bawangling, Jianfengling, Wuzhishan, Diaoluoshan Limushan and Nanweiling Nature Reserves (Wei Liang in litt. 2004). Recommendations to protect the forests holding the recently discovered partridge populations have been adopted by the Forestry Department of Hainan Province in their entirety, and the Yinggeling Nature Reserve has now become the largest nature reserve on Hainan (Wei et al. 2006). The Hainan government has enforced a ban on the logging of primary forest since January 1994, which should have lessened the pressure on its habitats.

Conservation Actions Proposed
Conduct public awareness programmes on the plight of the threatened and endemic forest wildlife of Hainan, and attempt to reduce hunting through public education and the enforcement of relevant legislation. Assess the ability of the protected area system to safeguard the species in the long term, and add new forests where necessary. Enhance the protection status of existing protected areas (e.g. from county to provincial level) wherever possible, and establish corridors between blocks of suitable habitat.

About us
本项目由中国科学院A类战略先导专项“地球大数据科学工程”及中国科学院十三五信息化建设专项“科学大数据工程”提供支持,旨在整合物种的评估与保护信息,为生物多样性保护提供数据支持。
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