LC
Taiwan Partridge Arborophila crudigularis



Taxonomy

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2016 Least Concern
2014 Least Concern
2012 Near Threatened B1ab(iii);C1+2a(i)
2008 Near Threatened B1a+b(iii); C1; C2a(i)
2004 Near Threatened
2000 Lower Risk/Near Threatened
1994 Lower Risk/Near Threatened
1988 Lower Risk/Least Concern
Species attributes

Migratory status not a migrant Forest dependency High
Land mass type Land-mass type - shelf island
Average mass -
Distribution

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 25,000 medium
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals 20000-49999 medium estimated 2014
Population trend Decreasing poor suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Percentage in largest subpopulation - - -
Generation length (yrs) 5.4 - - -

Population justification: The global population size has been estimated at substantially more than 10,000 mature individuals (J. Ko in litt. 2014), thus it is placed in the band for 20,000-49,999 mature individuals, which is assumed to equate to c.30,000-75,000 individuals.

Trend justification: There are no data on population trends; however, habitat loss is suspected to be causing a slow to moderate decline in this species's population.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Taiwan, China N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Taiwan, China Dawushan Nature Reserve and Shuang-guei Lake Major Wildlife Habitat
Taiwan, China Yuli Wildlife Refuge
Taiwan, China North Section of Xueshan Mountain Range, Taoyuan City
Taiwan, China Ruei-yan, Nantou County
Taiwan, China Sanping
Taiwan, China Shei-Pa National Park
Taiwan, China Shihmen Reservoir
Taiwan, China Daxueshan, Xueshankeng, Wushikeng, Taichung City
Taiwan, China Chuyanshan Nature Reserve
Taiwan, China Hapen and Fushan
Taiwan, China Middle Section of Coastal Mountain Range
Taiwan, China Nengdan, Nantou County
Taiwan, China Upstream Section of Beigang River, Nantou County
Taiwan, China Taroko National Park

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Temperate major resident
Altitude 700 - 2300 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops - Agro-industry farming Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem conversion
Biological resource use Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation
Pollution Agricultural & forestry effluents - Type Unknown/Unrecorded Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation

Recommended citation
BirdLife International (2021) Species factsheet: Arborophila crudigularis. Downloaded from http://www.birdlife.org on 03/12/2021. Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 03/12/2021.