LC
Sichuan Treecreeper Certhia tianquanensis



Taxonomy

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.

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

Red List history
Year Category Criteria
2019 Least Concern
2016 Near Threatened B1ab(iii)
2012 Near Threatened B1ab(iii)
2008 Near Threatened B1a+b(iii)
2004 Vulnerable
2000 Not Recognised
1994 Not Recognised
1988 Not Recognised
Species attributes

Migratory status altitudinal migrant Forest dependency High
Land mass type Land-mass type - continent
Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 182,000 medium
Number of locations 11-100 -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 1000-10000 medium suspected 2019
Population trend Unknown poor not applicable -
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 - - -
Largest subpopulations - - -

Population justification: Although the population size of this species remains uncalculated, it has been suggested that it could be widespread in high altitude reserves of the Sichuan arc (B. Anderson in litt. 2016). The species has recently been discovered in areas outside of its previously known range (Rheindt 2004). Data from citizen science platforms have further expanded known occurrences of this species (eBird 2019). While previously estimated to have a population size of about 700 mature individuals, it is likely that this number is in fact much higher.

Trend justification: The population trend is unknown, but there do not appear to be imminent threats with the potential to be driving ongoing declines in the species.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
China (mainland) N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
China (mainland) Jiuzhaigou Nature Reserve
China (mainland) Wolong Nature Reserve
China (mainland) Wawu Shan Nature Reserve
China (mainland) Labahe Nature Reserve
China (mainland) Heishuihe Nature Reserve (Dayi)
China (mainland) Mengtun
China (mainland) Xiaohegou Nature Reserve

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Temperate major resident
Altitude 2500 - 2830 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Biological resource use Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Past, Likely to Return Minority (<50%) Slow, Significant Declines Past Impact
Stresses
Ecosystem degradation
Climate change & severe weather Habitat shifting & alteration Timing Scope Severity Impact
Future Whole (>90%) Unknown Unknown
Stresses
Ecosystem degradation, Ecosystem conversion
Human intrusions & disturbance Recreational activities Timing Scope Severity Impact
Future Minority (<50%) Negligible declines No/Negligible Impact: 2
Stresses
Species disturbance
Natural system modifications Fire & fire suppression - Increase in fire frequency/intensity Timing Scope Severity Impact
Ongoing Minority (<50%) Unknown Unknown
Stresses
Ecosystem degradation

Recommended citation
BirdLife International (2020) Species factsheet: Certhia tianquanensis. Downloaded from http://www.birdlife.org on 28/05/2020. Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 28/05/2020.