EN
Jankowski's Bunting Emberiza jankowskii



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
- A2bc+3bc+4bc A2bc+3bc+4bc; D1

Red List history
Year Category Criteria
2018 Endangered A2bc+3bc+4bc
2016 Endangered A2bc+3bc+4bc
2012 Endangered A2bc+3bc+4bc
2010 Endangered A2b,c; A3b,c; A4b,c
2009 Vulnerable A2b,c; A3b,c; A4b,c; C2a(i); D1
2008 Vulnerable
2004 Vulnerable
2000 Vulnerable
1996 Vulnerable
1994 Vulnerable
1988 Near Threatened
Species attributes

Migratory status not a migrant Forest dependency Does not normally occur in forest
Land mass type Land-mass type - continent
Average mass -
Distribution

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 25,800 medium
Extent of Occurrence non-breeding (km2) 139,000 medium
Number of locations 2-5 -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals 250-999 medium estimated 2008
Population trend Decreasing medium estimated -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) 50-79 - - -
Decline (10 years/3 generation past and future) 50-79 - - -
Number of subpopulations 2-100 - - -
Percentage in largest subpopulation 1-89 - - -
Generation length (yrs) 3.6 - - -

Population justification: The total population is likely to be fewer than 500 pairs, assuming that there are currently unknown populations remaining elsewhere, but may now be considerably fewer than 200 pairs (Wang Ruiqing and Li Fei 2008). It is placed in the band 250-999 mature individuals, equating to 375-1,499 individuals in total, rounded here to 350-1,500 individuals. National population sizes have been estimated at c.100-10,000 breeding pairs, c.50-1,000 individuals on migration and c.50-1,000 wintering individuals in China and < c.100 breeding pairs and < c.50 individuals on migration in Korea (Brazil 2009).

Trend justification: Although a series of accurate population surveys are lacking, reports of extremely rapid declines in many locations where the species was formerly abundant suggests a decline of 50-79% over 11 years (three generations) (Wang Ruiqing and Li Fei 2008).


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

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
China (mainland) Jingpo Hu Nature Reserve
China (mainland) Beidagang
China (mainland) Yematu
China (mainland) Xianghai Nature Reserve
China (mainland) Yaojingzi Nature Reserve
China (mainland) Tumen River at Jingxin-Fangchuan
Russia (Asian) Lower Tumen river

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Grassland Temperate major resident
Shrubland Temperate suitable resident
Altitude   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 Majority (50-90%) Rapid Declines Medium Impact: 7
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Livestock farming & ranching - Agro-industry grazing, ranching or farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Rapid Declines Medium Impact: 7
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Wood & pulp plantations - Scale Unknown/Unrecorded Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Human intrusions & disturbance Work & other activities Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Species disturbance, Ecosystem degradation
Invasive and other problematic species, genes & diseases Problematic native species/diseases Timing Scope Severity Impact
Ongoing Minority (<50%) Unknown Unknown
Stresses
Reduced reproductive success, Species mortality
Natural system modifications Dams & water management/use - Large dams Timing Scope Severity Impact
Future Minority (<50%) Slow, Significant Declines Low Impact: 4
Stresses
Ecosystem conversion
Natural system modifications Fire & fire suppression - Increase in fire frequency/intensity Timing Scope Severity Impact
Past, Likely to Return Minority (<50%) Slow, Significant Declines Past Impact
Stresses
Ecosystem degradation, Reduced reproductive success
Residential & commercial development Commercial & industrial areas Timing Scope Severity Impact
Past, Likely to Return Minority (<50%) Unknown Past Impact
Stresses
Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2021) Species factsheet: Emberiza jankowskii. Downloaded from http://www.birdlife.org on 26/10/2021. Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 26/10/2021.