IUCN Red List Criteria
| Critically Endangered |
|
| Endangered |
|
| Vulnerable |
C2a(i) |
IUCN Red List history
| Year |
Category |
| 2012 |
Vulnerable |
| 2008 |
Vulnerable |
| 2004 |
Vulnerable |
| 2000 |
Vulnerable |
| 1994 |
Lower Risk/Least Concern |
| 1988 |
Lower Risk/Least Concern |
Species attributes
| Migratory status |
full migrant |
Forest dependency |
Does not normally occur in forest |
| Land mass type |
shelf island
|
Average mass |
- |
Distribution
| |
Estimate |
Data quality |
| Extent of Occurrence breeding/resident (km2) |
1,100 |
medium |
| Extent of Occurrence non-breeding (km2) |
1,100 |
medium |
| Number of locations |
11-100 |
- |
| Fragmentation |
|
- |
Population & trend
| |
Estimate |
Data quality |
Derivation |
Year of estimate |
| No. of mature individuals |
2500-9999 |
poor |
Estimated |
2000 |
| Population trend |
Decreasing |
poor |
|
- |
| Number of subpopulations |
2-100 |
- |
- |
- |
| Largest subpopulation |
251-1000 |
- |
- |
- |
| Generation length (yrs) |
3.7 |
- |
- |
- |
|
Population justification: The global population size is 'unlikely to be much more than a few thousand individuals' (BirdLife International 2001), while national population estimates include: < c.100 breeding pairs and < c.1,000 individuals on migration in China; < c.50 individuals on migration and < c.50 wintering individuals in Taiwan; c.100-10,000 breeding pairs and c.50-1,000 individuals on migration in Korea; c.100-10,000 breeding pairs and c.50-1,000 individuals on migration in Japan and c.100-10,000 breeding pairs and c.50-1,000 individuals on migration in Russia (Brazil 2009). The total population is placed in the band 2,500-9,999 mature individuals, equating to 3,750-14,999 individuals, rounded here to 3,500-15,000 individuals. |
|
Trend justification: Various human activities are negatively affecting both breeding and wintering habitats for this species, suggesting that moderate population declines are likely to be continuing. |
Country/Territory distribution
| Country/Territory |
Occurrence status |
Extinct |
Breeding |
Non-breeding |
Passage |
| China (mainland) |
Native |
No |
Yes |
|
Yes |
| Hong Kong (China) |
Native |
No |
|
Yes |
|
| Japan |
Native |
No |
Yes |
|
|
| North Korea |
Vagrant |
No |
|
|
|
| Russia |
Native |
No |
|
|
|
| Russia (Asian) |
Native |
No |
Yes |
|
|
| South Korea |
Native |
No |
Yes |
|
|
| Vietnam |
Native |
No |
|
Yes |
|
Important Bird Areas where this species has triggered the IBA criteria
| Country/Territory |
IBA Name |
IBA link |
| Hong Kong (China) |
Inner Deep Bay and Shenzhen River catchment area |
 |
| Japan |
Aogashima island |
|
| Japan |
Birojima islet |
|
| Japan |
Danjo islands |
|
| Japan |
Hachijojima island |
|
| Japan |
Hakata bay |
|
| Japan |
Kii Nagashima islets |
|
| Japan |
Koshikijima islands |
|
| Japan |
Kozushima island |
|
| Japan |
Mikurajima island |
|
| Japan |
Miyakejima island |
|
| Japan |
Niijima and Shikinejima Islands |
|
| Japan |
Okikojima islet |
|
| Japan |
Okinoshima islets |
|
| Japan |
Oshima island |
|
| Japan |
Toshima island |
|
| Japan |
Tsukuejima islets |
|
| Japan |
Tsushima islands |
|
| Russia (Asian) |
Islands in Peter the Great bay |
|
| South Korea |
Chilbal-do island |
|
| South Korea |
Kukul-do island |
|
Habitats & altitude
| Habitat (level 1) |
Habitat (level 2) |
Importance |
Occurrence |
| Shrubland |
Subtropical/Tropical Dry |
major |
breeding |
| Shrubland |
Temperate |
major |
breeding |
| Wetlands (inland) |
Bogs, Marshes, Swamps, Fens, Peatlands |
major |
non-breeding |
|
Altitude
|
0 - 350 m
|
Occasional altitudinal limits
|
|
Threats & impact
| Threat (level 1) |
Threat (level 2) |
Impact and Stresses |
| Residential & commercial development |
Tourism & recreation areas |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Slow, Significant Decline |
Medium Impact: |
| Stresses |
|---|
| Species disturbance, Ecosystem degradation, Ecosystem conversion |
|
| Agriculture & Aquaculture |
Annual & perennial non-timber crops / Agro-industry farming |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Slow, Significant Decline |
Low Impact: 5 |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Biological resource use |
Hunting & trapping terrestrial animals / Intentional use (species is the target) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Slow, Significant Decline |
Low Impact: 5 |
| Stresses |
|---|
| Species mortality |
|
| Pollution |
Domestic & urban waste water / Type Unknown/Unrecorded |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Slow, Significant Decline |
Low Impact: 5 |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion, Reduced reproductive success, Species mortality |
|
| Geological events |
Volcanoes |
Timing |
Scope |
Severity |
Impact |
| Past, Likely to Return |
Minority (<50%) |
Very Rapid Declines |
Past Impact |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
Recommended citation
BirdLife International (2013) Species factsheet: Locustella pleskei. Downloaded from
http://www.birdlife.org on 23/05/2013.
Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 23/05/2013.
This information is based upon, and updates, the information published in BirdLife International (2000)
Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004)
Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.
To provide new information to update this factsheet or to correct any errors, please email BirdLife
To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.
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