IUCN Red List Criteria
| Critically Endangered |
|
| Endangered |
|
| Vulnerable |
A4bcd |
IUCN Red List history
| Year |
Category |
| 2012 |
Vulnerable |
| 2010 |
Vulnerable |
| 2009 |
Least Concern |
| 2008 |
Least Concern |
| 2004 |
Least Concern |
| 2000 |
Lower Risk/Least Concern |
| 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 |
|
Average mass |
- |
Distribution
| |
Estimate |
Data quality |
| Extent of Occurrence breeding/resident (km2) |
1,490,000 |
medium |
| Extent of Occurrence non-breeding (km2) |
2,090,000 |
medium |
| Number of locations |
|
- |
| Fragmentation |
|
- |
Population & trend
| |
Estimate |
Data quality |
Derivation |
Year of estimate |
| No. of mature individuals |
|
medium |
Estimated |
2009 |
| Population trend |
Decreasing |
medium |
|
- |
| Number of subpopulations |
|
- |
- |
- |
| Largest subpopulation |
|
- |
- |
- |
| Generation length (yrs) |
7.4 |
- |
- |
- |
|
Population justification: The global population has been estimated to number c.380,000 individuals (Wetlands International, 2006). Following the reclamation of the tidal flats at Saemanguem, c.90,000 non-breeding individuals disappeared from the area. Surveys elsewhere in South Korea confirmed they had not been displaced, and a decline of the same magnitude and timing in Australia suggests that individuals previously using Saemanguem have died (D. Rogers in litt. 2009). Therefore a global population of c.290,000 individuals is estimated, though given documented declines elsewhere the true figure is likely to be lower. National population estimates include: < c.10,000 individuals on migration and < c.1,000 wintering individuals in China; c.1,000-10,000 individuals on migration and < c.50 wintering individuals in Taiwan; c.50-10,000 individuals on migration in Japan and c.10,000-100,000 breeding pairs and > c.10,000 individuals on migration in Russia (Brazil 2009). |
|
Trend justification: Reclamation of Saemangeum alone has caused a decline of c.90,000 individuals, equating to a population decline of approximately 25% since 2000 (N. Moores in litt. 2009; D. Rogers in litt. 2009). Furthermore there have been documented declines in some of the peripheral sites for the species in Australia and Japan (Amano 2006; R. Clemens in litt. 2010). Given that reclamation in the Yellow Sea is not restricted to Saemangeum and many more reclamation projects are proposed within the region, it is reasonable to assume that declines will continue in the future, hence a precautionary decline of 30-49% over 22 years (three generations) is estimated. |
Country/Territory distribution
| Country/Territory |
Occurrence status |
Extinct |
Breeding |
Non-breeding |
Passage |
| Australia |
Native |
No |
|
|
|
| Bahrain |
Vagrant |
No |
|
Yes |
|
| Bangladesh |
Native |
No |
|
|
|
| Brunei |
Native |
No |
|
|
|
| China (mainland) |
Native |
No |
|
Yes |
|
| Denmark |
Vagrant |
No |
|
|
|
| Djibouti |
Vagrant |
No |
|
|
|
| Germany |
Vagrant |
No |
|
|
|
| Guam (to USA) |
Native |
No |
|
Yes |
|
| Hong Kong (China) |
Native |
No |
|
|
|
| India |
Native |
No |
|
|
|
| Indonesia |
Native |
No |
|
|
|
| Iran, Islamic Republic of |
Native |
No |
|
Yes |
|
| Ireland |
Vagrant |
No |
|
|
|
| Israel |
Vagrant |
No |
|
|
|
| Japan |
Native |
No |
|
|
|
| Kuwait |
Native |
No |
|
Yes |
|
| Malaysia |
Native |
No |
|
|
|
| Mauritius |
Vagrant |
No |
|
|
|
| Micronesia, Federated States of |
Native |
No |
|
Yes |
|
| Morocco |
Vagrant |
No |
|
|
|
| Myanmar |
Native |
No |
|
|
|
| Netherlands |
Vagrant |
No |
|
|
|
| New Caledonia (to France) |
Vagrant |
No |
|
|
|
| New Zealand |
Vagrant |
No |
|
|
|
| North Korea |
Native |
No |
|
|
|
| Northern Mariana Islands (to USA) |
Native |
No |
|
Yes |
|
| Norway |
Vagrant |
No |
|
|
|
| Oman |
Native |
No |
|
Yes |
|
| Pakistan |
Native |
No |
|
|
|
| Palau |
Native |
No |
|
Yes |
|
| Papua New Guinea |
Native |
No |
|
|
|
| Philippines |
Native |
No |
|
|
|
| Qatar |
Vagrant |
No |
|
|
|
| Russia (Asian) |
Native |
No |
|
|
|
| Saudi Arabia |
Native |
No |
|
|
Yes |
| Seychelles |
Vagrant |
No |
|
|
|
| Singapore |
Native |
No |
|
|
|
| South Korea |
Native |
No |
|
|
|
| Spain |
Vagrant |
No |
|
|
|
| Sri Lanka |
Native |
No |
|
|
|
| Taiwan (China) |
Native |
No |
|
|
|
| Thailand |
Native |
No |
|
|
|
| Timor-Leste |
Native |
No |
|
Yes |
Yes |
| United Arab Emirates |
Native |
No |
|
Yes |
Yes |
| United Kingdom |
Vagrant |
No |
|
|
|
| USA |
Vagrant |
No |
|
|
|
| Vietnam |
Native |
No |
|
|
|
| Yemen |
Vagrant |
No |
|
|
Yes |
Important Bird Areas where this species has triggered the IBA criteria
| Country/Territory |
IBA Name |
IBA link |
| Australia |
Anson Bay, Daly and Reynolds River Floodplains |
 |
| Australia |
Arafura Swamp |
|
| Australia |
Cadell and Blyth Floodplains |
|
| Australia |
Eighty Mile Beach |
|
| Australia |
Fog Bay and Finniss River Floodplains |
|
| Australia |
Great Sandy Strait |
|
| Australia |
Gulf Plains |
|
| Australia |
Limmen Bight |
|
| Australia |
Milingimbi Islands |
|
| Australia |
Moreton Bay and Pumicestone Passage |
|
| Australia |
Repulse Bay to Ince Bay |
|
| Australia |
Roebuck Bay |
|
| Australia |
Shoal Bay (Darwin) |
|
| Australia |
Tiwi Islands |
|
| China (mainland) |
Chongming Dongtan Nature Reserve |
|
| China (mainland) |
Lianyungang saltworks |
|
| China (mainland) |
Shuangtai (Shuangtaizi) Estuary and Inner Gulf of Liaodong |
|
| China (mainland) |
Taizhou Wan |
|
| China (mainland) |
Xuanmen Wan |
|
| China (mainland) |
Yalu Jiang Estuary |
|
| China (mainland) |
Yong Jiang Estuary |
|
| Malaysia |
Sadong-Saribas coast |
|
| Oman |
Barr al Hikman |
|
| Russia (Asian) |
Babushkina bay |
|
| Russia (Asian) |
Khayryuzova bay |
|
| Russia (Asian) |
Malkachan tundra |
|
| Russia (Asian) |
Moroshechnaya river |
|
| Russia (Asian) |
Rekinninskaya bay |
|
| Saudi Arabia |
Tarut Bay |
|
| South Korea |
Asan Bay (including Asan-ho lake and Sapgyo-ho lake) |
|
| South Korea |
Dongjin estuary |
|
| South Korea |
Geum-gang river and estuary |
|
| South Korea |
Mangyeong estuary |
|
| South Korea |
Namyang Bay |
|
| South Korea |
Tidal flat area of Yeongjong-do island |
|
| South Korea |
Yubu-do island |
|
| United Arab Emirates |
Khor al Beideh |
|
Habitats & altitude
| Habitat (level 1) |
Habitat (level 2) |
Importance |
Occurrence |
| Grassland |
Subarctic |
suitable |
breeding |
| Grassland |
Tundra |
suitable |
breeding |
| Marine Coastal/Supratidal |
Coastal Brackish/Saline Lagoons/Marine Lakes |
suitable |
non-breeding |
| Marine Intertidal |
Mud Flats and Salt Flats |
major |
non-breeding |
| Marine Intertidal |
Sandy Shoreline and/or Beaches, Sand Bars, Spits, Etc |
suitable |
non-breeding |
| Marine Neritic |
Estuaries |
suitable |
non-breeding |
|
Altitude
|
300 - 1600 m
|
Occasional altitudinal limits
|
|
Threats & impact
| Threat (level 1) |
Threat (level 2) |
Impact and Stresses |
| Residential & commercial development |
Commercial & industrial areas |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Slow, Significant Decline |
Low Impact: 5 |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Residential & commercial development |
Housing & urban areas |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Slow, Significant Decline |
Low Impact: 5 |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Residential & commercial development |
Tourism & recreation areas |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Slow, Significant Decline |
Low Impact: 5 |
| Stresses |
|---|
| Species disturbance |
|
| Energy production & mining |
Renewable energy |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Rapid Declines |
Medium Impact: |
| 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 |
|
| Natural system modifications |
Dams & water management/use / Abstraction of surface water (commercial use) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Rapid Declines |
Medium Impact: |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Pollution |
Industrial & military effluents / Oil spills |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Slow, Significant Decline |
Low Impact: 5 |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Climate change & severe weather |
Habitat shifting & alteration |
Timing |
Scope |
Severity |
Impact |
| Future |
Whole (>90%) |
Unknown |
Unknown |
| Stresses |
|---|
| Indirect ecosystem effects, Ecosystem degradation, Ecosystem conversion |
|
Recommended citation
BirdLife International (2013) Species factsheet: Calidris tenuirostris. Downloaded from
http://www.birdlife.org on 24/05/2013.
Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 24/05/2013.
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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