Taxonomic note
Thripophaga amacurensis (del Hoyo and Collar 2016) is recognized as a species following work by Hilty et al. (2013).
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.
Critically Endangered | Endangered | Vulnerable |
---|---|---|
- | - | B1ab(ii,iii)+2ab(ii,iii) |
Year | Category | Criteria |
---|---|---|
2022 | Vulnerable | B1ab(ii,iii)+2ab(ii,iii) |
2016 | Endangered | B1ab(iii,v) |
Migratory status | not a migrant | Forest dependency | High |
Land mass type | Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence breeding/resident (km2) | 1,343 | |
Extent of Occurrence breeding/resident (km2) | 1,292 | |
Number of locations | 6-10 | - |
Severely Fragmented | - |
Value | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
No. of mature individuals | unknown | not applicable | not applicable | 0 |
Population trend | Decreasing | 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) | 1-5 | - | - | - |
Decline (10 years/3 generation past and future) | 1-5 | - | - | - |
Number of subpopulations | 1 | - | - | - |
Percentage in largest subpopulation | 100 | - | - | - |
Population justification: The population size of this species has not been quantified. The population is however suspected to be small given the very restricted range.
Due to its very small range, it is assumed that the species forms one subpopulation.
Trend justification: The species is threatened by the loss of its habitat; however its remote range is currently not under immediate threats and forest loss has been negligible over the past ten years (<1%; Global Forest Watch 2021, using Hansen et al. [2013] data and methods disclosed therein). Nevertheless, small parts in the south-west of the range have been deforested for agricultural use (Lentino and Sharpe 2015; Global Forest Watch 2021), and as such the species is suspected to be undergoing a slow decline, the rate of which is unlikely to exceed 5% over ten years.
Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
---|---|---|---|---|---|---|
Venezuela | N | Extant | Yes |
Country/Territory | IBA Name |
---|---|
Venezuela | Reserva Forestal Imataca |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Forest | Subtropical/Tropical Swamp | major | resident |
Altitude | 0 - 100 m | Occasional altitudinal limits |
Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
---|---|---|---|---|---|---|---|---|---|
Agriculture & aquaculture | Annual & perennial non-timber crops - Shifting agriculture | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
|
|||||||||
Biological resource use | Logging & wood harvesting - Unintentional effects: (large scale) [harvest] | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Causing/Could cause fluctuations | Low Impact: 5 | ||||||
|
|||||||||
Energy production & mining | Oil & gas drilling | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
|
Recommended citation
BirdLife International (2023) Species factsheet: Thripophaga amacurensis. Downloaded from
http://www.birdlife.org on 02/02/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 02/02/2023.