Data Zone
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.
SACC. 2005 and updates. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.htm#.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2021 | Near Threatened | A3c+4c; B1ab(i,ii,v)+2ab(i,ii,v) |
| 2018 | Near Threatened | D2 |
| 2016 | Near Threatened | D2 |
| 2012 | Near Threatened | D2 |
| 2008 | Near Threatened | D2 |
| 2004 | Near Threatened | |
| 2000 | Lower Risk/Near Threatened | |
| 1996 | Vulnerable | |
| 1994 | Vulnerable | |
| 1988 | Lower Risk/Least Concern |
| Migratory status | not a migrant | Forest dependency | Low |
| Land mass type |
Land-mass type - continent |
Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 4,800 | medium |
| Extent of Occurrence breeding/resident (km2) | 1,764 | |
| Number of locations | 11-100 | - |
| Severely Fragmented | - |
| Value | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| No. of mature individuals | unknown | not applicable | not applicable | 0 |
| Population trend | Decreasing | inferred | - | |
| Decline (3 years/1 generation past) | - | - | - | |
| Decline (5 years/1 generation past) | - | - | - | |
| Decline (10 years/1 generation past) | - | - | - | |
| Decline (10 years/3 generation future) | 20-29 | - | - | - |
| Decline (10 years/3 generation past and future) | 20-29 | - | - | - |
| Number of subpopulations | 2-5 | - | - | - |
| Percentage in largest subpopulation | 1-89 | - | - | - |
Population justification: This is a poorly known species and no population estimates are available. It is described a common (Remsen 2020).
Based on observational records (eBird 2020), the species is assumed to form at least two subpopulations.
Trend justification: Despite its tolerance of heavily degraded habitat, the species's distribution range is projected to contract with climate change, which will likely cause the population to decline. Modelling revealed that by the year 2080, the range will contract by 91-95%, depending on dispersal scenarios (Avalos and Hernández 2015). Nevertheless, this result needs to be treated with caution due to low sample size inflating the range contraction (Avalos and Hernández 2015). Furthermore, as the species is able to persist in converted habitats without any native vegetation (Remsen 2020), the rate of decline is here tentatively placed in the band 20-29% over ten years.
| Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|---|
| Bolivia | N | Extant | Yes |
| Country/Territory | IBA Name |
|---|---|
| Bolivia | Tacacoma-Quiabaya y Valle de Sorata |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Arable Land | suitable | resident |
| Artificial/Terrestrial | Pastureland | suitable | resident |
| Artificial/Terrestrial | Rural Gardens | suitable | resident |
| Artificial/Terrestrial | Urban Areas | suitable | resident |
| Forest | Subtropical/Tropical Moist Montane | suitable | resident |
| Shrubland | Subtropical/Tropical High Altitude | major | resident |
| Altitude | 2300 - 3700 m | Occasional altitudinal limits |
| Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Agriculture & aquaculture | Annual & perennial non-timber crops - Small-holder farming | Timing | Scope | Severity | Impact | ||||
| Future | Whole (>90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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| Agriculture & aquaculture | Livestock farming & ranching - Small-holder grazing, ranching or farming | Timing | Scope | Severity | Impact | ||||
| Future | Whole (>90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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Recommended citation
BirdLife International (2023) Species factsheet: Asthenes berlepschi. Downloaded from
http://www.birdlife.org on 21/03/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 21/03/2023.
