• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

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: https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

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	continent	Average mass	-

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	4,800 km2	medium
Area of Occupancy (breeding/resident)	1,764 km2
Number of locations	11-100	-
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	decreasing	-	inferred	2014-2024
Rate of change over the future 10 years/3 generations (longer of the two periods)	20-29%	-	-	-
Rate of change over the past & future 10 years/3 generations (longer of the two periods)	20-29%	-	-	-
Generation length	2.9 years	-	-	-
Number of subpopulations	2-5	-	-	-
Percentage of mature individuals 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	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Bolivia	extant	native	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
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Livestock farming & ranching - Small-holder grazing, ranching or farming	Timing		Scope		Severity		Impact
		Future		Whole (>90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Ecosystem degradation, Ecosystem conversion

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Recommended citation
BirdLife International (2024) Species factsheet: Berlepsch's Canastero Asthenes berlepschi. Downloaded from https://datazone.birdlife.org/species/factsheet/berlepschs-canastero-asthenes-berlepschi on 23/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 23/12/2024.