• 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	B1ab(i,ii,iii)+2ab(i,ii,iii); D2
2016	Vulnerable	D2
2012	Vulnerable	D2
2008	Vulnerable	D2
2006	Vulnerable
2004	Vulnerable
2000	Vulnerable
1994	Lower Risk/Least Concern
1988	Lower Risk/Least Concern

Migratory status	not a migrant	Forest dependency	high
Land-mass type	continent	Average mass	-

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	526 km2	medium
Area of Occupancy (breeding/resident)	452 km2
Number of locations	6-10	-
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	2500-9999 mature individuals	poor	inferred	2021
Population trend	stable	poor	suspected	-
Generation length	3.08 years	-	-	-
Number of subpopulations	2-10	-	-	-
Percentage of mature individuals in largest subpopulation	1-89%	-	-	-

Population justification: The population size has not been quantified, but the species is described as common at known sites (Renjifo et al. 2017; Krabbe and Schulenberg 2020). A preliminary population estimate can be derived from a congener with similar habitat requirements, the Ecuadorian Tapaculo (Scytalopus robbinsi); this species occurs at a density of c. 27 mature individuals per km² in suitable forest (Hermes et al. 2017). Assuming that the Tacarcuna Tapaculo occurs at a similar density throughout its range (260 km²), the population may number 7,020 mature individuals. To account for uncertainty, the population is here placed in the band 2,500-9,999 mature individuals.
The population structure has not been assessed, but based on its small range, in which habitat is not fragmented, it is conceivable that the number of subpopulations is low.

Trend justification: Given that the species is not currently subject to any direct threats, it is suspected to be stable. Even though its specific habitat requirements make it vulnerable to habitat loss and degradation as a result of deforestation, forests within its range remain continuous, intact and not highly threatened (Krabbe and Schulenberg 2020; Global Forest Watch 2021). The species is however susceptible to current and future climate change, as it may result in range contractions and habitat loss and, in future, a potential slow population decline, as is feared in other Scytalopus species (see e.g. Velázquez-Tibatá et al. 2013, Stiles et al. 2017).

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Colombia	extant	native	yes
Panama	extant	native	yes

Country/Territory	IBA Name
Colombia	Capurganá
Panama	Darién National Park

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Montane	major	resident
Altitude	1050 - 1500 m	Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
Agriculture & aquaculture	Annual & perennial non-timber crops - Agro-industry farming	Timing		Scope		Severity		Impact
		Future		Majority (50-90%)		Unknown		Unknown
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Annual & perennial non-timber crops - Small-holder farming	Timing		Scope		Severity		Impact
		Future		Majority (50-90%)		Unknown		Unknown
		Stresses Ecosystem degradation, Ecosystem conversion
Climate change & severe weather	Habitat shifting & alteration	Timing		Scope		Severity		Impact
		Future		Whole (>90%)		Slow, Significant Declines		Low Impact: 5
		Stresses Indirect ecosystem effects, Ecosystem degradation
Energy production & mining	Mining & quarrying	Timing		Scope		Severity		Impact
		Future		Majority (50-90%)		Unknown		Unknown
		Stresses Ecosystem degradation, Ecosystem conversion
Transportation & service corridors	Roads & railroads	Timing		Scope		Severity		Impact
		Future		Majority (50-90%)		Unknown		Unknown
		Stresses Ecosystem degradation, Ecosystem conversion

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Recommended citation
BirdLife International (2024) Species factsheet: Tacarcuna Tapaculo Scytalopus panamensis. Downloaded from https://datazone.birdlife.org/species/factsheet/tacarcuna-tapaculo-scytalopus-panamensis on 23/11/2024.
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 23/11/2024.