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

Taxonomic note

Dubusia taeniata, D. carrikeri and D. stictocephala (del Hoyo and Collar 2016) were previously lumped as D. taeniata following SACC (2005 & updates); Sibley and Monroe (1990, 1993); Stotz et al. (1996).

 

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.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2024	Near Threatened	B1b(ii,iii); C1+2a(ii)
2016	Endangered	C2a(ii)
2012	Not Recognised
2008	Not Recognised
2004	Not Recognised
2000	Not Recognised
1994	Not Recognised
1988	Not Recognised

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

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	5,640 km2	medium
Area of Occupancy (breeding/resident)	4,260 km2
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	1000-2499 mature individuals	poor	suspected	2016
Population trend	decreasing	-	suspected	2015-2025
Rate of change over the past 10 years/3 generations (longer of the two periods)	1-9%	-	-	-
Rate of change over the future 10 years/3 generations (longer of the two periods)	10-19%	-	-	-
Rate of change over the past & future 10 years/3 generations (longer of the two periods)	10-19%	-	-	-
Generation length	3.2 years	-	-	-
Number of subpopulations	1	-	-	-
Percentage of mature individuals in largest subpopulation	100%	-	-	-

Population justification: This species has been described as very rare and uncommon (T. Donegan in litt. 2016, Hilty 2021). There is no quantification of the population size, but it is suspected to fall in the band 1,000-2,499 mature individuals.

Trend justification: Due to its restriction to mature forests, the species is suspected to undergo a slow decline as a consequence of the loss and degradation of habitat due to ongoing small-scale logging events within its range (see Global Forest Watch 2023).
Within the range, tree cover was lost at a rate of 2% over the past ten years (Global Forest Watch 2023, using Hansen et al. [2013] data and methods disclosed therein). This value does not account for the additional impacts of forest degradation; consequently, the overall rate of habitat loss may have been steeper. An analysis of overall habitat loss caused by deforestation within the range projects a reduction by 24% between 2015 and 2040 (Negret et al. 2021); this equates to 10% over ten years from 2015 onward. As the species is described as sensitive to disturbance population declines may be higher than the rate of habitat loss; they are here tentatively placed in the band 1-9% over the past ten years, and suspected to accelerate to 10-19% over the ten years from 2015 onward.

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

Country/Territory	IBA Name

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Montane	major	resident
Altitude	2200 - 3500 m	Occasional altitudinal limits	(min) 1400 m

Threat (level 1)	Threat (level 2)	Impact and Stresses
Agriculture & aquaculture	Annual & perennial non-timber crops - Small-holder farming	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem conversion
Agriculture & aquaculture	Livestock farming & ranching - Small-holder grazing, ranching or farming	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Wood & pulp plantations - Small-holder plantations	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem conversion
Biological resource use	Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest]	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion
Natural system modifications	Fire & fire suppression - Increase in fire frequency/intensity	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Ecosystem degradation
Pollution	Agricultural & forestry effluents - Herbicides and pesticides	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Indirect ecosystem effects

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Recommended citation
BirdLife International (2024) Species factsheet: Carriker's Mountain-tanager Dubusia carrikeri. Downloaded from https://datazone.birdlife.org/species/factsheet/carrikers-mountain-tanager-dubusia-carrikeri on 22/12/2024.
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 22/12/2024.