Data Zone
Justification of Red List category
Although this species may have a small range, it is not believed to approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km² combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size may be small, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
Population justification
The species is described as 'fairly common' (Stotz et al. 1996). Assuming that the species occurs at the same density as congeners (1-22 individuals/km2; Santini et al. 2018), the global population may number roughly 2,000-24,000 individuals, equating to 1,300-16,000 mature individuals. The population in Colombia is suspected to number below 2,000 individuals (Renjifo et al. 2016).
Trend justification
The population trend has not been assessed directly. The only threat known to the species is habitat loss and degradation, but forest loss within the range has been negligible over the last ten years (G. Angehr in litt. 2020; Hilty 2020; Global Forest Watch 2021, using Hansen et al. [2013] data and methods disclosed therein). In the absence of evidence for any declines or substantial threats therefore, the population trend is considered to be stable.
The species is fairly common in the region of eastern Darién (Serranía de Pirre, Cerro Mali, Cerro Tacarcuna and the Serranía de Jungurudó), Panama (Isler and Isler 1987, Ridgely and Gywnne 1989, Angehr and Christian 2000, Angehr 2003, Angehr et al. 2004), with a further sight record of one bird near the ridge of Cerro Tacarcuna, north Chocó, Colombia (Pearman 1993).
Most records of this species are from montane evergreen and elfin forests and edge habitats above 1,350 m, although it may rarely occur down to 550 m (Robbins et al. 1985, Isler and Isler 1987, Ridgely and Gywnne 1989), with a pair observed building a nest at c.940 m in the Río Sambú drainage of Darién province (Christian 2001).
This species has a very small range and is therefore inherently at risk from any habitat loss or degradation, but forest within the altitudinal range remains stable to date (G. Angehr in litt. 2020; Global Forest Watch 2021, using Hansen et al. [2013] data and methods disclosed therein). Completion of the Pan-American Highway link through Darién could be highly detrimental to this species (Wege 1996). Since the species is restricted to higher elevations on a few small mountain ranges, it is highly vulnerable to the impacts of global climate change (G. Angehr in litt. 2020).
Conservation Actions Underway
The species's range in Panama, which comprises almost the entire known range, is protected in the Darién National Park (Angehr 2003).
Conservation Actions Proposed
Monitor trends in habitat cover within the species's range to identify potential threats. Campaign against the completion of the planned Darién Pan-American Highway link.
Text account compilers
Hermes, C., Fernando, E.
Contributors
Angehr, G., Bruslund, S., Butchart, S., Gilroy, J., O'Brien, A., Sharpe, C.J. & Wiedenfeld, D.
Recommended citation
BirdLife International (2024) Species factsheet: Green-naped Tanager Tangara fucosa. Downloaded from
https://datazone.birdlife.org/species/factsheet/green-naped-tanager-tangara-fucosa 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.