Data Zone
Justification of Red List category
This species has a large range, and hence does not 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). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is unknown, 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 global population size has not been quantified, but this species is described as reasonably common but easily overlooked (Schulenberg and Kirwan 2020). It therefore likely numbers far more than 10,000 mature individuals.
Trend justification
The population trend has not been investigated, but declines are suspected on the basis of habitat loss.
Tree cover loss within the range is c. 5% over ten years (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). Habitat degradation may additionally compound population declines above the rate of tree cover loss alone, albeit reduction rates are not thought to exceed 10%, and hence are here tentatively placed in the band 1-9% over ten years.
Phylloscartes gualaquizae occurs in the forests of the east Andes (del Hoyo et al. 2004). It ranges from south Colombia southward through north Sucumbíos and west Napo, Ecuador, to San Martín, north Peru.
This is a humid forest species of the montane and upper tropical forest zones in the Andean foothills. It generally remains below the cloud forest zone, occurring between 700 and 1,400 m (del Hoyo et al. 2004, Schulenberg and Kirwan 2020).
The species is impacted by logging, mining, and clearance of forests for agriculture within its range (Schulenberg and Kirwan 2020).
Conservation Actions Underway
No targeted action is known.
Conservation Actions Proposed
Accurately quantify the population size. Monitor the population trend.
Expand the protected area network to effectively protect key sites. Effectively manage protected areas, utilising emerging opportunities to finance protected area management with the joint aims of reducing carbon emissions and maximizing biodiversity conservation. Incentivise conservation on private lands through expanding market pressures for sound land management and preventing forest clearance on lands unsuitable for agriculture (Soares-Filho et al. 2006).
11-12 cm. Smallish, green tyrannulet. Grey crown and forehead, with a whitish face and throat. Rest of underparts are yellow, and has olive upperparts, with some black on the wings.
Text account compilers
Fernando, E.
Contributors
Butchart, S., Ekstrom, J., Khwaja, N. & Symes, A.
Recommended citation
BirdLife International (2024) Species factsheet: Ecuadorian Tyrannulet Phylloscartes gualaquizae. Downloaded from
https://datazone.birdlife.org/species/factsheet/ecuadorian-tyrannulet-phylloscartes-gualaquizae on 22/11/2024.
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 22/11/2024.