Justification of Red List category
Although this species may have a restricted 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). 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 criterio (>30% decline over ten years or three generations). The population size has not been quantified, 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 the pre-split species has been described as 'common' (Stotz et al. 1996).
Trend justification
The species is feared to undergo a decline as a consequence of the loss and fragmentation of its habitat.
Over ten years, up to 15% of tree cover with 30% canopy are lost within the range (Global Forest Watch 2021, using Hansen et al. [2013] data and methods disclosed therein). Given that apart from forests, the species also occurs in shrubby vegetation, it may be tolerant of some habitat degradation and thus population declines are unlikely to be fast. Tentatively, population declines are placed in the band 1-19% over ten years, but an accurate quantification of the population trend is urgently required.
The species is threatened by habitat loss due to deforestation.
Conservation Actions Proposed
Quantify the population size and population trend. Monitor the population trend. Monitor the rate of habitat loss.
Text account compilers
Hermes, C.
Contributors
Butchart, S., Ekstrom, J. & Taylor, J.
Recommended citation
BirdLife International (2024) Species factsheet: Araguaia Spinetail Synallaxis simoni. Downloaded from
https://datazone.birdlife.org/species/factsheet/araguaia-spinetail-synallaxis-simoni 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.