Data Zone
Justification of Red List category
This recently described species is known from a small range, in which habitat is lost through extensive clearance for cattle ranching. The species is therefore listed as Near Threatened.
Population justification
The population size of this species has not been quantified, but given the paucity of records and small range it is unlikely to be very large. However, further surveys, particularly in potentially suitable habitat in Bolivia and Peru, may help conclude how abundant this species may be.
Trend justification
The population trend has not been investigated. Within its known range, deforestation is ongoing and extensive (Global Forest Watch 2022). Over the last ten years, 15% of tree cover has been lost within the range; since 2017 this has been increasing to a rate equivalent to 19% over ten years (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). The species is however not dependent on mature forest, but occurs in a variety of secondary, edge and successional habitats (Zimmer et al. 2013), and therefore population declines may not be as steep as the rate of tree cover loss suggests. Nevertheless, the population is likely affected by the extensive and large-scale clearance of shrubby and herbaceous habitat, which is ongoing throughout large parts of the range. Thus, the population is suspected to be in decline, though the exact rate is not known.
Acre Tody-tyrant occurs at the southwestern edge of Amazonia, in Acre in Brazil, Madre de Dios in Peru and is likely to also occur in adjacent Pando, Bolivia.
The species inhabits secondary growth vegetation of various successional stages and forest edge habitats, often with dead or collapsed Guadua bamboo (Zimmer et al. 2013, del Hoyo et al. 2020). It appears to avoid both 'várzea' and 'terra firme' mature forests, but is instead mostly found in areas of low forest (up to 12 m) with little or no canopy layer (Zimmer et al. 2013, del Hoyo et al. 2020).
The species' tolerance of successional and shrubby habitats suggests that it may be able to cope with habitat degradation to some degree (Zimmer et al. 2013). There is however extensive clear-cutting ongoing in large parts of the range, particularly for the creation of cattle pastures (Zimmer et al. 2013, Global Forest Watch 2022). Over the last five years, the rate of deforestation has been increasing drastically (Global Forest Watch 2022), and large-scale habitat clearance is likely putting the species at risk due to near-total loss of habitat in areas near settlements.
Conservation Actions Underway
The species is listed as Near Threatened at the national level in Brazil (ICMBio 2018).
Conservation Actions Proposed
Conduct surveys in potential habitat to determine its true distribution and abundance. Confirm its presence in Bolivia. Research the species' ecology. Investigate the species' tolerance of forest loss and quantify the impact of clearcutting on the population size. Monitor the population trend. Monitor rates of habitat loss. Protect areas of suitable habitat.
Text account compilers
Hermes, C.
Contributors
Westrip, J.R.S.
Recommended citation
BirdLife International (2024) Species factsheet: Acre Tody-tyrant Hemitriccus cohnhafti. Downloaded from
https://datazone.birdlife.org/species/factsheet/acre-tody-tyrant-hemitriccus-cohnhafti on 26/12/2024.
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 26/12/2024.