LC
Guianan Antwarbler Hypocnemis cantator



Taxonomy

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.
SACC. 2005 and updates. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.htm#.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2019 Least Concern
2016 Near Threatened A3c
2012 Near Threatened A3c
2009 Least Concern
Species attributes

Migratory status not a migrant Forest dependency Medium
Land mass type Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 1,250,000 good
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals unknown not applicable not applicable 0
Population trend Stable suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Largest subpopulations - - -
Generation length (yrs) 4.8 - - -

Population justification: The global population size has not been quantified, but the species is described as fairly common to common, particularly in Guyana and French Guiana (del Hoyo et al. 2003).

Trend justification: The population of Guianan Antwarbler was suspected to be in decline by 20-25% over the next three generations based on a model of Amazonian deforestation (Soares-Filho et al. 2006, Bird et al. 2011). However, this analysis has since been repeated using more recent data on forest loss within the range (Tracewski et al. 2016). Tracewski et al. (2016) measured the forest loss within the species’s range between 2000 and 2012 as c. 7,645 km2. This roughly equates to a rate of forest loss of 1% over three generations (14.4 years). As the species seems to tolerate habitat degradation, it may not be as severely affected by deforestation as previously feared. Therefore, the population is tentatively assessed as stable.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Brazil N Extant Yes
French Guiana N Extant Yes
Guyana N Extant Yes
Suriname N Extant Yes
Venezuela N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
French Guiana Rorota
French Guiana Mont Matoury
French Guiana Atachi Bakka
French Guiana Montagne Kaw
French Guiana Parc Amazonien de Guyane et Saül
French Guiana Nouragues
French Guiana Lucifer
French Guiana Trinité

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Subtropical/Tropical Heavily Degraded Former Forest suitable resident
Forest Subtropical/Tropical Moist Lowland major resident
Forest Subtropical/Tropical Swamp major resident
Altitude 0 - 1300 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops - Agro-industry farming Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines Low Impact: 4
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Livestock farming & ranching - Agro-industry grazing, ranching or farming Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines Low Impact: 4
Stresses
Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2020) Species factsheet: Hypocnemis cantator. Downloaded from http://www.birdlife.org on 31/05/2020. Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 31/05/2020.