NT
Bahia Spinetail Synallaxis cinerea



Taxonomy

Taxonomic note
Synallaxis cinerea (del Hoyo and Collar 2016) was previously listed as S. whitneyi.

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 Near Threatened C2a(i)
2016 Near Threatened C2a(i)
2012 Vulnerable A2c+3c+4c;B1ab(i,ii,iii,iv,v);C2a(i)
2008 Vulnerable A2c; A3c; A4c; B1a+b(i,ii,iii,iv,v); C2a(i)
2004 Vulnerable
2000 Endangered
1994 Not Recognised
1988 Not Recognised
Species attributes

Migratory status not a migrant Forest dependency Medium
Land mass type Land-mass type - continent
Average mass 16 g
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 89,800 medium
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 4400 - 13200 poor suspected 2018
Population trend Decreasing poor inferred -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) 1-9 - - -
Decline (10 years/3 generation past and future) 1-9 - - -
Number of subpopulations 2-10 - - -
Largest subpopulations 1-89 - - -
Generation length (yrs) 3.8 - - -

Population justification: Based on the recorded population densities of other Synallaxis species and the area of the species's mapped range, the population size is preliminarily estimated to number between 4,400 - 13,200 mature individuals. Given that the species has been described as 'fairly common to common' (Remsen and Sharpe 2018), the true population size is likely to fall towards the higher end of this range.

Trend justification:

Data on forest cover and loss within the species’s mapped range indicated forest loss between 2007 and 2017 at a rate equivalent to 6% over three generations (Global Forest Watch 2018). Although this species tolerates secondary forest, the population is inferred to be undergoing an ongoing continuing decline as a result of this habitat loss, with the rate of decline suspected to be within the range of 1-9% across three generations. Assuming that forest loss continues at a similar rate, the population may be assumed to continue to decline at this rate in future.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Brazil N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Brazil Serra de Bonito
Brazil Parque Nacional da Chapada Diamantina
Brazil Reserva Biológica da Mata Escura
Brazil Boa Nova / Serra da Ouricana
Brazil Vitória da Conquista
Brazil Serras das Lontras e do Javi
Brazil Serra Bonita
Brazil Bandeira / Macarani

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Lowland suitable resident
Forest Subtropical/Tropical Moist Montane major resident
Altitude 500 - 1200 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops - Scale Unknown/Unrecorded Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Livestock farming & ranching - Agro-industry grazing, ranching or farming Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation
Climate change & severe weather Habitat shifting & alteration Timing Scope Severity Impact
Future Whole (>90%) Unknown Unknown
Stresses
Indirect ecosystem effects, Ecosystem degradation
Natural system modifications Fire & fire suppression - Increase in fire frequency/intensity Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation

Recommended citation
BirdLife International (2020) Species factsheet: Synallaxis cinerea. Downloaded from http://www.birdlife.org on 10/07/2020. Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 10/07/2020.