VU
Black-backed Tanager Tangara peruviana



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
- - A2c+3c+4c; C2a(i)

Red List history
Year Category Criteria
2018 Vulnerable A2c+3c+4c; C2a(i)
2016 Vulnerable A2c+3c+4c; C2a(i)
2012 Vulnerable A2c+3c+4c;C2a(i)
2008 Vulnerable A2c; A3c; A4c; C2a(i)
2004 Vulnerable
2000 Vulnerable
1996 Endangered
1994 Endangered
1988 Threatened
Species attributes

Migratory status full migrant Forest dependency Medium
Land mass type Land-mass type - continent
Average mass 22.200000762939453 g
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 316,000 medium
Extent of Occurrence non-breeding (km2) 377,000 medium
Number of locations 11-100 -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 2500-9999 poor estimated 2000
Population trend Decreasing poor 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) 30-49 - - -
Decline (10 years/3 generation past and future) 30-49 - - -
Number of subpopulations 2-100 - - -
Largest subpopulations - - -
Generation length (yrs) 4.9 - - -

Population justification: The population is estimated to number 2,500-9,999 mature individuals based on an assessment of known records, descriptions of abundance and range size. This is consistent with recorded population density estimates for congeners or close relatives with a similar body size, and the fact that only a proportion of the estimated Extent of Occurrence is likely to be occupied. This estimate is equivalent to 3,750-14,999 individuals in total, rounded here to 3,500-15,000 individuals.

Trend justification: A rapid population decline is suspected owing to rates of habitat loss and fragmentation within its range.


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 Área de Proteção Ambiental de Guaratuba
Brazil Baía da Babitonga
Brazil Bertioga
Brazil Estação Ecológica de Juréia-Itatins
Brazil Guaraqueçaba / Jacupiranga / Cananéia
Brazil Ilha Grande
Brazil Ilhabela State Park (Parque Estadual de Ilhabela IBA)
Brazil Ilhas Comprida e Cananéia
Brazil Itanhaém / Mongaguá
Brazil Maciço Florestal de Paranapiacaba
Brazil Maciços da Tijuca e Pedra Branca
Brazil Parque Estadual da Serra do Mar (entre Caraguatatuba e Picinguaba)
Brazil Parque Estadual do Desengano e Entorno
Brazil Reserva Biológica de Poço das Antas
Brazil Restinga de Maçambaba e Ilha de Cabo Frio
Brazil Serra da Bocaina / Paraty / Angra dos Reis

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Dry major non-breeding
Forest Subtropical/Tropical Dry major breeding
Shrubland Subtropical/Tropical Dry major non-breeding
Shrubland Subtropical/Tropical Dry major breeding
Shrubland Subtropical/Tropical Moist major non-breeding
Shrubland Subtropical/Tropical Moist major breeding
Altitude 0 - 600 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Biological resource use Hunting & trapping terrestrial animals - Intentional use (species is the target) Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines
Stresses
Species mortality
Residential & commercial development Housing & urban areas Timing Scope Severity Impact
Ongoing Majority (50-90%) Rapid Declines
Stresses
Ecosystem degradation, Ecosystem conversion
Residential & commercial development Tourism & recreation areas Timing Scope Severity Impact
Ongoing Majority (50-90%) Rapid Declines
Stresses
Ecosystem degradation, Ecosystem conversion

Utilisation
Purpose Primary form used Life stage used Source Scale Level Timing
Pets/display animals, horticulture - - Non-trivial Recent
Pets/display animals, horticulture - - Non-trivial Recent

Recommended citation
BirdLife International (2019) Species factsheet: Tangara peruviana. Downloaded from http://www.birdlife.org on 25/05/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 25/05/2019.