|Red List Category & Criteria:
||Butchart, S. & Symes, A.
||Argel-de-Oliveira, M., Bencke, G., De Luca, A., Develey, P., Martuscelli, P., Oniki, Y. & Willis, E.
||Clay, R., Pople, R., Sharpe, C J, Symes, A., Williams, R.
This species has a complex distribution and undertakes some seasonal movements. Clarification of these will provide an improved understanding of its actual conservation status, but currently populations appear small and fragmented, and are probably declining rapidly in response to extensive habitat loss (Collar et al. 1992). It is consequently listed as Vulnerable.
|Previously published Red List assessments:|
- 2008 – Vulnerable (VU)
- 2004 – Vulnerable (VU)
- 2000 – Vulnerable (VU)
- 1996 – Endangered (EN)
- 1994 – Endangered (EN)
- 1988 – Threatened (T)
|Range Description:||Tangara peruviana occurs in south-east Brazil, in Espírito Santo (Argel-de-Oliveira et al. 1993, M. M. Argel-de-Oliveira in litt. 2000), Rio de Janeiro (as an austral winter visitor in April-September), São Paulo, Paraná, Santa Catarina (no unequivocal records since the 1930s) and Rio Grande do Sul (G. A. Bencke in litt. 2000, Bencke et al. 2003, Rosa and Agne 2010). It is generally considered not rare within suitable habitat, with periodic local fluctuations in numbers owing to seasonal movements, at least in Rio de Janeiro and São Paulo. Records from Pelotas in Rio Grande do Sul were thought to refer to the closely related T. preciosa, but well documented records from the state confirm T. peruviana (G. A. Bencke in litt. 2000, Bencke et al. 2003, Rosa and Agne 2010). However, records from Buenos Aires and Misiones, Argentina, can be more certainly attributed to T. preciosa. |
|♦ Continuing decline in area of occupancy (AOO):||Yes|
|♦ Extreme fluctuations in area of occupancy (AOO):||No||♦ Estimated extent of occurrence (EOO) - km2:||9400|
|♦ Continuing decline in extent of occurrence (EOO):||Yes||♦ Extreme fluctuations in extent of occurrence (EOO):||No|
|♦ Number of Locations:||11-100||♦ Continuing decline in number of locations:||Yes|
|♦ Extreme fluctuations in the number of locations:||No|
|♦ Upper elevation limit (metres):||600|
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||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.
|Current Population Trend:||Decreasing|
|♦ Number of mature individuals:||2500-9999||♦ Continuing decline of mature individuals:||Yes|
|♦ Extreme fluctuations:||No||♦ Population severely fragmented:||No|
|♦ No. of subpopulations:||2-100||♦ Continuing decline in subpopulations:||Yes|
|♦ Extreme fluctuations in subpopulations:||No||♦ All individuals in one subpopulation:||No|