|Red List Category & Criteria:
||Butchart, S. & Symes, A.
||Harding, M., Ekstrom, J., Butchart, S.
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
|Previously published Red List assessments:|
- 2009 – Least Concern (LC) –
- 2008 – Least Concern (LC) –
- 2004 – Least Concern (LC) –
- 2000 – Lower Risk/least concern (LR/lc) –
- 1994 – Lower Risk/least concern (LR/lc) –
- 1988 – Lower Risk/least concern (LR/lc) –
|Range Description:||This taxon exists in two forms: the nominate undulata occurs in two disjunct areas, one in Colombia, and the other from Venezuela through Guyana, Suriname and French Guiana to extreme north-east Brazil; the race gigantea is found in eastern Bolivia, eastern Paraguay and south-east Brazil, and probably also in Uruguay and north-east Argentina (del Hoyo et al. 1996). It occurs in Reserva Natural del Bosque Mbaracayú and Golondrina Private Nature Reserve, Paraguay (Lowen et al. 1996), and all recent records for Venezuela have been from Canaima National Park and World Heritage Site (C. Sharpe in litt. 2003).|
Bolivia, Plurinational States of; Brazil; Colombia; French Guiana; Guyana; Paraguay; Suriname; Venezuela, Bolivarian Republic of
|♦ Continuing decline in area of occupancy (AOO):||Unknown|
|♦ Extreme fluctuations in area of occupancy (AOO):||No||♦ Estimated extent of occurrence (EOO) - km2:||2570000|
|♦ Continuing decline in extent of occurrence (EOO):||Unknown||♦ Extreme fluctuations in extent of occurrence (EOO):||No|
|♦ Continuing decline in number of locations:||Unknown|
|♦ Extreme fluctuations in the number of locations:||No|
|♦ Upper elevation limit (metres):||2200|
|Range Map:||Click here to open the map viewer and explore range.|