LC
Puerto Rican Mango Anthracothorax aurulentus



Justification

Justification of Red List Category
Although this species may have a small range, it is not believed to 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.

Population justification
The global population size has not been quantified, but this species is described as 'common' (Stotz et al. 1996, Raffaele et al. 1998) and 'generally common on coastal areas with scattered trees' (del Hoyo et al. 1999).

Trend justification
It is common on Puerto Rico, which holds the majority of the population, but has become increasingly rare on the Virgin Islands where it is probably extinct on St John and Anegada, and perhaps also on Vieques, apparently as a result of competition from Eulampis holosericeus (Raffaele et al. 1998, del Hoyo et al. 1999). The total population is therefore inferred to be undergoing a slow decline.

Acknowledgements

Text account compilers
Butchart, S., Ekstrom, J., Symes, A. & Taylor, J.


Recommended citation
BirdLife International (2020) Species factsheet: Anthracothorax aurulentus. Downloaded from http://www.birdlife.org on 21/09/2020. Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 21/09/2020.