Justification of Red List Category
This species is likely to have a moderately small population within its small range. It is likely to be declining owing to ongoing habitat degradation, but the range is not yet severely fragmented or restricted to few locations. For these reasons, the species is classified as Near Threatened.
The population size of this species has not been quantified, but it is described as fairly common to locally abundant.
There are no data on population trends; however, the species is thought to be in slow decline, owing to on-going habitat degradation.
Astrapia mayeri has a small range in the central mountains of Papua New Guinea, from the Strickland River to Mt Hagen and Mt Giluwe, c.130 km west. Its western limits require further surveying. It is generally fairly common, even in degraded forest. At a new site, Kumul Lodge in the west of its range, it is reported to be abundant (Salvadori 1998).
It occurs in montane forest between 2,400 and 3,400 m, sometimes down to 1,800 m and also in degraded forest.
It is locally threatened by hunting for tail plumes and by large-scale logging and forest degradation but it is safe in the inaccessible portions of its range (Coates 1990, P. Gregory in litt. 1994, Frith and Beehler 1998). Previous concerns of genetic swamping through hybridisation with Stephanie's Astapia A. stephaniae in the far east of its range are now discounted.
Conservation Actions Underway
CITES Appendix II.
Text account compilers
Derhé, M., Dutson, G., Mahood, S., O'Brien, A.
BirdLife International (2021) Species factsheet: Astrapia mayeri. Downloaded from http://www.birdlife.org on 16/10/2021. Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 16/10/2021.