Red List Category
for more information about the Red List categories and criteria
Justification of Red List category
This species is classified as Endangered because it only survives on two or three tiny islands (both reintroductions) and the tiny populations on two of these may become extirpated in the near future (if they have not already done so), as black rats have recently become established. Its overall population trend is difficult to assess, but it is likely to be undergoing a long-term continuing decline. It would be uplisted to Critically Endangered if black rats reached Ua Huka, the most important islands.
1000-2499 mature individuals
Distribution size (breeding/resident):
Land-mass type - oceanic island - Oceanic islands are islands or island groups that are <200,000 sq km in size and separated from other land masses by >200 m sea depth. Generally Oceanic islands are islands or island groups that are <200,000 sq km in size and separated from other land masses by >200 m sea depth. Generally they have never been connected to a continental area by a land-ridge, and are volcanic in origin.
Realm - Oceanic - realm
IUCN Ecosystem -- Terrestrial biome