DistributionRead full entry
Range DescriptionThis species is endemic to the tiny island of Rapa in the Tubuai Islands, French Polynesia, where its population was estimated at 274 individuals (175-368) in 1989-1990 (Thibault and Varney 1991). Although it is probable that the area of available habitat has diminished during the 20th century and this may have caused a decrease in population, in 1991 there was thought to have been no serious decline since 1974 (Thibault and Varney 1991). The situation now is thought to be much the same (J. Millet in litt. 2007), but the introduction of the Chinese guava Psidium cattleianum may have provided an additional food source and be causing the population to increase, although surveys are needed to confirm this (P. Raust in litt. 2007).