IUCN threat status:

Endangered (EN)

Distribution

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Range Description

Paroreomyza montana is endemic to Maui in the Hawaiian Islands, U.S.A. The nominate subspecies formerly occurred on Lana'i, but it became extinct around 1937. On Maui, it is now found only in two locations in the east, including Waikamoi Preserve to Kipahulu Valley (abundant), and Polipoli State Park and nearby areas south-west of Haleakala peak (Baker and Baker 2000) (no longer common, but exact status unsure [H. Mounce in litt. 2007]). Population densities decline below 1,600 m elevation: in 1980, surveys recorded none below 900 m (Scott et al. 1986) and, in 1997, there was an almost total absence below 1,480 m, with only 40 km2 of occupied good quality habitat above 1,525 m (Baker and Baker 2000). In 1980, the early 1990s and 1997, the total population was estimated at c.35,000 birds (Scott et al. 1986, Jacobi and Atkinson 1995, Baker and Baker 2000) (but <8,550 breeding pairs), suggesting overall stability, although the range has contracted in this time (Baker and Baker 2000). In 2002, it was reported that koa forest in South Haleakala was being degraded by feral goats, prompting suspicions of a population decline (S. Fretz, R. Camp, E. Vanderwerf, M. Gorresen and B. Woodworth in litt. 2003), and in 2007, a fire in PoliPoli State Park destroyed an area of the species's habitat and probably a proportion of the population (H. Mounce in litt. 2007). Surveys after the fire found some surviving birds, but the lack of baseline surveys before the fire has prevented an analysis of the impact on the population (H. Mounce in litt. 2007).

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Source: IUCN

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