Oahu Alauahio
CR

Oahu Alauahio

Paroreomyza maculata

Unknown

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/O%CA%BBahu_%CA%BBalauahio

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

Paroreomyza maculata faces severe population decline primarily due to habitat destruction from invasive plant species that have transformed native Hawaiian forests. Introduced diseases, particularly avian malaria and pox transmitted by non-native mosquitoes, have devastated populations at lower elevations. Competition from introduced bird species for limited food resources and nesting sites has further reduced breeding success in remaining habitat fragments.

Threat summary

Habitat

This Hawaiian honeycreeper inhabits native wet and mesic forests dominated by ohia and koa trees, typically at elevations between 1,200-2,100 meters. The species requires dense canopy cover with abundant native arthropods and nectar sources from endemic plants.

Forest· major

Conservation measures underway

Invasive/problematic species controlSpecies recovery

Other threatened species in FRINGILLIDAE

CR

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Pseudonestor xanthophrys

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Maui AlauahioEN

Maui Alauahio

Paroreomyza montana

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Threatened in United States

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Lepiota echinella

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Polyodon spathula

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Lyophyllum deliberatum

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Frequently asked questions

Why is Oahu Alauahio classified as Critically Endangered?
Oahu Alauahio is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Paroreomyza maculata faces severe population decline primarily due to habitat destruction from invasive plant species that have transformed native Hawaiian forests. Introduced diseases, particularly avian malaria and pox transmitted by non-native mosquitoes, have devastated populations at lower elevations. Competition from introduced bird species for limited food resources and nesting sites has further reduced breeding success in remaining habitat fragments.
Where does Oahu Alauahio live?
Oahu Alauahio occurs in United States. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Oahu Alauahio?
The main threats to Oahu Alauahio are 1.1, 2.1, 2.3, and 8.1. The full IUCN-classified threat record for this species is detailed on the species page.

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