Achatinella byronii
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Achatinella_byronii
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
Achatinella byronii faces severe population decline primarily due to habitat destruction from urban development and invasive plant species that alter native forest composition. Introduced predators, particularly the rosy wolf snail (Euglandina rosea) and rats, have devastated remaining populations through direct predation. Climate change compounds these pressures by shifting suitable habitat zones upslope, while the species' extremely limited dispersal ability prevents natural recolonization of degraded areas.
Habitat
This endemic Hawaiian tree snail inhabits native mesic and wet forests on Oahu, typically found on native trees and shrubs in areas with high humidity and moderate temperatures. The species requires intact native forest canopy and is particularly associated with ohia lehua (Metrosideros polymorpha) and koa (Acacia koa) trees.