EN

Newcombia canaliculata

Unknown

Overview

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

Newcombia canaliculata faces severe habitat degradation from invasive plant species that alter the native forest understory composition essential for this endemic Hawaiian tree snail. Introduced predators, particularly the rosy wolf snail (Euglandina rosea), pose a direct predation threat to remaining populations. Climate change-induced shifts in rainfall patterns and temperature regimes further stress the species by altering the moisture-dependent microhabitats these snails require for survival.

Threat summary

Habitat

This endemic Hawaiian tree snail inhabits native mesic and wet forests on Oahu, typically found on native vegetation in areas with consistent moisture and moderate temperatures. The species requires intact forest canopy and native plant communities that maintain the specific microclimate conditions necessary for its survival.

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Frequently asked questions

Why is Newcombia canaliculata classified as Endangered?
Newcombia canaliculata is classified as Endangered — facing a very high risk of extinction in the wild — because population numbers are declining steeply and key habitats are under sustained pressure. Newcombia canaliculata faces severe habitat degradation from invasive plant species that alter the native forest understory composition essential for this endemic Hawaiian tree snail. Introduced predators, particularly the rosy wolf snail (Euglandina rosea), pose a direct predation threat to remaining populations. Climate change-induced shifts in rainfall patterns and temperature regimes further stress the species by altering the moisture-dependent microhabitats these snails require for survival.
Where does Newcombia canaliculata live?
Newcombia canaliculata occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Newcombia canaliculata?
The main threats to Newcombia canaliculata are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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