EN

Newcombia pfeifferi

Unknown

Overview

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

Newcombia pfeifferi 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' already fragmented montane forest habitat.

Threat summary

Habitat

This endemic Hawaiian tree snail inhabits native montane forests on Oahu, typically found on native trees and shrubs in mesic to wet forest zones at elevations between 300-800 meters. The species requires intact native forest canopy and understory vegetation that maintains appropriate moisture levels and provides suitable surfaces for feeding and reproduction.

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Frequently asked questions

Why is Newcombia pfeifferi classified as Endangered?
Newcombia pfeifferi 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 pfeifferi 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' already fragmented montane forest habitat.
Where does Newcombia pfeifferi live?
Newcombia pfeifferi 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 pfeifferi?
The main threats to Newcombia pfeifferi 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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