EN

Perdicella helena

Unknown

Overview

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

Perdicella helena faces severe threats from habitat destruction due to urban development and agricultural expansion across its limited Hawaiian range. Invasive plant species alter the native forest understory composition, reducing suitable microhabitats for this endemic land snail. Climate change poses additional risks through altered precipitation patterns that affect the moist conditions essential for the species' survival.

Threat summary

Habitat

This endemic Hawaiian land snail inhabits native mesic and wet forests, typically found in leaf litter and on vegetation in areas with consistent moisture levels. The species requires specific microhabitat conditions including stable humidity and native plant communities that provide appropriate shelter and food sources.

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Frequently asked questions

Why is Perdicella helena classified as Endangered?
Perdicella helena 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. Perdicella helena faces severe threats from habitat destruction due to urban development and agricultural expansion across its limited Hawaiian range. Invasive plant species alter the native forest understory composition, reducing suitable microhabitats for this endemic land snail. Climate change poses additional risks through altered precipitation patterns that affect the moist conditions essential for the species' survival.
Where does Perdicella helena live?
Perdicella helena 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 Perdicella helena?
The main threats to Perdicella helena 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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