CR

Amastra micans

Unknown

Overview

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

Amastra micans faces severe threats from habitat destruction as native Hawaiian forests are cleared for development and agriculture. Invasive plant species alter the forest understory composition, reducing suitable microhabitats for this endemic land snail. Predation by introduced species, particularly the rosy wolf snail and various ant species, has decimated populations across its historical range.

Threat summary

Habitat

This endemic Hawaiian land snail inhabits native wet forests and mesic forests on volcanic slopes, typically found in leaf litter and on vegetation in areas with high humidity and consistent moisture. It requires intact native forest ecosystems with dense canopy cover that maintains the cool, moist microclimate essential for its survival.

TERRESTRIAL· major

Frequently asked questions

Why is Amastra micans classified as Critically Endangered?
Amastra micans 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. Amastra micans faces severe threats from habitat destruction as native Hawaiian forests are cleared for development and agriculture. Invasive plant species alter the forest understory composition, reducing suitable microhabitats for this endemic land snail. Predation by introduced species, particularly the rosy wolf snail and various ant species, has decimated populations across its historical range.
Where does Amastra micans live?
Amastra micans 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 Amastra micans?
The main threats to Amastra micans 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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