CR

Trochochlamys ogasawarana

Unknown

Overview

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

Trochochlamys ogasawarana faces severe threats from invasive species that have fundamentally altered the Ogasawara Islands' ecosystem. Introduced flatworms prey directly on native land snails, while invasive plants have transformed the forest understory habitat. The species' extremely limited range on just a few islands makes it particularly vulnerable to local extinctions from these ongoing biological invasions.

Threat summary

Habitat

This endemic land snail inhabits the humid forest floors and leaf litter of the Ogasawara Islands' native subtropical forests. It requires the specific microclimate conditions found under the canopy of indigenous trees, particularly in areas with deep organic soil layers.

TERRESTRIAL· major

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Frequently asked questions

Why is Trochochlamys ogasawarana classified as Critically Endangered?
Trochochlamys ogasawarana 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. Trochochlamys ogasawarana faces severe threats from invasive species that have fundamentally altered the Ogasawara Islands' ecosystem. Introduced flatworms prey directly on native land snails, while invasive plants have transformed the forest understory habitat. The species' extremely limited range on just a few islands makes it particularly vulnerable to local extinctions from these ongoing biological invasions.
Where does Trochochlamys ogasawarana live?
Trochochlamys ogasawarana occurs in Japan. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Trochochlamys ogasawarana?
The main threats to Trochochlamys ogasawarana 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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