CR

Micrarionta feralis

Unknown

Overview

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

Micrarionta feralis faces severe population decline due to habitat destruction from urban development and agricultural expansion across its limited range in southern California. The species is particularly vulnerable to drought conditions that desiccate its preferred microhabitats, while invasive plant species alter the native vegetation communities it depends upon. Fire suppression practices have also modified the natural fire regimes that historically maintained suitable habitat conditions.

Threat summary

Habitat

This terrestrial gastropod inhabits coastal sage scrub and chaparral communities in southern California, typically found under rocks, logs, and leaf litter in areas with adequate moisture retention. The species requires specific microhabitat conditions with native vegetation cover and appropriate soil chemistry.

TERRESTRIAL· major

Frequently asked questions

Why is Micrarionta feralis classified as Critically Endangered?
Micrarionta feralis 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. Micrarionta feralis faces severe population decline due to habitat destruction from urban development and agricultural expansion across its limited range in southern California. The species is particularly vulnerable to drought conditions that desiccate its preferred microhabitats, while invasive plant species alter the native vegetation communities it depends upon. Fire suppression practices have also modified the natural fire regimes that historically maintained suitable habitat conditions.
Where does Micrarionta feralis live?
Micrarionta feralis 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 Micrarionta feralis?
The main threats to Micrarionta feralis 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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