CR

Radula visianica

StableCREUCREU

Overview

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

Radula visianica faces severe threats from habitat destruction due to urban development and infrastructure expansion in its limited range. The species' extremely restricted distribution makes it particularly vulnerable to localized disturbances, while climate change poses additional risks through altered precipitation patterns that could affect the humid microhabitats essential for this liverwort's survival.

Threat summary

Habitat

This critically endangered liverwort inhabits humid, shaded rock surfaces and soil banks in montane regions. It requires specific microhabitat conditions with consistent moisture levels and protection from direct sunlight, typically found in sheltered crevices and moss-covered substrates.

Conservation measures underway

Species recoveryEx-situ conservation

Other threatened species in RADULACEAE

EN

Radula jonesii

Declining

Threatened in Austria

VU

Lepiota echinella

Unknown
EN

Lyophyllum deliberatum

Unknown
VU

Large Tree-chernes

Dendrochernes cyrneus

Unknown
EN

Pipizella nigriana

Unknown

Frequently asked questions

Why is Radula visianica classified as Critically Endangered?
Radula visianica 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. Radula visianica faces severe threats from habitat destruction due to urban development and infrastructure expansion in its limited range. The species' extremely restricted distribution makes it particularly vulnerable to localized disturbances, while climate change poses additional risks through altered precipitation patterns that could affect the humid microhabitats essential for this liverwort's survival.
Where does Radula visianica live?
Radula visianica occurs in Austria, and Italy. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Radula visianica?
The main threats to Radula visianica 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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