VU

tundra liverwort

Arnellia fennica

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Overview

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

Arnellia fennica faces severe pressure from climate change as warming temperatures alter the delicate moisture and temperature regimes essential for its survival in arctic and subarctic environments. Habitat degradation from increased human activity in northern regions, including infrastructure development and tourism, fragments its already limited suitable habitat. The species' extremely restricted distribution makes it particularly vulnerable to local environmental changes and stochastic events.

Threat summary

Habitat

Arnellia fennica inhabits moist, shaded rock crevices and soil in arctic and subarctic tundra environments, typically found on calcareous substrates. The species requires specific microclimate conditions with consistent moisture levels and protection from direct sunlight, often occurring in areas with late-melting snow cover.

Frequently asked questions

Why is tundra liverwort classified as Vulnerable?
tundra liverwort is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. Arnellia fennica faces severe pressure from climate change as warming temperatures alter the delicate moisture and temperature regimes essential for its survival in arctic and subarctic environments. Habitat degradation from increased human activity in northern regions, including infrastructure development and tourism, fragments its already limited suitable habitat. The species' extremely restricted distribution makes it particularly vulnerable to local environmental changes and stochastic events.
Where does tundra liverwort live?
tundra liverwort 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 tundra liverwort?
The main threats to tundra liverwort 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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