VU

Oldgrowth Rag Lichen

Platismatia norvegica

Unknown

Overview

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

The Oldgrowth Rag Lichen faces severe decline due to widespread logging of old-growth forests, which destroys the specific microclimate conditions it requires. Air pollution, particularly nitrogen deposition and sulfur compounds, significantly impacts this pollution-sensitive species. Climate change poses an additional threat by altering temperature and humidity patterns in the cool, moist environments where this lichen thrives.

Threat summary

Habitat

This epiphytic lichen grows exclusively on the bark of old-growth coniferous trees, particularly in cool, humid coastal and montane forests. It requires stable microclimatic conditions found only in mature forest ecosystems with minimal disturbance.

TERRESTRIAL· major

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Frequently asked questions

Why is Oldgrowth Rag Lichen classified as Vulnerable?
Oldgrowth Rag Lichen 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. The Oldgrowth Rag Lichen faces severe decline due to widespread logging of old-growth forests, which destroys the specific microclimate conditions it requires. Air pollution, particularly nitrogen deposition and sulfur compounds, significantly impacts this pollution-sensitive species. Climate change poses an additional threat by altering temperature and humidity patterns in the cool, moist environments where this lichen thrives.
Where does Oldgrowth Rag Lichen live?
Oldgrowth Rag Lichen 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 Oldgrowth Rag Lichen?
The main threats to Oldgrowth Rag Lichen 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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