Tarn Lecanora
EN

Tarn Lecanora

Protoparmeliopsis achariana

Unknown

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Protoparmeliopsis_achariana

Overview

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

Tarn Lecanora faces severe threats from atmospheric pollution, particularly nitrogen deposition and acid rain, which alter the chemical composition of its specialized rock substrates. Climate change poses additional risks through altered precipitation patterns and temperature fluctuations that affect the delicate moisture balance required for this lichen's survival. Recreational activities around mountain tarns and lakes cause direct physical damage through trampling and rock disturbance.

Threat summary

Habitat

This specialized lichen grows exclusively on siliceous rocks around mountain tarns and alpine lakes, typically at elevations above 1,500 meters. It requires specific moisture conditions and clean air quality, making it highly sensitive to environmental changes in these pristine montane ecosystems.

TERRESTRIAL· major

Other threatened species in Lecanoraceae

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veldjesschotelkorst

Lecanora soralifera

Unknown
EN

lad-lecidella

Lecidella pulveracea

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parasitsvartlavCR

parasitsvartlav

Carbonea supersparsa

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lodkantlav

Lecanora vacillans

Unknown

Frequently asked questions

Why is Tarn Lecanora classified as Endangered?
Tarn Lecanora is classified as Endangered — facing a very high risk of extinction in the wild — because population numbers are declining steeply and key habitats are under sustained pressure. Tarn Lecanora faces severe threats from atmospheric pollution, particularly nitrogen deposition and acid rain, which alter the chemical composition of its specialized rock substrates. Climate change poses additional risks through altered precipitation patterns and temperature fluctuations that affect the delicate moisture balance required for this lichen's survival. Recreational activities around mountain tarns and lakes cause direct physical damage through trampling and rock disturbance.
Where does Tarn Lecanora live?
Tarn Lecanora 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 Tarn Lecanora?
The main threats to Tarn Lecanora 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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