Pixie Foam Lichen
CR

Pixie Foam Lichen

Stereocaulon pileatum

Unknown

Photo: Photo: (c) Tom Walker, niektoré práva vyhradené (CC BY-NC), uploaded by Tom Walker

Overview

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

Pixie Foam Lichen faces severe threats from habitat degradation due to air pollution, particularly nitrogen deposition and sulfur compounds that alter the chemical composition of its substrate. Climate change poses additional risks through altered precipitation patterns and temperature fluctuations that affect the delicate moisture balance required for lichen survival.

Threat summary

Habitat

Occupies exposed rocky surfaces, particularly on acidic substrates including granite outcrops, stone walls, and occasionally on soil in open heathlands and moorlands. Typically found in areas with clean air and specific moisture regimes at various elevations.

TERRESTRIAL· major

Other threatened species in Stereocaulaceae

Stereocaulon coniophyllumCR

Stereocaulon coniophyllum

Unknown
Easter LichenCR

Easter Lichen

Stereocaulon paschale

Unknown
EN

Scaly Breck-lichen

Squamarina lentigera

Unknown
Squamarina pachylepideaEN

Squamarina pachylepidea

Unknown

Frequently asked questions

Why is Pixie Foam Lichen classified as Critically Endangered?
Pixie Foam Lichen 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. Pixie Foam Lichen faces severe threats from habitat degradation due to air pollution, particularly nitrogen deposition and sulfur compounds that alter the chemical composition of its substrate. Climate change poses additional risks through altered precipitation patterns and temperature fluctuations that affect the delicate moisture balance required for lichen survival.
Where does Pixie Foam Lichen live?
Pixie Foam 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 Pixie Foam Lichen?
The main threats to Pixie Foam 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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