stjernelav
CR

stjernelav

Gyalidea asteriscus

Unknown

Photo: (c) cjlewis, some rights reserved (CC BY-NC), uploaded by cjlewis

Overview

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

Gyalidea asteriscus faces severe threats from habitat degradation and loss of suitable substrates in its specialized environments. Air pollution and climate change are significantly impacting the delicate balance required for this lichen species to survive, while its extremely limited distribution makes it particularly vulnerable to local extinctions.

Threat summary

Habitat

This lichen species occurs on specific rock surfaces and mineral substrates in coastal and montane environments, typically in areas with particular moisture and light conditions. It requires very specific microhabitat conditions that are sensitive to environmental changes.

TERRESTRIAL· major

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Calidris ferrugineaVU

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Achala Escuerzo-Frog

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Trichomycterus ramosus

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Frequently asked questions

Why is stjernelav classified as Critically Endangered?
stjernelav 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. Gyalidea asteriscus faces severe threats from habitat degradation and loss of suitable substrates in its specialized environments. Air pollution and climate change are significantly impacting the delicate balance required for this lichen species to survive, while its extremely limited distribution makes it particularly vulnerable to local extinctions.
Where does stjernelav live?
stjernelav occurs in Argentina, Austria, Canada, Czechia, France, and Germany (plus 8 other countries). Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to stjernelav?
The main threats to stjernelav 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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