CR

Scutula effusa

Local name: mörk lundlav

Unknown

Overview

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

Mörk lundlav faces severe threats from air pollution, particularly nitrogen deposition and sulfur compounds, which alter the chemical composition of its substrate and disrupt its growth. Habitat loss through deforestation and urbanization has eliminated many suitable old-growth forest sites, while climate change is shifting temperature and humidity patterns beyond the species' tolerance range.

Threat summary

Habitat

Mörk lundlav grows on the bark of deciduous trees, particularly in old-growth and mature forests with high humidity and stable microclimatic conditions. It typically occurs in shaded woodland environments with minimal air pollution and established forest ecosystems.

TERRESTRIAL· major

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luddig stiftdynlav

Micarea hedlundii

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Byssoloma marginatum

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Calidris ferrugineaVU

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VU

Codonocarpus pyramidalis

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EN

Acacia aprica

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CR

Dipturus mennii

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Frequently asked questions

Why is mörk lundlav classified as Critically Endangered?
mörk lundlav 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. Mörk lundlav faces severe threats from air pollution, particularly nitrogen deposition and sulfur compounds, which alter the chemical composition of its substrate and disrupt its growth. Habitat loss through deforestation and urbanization has eliminated many suitable old-growth forest sites, while climate change is shifting temperature and humidity patterns beyond the species' tolerance range.
Where does mörk lundlav live?
mörk lundlav occurs in Australia, Austria, Canada, Colombia, Czechia, and Denmark (plus 16 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 mörk lundlav?
The main threats to mörk lundlav 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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