EN

trollskinn

Thujacorticium zurhausenii

Unknown

Overview

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

Trollskinn faces severe threats from deforestation and habitat fragmentation across its limited range in old-growth coniferous forests. The species' dependence on specific host trees, particularly ancient Thuja species, makes it extremely vulnerable to logging operations and forest management practices that remove mature trees. Climate change poses an additional threat by altering the moisture and temperature conditions essential for this corticioid fungus to survive and reproduce.

Threat summary

Habitat

Trollskinn is found exclusively on the bark of old-growth coniferous trees, particularly Thuja species, in temperate and boreal forests. The species requires specific microclimate conditions with high humidity and stable temperatures found in mature forest ecosystems.

TERRESTRIAL· major

Other threatened species in Cyphellaceae

Granulobasidium vellereumVU

Granulobasidium vellereum

Unknown

Frequently asked questions

Why is trollskinn classified as Endangered?
trollskinn 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. Trollskinn faces severe threats from deforestation and habitat fragmentation across its limited range in old-growth coniferous forests. The species' dependence on specific host trees, particularly ancient Thuja species, makes it extremely vulnerable to logging operations and forest management practices that remove mature trees. Climate change poses an additional threat by altering the moisture and temperature conditions essential for this corticioid fungus to survive and reproduce.
Where does trollskinn live?
trollskinn 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 trollskinn?
The main threats to trollskinn 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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