VU

Cortinarius betulinus

Local name: slank slimslørsopp

Unknown

Overview

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

Cortinarius betulinus faces significant pressure from the ongoing decline of old-growth birch forests across Scandinavia, where intensive forestry practices have fragmented its specialized habitat. The species' strict mycorrhizal association with mature birch trees makes it particularly vulnerable to forest management that favors younger stands and monoculture plantations. Climate change poses an additional threat by altering the moisture and temperature regimes essential for fruiting body development in northern boreal ecosystems.

Threat summary

Habitat

This mycorrhizal fungus forms obligate partnerships with birch trees (Betula species) in mature boreal and sub-boreal forests of northern Europe. It typically occurs in old-growth birch stands with rich, moist soils and requires stable forest conditions with minimal disturbance for successful reproduction.

TERRESTRIAL· major

Other threatened species in Cortinariaceae

EN

Cortinarius sordescentipes

Unknown
Scaly WebcapVU

Scaly Webcap

Cortinarius pholideus

Unknown
Goatcheese WebcapVU

Goatcheese Webcap

Cortinarius camphoratus

Unknown
VU

Mealy Bigfoot Webcap

Cortinarius caerulescens

Unknown

Frequently asked questions

Why is slank slimslørsopp classified as Vulnerable?
slank slimslørsopp is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. Cortinarius betulinus faces significant pressure from the ongoing decline of old-growth birch forests across Scandinavia, where intensive forestry practices have fragmented its specialized habitat. The species' strict mycorrhizal association with mature birch trees makes it particularly vulnerable to forest management that favors younger stands and monoculture plantations. Climate change poses an additional threat by altering the moisture and temperature regimes essential for fruiting body development in northern boreal ecosystems.
Where does slank slimslørsopp live?
slank slimslørsopp 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 slank slimslørsopp?
The main threats to slank slimslørsopp 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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