VU

Golden Webcap

Cortinarius humicola

Unknown

Overview

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

The Golden Webcap faces severe pressure from habitat degradation in its specialized old-growth forest ecosystems, where logging and forest fragmentation have reduced suitable mycorrhizal partnerships with ancient tree hosts. Climate change compounds these threats by altering soil moisture regimes and temperature patterns critical for fruiting body development, while increased recreational activities in remaining forest fragments lead to soil compaction and disturbance of the delicate fungal networks.

Threat summary

Habitat

The Golden Webcap is restricted to mature coniferous and mixed forests, particularly those with well-established mycorrhizal relationships with spruce, fir, and pine species. It requires undisturbed forest floors with deep organic soil layers and stable moisture conditions typical of old-growth ecosystems.

TERRESTRIAL· major

Frequently asked questions

Why is Golden Webcap classified as Vulnerable?
Golden Webcap 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. The Golden Webcap faces severe pressure from habitat degradation in its specialized old-growth forest ecosystems, where logging and forest fragmentation have reduced suitable mycorrhizal partnerships with ancient tree hosts. Climate change compounds these threats by altering soil moisture regimes and temperature patterns critical for fruiting body development, while increased recreational activities in remaining forest fragments lead to soil compaction and disturbance of the delicate fungal networks.
Where does Golden Webcap live?
Golden Webcap 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 Golden Webcap?
The main threats to Golden Webcap 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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