Resinous Polypore
VU

Resinous Polypore

Ischnoderma resinosum

Unknown

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Ischnoderma_resinosum

Overview

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

The Resinous Polypore faces significant decline due to intensive forestry practices that remove the large, old deciduous trees essential for its survival. Commercial logging operations typically harvest trees before they reach the advanced decay stages this fungus requires for colonization. Additionally, forest fragmentation reduces the connectivity between suitable host trees, limiting spore dispersal and genetic exchange between populations.

Threat summary

Habitat

This saprotrophic fungus inhabits mature deciduous and mixed forests, growing exclusively on dead or dying hardwood trees, particularly beech, oak, and birch. It requires large-diameter deadwood in advanced stages of decay, typically found in old-growth forests or woodland areas with minimal management intervention.

TERRESTRIAL· major

Frequently asked questions

Why is Resinous Polypore classified as Vulnerable?
Resinous Polypore 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 Resinous Polypore faces significant decline due to intensive forestry practices that remove the large, old deciduous trees essential for its survival. Commercial logging operations typically harvest trees before they reach the advanced decay stages this fungus requires for colonization. Additionally, forest fragmentation reduces the connectivity between suitable host trees, limiting spore dispersal and genetic exchange between populations.
Where does Resinous Polypore live?
Resinous Polypore 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 Resinous Polypore?
The main threats to Resinous Polypore 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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