Climacocystis borealis
EN

Climacocystis borealis

Local name: Polypore boréal

Unknown

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

Overview

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

Climacocystis borealis faces severe decline due to intensive logging practices that remove the large-diameter coniferous trees essential for its survival. Climate change compounds these pressures by altering boreal forest composition and reducing suitable host tree availability. The species' extremely slow growth rate and specific substrate requirements make population recovery exceptionally difficult once local populations are lost.

Threat summary

Habitat

This polypore fungus inhabits mature boreal and subalpine coniferous forests, growing exclusively on large-diameter dead or dying spruce, fir, and pine trees. It requires old-growth forest conditions with minimal disturbance and specific moisture and temperature regimes.

TERRESTRIAL· major

Other threatened species in Fomitopsidaceae

Vielgestaltige TrameteCR

Vielgestaltige Tramete

Antrodia heteromorpha

Unknown
kritporingCR

kritporing

Resinoporia crassa

Unknown

Frequently asked questions

Why is Polypore boréal classified as Endangered?
Polypore boréal 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. Climacocystis borealis faces severe decline due to intensive logging practices that remove the large-diameter coniferous trees essential for its survival. Climate change compounds these pressures by altering boreal forest composition and reducing suitable host tree availability. The species' extremely slow growth rate and specific substrate requirements make population recovery exceptionally difficult once local populations are lost.
Where does Polypore boréal live?
Polypore boréal 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 Polypore boréal?
The main threats to Polypore boréal 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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