Powder Post Beetle
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Powder Post Beetle

Stephanopachys substriatus

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

Overview

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

Stephanopachys substriatus faces severe population decline due to widespread loss of its specialized old-growth forest habitat through logging and land conversion. The species' dependence on specific dead wood substrates and fungal associations makes it extremely vulnerable to forest fragmentation and changes in forest management practices that remove decaying wood.

Threat summary

Habitat

Inhabits mature and old-growth coniferous and mixed forests, particularly those with abundant dead and decaying wood substrates. The species requires specific microhabitats within fallen logs, dead branches, and fungus-infected wood in temperate forest ecosystems.

Frequently asked questions

Why is Powder Post Beetle classified as Critically Endangered?
Powder Post Beetle is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Stephanopachys substriatus faces severe population decline due to widespread loss of its specialized old-growth forest habitat through logging and land conversion. The species' dependence on specific dead wood substrates and fungal associations makes it extremely vulnerable to forest fragmentation and changes in forest management practices that remove decaying wood.
Where does Powder Post Beetle live?
Powder Post Beetle 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 Powder Post Beetle?
The main threats to Powder Post Beetle 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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