Cercidospora macrospora
CR

Cercidospora macrospora

Unknown

Photo: (c) dieterh, all rights reserved, uploaded by dieterh

Overview

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

Cercidospora macrospora faces severe threats from habitat degradation and loss of its specialized lichen host substrates. As a parasitic fungus dependent on specific lichen species, any decline in host populations directly threatens its survival. Air pollution and climate change alter the delicate chemical balance required for both the fungus and its lichen hosts to thrive. The species' extremely limited distribution makes it particularly vulnerable to local environmental changes.

Threat summary

Habitat

This parasitic fungus inhabits specialized microhabitats on the surfaces of specific lichen species, typically found on tree bark or rock surfaces in temperate forest environments. The species requires very specific environmental conditions including particular humidity levels, air quality, and the presence of its obligate lichen hosts.

TERRESTRIAL· major

Frequently asked questions

Why is Cercidospora macrospora classified as Critically Endangered?
Cercidospora macrospora 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. Cercidospora macrospora faces severe threats from habitat degradation and loss of its specialized lichen host substrates. As a parasitic fungus dependent on specific lichen species, any decline in host populations directly threatens its survival. Air pollution and climate change alter the delicate chemical balance required for both the fungus and its lichen hosts to thrive. The species' extremely limited distribution makes it particularly vulnerable to local environmental changes.
Where does Cercidospora macrospora live?
Cercidospora macrospora 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 Cercidospora macrospora?
The main threats to Cercidospora macrospora 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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