VU

stjerneflekklav

Arthonia stellaris

Unknown

Overview

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

Arthonia stellaris faces significant pressure from air pollution, particularly nitrogen deposition and sulfur compounds that alter the chemistry of its bark substrates. Forest management practices including clear-cutting and selective logging destroy the mature deciduous trees this lichen requires, while climate change is shifting precipitation patterns and temperature ranges beyond the species' tolerance limits.

Threat summary

Habitat

This crustose lichen grows exclusively on the smooth bark of mature deciduous trees, particularly beech, maple, and ash in old-growth and semi-natural forests. It requires stable microclimatic conditions with high humidity and minimal disturbance, typically found in forest interiors rather than edge habitats.

TERRESTRIAL· major

Other threatened species in Arthoniaceae

WitkringCR

Witkring

Sporodophoron cretaceum

Unknown
VU

tornflekklav

Arthonia ilicina

Unknown
VU

twijgvlekje

Arthonia punctiformis

Unknown
Arthonia vinosaVU

Arthonia vinosa

Unknown

Frequently asked questions

Why is stjerneflekklav classified as Vulnerable?
stjerneflekklav 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. Arthonia stellaris faces significant pressure from air pollution, particularly nitrogen deposition and sulfur compounds that alter the chemistry of its bark substrates. Forest management practices including clear-cutting and selective logging destroy the mature deciduous trees this lichen requires, while climate change is shifting precipitation patterns and temperature ranges beyond the species' tolerance limits.
Where does stjerneflekklav live?
stjerneflekklav 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 stjerneflekklav?
The main threats to stjerneflekklav 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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