Arthonia vinosa
VU

Arthonia vinosa

Local name: Rødplettet pletlav

Unknown

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

Overview

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

Rødplettet pletlav faces significant pressure from air pollution, particularly nitrogen deposition and sulfur compounds that alter bark chemistry and disrupt the delicate pH balance required for lichen growth. Forest management practices including selective logging and bark harvesting of host trees directly remove substrate habitat. Climate change compounds these threats by altering precipitation patterns and increasing temperature stress on both the lichen and its preferred tree hosts.

Threat summary

Habitat

This crustose lichen grows exclusively on the bark of deciduous trees, particularly favoring mature oak, beech, and maple trees in old-growth and semi-natural forests. It requires stable microclimatic conditions with consistent humidity levels and minimal air pollution, typically found in undisturbed woodland environments.

TERRESTRIAL· major

Other threatened species in Arthoniaceae

WitkringCR

Witkring

Sporodophoron cretaceum

Unknown
VU

tornflekklav

Arthonia ilicina

Unknown
VU

twijgvlekje

Arthonia punctiformis

Unknown
VU

stjerneflekklav

Arthonia stellaris

Unknown

Frequently asked questions

Why is Rødplettet pletlav classified as Vulnerable?
Rødplettet pletlav 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. Rødplettet pletlav faces significant pressure from air pollution, particularly nitrogen deposition and sulfur compounds that alter bark chemistry and disrupt the delicate pH balance required for lichen growth. Forest management practices including selective logging and bark harvesting of host trees directly remove substrate habitat. Climate change compounds these threats by altering precipitation patterns and increasing temperature stress on both the lichen and its preferred tree hosts.
Where does Rødplettet pletlav live?
Rødplettet pletlav 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 Rødplettet pletlav?
The main threats to Rødplettet pletlav 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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