dot lichen
Arthonia incarnata
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
Arthonia incarnata faces severe decline due to air pollution and acid rain, which alter the bark chemistry of its host trees and reduce lichen diversity. Forest fragmentation and intensive forestry practices eliminate the old-growth deciduous trees with suitable bark conditions that this crustose lichen requires. Climate change compounds these pressures by altering precipitation patterns and increasing drought stress on host trees.
Habitat
This crustose lichen grows on the smooth bark of mature deciduous trees, particularly beech, oak, and maple in old-growth and semi-natural forests. It requires stable microclimatic conditions with high humidity and minimal air pollution, typically found in undisturbed woodland environments.
Other threatened species in Arthoniaceae
Frequently asked questions
Why is dot lichen classified as Vulnerable?
Where does dot lichen live?
What are the main threats to dot lichen?
Get weekly conservation intelligence
One short digest a week of the most striking species and country data we ship, plus breaking conservation news paired with our database where it matters.
Free, no spam. One-click unsubscribe in every email.