Schismatomma graphidioides
Local name: skriftskärelav
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
Schismatomma graphidioides faces severe decline due to air pollution and acid rain, which directly damage its sensitive thallus structure and disrupt the delicate chemical balance required for photosynthesis. Urban development and forest fragmentation have eliminated many of its traditional host trees, particularly old-growth deciduous species with suitable bark chemistry. Climate change compounds these pressures by altering precipitation patterns and increasing temperature extremes that stress this slow-growing lichen beyond its adaptive capacity.
Habitat
This crustose lichen grows exclusively on the bark of mature deciduous trees, particularly favoring species with smooth, slightly acidic bark in humid forest environments. It requires stable microclimatic conditions with consistent moisture levels and minimal air pollution, typically found in undisturbed woodland areas and old-growth forests.
Other threatened species in Roccellaceae
Threatened in Austria
Frequently asked questions
Why is skriftskärelav classified as Endangered?
Where does skriftskärelav live?
What are the main threats to skriftskärelav?
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