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violettbrun skivlav

Lecanographa amylacea

Unknown

Overview

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

Lecanographa amylacea faces severe decline due to air pollution and acid rain, which alter the bark chemistry of its host trees and make conditions unsuitable for lichen growth. Forest fragmentation and intensive forestry practices have reduced the availability of suitable old-growth deciduous trees, particularly ancient oaks and beeches that provide the stable, humid microhabitats this species requires. Climate change compounds these pressures by altering precipitation patterns and increasing temperature fluctuations that stress both the lichen and its host trees.

Threat summary

Habitat

This crustose lichen grows exclusively on the bark of old deciduous trees, particularly favoring ancient oaks, beeches, and other mature hardwoods in undisturbed forest environments. It requires stable, humid conditions with minimal air pollution, typically found in old-growth forests and well-established woodland areas with continuous canopy cover.

TERRESTRIAL· major

Frequently asked questions

Why is violettbrun skivlav classified as Endangered?
violettbrun skivlav is classified as Endangered — facing a very high risk of extinction in the wild — because population numbers are declining steeply and key habitats are under sustained pressure. Lecanographa amylacea faces severe decline due to air pollution and acid rain, which alter the bark chemistry of its host trees and make conditions unsuitable for lichen growth. Forest fragmentation and intensive forestry practices have reduced the availability of suitable old-growth deciduous trees, particularly ancient oaks and beeches that provide the stable, humid microhabitats this species requires. Climate change compounds these pressures by altering precipitation patterns and increasing temperature fluctuations that stress both the lichen and its host trees.
Where does violettbrun skivlav live?
violettbrun skivlav 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 violettbrun skivlav?
The main threats to violettbrun skivlav 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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