Smooth Map Lichen
Rhizocarpon hochstetteri
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
Smooth Map Lichen faces significant threats from air pollution, particularly nitrogen deposition and sulfur compounds that alter the chemical composition of its rock substrates. Climate change poses additional risks through altered precipitation patterns and temperature fluctuations that affect the delicate moisture balance required for lichen survival. Urban development and quarrying activities directly destroy suitable rock face habitats, while recreational climbing can cause physical damage to lichen colonies.
Habitat
Rhizocarpon hochstetteri grows exclusively on siliceous rock surfaces, particularly granite and quartzite outcrops in montane and subalpine environments. The species requires specific microclimate conditions with moderate moisture levels and clean air, typically found on exposed cliff faces and boulder fields at elevations between 800-2000 meters.
Other threatened species in Rhizocarpaceae
Threatened in Åland Islands
Frequently asked questions
Why is Smooth Map Lichen classified as Vulnerable?
Where does Smooth Map Lichen live?
What are the main threats to Smooth Map Lichen?
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