VU

Kornet grenlav

Ramalina polymorpha

Unknown

Overview

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

Kornet grenlav faces severe decline due to air pollution, particularly nitrogen deposition and sulfur compounds that alter its substrate chemistry and disrupt its symbiotic relationship with photosynthetic algae. Urban expansion and industrial development have eliminated many of its traditional coastal and inland rocky habitats, while climate change is shifting precipitation patterns that affect the moisture regimes this lichen requires for growth and reproduction.

Threat summary

Habitat

Kornet grenlav grows on exposed siliceous rocks, coastal cliffs, and inland rocky outcrops, typically in areas with moderate to high humidity and clean air conditions. This lichen species requires specific microclimate conditions with regular moisture from fog, dew, or light precipitation while avoiding areas with excessive air pollution.

TERRESTRIAL· major

Frequently asked questions

Why is Kornet grenlav classified as Vulnerable?
Kornet grenlav 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. Kornet grenlav faces severe decline due to air pollution, particularly nitrogen deposition and sulfur compounds that alter its substrate chemistry and disrupt its symbiotic relationship with photosynthetic algae. Urban expansion and industrial development have eliminated many of its traditional coastal and inland rocky habitats, while climate change is shifting precipitation patterns that affect the moisture regimes this lichen requires for growth and reproduction.
Where does Kornet grenlav live?
Kornet grenlav occurs in Åland Islands, Algeria, Andorra, Argentina, Armenia, and Austria (plus 43 other countries). Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Kornet grenlav?
The main threats to Kornet grenlav 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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