Ramalina baltica
CR

Ramalina baltica

Unknown

Photo: (c) Jurga Motiejūnaitė, some rights reserved (CC BY-NC), uploaded by Jurga Motiejūnaitė

Overview

Ramalina baltica is a species of lichen in the family Ramalinaceae. The lichen was formally described as a new species by Georg Lettau in 1912. It was proposed for inclusion in the red data book of Belarus. It is also found in North America, where it occurs in fog zones of Central California.

Sørlandsragg faces severe threats from air pollution, particularly nitrogen deposition and sulfur compounds, which dramatically alter the chemistry of its substrate and surrounding environment. Climate change is causing shifts in precipitation patterns and temperature regimes that affect the delicate moisture balance this lichen requires, while coastal development and infrastructure projects continue to destroy its specialized rocky habitats along the Norwegian coastline.

Threat summary

Habitat

Sørlandsragg grows exclusively on siliceous rocks and coastal cliffs in maritime environments along the southern Norwegian coast, particularly in areas with specific microclimatic conditions that provide the right balance of moisture and exposure. This lichen requires clean air and stable substrate chemistry to survive in these specialized rocky coastal habitats.

Other threatened species in Ramalinaceae

EN

Laurer's Catillaria

Megalaria laureri

Unknown
VU

Megalaria pulverea

Unknown
CR

Ramalina protensa

Unknown
circumspect dotted lichenCR

circumspect dotted lichen

Bacidia circumspecta

Unknown

Frequently asked questions

Why is Ramalina baltica classified as Critically Endangered?
Ramalina baltica is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Sørlandsragg faces severe threats from air pollution, particularly nitrogen deposition and sulfur compounds, which dramatically alter the chemistry of its substrate and surrounding environment. Climate change is causing shifts in precipitation patterns and temperature regimes that affect the delicate moisture balance this lichen requires, while coastal development and infrastructure projects continue to destroy its specialized rocky habitats along the Norwegian coastline.
Where does Ramalina baltica live?
Ramalina baltica 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 Ramalina baltica?
The main threats to Ramalina baltica 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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