EN

Six-celled Moss-dot

Bilimbia sabuletorum

Unknown

Overview

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

The Six-celled Moss-dot faces severe decline due to habitat degradation from atmospheric pollution, particularly nitrogen deposition and acid rain, which alter the chemistry of its specialized substrates. Urban development and quarrying activities have destroyed many of its traditional rock face and wall habitats. Climate change poses an additional threat through altered precipitation patterns that affect the delicate moisture balance required for this lichen's survival.

Threat summary

Habitat

This crustose lichen typically grows on siliceous rocks, old walls, and concrete surfaces in urban and semi-urban environments. It favors slightly shaded to moderately exposed surfaces with consistent moisture availability, often found on north-facing walls and weathered stone structures.

TERRESTRIAL· major

Other threatened species in Ramalinaceae

CR

Ramalina protensa

Unknown
VU

Kornet grenlav

Ramalina polymorpha

Unknown
VU

Bacidia friesiana

Unknown
VU

kristallundlav

Bacidia absistens

Unknown

Frequently asked questions

Why is Six-celled Moss-dot classified as Endangered?
Six-celled Moss-dot 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. The Six-celled Moss-dot faces severe decline due to habitat degradation from atmospheric pollution, particularly nitrogen deposition and acid rain, which alter the chemistry of its specialized substrates. Urban development and quarrying activities have destroyed many of its traditional rock face and wall habitats. Climate change poses an additional threat through altered precipitation patterns that affect the delicate moisture balance required for this lichen's survival.
Where does Six-celled Moss-dot live?
Six-celled Moss-dot 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 Six-celled Moss-dot?
The main threats to Six-celled Moss-dot 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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