CR

stuvdverglav

Ramonia subsphaeroides

Unknown

Overview

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

Ramonia subsphaeroides faces severe population declines due to widespread habitat destruction from deforestation and urban development across its limited range. The species' highly specialized ecological requirements and small, fragmented populations make it extremely vulnerable to environmental changes and human disturbance.

Threat summary

Habitat

This crustose lichen species occurs on bark of deciduous trees and occasionally on rock surfaces in humid temperate forests and woodland edges. It typically grows in areas with high air humidity and low levels of atmospheric pollution.

Other threatened species in Gyalectaceae

Truncated Dimple LichenCR

Truncated Dimple Lichen

Gyalecta truncigena

Unknown
VU

Valse abrikoosjeskorst

Pachyphiale carneola

Unknown

Frequently asked questions

Why is stuvdverglav classified as Critically Endangered?
stuvdverglav 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. Ramonia subsphaeroides faces severe population declines due to widespread habitat destruction from deforestation and urban development across its limited range. The species' highly specialized ecological requirements and small, fragmented populations make it extremely vulnerable to environmental changes and human disturbance.
Where does stuvdverglav live?
stuvdverglav 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 stuvdverglav?
The main threats to stuvdverglav 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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