vit knagglav
CR

vit knagglav

Thalloidima candidum

Unknown

Photo: Photo: (c) Rémy Poncet, some rights reserved (CC BY-NC), uploaded by Rémy Poncet

Overview

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

Thalloidima candidum faces severe threats from habitat loss due to deforestation and urban development, which has fragmented its remaining populations. Climate change is altering the specific microhabitat conditions this lichen requires, while air pollution from industrial activities is degrading the air quality essential for its survival.

Threat summary

Habitat

This crustose lichen species occurs on bark of mature deciduous trees in old-growth and semi-natural forests, particularly favoring oak and beech trees in humid, shaded environments. It requires stable microclimatic conditions with high air humidity and low levels of atmospheric pollution.

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 vit knagglav classified as Critically Endangered?
vit knagglav 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. Thalloidima candidum faces severe threats from habitat loss due to deforestation and urban development, which has fragmented its remaining populations. Climate change is altering the specific microhabitat conditions this lichen requires, while air pollution from industrial activities is degrading the air quality essential for its survival.
Where does vit knagglav live?
vit knagglav 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 vit knagglav?
The main threats to vit knagglav 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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