skjoldkalklav
CR

skjoldkalklav

Toninia cinereovirens

Unknown

Photo: (c) Annie Evankow, some rights reserved (CC BY), uploaded by Annie Evankow

Overview

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

Toninia cinereovirens faces severe threats from air pollution and acid deposition, which degrade the specific chemical conditions required for this lichen's survival. Habitat loss through urbanization and industrial development has eliminated many suitable substrates, while climate change alters the delicate moisture and temperature regimes this species depends upon.

Threat summary

Habitat

This crustose lichen grows on calcareous rocks, concrete walls, and limestone substrates in urban and semi-urban environments. It typically occurs in areas with specific pH conditions and requires particular moisture regimes found in temperate regions.

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 skjoldkalklav classified as Critically Endangered?
skjoldkalklav 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. Toninia cinereovirens faces severe threats from air pollution and acid deposition, which degrade the specific chemical conditions required for this lichen's survival. Habitat loss through urbanization and industrial development has eliminated many suitable substrates, while climate change alters the delicate moisture and temperature regimes this species depends upon.
Where does skjoldkalklav live?
skjoldkalklav 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 skjoldkalklav?
The main threats to skjoldkalklav 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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