CR

Caloplaca alstrupii

Local name: Blære-orangelav

Unknown

Overview

Caloplaca alstrupii is a species of corticolous (bark-dwelling) crustose lichen in the family Teloschistaceae. Found in Denmark, it was described as a new species in 1999 by the lichenologist Ulrik Søchting. It is a member of a group of soredia-producing Caloplaca species that do not produce anthraquinone pigments; lacking these typically colourful pigments, the thallus of lichens in this group is often inconspicuous.

Caloplaca alstrupii is critically endangered due to its extremely limited distribution and vulnerability to habitat degradation. This rare lichen species faces threats from air pollution, climate change, and human disturbance to its specialized coastal rock habitats.

Threat summary

Other threatened species in Teloschistaceae

CR

Caloplaca conjungens

Unknown
Xanthomendoza oreganaVU

Xanthomendoza oregana

Unknown
CR

Calogaya schistidii

Unknown
CR

Orange-fruited Elm-lichen

Cerothallia luteoalba

Unknown

Frequently asked questions

Why is Blære-orangelav classified as Critically Endangered?
Blære-orangelav 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. Caloplaca alstrupii is critically endangered due to its extremely limited distribution and vulnerability to habitat degradation. This rare lichen species faces threats from air pollution, climate change, and human disturbance to its specialized coastal rock habitats.
Where does Blære-orangelav live?
Blære-orangelav 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 Blære-orangelav?
The main threats to Blære-orangelav 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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