Witkring
CR

Witkring

Sporodophoron cretaceum

Unknown

Photo: Photo: (c) Valentin Hamon, some rights reserved (CC BY-NC), uploaded by Valentin Hamon

Overview

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

Sporodophoron cretaceum faces severe population declines due to widespread habitat destruction from agricultural expansion and urban development across its limited range. The species' specialized ecological requirements and small, fragmented populations make it extremely vulnerable to environmental changes and stochastic events.

Threat summary

Habitat

Inhabits specialized calcareous substrates in temperate grasslands and open woodlands, typically on limestone outcrops and chalk downs between 200-800m elevation. Requires specific soil chemistry and moisture conditions that support its unique ecological niche.

TERRESTRIAL· major

Other threatened species in Arthoniaceae

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tornflekklav

Arthonia ilicina

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VU

twijgvlekje

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Arthonia vinosaVU

Arthonia vinosa

Unknown
VU

stjerneflekklav

Arthonia stellaris

Unknown

Frequently asked questions

Why is Witkring classified as Critically Endangered?
Witkring 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. Sporodophoron cretaceum faces severe population declines due to widespread habitat destruction from agricultural expansion and urban development across its limited range. The species' specialized ecological requirements and small, fragmented populations make it extremely vulnerable to environmental changes and stochastic events.
Where does Witkring live?
Witkring 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 Witkring?
The main threats to Witkring 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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