Untidy Earwort
CR

Untidy Earwort

Scapania cuspiduligera

UnknownLCEULCEU

Photo: Photo: (c) François-Xavier Taxil, some rights reserved (CC BY-NC), uploaded by François-Xavier Taxil

Overview

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

Scapania cuspiduligera faces severe threats from habitat degradation and loss of its specialized bryophyte communities. Climate change poses additional risks through altered moisture regimes and temperature fluctuations that affect the delicate microhabitats this liverwort requires. The species' limited distribution and specific ecological requirements make it particularly vulnerable to environmental changes.

Threat summary

Habitat

This liverwort typically inhabits moist, shaded rock surfaces, soil banks, and decaying wood in montane and boreal forest environments. It requires consistently humid microhabitats with stable moisture conditions, often found in ravines, stream banks, and sheltered woodland areas at higher elevations.

Other threatened species in Scapaniaceae

VU

Water Earwort

Scapania undulata

Unknown
Lesser Rough EarwortCR

Lesser Rough Earwort

Scapania aequiloba

Unknown
VU

Least Earwort

Scapania curta

Unknown
Blunt-leaved EarwortCR

Blunt-leaved Earwort

Diplophyllum obtusifolium

Unknown

Frequently asked questions

Why is Untidy Earwort classified as Critically Endangered?
Untidy Earwort 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. Scapania cuspiduligera faces severe threats from habitat degradation and loss of its specialized bryophyte communities. Climate change poses additional risks through altered moisture regimes and temperature fluctuations that affect the delicate microhabitats this liverwort requires. The species' limited distribution and specific ecological requirements make it particularly vulnerable to environmental changes.
Where does Untidy Earwort live?
Untidy Earwort 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 Untidy Earwort?
The main threats to Untidy Earwort 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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