Untidy Earwort
Scapania cuspiduligera
Conservation status data sourced from the IUCN Red List of Threatened Species.
Taxonomy & Classification
Kingdom
Plantae
Phylum
Marchantiophyta
Class
Jungermanniopsida
Order
Jungermanniales
Family
Scapaniaceae
Genus
Scapania
Untidy Earwort belongs to the family Scapaniaceae, order Jungermanniales, within the Jungermanniopsida class.
Species Profile
Species profile data sourced from the IUCN Red List of Threatened Species.
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.
Key Facts
Habitat & Distribution
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.
Threats
IUCN Red List: Critically Endangered
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.
Climate change impacts on moisture regimes
Habitat degradation and fragmentation
Air pollution and acid deposition
Competition from invasive bryophyte species
Disturbance from human activities
National vs Global Threat Status
How this species is assessed at the national level compared to its IUCN global status (CR).
| Country | National Status | Global Status | Comparison |
|---|---|---|---|
| EU | LCLeast Concern | CRCritically Endangered | Lower local risk |
| EU | LCLeast Concern | CRCritically Endangered | Lower local risk |
National Red List data sourced from the National Red List Project (nationalredlist.org, ZSL) and country-specific Red List authorities.
Community Sightings
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Sources & Attribution
How to Cite
IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS
GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org
National Red Lists: ZSL (2025). National Red List. Zoological Society of London. Available at: https://www.nationalredlist.org
This page: SpeciesRadar (2025). Untidy Earwort (Scapania cuspiduligera). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/untidy-earwort