Weigel's Bryum Moss
Bryum weigelii
Conservation status data sourced from the IUCN Red List of Threatened Species.
Photo: (c) michael-lueth, some rights reserved (CC BY-NC)
Taxonomy & Classification
Kingdom
Plantae
Phylum
Bryophyta
Class
Bryopsida
Order
Bryales
Family
Bryaceae
Genus
Bryum
Weigel's Bryum Moss belongs to the family Bryaceae, order Bryales, within the Bryopsida class.
Species Profile
Species profile data sourced from the IUCN Red List of Threatened Species.
Weigel's Bryum Moss faces severe threats from habitat degradation and loss of its specialized microhabitats. Climate change and human disturbance to its limited range pose significant risks to the remaining populations of this critically endangered bryophyte.
Key Facts
Habitat & Distribution
This moss species typically occurs on calcareous soils, limestone rocks, and alkaline substrates in open grasslands and rocky outcrops. It requires specific moisture conditions and is often found in areas with seasonal water availability and moderate disturbance regimes.
Threats
IUCN Red List: Critically Endangered
Weigel's Bryum Moss faces severe threats from habitat degradation and loss of its specialized microhabitats. Climate change and human disturbance to its limited range pose significant risks to the remaining populations of this critically endangered bryophyte.
Climate change impacts on moisture regimes
Habitat loss and degradation
Limited distribution and small population size
Air pollution and atmospheric changes
Human disturbance and trampling
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
Report a sightingNo community sightings yet. Be the first to report!
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). Weigel's Bryum Moss (Bryum weigelii). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/weigels-bryum-moss