vs Japanese Water Shrew

Bacidia rosella compared with Chimarrogale platycephalus

Key Differences

• is Critically Endangered while Japanese Water Shrew is Least Concern.

Taxonomic Classification

Rank		Japanese Water Shrew
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Chordata (Chordates)
Class	Lecanoromycetes (Lecanoromycetes)	Mammalia (Mammals)
Order	Lecanorales (Lecanorales)	Soricomorpha (Soricomorpha)
Family	Ramalinaceae	Soricidae
Genus	Bacidia	Chimarrogale
Species	Bacidia rosella	Chimarrogale platycephalus

Conservation Status

CR — Critically Endangered

Japanese Water Shrew

LC — Least Concern

Physical Characteristics

Attribute		Japanese Water Shrew
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 5 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Denmark, Norway, Portugal, Sweden, and United States. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Japanese Water Shrew

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Bacidia rosella is a crustose lichen in the family Ramalinaceae, assessed as Critically Endangered (CR). It grows on the smooth bark of ancient trees in old-growth woodland habitats with long ecological continuity. Its critically endangered status reflects extreme rarity and the near-total loss of suitable veteran tree habitats across its range.