Gray Birch Mouse vs limestone fern

Sicista pseudonapaea compared with Gymnocarpium robertianum

Key Differences

• Gray Birch Mouse is Data Deficient while limestone fern is Critically Endangered.

Taxonomic Classification

Rank	Gray Birch Mouse	limestone fern
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Tracheophyta
Class	Mammalia (Mammals)	Polypodiopsida (Polypodiopsida)
Order	Rodentia (Rodents)	Polypodiales (Polypodiales)
Family	Dipodidae	Cystopteridaceae
Genus	Sicista	Gymnocarpium
Species	Sicista pseudonapaea	Gymnocarpium robertianum

Conservation Status

Gray Birch Mouse

DD — Data Deficient

limestone fern

CR — Critically Endangered

Physical Characteristics

Attribute	Gray Birch Mouse	limestone fern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Gray Birch Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

limestone fern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Range

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