Caucasian Birch Mouse vs

Sicista caucasica compared with Nitzschia flexa

Key Differences

• Caucasian Birch Mouse is Near Threatened while is Not Evaluated.

Taxonomic Classification

Rank	Caucasian Birch Mouse
Kingdom	Animalia (Animals)	Chromista (Chromista)
Phylum	Chordata (Chordates)	Ochrophyta (Ochrophyta)
Class	Mammalia (Mammals)	Bacillariophyceae (Bacillariophyceae)
Order	Rodentia (Rodents)	Bacillariales (Bacillariales)
Family	Dipodidae	Bacillariaceae
Genus	Sicista	Nitzschia
Species	Sicista caucasica	Nitzschia flexa

Conservation Status

Caucasian Birch Mouse

NT — Near Threatened

NE — Not Evaluated

Physical Characteristics

Attribute	Caucasian Birch Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Caucasian Birch Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

Caucasian Birch Mouse

The Caucasian Birch Mouse (Sicista caucasica) is a species in the genus Sicista. It is currently classified as Near Threatened on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Nitzschia flexa is a pennate diatom (class Bacillariophyceae) with a characteristically curved or bent raphe system that gives the genus its distinctive appearance. It inhabits freshwater to brackish environments and contributes to benthic and planktonic algal communities. As a photosynthetic microalga, it plays a foundational role in aquatic food webs and primary production.