European Ground Squirrel vs

Spermophilus citellus compared with Frustulia rhomboides

Key Differences

• European Ground Squirrel is Endangered while is Not Evaluated.

Taxonomic Classification

Rank	European Ground Squirrel
Kingdom	Animalia (Animals)	Chromista (Chromista)
Phylum	Chordata (Chordates)	Ochrophyta (Ochrophyta)
Class	Mammalia (Mammals)	Bacillariophyceae (Bacillariophyceae)
Order	Rodentia (Rodents)	Naviculales (Naviculales)
Family	Sciuridae (Squirrels)	Amphipleuraceae
Genus	Spermophilus	Frustulia
Species	Spermophilus citellus	Frustulia rhomboides

Conservation Status

European Ground Squirrel

EN — Endangered

NE — Not Evaluated

Physical Characteristics

Attribute	European Ground Squirrel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

European Ground Squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ukraine. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Habitat

Native to Asia and Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (Taiwan), Europe (Norway, Portugal, Sweden), North America (United States), and South America (Brazil).

Frustulia rhomboides is a large, elongated freshwater diatom with a rhomboid outline and a distinctive raphe system embedded in siliceous ribs. It inhabits benthic and epiphytic habitats in acidic, humic freshwater environments including peat bogs and forest streams. This photosynthetic diatom is a bioindicator of acidic, dystrophic freshwater conditions.