Caucasian Birch Mouse vs Old Man'S Beard Lichen

Sicista caucasica compared with Usnea barbata

Key Differences

• Caucasian Birch Mouse is Near Threatened while Old Man'S Beard Lichen is Extinct.

Taxonomic Classification

Rank	Caucasian Birch Mouse	Old Man'S Beard Lichen
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Mammalia (Mammals)	Lecanoromycetes (Lecanoromycetes)
Order	Rodentia (Rodents)	Lecanorales (Lecanorales)
Family	Dipodidae	Parmeliaceae
Genus	Sicista	Usnea
Species	Sicista caucasica	Usnea barbata

Conservation Status

Caucasian Birch Mouse

NT — Near Threatened

Old Man'S Beard Lichen

EX — Extinct

Physical Characteristics

Attribute	Caucasian Birch Mouse	Old Man'S Beard Lichen
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Caucasian Birch Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Old Man'S Beard Lichen

Habitat

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

Range

Distributed across Denmark, Norway, Portugal, Sweden, and United States.

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.