Long-tailed Ground Squirrel vs

Urocitellus undulatus compared with Usnea cornuta

Key Differences

• Long-tailed Ground Squirrel is Least Concern while is Near Threatened.

Taxonomic Classification

Rank	Long-tailed Ground Squirrel
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Mammalia (Mammals)	Lecanoromycetes (Lecanoromycetes)
Order	Rodentia (Rodents)	Lecanorales (Lecanorales)
Family	Sciuridae (Squirrels)	Parmeliaceae
Genus	Urocitellus	Usnea
Species	Urocitellus undulatus	Usnea cornuta

Conservation Status

Long-tailed Ground Squirrel

LC — Least Concern

NT — Near Threatened

Physical Characteristics

Attribute	Long-tailed Ground Squirrel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Long-tailed Ground Squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway, Portugal, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Usnea cornuta is a fruticose lichen in the family Parmeliaceae, assessed as Near Threatened (NT). It forms shrubby, branching thalli that hang from tree branches and twigs, typically in humid forest environments. Like all Usnea species, it is highly sensitive to air pollution, particularly sulfur dioxide, making it a useful bioindicator of air quality.