Long-tailed Ground Squirrel vs

Urocitellus undulatus compared with Micarea lignaria

Key Differences

• Long-tailed Ground Squirrel is Least Concern while is Endangered.

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)	Byssolomataceae
Genus	Urocitellus	Micarea
Species	Urocitellus undulatus	Micarea lignaria

Conservation Status

Long-tailed Ground Squirrel

LC — Least Concern

EN — Endangered

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 and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, Portugal, Sweden, and United States. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Micarea lignaria is a small crustose lichen with granular thallus and tiny grey-green apothecia, adapted to wood and bark substrates. It grows on bare acidic bark, wood, and sometimes peat in temperate and boreal forest environments. This photosynthetic lichen obtains energy through its algal partner and contributes to wood surface colonization.