Concentric Ring Lichen vs European Ground Squirrel

Arctoparmelia centrifuga compared with Spermophilus citellus

Key Differences

• Concentric Ring Lichen is Least Concern while European Ground Squirrel is Endangered.

Taxonomic Classification

Rank	Concentric Ring Lichen	European Ground Squirrel
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Chordata (Chordates)
Class	Lecanoromycetes (Lecanoromycetes)	Mammalia (Mammals)
Order	Lecanorales (Lecanorales)	Rodentia (Rodents)
Family	Parmeliaceae	Sciuridae (Squirrels)
Genus	Arctoparmelia	Spermophilus
Species	Arctoparmelia centrifuga	Spermophilus citellus

Conservation Status

Concentric Ring Lichen

LC — Least Concern

European Ground Squirrel

EN — Endangered

Physical Characteristics

Attribute	Concentric Ring Lichen	European Ground Squirrel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Concentric Ring Lichen

Habitat

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

Range

Distributed across Norway, Sweden, and United States.

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.