Brown Rat vs

Rattus norvegicus compared with Leproplaca cirrochroa

Key Differences

Brown Rat is Least Concern while is Near Threatened.

Taxonomic Classification

Rank	Brown Rat
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Mammalia (Mammals)	Lecanoromycetes (Lecanoromycetes)
Order	Rodentia (Rodents)	Teloschistales (Teloschistales)
Family	Muridae (Mice & Rats)	Teloschistaceae
Genus	Rattus	Leproplaca
Species	Rattus norvegicus	Leproplaca cirrochroa

Conservation Status

Brown Rat

LC — Least Concern

NT — Near Threatened

Physical Characteristics

Attribute	Brown Rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown Rat

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 10 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (11 countries), Asia (15 countries), Europe (41 countries), North America (16 countries), Oceania and the Pacific (10 countries), and South America (10 countries).

Habitat

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

Range

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

Brown Rat

Brown Rat (Rattus norvegicus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Leproplaca cirrochroa is a crustose lichen in the family Teloschistaceae, assessed as Near Threatened (NT). It grows on nutrient-enriched rock surfaces and tree bark, often in coastal or sheltered habitats. Like other members of the genus, it produces bright orange-yellow thalli from anthraquinone pigments.