Brown Rat vs

Rattus norvegicus compared with Cortinarius urbicus

Key Differences

Brown Rat is Least Concern while is Data Deficient.

Taxonomic Classification

Rank	Brown Rat
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Basidiomycota (Club Fungi)
Class	Mammalia (Mammals)	Agaricomycetes (Mushrooms)
Order	Rodentia (Rodents)	Agaricales (Gilled Mushrooms)
Family	Muridae (Mice & Rats)	Cortinariaceae
Genus	Rattus	Cortinarius
Species	Rattus norvegicus	Cortinarius urbicus

Conservation Status

Brown Rat

LC — Least Concern

DD — Data Deficient

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

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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.

Cortinarius urbicus is a robust, fibrous-capped mushroom in the Cortinarius genus with a silky brown cap and rust-spored gills at maturity. It inhabits coniferous and mixed forests, forming ectomycorrhizal associations with spruce, pine, and occasionally deciduous trees. This fungus obtains nutrients by trading sugars with its tree partners in forest soil environments.