Brown Rat vs

Rattus norvegicus compared with Hydropus trichoderma

Key Differences

Brown Rat is Least Concern while is Endangered.

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)	Mycenaceae
Genus	Rattus	Hydropus
Species	Rattus norvegicus	Hydropus trichoderma

Conservation Status

Brown Rat

LC — Least Concern

EN — Endangered

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

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.

Hydropus trichoderma is a small, saprotrophic mushroom with a delicate, slender stipe and a pale, convex cap that grows on decaying woody debris in forest habitats. It is recorded from temperate European forests and contributes to wood decomposition in woodland ecosystems. Its Endangered status reflects rarity and the decline of undisturbed, mature forest with adequate deadwood.