Brown Rat vs

Rattus norvegicus compared with Pyrenula nitida

Key Differences

  • Brown Rat is Least Concern while is Endangered.

Taxonomic Classification

Rank Brown Rat
Kingdom Animalia (Animals) Fungi (Fungi)
Phylum Chordata (Chordates) Ascomycota (Sac Fungi)
Class Mammalia (Mammals) Eurotiomycetes (Eurotiomycetes)
Order Rodentia (Rodents) Pyrenulales (Pyrenulales)
Family Muridae (Mice & Rats) Pyrenulaceae
Genus Rattus Pyrenula
Species Rattus norvegicus Pyrenula nitida

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

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.

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.

Pyrenula nitida is a corticolous crustose lichen producing a smooth, glossy olive-green to brown thallus with embedded, flask-shaped perithecia on smooth bark of ancient broadleaf trees in humid Atlantic woodland. It is considered a flagship indicator species for long-continuity, old-growth woodland in western Europe. Endangered, this lichen is severely threatened by the loss of veteran trees and ancient woodland habitats.

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