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 (动物界)	Fungi (真菌界)
Phylum	Chordata (脊索动物门)	Ascomycota (子囊菌门)
Class	Mammalia (哺乳動物)	Eurotiomycetes (散囊菌綱)
Order	Rodentia (啮齿目)	Pyrenulales (小核衣菌目)
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

褐家鼠（Rattus norvegicus）在IUCN红色名录中被列为无危（LC）。其分布广泛，种群数量稳定，无紧迫保护关切。

光亮座囊衣（Pyrenula nitida）是生长于西欧湿润大西洋林古老阔叶树光滑树皮上的树皮生壳状地衣，具光滑光泽的橄榄绿至褐色叶状体和嵌入的烧瓶形子囊壳。被视为西欧古老持续性森林的旗舰指示种。因古树和古老森林生境的丧失而受到严重威胁，属濒危地衣。

Shared Countries

Both species can be found in 5 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden 🇺🇸 United States