Brown Rat vs

Rattus norvegicus compared with Micarea lignaria

Key Differences

• Brown Rat is Least Concern while is Endangered.

Taxonomic Classification

Rank	Brown Rat
Kingdom	Animalia (動物)	Fungi (菌界)
Phylum	Chordata (脊索動物)	Ascomycota (子嚢菌門)
Class	Mammalia (哺乳類)	Lecanoromycetes (チャシブゴケ菌綱)
Order	Rodentia (ネズミ目)	Lecanorales (チャシブゴケ目)
Family	Muridae (Mice & Rats)	Byssolomataceae
Genus	Rattus	Micarea
Species	Rattus norvegicus	Micarea lignaria

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

ドブネズミ（Rattus norvegicus）はIUCNレッドリストで軽度懸念（LC）に分類されています。分布域全体に広く生息し個体数は安定しており、緊急の保護上の懸念はありません。

Micarea lignaria は顆粒状の地衣体と小さな灰緑色の子器を持つ小型の痂状地衣類で、木材や樹皮の基質に適応している。温帯および亜寒帯林環境の酸性樹皮、木材、時には泥炭上に生育する。この光合成地衣類は藻類共生体を通じてエネルギーを得、木材表面のコロニー形成に貢献する。

Shared Countries

Both species can be found in 5 countries:

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