Brown Rat vs アメリカホシハジロ

Rattus norvegicus compared with Aythya americana

Key Differences

• Brown Rat is Least Concern while アメリカホシハジロ is Not Evaluated.

Taxonomic Classification

Rank	Brown Rat	アメリカホシハジロ
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Mammalia (哺乳類)	Aves (鳥類)
Order	Rodentia (ネズミ目)	Anseriformes (カモ目)
Family	Muridae (Mice & Rats)	Anatidae
Genus	Rattus	Aythya
Species	Rattus norvegicus	Aythya americana

Evolutionary Relationship

Brown Rat and アメリカホシハジロ share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Brown Rat

LC — Least Concern

アメリカホシハジロ

NE — Not Evaluated

Physical Characteristics

Attribute	Brown Rat	アメリカホシハジロ
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).

アメリカホシハジロ

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (7 countries) and North America (United States).

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。

アメリカホシハジロ

アカアタマハジロ（Aythya americana）はIUCNレッドリストで未評価（NE）に分類されている。IUCNレッドリスト基準でまだ評価されておらず、保全状況は未確定である。

Shared Countries

Both species can be found in 8 countries:

🇧🇪 Belgium 🇫🇷 France 🇩🇪 Germany 🇳🇱 Netherlands 🇳🇴 Norway 🇸🇪 Sweden 🇬🇧 United Kingdom 🇺🇸 United States