Canadian beaver vs クビワスナバシリ

Castor canadensis compared with Rhinoptilus bitorquatus

Key Differences

Canadian beaver is Not Evaluated while クビワスナバシリ is Critically Endangered.

Taxonomic Classification

Rank	Canadian beaver	クビワスナバシリ
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)	Charadriiformes (チドリ目)
Family	Castoridae (Beavers)	Glareolidae
Genus	Castor (Beavers)	Rhinoptilus
Species	Castor canadensis	Rhinoptilus bitorquatus

Evolutionary Relationship

Canadian beaver and クビワスナバシリ share a common ancestor at the Phylum level: Chordata. (脊索動物)

表示 Phylum: Chordata

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

クビワスナバシリ

CR — Critically Endangered

Physical Characteristics

Attribute	Canadian beaver	クビワスナバシリ
Diet	Herbivore	—
Average Lifespan	15 years	—
Average Length	1.0 m	—
Average Weight	25.0 kg	—

Habitat & Geographic Range

Canadian beaver

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Widely distributed across Europe (15 countries), North America (United States), and South America (Argentina, Chile).

クビワスナバシリ

Habitat

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

Range

Found in Norway. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Canadian beaver

北米最大の齧歯類であるカナダビーバーは体重32kgにも達し、カナダ・米国北部の河川、湖沼、湿地に生息する優れた生態系エンジニアです。木を倒して数百メートルに及ぶダムを造ることで池を形成し、数百種の生息環境を提供します。その巣穴や運河は流域全体を変化させます。かつては毛皮のために絶滅寸前まで狩られましたが、個体数は大きく回復しています。