Canadian beaver vs Rufescent Sharp-tail Bee

Castor canadensis compared with Coelioxys rufescens

Key Differences

• Canadian beaver is Not Evaluated while Rufescent Sharp-tail Bee is Vulnerable.

Taxonomic Classification

Rank	Canadian beaver	Rufescent Sharp-tail Bee
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Chordata (脊索動物)	Arthropoda (節足動物)
Class	Mammalia (哺乳類)	Insecta (昆虫)
Order	Rodentia (ネズミ目)	Hymenoptera (ハチ目)
Family	Castoridae (Beavers)	Megachilidae
Genus	Castor (Beavers)	Coelioxys
Species	Castor canadensis	Coelioxys rufescens

Evolutionary Relationship

Canadian beaver and Rufescent Sharp-tail Bee share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Rufescent Sharp-tail Bee

VU — Vulnerable

Physical Characteristics

Attribute	Canadian beaver	Rufescent Sharp-tail Bee
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).

Rufescent Sharp-tail Bee

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Luxembourg, Norway, and Sweden. Currently classified as Vulnerable 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。

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇱🇺 Luxembourg 🇳🇴 Norway 🇸🇪 Sweden