Blue Hawker vs Canadian beaver

Aeshna cyanea compared with Castor canadensis

Key Differences

• Blue Hawker is Least Concern while Canadian beaver is Not Evaluated.

Taxonomic Classification

Rank	Blue Hawker	Canadian beaver
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Arthropoda (節足動物)	Chordata (脊索動物)
Class	Insecta (昆虫)	Mammalia (哺乳類)
Order	Odonata (蜻蛉目)	Rodentia (ネズミ目)
Family	Aeshnidae	Castoridae (Beavers)
Genus	Aeshna	Castor (Beavers)
Species	Aeshna cyanea	Castor canadensis

Evolutionary Relationship

Blue Hawker and Canadian beaver share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

Blue Hawker

LC — Least Concern

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Physical Characteristics

Attribute	Blue Hawker	Canadian beaver
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	1.0 m
Average Weight	—	25.0 kg

Habitat & Geographic Range

Blue Hawker

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Luxembourg, Norway, and Sweden.

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).

Blue Hawker

ブルーホーカー（Aeshna cyanea）はIUCNレッドリストで軽度懸念（LC）に分類されています。分布域全体で広く豊富に生息し、個体数は安定しており、即座の保全上の懸念はありません。

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