Alashan Ground Squirrel vs Canadian beaver

Spermophilus alashanicus compared with Castor canadensis

Key Differences

• Alashan Ground Squirrel is Least Concern while Canadian beaver is Not Evaluated.

Taxonomic Classification

Rank	Alashan Ground Squirrel	Canadian beaver
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Mammalia (哺乳類)	Mammalia (哺乳類)
Order same	Rodentia (ネズミ目)	Rodentia (ネズミ目)
Family	Sciuridae (Squirrels)	Castoridae (Beavers)
Genus	Spermophilus	Castor (Beavers)
Species	Spermophilus alashanicus	Castor canadensis

Evolutionary Relationship

Alashan Ground Squirrel and Canadian beaver share a common ancestor at the Order level: Rodentia. (ネズミ目)

Conservation Status

Alashan Ground Squirrel

LC — Least Concern

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Physical Characteristics

Attribute	Alashan Ground Squirrel	Canadian beaver
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	1.0 m
Average Weight	—	25.0 kg

Habitat & Geographic Range

Alashan Ground Squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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).

Alashan Ground Squirrel

The Alashan Ground Squirrel (Spermophilus alashanicus) is a species in the genus Spermophilus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

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。