Arctic lemming vs カワアジサシ

Dicrostonyx torquatus compared with Sterna aurantia

Key Differences

• Arctic lemming is Least Concern while カワアジサシ is Vulnerable.

Taxonomic Classification

Rank	Arctic lemming	カワアジサシ
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	Cricetidae	Laridae
Genus	Dicrostonyx	Sterna
Species	Dicrostonyx torquatus	Sterna aurantia

Evolutionary Relationship

Arctic lemming and カワアジサシ share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Arctic lemming

LC — Least Concern

カワアジサシ

VU — Vulnerable

Physical Characteristics

Attribute	Arctic lemming	カワアジサシ
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arctic lemming

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

カワアジサシ

Habitat

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

Range

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

Arctic lemming

The Arctic lemming (Dicrostonyx torquatus) is a species in the genus Dicrostonyx. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.