Arctic lemming vs Atiu Swiftlet

Dicrostonyx torquatus compared with Aerodramus sawtelli

Key Differences

• Arctic lemming is Least Concern while Atiu Swiftlet is Vulnerable.

Taxonomic Classification

Rank	Arctic lemming	Atiu Swiftlet
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Rodentia (Rodents)	Apodiformes (Apodiformes)
Family	Cricetidae	Apodidae
Genus	Dicrostonyx	Aerodramus
Species	Dicrostonyx torquatus	Aerodramus sawtelli

Evolutionary Relationship

Arctic lemming and Atiu Swiftlet share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Arctic lemming

LC — Least Concern

Atiu Swiftlet

VU — Vulnerable

Physical Characteristics

Attribute	Arctic lemming	Atiu Swiftlet
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arctic lemming

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Atiu Swiftlet

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.

Atiu Swiftlet

The Atiu Swiftlet (Aerodramus sawtelli) is a species in the genus Aerodramus. It is currently classified as Vulnerable on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.