Japanese Weasel vs Ruff

Mustela itatsi compared with Calidris pugnax

Key Differences

• Japanese Weasel is Near Threatened while Ruff is Least Concern.

Taxonomic Classification

Rank	Japanese Weasel	Ruff
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum same	Chordata (척삭동물)	Chordata (척삭동물)
Class	Mammalia (포유류)	Aves (새)
Order	Carnivora (식육목)	Charadriiformes (도요목)
Family	Mustelidae (Weasels & Otters)	Scolopacidae
Genus	Mustela	Calidris
Species	Mustela itatsi	Calidris pugnax

Evolutionary Relationship

Japanese Weasel and Ruff share a common ancestor at the Phylum level: Chordata. (척삭동물)

Conservation Status

Japanese Weasel

NT — Near Threatened

Ruff

LC — Least Concern

Physical Characteristics

Attribute	Japanese Weasel	Ruff
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Japanese Weasel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Japan. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Ruff

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), North America (United States), and South America (Colombia, Venezuela).

Ruff

Ruff(Calidris pugnax)는 IUCN 적색 목록에서 관심 대상(LC)으로 분류된다. 분포 범위 전역에 널리 퍼져 있고 개체 수가 풍부하며, 개체군이 안정적이고 즉각적인 보전 우려가 없다.