Aosuji tobiei vs アジサシ

Aetomylaeus nichofii compared with Sterna hirundo

Key Differences

• Aosuji tobiei is Vulnerable while アジサシ is Endangered.

Taxonomic Classification

Rank	Aosuji tobiei	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	Elasmobranchii	Aves (鳥類)
Order	Myliobatiformes (トビエイ目)	Charadriiformes (チドリ目)
Family	Myliobatidae	Laridae
Genus	Aetomylaeus	Sterna
Species	Aetomylaeus nichofii	Sterna hirundo

Evolutionary Relationship

Aosuji tobiei and アジサシ share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Aosuji tobiei

VU — Vulnerable

アジサシ

EN — Endangered

Physical Characteristics

Attribute	Aosuji tobiei	アジサシ
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Aosuji tobiei

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

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

アジサシ

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 9 distinct biome types spanning the Neotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Europe (7 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Aosuji tobiei

The Banded eagle ray (Aetomylaeus nichofii) is a species in the genus Aetomylaeus. It is currently classified as Vulnerable on the IUCN Red List. Native to Asia, inhabiting ecosystems characteristic of the region.

アジサシ

アジサシ（Sterna hirundo）はIUCNレッドリストで危機（EN）に分類されている。野生での絶滅リスクが高く、著しい個体数の減少と生存への継続的な脅威がある。