ホシハジロ vs Irrawaddy dolphin

Aythya ferina compared with Orcaella brevirostris

Key Differences

• ホシハジロ is Near Threatened while Irrawaddy dolphin is Endangered.

Taxonomic Classification

Rank	ホシハジロ	Irrawaddy dolphin
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Aves (鳥類)	Mammalia (哺乳類)
Order	Anseriformes (カモ目)	Cetacea (Whales & Dolphins)
Family	Anatidae	Delphinidae (Oceanic Dolphins)
Genus	Aythya	Orcaella
Species	Aythya ferina	Orcaella brevirostris

Evolutionary Relationship

ホシハジロ and Irrawaddy dolphin share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

ホシハジロ

NT — Near Threatened

Irrawaddy dolphin

EN — Endangered

Physical Characteristics

Attribute	ホシハジロ	Irrawaddy dolphin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

ホシハジロ

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (8 countries), and North America (United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Irrawaddy dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

ホシハジロ

ホシハジロ（Aythya ferina）はIUCNレッドリストで準絶滅危惧（NT）に分類されている。脅威のある種の基準に近く、保全措置がなければ脆弱になる可能性がある。