Amazon River Dolphin vs ハジロコチドリ

Inia geoffrensis compared with Charadrius hiaticula

Key Differences

• Amazon River Dolphin is Data Deficient while ハジロコチドリ is Critically Endangered.

Taxonomic Classification

Rank	Amazon River Dolphin	ハジロコチドリ
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	Cetacea (Whales & Dolphins)	Charadriiformes (チドリ目)
Family	Iniidae	Charadriidae
Genus	Inia	Charadrius
Species	Inia geoffrensis	Charadrius hiaticula

Evolutionary Relationship

Amazon River Dolphin and ハジロコチドリ share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Amazon River Dolphin

DD — Data Deficient

ハジロコチドリ

CR — Critically Endangered

Physical Characteristics

Attribute	Amazon River Dolphin	ハジロコチドリ
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazon River Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

ハジロコチドリ

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 8 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (6 countries) and North America (United States). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Amazon River Dolphin

The Amazon River Dolphin (Inia geoffrensis) is a species in the genus Inia. Its conservation status is listed as Data Deficient, indicating insufficient data for assessment. Typically found in diverse terrestrial and aquatic ecosystems.

ハジロコチドリ

ハジロコチドリ（Charadrius hiaticula）はIUCNレッドリストで絶滅危惧IA類（CR）に分類されている。著しい個体数減少と生息地喪失により、野生での絶滅リスクが非常に高い。