ハジロコチドリ vs Leatherback Sea Turtle

Charadrius hiaticula compared with Dermochelys coriacea

Key Differences

• ハジロコチドリ is Critically Endangered while Leatherback Sea Turtle is Vulnerable.

Taxonomic Classification

Rank	ハジロコチドリ	Leatherback Sea Turtle
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Aves (鳥類)	Reptilia (爬虫類)
Order	Charadriiformes (チドリ目)	Testudines (カメ)
Family	Charadriidae	Cheloniidae (Sea Turtles)
Genus	Charadrius	Chelonia (Green Sea Turtles)
Species	Charadrius hiaticula	Dermochelys coriacea

Evolutionary Relationship

ハジロコチドリ and Leatherback Sea Turtle share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

ハジロコチドリ

CR — Critically Endangered

Leatherback Sea Turtle

VU — Vulnerable

Population: ~35.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	ハジロコチドリ	Leatherback Sea Turtle
Diet	—	Carnivore
Average Lifespan	—	50 years
Average Length	—	2.0 m
Average Weight	—	500.0 kg

Habitat & Geographic Range

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.

Leatherback Sea Turtle

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 5 distinct biome types spanning the Australasia and Indomalayan and Neotropic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Costa Rica, Indonesia, Malaysia, and Trinidad and Tobago. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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。

Leatherback Sea Turtle

オサガメは現存する最大のカメであり、爬虫類の中で4番目に重い種です。他のカメとは異なり、硬い甲羅ではなく柔らかく革のような皮膚に覆われています。