ユリカモメ vs Gray-shanked Douc Langur

Chroicocephalus ridibundus compared with Pygathrix cinerea

Key Differences

• ユリカモメ is Vulnerable while Gray-shanked Douc Langur is Critically Endangered.

Taxonomic Classification

Rank	ユリカモメ	Gray-shanked Douc Langur
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	Charadriiformes (チドリ目)	Primates (サル目)
Family	Laridae	Cercopithecidae (Old World Monkeys)
Genus	Chroicocephalus	Pygathrix
Species	Chroicocephalus ridibundus	Pygathrix cinerea

Evolutionary Relationship

ユリカモメ and Gray-shanked Douc Langur share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

ユリカモメ

VU — Vulnerable

Gray-shanked Douc Langur

CR — Critically Endangered

Physical Characteristics

Attribute	ユリカモメ	Gray-shanked Douc Langur
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

ユリカモメ

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

Gray-shanked Douc Langur

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

ユリカモメ

Black-headed Gull（Chroicocephalus ridibundus）はIUCNレッドリストで危急種（VU）に分類されています。野生での絶滅リスクが高く、個体数が減少し、生息地への圧力が増大しています。