レイサンマガモ vs small tortoiseshell

Anas laysanensis compared with Aglais urticae

Key Differences

• レイサンマガモ is Critically Endangered while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	レイサンマガモ	small tortoiseshell
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Chordata (脊索動物)	Arthropoda (節足動物)
Class	Aves (鳥類)	Insecta (昆虫)
Order	Anseriformes (カモ目)	Lepidoptera (チョウ目)
Family	Anatidae	Nymphalidae (Brush-footed Butterflies)
Genus	Anas	Aglais
Species	Anas laysanensis	Aglais urticae

Evolutionary Relationship

レイサンマガモ and small tortoiseshell share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

レイサンマガモ

CR — Critically Endangered

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	レイサンマガモ	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

レイサンマガモ

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, France, Netherlands, Norway, and United Kingdom. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

small tortoiseshell

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (41 countries). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

レイサンマガモ

レイサンガモ（Anas laysanensis）はIUCNレッドリストで絶滅寸前（CR）に分類されています。深刻な個体数減少と生息地の喪失により、野生での絶滅リスクが極めて高い種です。

small tortoiseshell

スモールトータスシェル(Aglais urticae)はIUCNレッドリストで準絶滅危惧(NT)に分類されている。絶滅危惧種に分類される一歩手前の段階で、保全措置がなければ脆弱になる可能性のある個体群を持つ。

Shared Countries

Both species can be found in 5 countries:

🇧🇪 Belgium 🇫🇷 France 🇳🇱 Netherlands 🇳🇴 Norway 🇬🇧 United Kingdom