レイサンマガモ vs Prostrate false buttonweed

Anas laysanensis compared with Spermacoce prostrata

Key Differences

• レイサンマガモ is Critically Endangered while Prostrate false buttonweed is Not Evaluated.

Taxonomic Classification

Rank	レイサンマガモ	Prostrate false buttonweed
Kingdom	Animalia (動物)	Plantae (植物)
Phylum	Chordata (脊索動物)	Magnoliophyta (被子植物門)
Class	Aves (鳥類)	Magnoliopsida (モクレン綱)
Order	Anseriformes (カモ目)	Gentianales (リンドウ目)
Family	Anatidae	Rubiaceae
Genus	Anas	Spermacoce
Species	Anas laysanensis	Spermacoce prostrata

Conservation Status

レイサンマガモ

CR — Critically Endangered

Prostrate false buttonweed

NE — Not Evaluated

Physical Characteristics

Attribute	レイサンマガモ	Prostrate false buttonweed
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.

Prostrate false buttonweed

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Widely distributed across Asia (Japan, Timor-Leste), North America (Cuba, United States), and South America (Brazil, Colombia).

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。