Laysan Duck vs Threeleaf Halberd Fern

Anas laysanensis compared with Tectaria trifoliata

Key Differences

• Laysan Duck is Critically Endangered while Threeleaf Halberd Fern is Near Threatened.

Taxonomic Classification

Rank	Laysan Duck	Threeleaf Halberd Fern
Kingdom	Animalia (동물)	Plantae (식물)
Phylum	Chordata (척삭동물)	Tracheophyta
Class	Aves (새)	Polypodiopsida (고사리강)
Order	Anseriformes (기러기목)	Polypodiales (고사리목)
Family	Anatidae	Tectariaceae
Genus	Anas	Tectaria
Species	Anas laysanensis	Tectaria trifoliata

Conservation Status

Laysan Duck

CR — Critically Endangered

Threeleaf Halberd Fern

NT — Near Threatened

Physical Characteristics

Attribute	Laysan Duck	Threeleaf Halberd Fern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Laysan Duck

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.

Threeleaf Halberd Fern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Range

Distributed across Brazil, Colombia, and Cuba. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Laysan Duck

레이산 오리(Anas laysanensis)는 IUCN 적색목록에서 위급(CR) 등급으로 분류됩니다. 심각한 개체수 감소와 서식지 손실로 인해 야생에서 절멸할 위험이 매우 높은 종입니다.