arctic threadwort vs Laysan Duck

Cephaloziella varians compared with Anas laysanensis

Key Differences

arctic threadwort is Least Concern while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	arctic threadwort	Laysan Duck
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Marchantiophyta (liverwort)	Chordata (Chordates)
Class	Jungermanniopsida (Jungermanniopsida)	Aves (Birds)
Order	Jungermanniales (Jungermanniales)	Anseriformes (Anseriformes)
Family	Cephaloziellaceae	Anatidae
Genus	Cephaloziella	Anas
Species	Cephaloziella varians	Anas laysanensis

Conservation Status

arctic threadwort

LC — Least Concern

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	arctic threadwort	Laysan Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

arctic threadwort

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway, Sweden, and United States.

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.

arctic threadwort

The Arctic threadwort (Cephaloziella varians) is a species in the genus Cephaloziella. It is currently classified as Least Concern on the IUCN Red List. Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Laysan Duck

Laysan Duck (Anas laysanensis) is classified as Critically Endangered (CR) on the IUCN Red List. Facing an extremely high risk of extinction in the wild due to severe population decline and habitat loss.