vs Laysan Duck

Ensifer arboris compared with Anas laysanensis

Key Differences

• is Not Evaluated while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank		Laysan Duck
Kingdom	Bacteria (Bacteria)	Animalia (Animals)
Phylum	Proteobacteria (Proteobacteria)	Chordata (Chordates)
Class	Alphaproteobacteria (Alphaproteobacteria)	Aves (Birds)
Order	Rhizobiales (Rhizobiales)	Anseriformes (Anseriformes)
Family	Rhizobiaceae	Anatidae
Genus	Ensifer	Anas
Species	Ensifer arboris	Anas laysanensis

Conservation Status

NE — Not Evaluated

Laysan Duck

CR — Critically Endangered

Physical Characteristics

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

Habitat & Geographic Range

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan.

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.

Ensifer arboris is a Gram-negative, nitrogen-fixing bacterium forming effective root nodules on leguminous trees in arid and semi-arid regions of Africa and Asia. It inhabits the rhizosphere and root nodules of Prosopis and other acacia-like leguminous trees in tropical and subtropical environments. This bacterium converts atmospheric nitrogen into biologically available ammonia for its host trees.

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.