Laysan Duck vs

Anas laysanensis compared with Sphingobium limneticum

Key Differences

• Laysan Duck is Critically Endangered while is Not Evaluated.

Taxonomic Classification

Rank	Laysan Duck
Kingdom	Animalia (Animals)	Bacteria (Bacteria)
Phylum	Chordata (Chordates)	Proteobacteria (Proteobacteria)
Class	Aves (Birds)	Alphaproteobacteria (Alphaproteobacteria)
Order	Anseriformes (Anseriformes)	Sphingomonadales (Sphingomonadales)
Family	Anatidae	Sphingomonadaceae
Genus	Anas	Sphingobium
Species	Anas laysanensis	Sphingobium limneticum

Conservation Status

Laysan Duck

CR — Critically Endangered

NE — Not Evaluated

Physical Characteristics

Attribute	Laysan Duck
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.

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan.

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.

Sphingobium limneticum is a Gram-negative aerobic rod first isolated from lake water environments, as its species name implies. It inhabits freshwater lakes and ponds across temperate regions. This chemoheterotroph decomposes dissolved organic matter in lacustrine environments and may degrade aromatic compounds.