Laysan Duck vs

Anas laysanensis compared with Nitzschia flexa

Key Differences

Laysan Duck is Critically Endangered while is Not Evaluated.

Taxonomic Classification

Rank	Laysan Duck
Kingdom	Animalia (Animals)	Chromista (Chromista)
Phylum	Chordata (Chordates)	Ochrophyta (Ochrophyta)
Class	Aves (Birds)	Bacillariophyceae (Bacillariophyceae)
Order	Anseriformes (Anseriformes)	Bacillariales (Bacillariales)
Family	Anatidae	Bacillariaceae
Genus	Anas	Nitzschia
Species	Anas laysanensis	Nitzschia flexa

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 Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

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.

Nitzschia flexa is a pennate diatom (class Bacillariophyceae) with a characteristically curved or bent raphe system that gives the genus its distinctive appearance. It inhabits freshwater to brackish environments and contributes to benthic and planktonic algal communities. As a photosynthetic microalga, it plays a foundational role in aquatic food webs and primary production.