Bark louse vs Laysan Duck

Elipsocus pumilis compared with Anas laysanensis

Key Differences

• Bark louse is Not Evaluated while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	Bark louse	Laysan Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Aves (Birds)
Order	Psocodea (Psocodea)	Anseriformes (Anseriformes)
Family	Elipsocidae	Anatidae
Genus	Elipsocus	Anas
Species	Elipsocus pumilis	Anas laysanensis

Evolutionary Relationship

Bark louse and Laysan Duck share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Bark louse

NE — Not Evaluated

Laysan Duck

CR — Critically Endangered

Physical Characteristics

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

Habitat & Geographic Range

Bark louse

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, 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.

Bark louse

The Bark louse (Elipsocus pumilis) is a species in the genus Elipsocus. Typically found in virtually all terrestrial and freshwater habitats.

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.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇳🇴 Norway