Fern scale vs Laysan Duck

Pinnaspis aspidistrae compared with Anas laysanensis

Key Differences

• Fern scale is Not Evaluated while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	Fern scale	Laysan Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Aves (Birds)
Order	Hemiptera (Hemiptera)	Anseriformes (Anseriformes)
Family	Diaspididae	Anatidae
Genus	Pinnaspis	Anas
Species	Pinnaspis aspidistrae	Anas laysanensis

Evolutionary Relationship

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

Conservation Status

Fern scale

NE — Not Evaluated

Laysan Duck

CR — Critically Endangered

Physical Characteristics

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

Habitat & Geographic Range

Fern scale

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (21 countries) and North America (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.

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 5 countries:

🇧🇪 Belgium 🇫🇷 France 🇳🇱 Netherlands 🇳🇴 Norway 🇬🇧 United Kingdom