Laysan Duck vs Star Rosette Lichen

Anas laysanensis compared with Physcia stellaris

Key Differences

Laysan Duck is Critically Endangered while Star Rosette Lichen is Endangered.

Taxonomic Classification

Rank	Laysan Duck	Star Rosette Lichen
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Aves (Birds)	Lecanoromycetes (Lecanoromycetes)
Order	Anseriformes (Anseriformes)	Caliciales (Caliciales)
Family	Anatidae	Physciaceae
Genus	Anas	Physcia
Species	Anas laysanensis	Physcia stellaris

Conservation Status

Laysan Duck

CR — Critically Endangered

Star Rosette Lichen

EN — Endangered

Physical Characteristics

Attribute	Laysan Duck	Star Rosette Lichen
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.

Star Rosette Lichen

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, Portugal, Sweden, and United States. Currently classified as 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.