dwarf bristle moss vs Laysan Duck

Orthotrichum pumilum compared with Anas laysanensis

Key Differences

• dwarf bristle moss is Data Deficient while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	dwarf bristle moss	Laysan Duck
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Bryophyta	Chordata (Chordates)
Class	Bryopsida (Bryopsida)	Aves (Birds)
Order	Orthotrichales (Orthotrichales)	Anseriformes (Anseriformes)
Family	Orthotrichaceae	Anatidae
Genus	Orthotrichum	Anas
Species	Orthotrichum pumilum	Anas laysanensis

Conservation Status

dwarf bristle moss

DD — Data Deficient

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	dwarf bristle moss	Laysan Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

dwarf bristle moss

Habitat

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

Range

Distributed across Denmark, Luxembourg, 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.

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.