Ánade de Laysán vs tiny risso snail

Anas laysanensis compared with Rissoa parva

Key Differences

• Ánade de Laysán is Critically Endangered while tiny risso snail is Least Concern.

Taxonomic Classification

Rank	Ánade de Laysán	tiny risso snail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (cordados)	Mollusca (moluscos)
Class	Aves (Birds)	Gastropoda (gastrópodos)
Order	Anseriformes (Anseriformes)	Littorinimorpha (Littorinimorpha)
Family	Anatidae	Rissoidae
Genus	Anas	Rissoa
Species	Anas laysanensis	Rissoa parva

Evolutionary Relationship

Ánade de Laysán and tiny risso snail share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Ánade de Laysán

CR — Critically Endangered

tiny risso snail

LC — Least Concern

Physical Characteristics

Attribute	Ánade de Laysán	tiny risso snail
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Ánade de Laysán

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.

tiny risso snail

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Ánade de Laysán

El Pato de Laysan (Anas laysanensis) está clasificado como En Peligro Crítico (CR) en la Lista Roja de la UICN. Enfrenta un riesgo extremadamente alto de extinción en estado silvestre debido a la grave disminución de su población y la pérdida de hábitat.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇳🇴 Norway