Altai Birch Mouse vs pato-de-laysan

Sicista napaea compared with Anas laysanensis

Key Differences

• Altai Birch Mouse is Least Concern while pato-de-laysan is Critically Endangered.

Taxonomic Classification

Rank	Altai Birch Mouse	pato-de-laysan
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Mammalia (mamíferos)	Aves (ave)
Order	Rodentia (Roedores)	Anseriformes (Anseriformes)
Family	Dipodidae	Anatidae
Genus	Sicista	Anas
Species	Sicista napaea	Anas laysanensis

Evolutionary Relationship

Altai Birch Mouse and pato-de-laysan share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

Altai Birch Mouse

LC — Least Concern

pato-de-laysan

CR — Critically Endangered

Physical Characteristics

Attribute	Altai Birch Mouse	pato-de-laysan
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Altai Birch Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

pato-de-laysan

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.

Altai Birch Mouse

The Altai Birch Mouse (Sicista napaea) is a species in the genus Sicista. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

pato-de-laysan

O Pato-de-Laysan (Anas laysanensis) está classificado como Criticamente Ameaçado (CR) na Lista Vermelha da IUCN. Enfrenta um risco extremamente alto de extinção na natureza devido ao grave declínio populacional e à perda de habitat.