Ecuadorian Cotton Rat vs European water vole

Sigmodon inopinatus compared with Arvicola amphibius

Key Differences

• Ecuadorian Cotton Rat is Vulnerable while European water vole is Near Threatened.

Taxonomic Classification

Rank	Ecuadorian Cotton Rat	European water vole
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Mammalia (哺乳類)	Mammalia (哺乳類)
Order same	Rodentia (ネズミ目)	Rodentia (ネズミ目)
Family same	Cricetidae	Cricetidae
Genus	Sigmodon	Arvicola
Species	Sigmodon inopinatus	Arvicola amphibius

Evolutionary Relationship

Ecuadorian Cotton Rat and European water vole share a common ancestor at the Family level: Cricetidae.

Conservation Status

Ecuadorian Cotton Rat

VU — Vulnerable

European water vole

NT — Near Threatened

Physical Characteristics

Attribute	Ecuadorian Cotton Rat	European water vole
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Ecuadorian Cotton Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

European water vole

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Belgium, Denmark, Norway, Russia, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.