Brook Floater vs field vole

Alasmidonta varicosa compared with Microtus agrestis

Key Differences

• Brook Floater is Vulnerable while field vole is Near Threatened.

Taxonomic Classification

Rank	Brook Floater	field vole
Kingdom same	Animalia (حيوانات)	Animalia (حيوانات)
Phylum	Mollusca (رخويات)	Chordata (حبليات)
Class	Bivalvia (ذوات الصدفتين)	Mammalia (ثدييات)
Order	Unionida (محاريات نهرية)	Rodentia (قوارض)
Family	Unionidae	Cricetidae
Genus	Alasmidonta	Microtus
Species	Alasmidonta varicosa	Microtus agrestis

Evolutionary Relationship

Brook Floater and field vole share a common ancestor at the Kingdom level: Animalia. (حيوانات)

Conservation Status

Brook Floater

VU — Vulnerable

field vole

NT — Near Threatened

Physical Characteristics

Attribute	Brook Floater	field vole
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brook Floater

Habitat

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

Range

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

field 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.

Brook Floater

The Brook Floater (Alasmidonta varicosa) is a species in the genus Alasmidonta. It is currently classified as Vulnerable on the IUCN Red List. Native to North America, inhabiting ecosystems characteristic of the region.

field vole

field vole (Microtus agrestis) is classified as Near Threatened (NT) on the IUCN Red List. Close to qualifying as threatened, with populations that may become vulnerable without conservation action.