Brook Floater vs Red-Throated Diver

Alasmidonta varicosa compared with Gavia stellata

Key Differences

• Brook Floater is Vulnerable while Red-Throated Diver is Near Threatened.

Taxonomic Classification

Rank	Brook Floater	Red-Throated Diver
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Bivalvia (Bivalvia)	Aves (Birds)
Order	Unionida (Unionida)	Gaviiformes (Gaviiformes)
Family	Unionidae	Gaviidae
Genus	Alasmidonta	Gavia
Species	Alasmidonta varicosa	Gavia stellata

Evolutionary Relationship

Brook Floater and Red-Throated Diver share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

Red-Throated Diver

NT — Near Threatened

Physical Characteristics

Attribute	Brook Floater	Red-Throated Diver
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.

Red-Throated Diver

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (5 countries) and North America (United States). 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.

Red-Throated Diver

Red-Throated Diver (Gavia stellata) 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.

Shared Countries

Both species can be found in 1 countries:

🇺🇸 United States