Brook Floater vs アメリカホシハジロ

Alasmidonta varicosa compared with Aythya americana

Key Differences

• Brook Floater is Vulnerable while アメリカホシハジロ is Not Evaluated.

Taxonomic Classification

Rank	Brook Floater	アメリカホシハジロ
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Mollusca (軟体動物)	Chordata (脊索動物)
Class	Bivalvia (二枚貝)	Aves (鳥類)
Order	Unionida (イシガイ目)	Anseriformes (カモ目)
Family	Unionidae	Anatidae
Genus	Alasmidonta	Aythya
Species	Alasmidonta varicosa	Aythya americana

Evolutionary Relationship

Brook Floater and アメリカホシハジロ share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

Brook Floater

VU — Vulnerable

アメリカホシハジロ

NE — Not Evaluated

Physical Characteristics

Attribute	Brook Floater	アメリカホシハジロ
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.

アメリカホシハジロ

Habitat

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

Range

Found across Europe (7 countries) and North America (United States).

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.

アメリカホシハジロ

アカアタマハジロ（Aythya americana）はIUCNレッドリストで未評価（NE）に分類されている。IUCNレッドリスト基準でまだ評価されておらず、保全状況は未確定である。

Shared Countries

Both species can be found in 1 countries:

🇺🇸 United States