Brook Floater vs 八哥

Alasmidonta varicosa compared with Acridotheres cristatellus

Key Differences

• Brook Floater is Vulnerable while 八哥 is Least Concern.

Taxonomic Classification

Rank	Brook Floater	八哥
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Mollusca (软体动物门)	Chordata (脊索动物门)
Class	Bivalvia (双壳纲)	Aves (鳥綱)
Order	Unionida (蚌目)	Passeriformes (雀形目)
Family	Unionidae	Sturnidae
Genus	Alasmidonta	Acridotheres
Species	Alasmidonta varicosa	Acridotheres cristatellus

Evolutionary Relationship

Brook Floater and 八哥 share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

Brook Floater

VU — Vulnerable

八哥

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	八哥
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.

八哥

Habitat

Inhabits tropical and subtropical dry broadleaf forests and tropical and subtropical grasslands and savannas within the Neotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Japan, Singapore, United Arab Emirates), Europe (7 countries), and South America (Argentina, Bolivia).

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.

八哥

凤头八哥（Acridotheres cristatellus）在IUCN红色名录中被列为无危（LC）物种。在其分布范围内广泛且数量丰富，种群稳定，无即时保育关切。