Brook Floater vs European pine marten

Alasmidonta varicosa compared with Martes martes

Key Differences

• Brook Floater is Vulnerable while European pine marten is Critically Endangered.

Taxonomic Classification

Rank	Brook Floater	European pine marten
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)	Mammalia (哺乳動物)
Order	Unionida (蚌目)	Carnivora (食肉目)
Family	Unionidae	Mustelidae (Weasels & Otters)
Genus	Alasmidonta	Martes
Species	Alasmidonta varicosa	Martes martes

Evolutionary Relationship

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

Conservation Status

Brook Floater

VU — Vulnerable

European pine marten

CR — Critically Endangered

Physical Characteristics

Attribute	Brook Floater	European pine marten
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.

European pine marten

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (6 countries). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

European pine marten

欧洲松貂（Martes martes）在IUCN红色名录中被列为极危（CR）物种。由于种群数量严重下降和栖息地丧失，在野外面临极高的灭绝风险。