Brook Floater vs

Alasmidonta varicosa compared with Usnea cornuta

Key Differences

• Brook Floater is Vulnerable while is Near Threatened.

Taxonomic Classification

Rank	Brook Floater
Kingdom	Animalia (동물)	Fungi (균계)
Phylum	Mollusca (연체동물)	Ascomycota (자낭균류)
Class	Bivalvia (이매패류)	Lecanoromycetes (요강버섯강)
Order	Unionida (석패목)	Lecanorales (레카노라목)
Family	Unionidae	Parmeliaceae
Genus	Alasmidonta	Usnea
Species	Alasmidonta varicosa	Usnea cornuta

Conservation Status

Brook Floater

VU — Vulnerable

NT — Near Threatened

Physical Characteristics

Attribute	Brook Floater
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.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway, Portugal, 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.

Usnea cornuta는 Parmeliaceae과에 속하는 수지형 지의류로, 준위협(NT)으로 평가됩니다. 나뭇가지와 잔가지에 매달리는 덤불 모양의 엽상체를 형성하며, 주로 습한 산림 환경에서 서식합니다. 모든 Usnea 속 종과 마찬가지로 대기 오염, 특히 이산화황에 매우 민감하여 대기 질의 유용한 생물 지표종으로 활용됩니다.