Brook Floater vs 云雀

Alasmidonta varicosa compared with Alauda arvensis

Taxonomic Classification

Rank	Brook Floater	云雀
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	Alaudidae
Genus	Alasmidonta	Alauda
Species	Alasmidonta varicosa	Alauda arvensis

Evolutionary Relationship

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

查看 Kingdom: Animalia

Conservation Status

Brook Floater

VU — Vulnerable

云雀

VU — Vulnerable

Physical Characteristics

Attribute	Brook Floater	云雀
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.

云雀

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests spanning the Australasia and Oceanian realms.

Range

Widely distributed across Europe (5 countries), North America (Canada, United States), and Oceania and the Pacific (Australia, New Zealand). Currently classified as Vulnerable 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.

云雀

云雀（Alauda arvensis）以飞行中歌唱的复杂悦耳鸣声在欧洲文学和诗歌中广受赞誉。它们在欧洲和亚洲的开阔农田、草地和荒野上空垂直飞翔数百米，同时发出长达一小时的连续鸣唱。雄鸟可发出700多种独特的鸣唱短句。曾经在欧洲农田中极为丰富的云雀，由于农业集约化，自1970年以来种群数量已下降70%以上。