Canadian beaver vs

Castor canadensis compared with Chrysococcus minutus

Taxonomic Classification

Rank	Canadian beaver
Kingdom	Animalia (동물)	Chromista (크로미스타)
Phylum	Chordata (척삭동물)	Ochrophyta (대롱편모조식물)
Class	Mammalia (포유류)	Chrysophyceae (황조류)
Order	Rodentia (설치류)	Chromulinales (크로물리나목)
Family	Castoridae (Beavers)	Dinobryaceae
Genus	Castor (Beavers)	Chrysococcus
Species	Castor canadensis	Chrysococcus minutus

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

NE — Not Evaluated

Physical Characteristics

Attribute	Canadian beaver
Diet	Herbivore	—
Average Lifespan	15 years	—
Average Length	1.0 m	—
Average Weight	25.0 kg	—

Habitat & Geographic Range

Canadian beaver

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Widely distributed across Europe (15 countries), North America (United States), and South America (Argentina, Chile).

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Canadian beaver

북아메리카에서 가장 큰 설치류인 캐나다비버는 체중이 최대 32kg에 달하며 캐나다 및 미국 북부의 강, 호수, 습지에 서식하는 생태계 공학자의 대가입니다. 나무를 베고 수백 미터에 달하는 댐을 건설하여 수백 종에게 서식지를 제공하는 연못을 만들어냅니다. 이들의 보금자리와 수로는 유역 전체를 변화시킵니다. 한때 모피를 위한 남획으로 거의 멸종 위기에 처했으나, 비버 개체군은 강하게 회복되었습니다.

Chrysococcus minutus is a small loricate chrysophyte alga in the genus Chrysococcus, its epithet minutus (Latin: minute or very small) reflecting its diminutive cell dimensions. Like its congeners, the cell is enclosed within a lorica — a rigid, often silicified or organic housing with an apical pore through which the flagellum protrudes. The lorica shape and dimensions provide taxonomic characters for species differentiation within the genus. C. minutus inhabits freshwater environments, including oligotrophic lakes, bog pools, and slow-moving waters in temperate and subarctic regions. Chrysophytes thrive in cold, acidic, low-nutrient waters and serve as reliable bioindicators of water quality. The small cell size of C. minutus places it within the nanoplankton size class, making it an important prey item for heterotrophic nanoflagellates and small ciliates in the freshwater microbial food web. Some Chrysococcus species supplement photosynthesis with bacterivorous feeding. The species has not been evaluated for conservation status and is listed as Not Evaluated by the IUCN. Loricated chrysophytes like C. minutus leave fossil siliceous cysts (stomatocysts) in lake sediments, which are widely used in paleoecological reconstructions.