Castor canadien vs Dwarf Eelgrass

Castor canadensis compared with Zostera noltii

Key Differences

• Castor canadien is Not Evaluated while Dwarf Eelgrass is Endangered.

Taxonomic Classification

Rank	Castor canadien	Dwarf Eelgrass
Kingdom	Animalia (animal)	Plantae (plante)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (mammifères)	Liliopsida (Monocots)
Order	Rodentia (Rodents)	Alismatales (Alismatales)
Family	Castoridae (Beavers)	Zosteraceae
Genus	Castor (Beavers)	Zostera
Species	Castor canadensis	Zostera noltii

Conservation Status

Castor canadien

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Dwarf Eelgrass

EN — Endangered

Physical Characteristics

Attribute	Castor canadien	Dwarf Eelgrass
Diet	Herbivore	—
Average Lifespan	15 years	—
Average Length	1.0 m	—
Average Weight	25.0 kg	—

Habitat & Geographic Range

Castor canadien

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).

Dwarf Eelgrass

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Distributed across Belgium, Denmark, Norway, Portugal, and Sweden. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Castor canadien

The largest rodent in North America, Canadian beavers weigh up to 32 kg and are master ecosystem engineers inhabiting rivers, lakes, and wetlands across Canada and the northern United States. By felling trees and constructing dams up to hundreds of meters long, beavers create ponds that provide habitat for hundreds of species. Their lodges and canals transform entire watersheds. Once nearly hunted to extinction for their fur, beaver populations have recovered strongly.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden