Arctic dwarf birch vs Canadian beaver

Betula nana compared with Castor canadensis

Key Differences

Arctic dwarf birch is Least Concern while Canadian beaver is Not Evaluated.

Taxonomic Classification

Rank	Arctic dwarf birch	Canadian beaver
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Mammalia (Mammals)
Order	Fagales (Beeches & Oaks)	Rodentia (Rodents)
Family	Betulaceae	Castoridae (Beavers)
Genus	Betula	Castor (Beavers)
Species	Betula nana	Castor canadensis

Conservation Status

Arctic dwarf birch

LC — Least Concern

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Physical Characteristics

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

Habitat & Geographic Range

Arctic dwarf birch

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Found across Europe (8 countries).

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).

Arctic dwarf birch

The Arctic dwarf birch (Betula nana) is a species in the genus Betula. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Canadian beaver

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.