arran brown vs Canadian beaver

Erebia ligea compared with Castor canadensis

Key Differences

• arran brown is Least Concern while Canadian beaver is Not Evaluated.

Taxonomic Classification

Rank	arran brown	Canadian beaver
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Lepidoptera (Butterflies & Moths)	Rodentia (Rodents)
Family	Nymphalidae (Brush-footed Butterflies)	Castoridae (Beavers)
Genus	Erebia	Castor (Beavers)
Species	Erebia ligea	Castor canadensis

Evolutionary Relationship

arran brown and Canadian beaver share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

arran brown

LC — Least Concern

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Physical Characteristics

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

Habitat & Geographic Range

arran brown

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (33 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).

arran brown

arran brown (Erebia ligea) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

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.

Shared Countries

Both species can be found in 13 countries:

🇦🇹 Austria 🇧🇪 Belgium 🇫🇮 Finland 🇫🇷 France 🇩🇪 Germany 🇭🇺 Hungary 🇳🇱 Netherlands 🇳🇴 Norway 🇵🇱 Poland 🇷🇺 Russia 🇸🇪 Sweden 🇺🇦 Ukraine 🇬🇧 United Kingdom