Canadian beaver vs Post Dwarf Weaver

Castor canadensis compared with Erigone atra

Key Differences

• Canadian beaver is Not Evaluated while Post Dwarf Weaver is Least Concern.

Taxonomic Classification

Rank	Canadian beaver	Post Dwarf Weaver
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Arachnida (Arachnids)
Order	Rodentia (Rodents)	Araneae (Araneae)
Family	Castoridae (Beavers)	Linyphiidae
Genus	Castor (Beavers)	Erigone
Species	Castor canadensis	Erigone atra

Evolutionary Relationship

Canadian beaver and Post Dwarf Weaver share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Post Dwarf Weaver

LC — Least Concern

Physical Characteristics

Attribute	Canadian beaver	Post Dwarf Weaver
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).

Post Dwarf Weaver

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Widely distributed across Europe (4 countries), North America (Canada, United States), and South America (Ecuador).

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 4 countries:

🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden 🇺🇸 United States