Birch Polypore vs Canadian beaver

Fomitopsis betulina compared with Castor canadensis

Key Differences

Birch Polypore is Least Concern while Canadian beaver is Not Evaluated.

Taxonomic Classification

Rank	Birch Polypore	Canadian beaver
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Chordata (Chordates)
Class	Agaricomycetes (Mushrooms)	Mammalia (Mammals)
Order	Polyporales (Polyporales)	Rodentia (Rodents)
Family	Fomitopsidaceae	Castoridae (Beavers)
Genus	Fomitopsis	Castor (Beavers)
Species	Fomitopsis betulina	Castor canadensis

Conservation Status

Birch Polypore

LC — Least Concern

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Physical Characteristics

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

Habitat & Geographic Range

Birch Polypore

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Denmark and United States.

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).

Birch Polypore

The Birch Polypore (Fomitopsis betulina) is a species in the genus Fomitopsis. It is currently classified as Least Concern on the IUCN Red List. Typically found in forest floors, decomposing wood, and soil ecosystems.

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.