Brown Roll Rim vs Eurasian beaver

Paxillus involutus compared with Castor fiber

Key Differences

• Brown Roll Rim is Least Concern while Eurasian beaver is Vulnerable.

Taxonomic Classification

Rank	Brown Roll Rim	Eurasian beaver
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Chordata (Chordates)
Class	Agaricomycetes (Mushrooms)	Mammalia (Mammals)
Order	Boletales (Boletales)	Rodentia (Rodents)
Family	Paxillaceae	Castoridae (Beavers)
Genus	Paxillus	Castor (Beavers)
Species	Paxillus involutus	Castor fiber

Conservation Status

Brown Roll Rim

LC — Least Concern

Eurasian beaver

VU — Vulnerable

Physical Characteristics

Attribute	Brown Roll Rim	Eurasian beaver
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown Roll Rim

Habitat

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

Range

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

Eurasian beaver

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found across Europe (6 countries). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Brown Roll Rim

The Brown Roll Rim (Paxillus involutus) is a species in the genus Paxillus. It is currently classified as Least Concern on the IUCN Red List. Typically found in forest floors, decomposing wood, and soil ecosystems.

Eurasian beaver

Eurasian beaver (Castor fiber) is classified as Vulnerable (VU) on the IUCN Red List. Facing a high risk of endangerment in the wild, with declining populations and increasing habitat pressure.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden