Elm leafminer vs Eurasian beaver

Fenusa ulmi compared with Castor fiber

Key Differences

• Elm leafminer is Near Threatened while Eurasian beaver is Vulnerable.

Taxonomic Classification

Rank	Elm leafminer	Eurasian beaver
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Hymenoptera (Ants, Bees & Wasps)	Rodentia (Rodents)
Family	Tenthredinidae	Castoridae (Beavers)
Genus	Fenusa	Castor (Beavers)
Species	Fenusa ulmi	Castor fiber

Evolutionary Relationship

Elm leafminer and Eurasian beaver share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Elm leafminer

NT — Near Threatened

Eurasian beaver

VU — Vulnerable

Physical Characteristics

Attribute	Elm leafminer	Eurasian beaver
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Elm leafminer

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Canada, Denmark, Norway, Sweden, and United States. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

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 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden