brown bear vs California alder

Ursus arctos compared with Alnus rhombifolia

Key Differences

• brown bear is Extinct while California alder is Least Concern.

Taxonomic Classification

Rank	brown bear	California alder
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Magnoliopsida (Dicots)
Order	Carnivora (Carnivorans)	Fagales (Beeches & Oaks)
Family	Ursidae (Bears)	Betulaceae
Genus	Ursus (Bears)	Alnus
Species	Ursus arctos	Alnus rhombifolia

Conservation Status

brown bear

EX — Extinct

Population: ~200.0K

Trend: Stable →

California alder

LC — Least Concern

Physical Characteristics

Attribute	brown bear	California alder
Diet	Omnivore	—
Average Lifespan	25 years	—
Average Length	2.0 m	—
Average Weight	300.0 kg	—

Habitat & Geographic Range

brown bear

Habitat

Typically found in a wide range of habitat types.

Range

Found across Europe (6 countries).

California alder

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Found in Canada.

brown bear

The world's most widely distributed bear species, brown bears range from North America and Europe across Russia to Japan, occupying forests, tundra, and alpine meadows. Adults can weigh up to 700 kg in coastal Alaskan populations. Omnivores that consume berries, roots, fish, and carrion, brown bears are a keystone species that distribute nutrients across landscapes. Most populations are stable, though some subspecies are threatened.

California alder

The California alder (Alnus rhombifolia) is a species in the genus Alnus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.