ours blanc vs bouleau de Winter

Ursus maritimus compared with Betula winteri

Key Differences

• ours blanc is Vulnerable while bouleau de Winter is Not Evaluated.

Taxonomic Classification

Rank	ours blanc	bouleau de Winter
Kingdom	Animalia (animal)	Plantae (plante)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (mammifères)	Magnoliopsida (Dicots)
Order	Carnivora (carnivores)	Fagales (Beeches & Oaks)
Family	Ursidae (Bears)	Betulaceae
Genus	Ursus (Bears)	Betula
Species	Ursus maritimus	Betula winteri

Conservation Status

ours blanc

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

bouleau de Winter

NE — Not Evaluated

Physical Characteristics

Attribute	ours blanc	bouleau de Winter
Diet	Carnivore	—
Average Lifespan	25 years	—
Average Length	2.4 m	—
Average Weight	450.0 kg	—

Habitat & Geographic Range

ours blanc

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

bouleau de Winter

Habitat

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

Range

Found in Canada.

ours blanc

The largest land carnivore on Earth, polar bears can exceed 700 kg and are found across Arctic sea ice from Canada to Russia. Highly specialized marine mammals that rely on sea ice to hunt ringed and bearded seals. Excellent swimmers capable of covering vast distances in open water. Listed as Vulnerable, with populations under severe pressure from rapid Arctic sea ice loss due to climate change.