Braunknolliger Zwergrübling vs Eisbär

Collybia tuberosa compared with Ursus maritimus

Key Differences

• Braunknolliger Zwergrübling is Least Concern while Eisbär is Vulnerable.

Taxonomic Classification

Rank	Braunknolliger Zwergrübling	Eisbär
Kingdom	Fungi (Pilze)	Animalia (Tier)
Phylum	Basidiomycota (Ständerpilze)	Chordata (Chordatiere)
Class	Agaricomycetes (Mushrooms)	Mammalia (Säugetiere)
Order	Agaricales (Champignonartige)	Carnivora (Raubtiere)
Family	Tricholomataceae	Ursidae (Bears)
Genus	Collybia	Ursus (Bears)
Species	Collybia tuberosa	Ursus maritimus

Conservation Status

Braunknolliger Zwergrübling

LC — Least Concern

Eisbär

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Braunknolliger Zwergrübling	Eisbär
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Braunknolliger Zwergrübling

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and North America (United States).

Eisbär

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.

Eisbär

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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway