Alder Rollrim vs Oso Polar

Paxillus rubicundulus compared with Ursus maritimus

Key Differences

Alder Rollrim is Not Evaluated while Oso Polar is Vulnerable.

Taxonomic Classification

Rank	Alder Rollrim	Oso Polar
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Chordata (cordados)
Class	Agaricomycetes (Mushrooms)	Mammalia (mamíferos)
Order	Boletales (Boletales)	Carnivora (carnívoros)
Family	Paxillaceae	Ursidae (Bears)
Genus	Paxillus	Ursus (Bears)
Species	Paxillus rubicundulus	Ursus maritimus

Conservation Status

Alder Rollrim

NE — Not Evaluated

Oso Polar

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Alder Rollrim	Oso Polar
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Alder Rollrim

Habitat

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

Range

Distributed across Norway and Sweden.

Oso Polar

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.

Alder Rollrim

The Alder Rollrim (Paxillus rubicundulus) is a species in the genus Paxillus. Typically found in forest floors, decomposing wood, and soil ecosystems.

Oso Polar

El mayor carnivoro terrestre de la Tierra, el oso polar puede superar los 700 kg y se encuentra en el hielo marino del Artico, desde Canada hasta Rusia. Es un mamifero marino altamente especializado que depende del hielo marino para cazar focas anilladas y barbadas. Excelente nadador capaz de cubrir grandes distancias en agua abierta. Clasificado como Vulnerable, sus poblaciones soportan una presion severa por la rapida perdida de hielo marino artico debida al cambio climatico.