vs Polar bear

Clitopilus scyphoides compared with Ursus maritimus

Key Differences

is Data Deficient while Polar bear is Vulnerable.

Taxonomic Classification

Rank		Polar bear
Kingdom	Fungi (菌界)	Animalia (動物)
Phylum	Basidiomycota (担子菌門)	Chordata (脊索動物)
Class	Agaricomycetes (真正担子菌綱)	Mammalia (哺乳類)
Order	Agaricales (ハラタケ目)	Carnivora (ネコ目)
Family	Entolomataceae	Ursidae (Bears)
Genus	Clitopilus	Ursus (Bears)
Species	Clitopilus scyphoides	Ursus maritimus

Conservation Status

DD — Data Deficient

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute		Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Habitat

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

Range

Widely distributed across Europe (4 countries), North America (United States), and South America (Brazil).

Polar bear

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.

Clitopilus scyphoides is an agaric fungus in the family Entolomataceae found in temperate European woodlands and grassland habitats. The species epithet scyphoides refers to a cup- or goblet-like form ('scyphus' meaning cup in Latin), likely describing the mature cap shape which becomes deeply depressed to funnel-shaped at maturity. Like other Clitopilus species, it produces white to pale cap surfaces, crowded decurrent gills that develop a pinkish tinge from the angular spores as they mature, and typically exhibits a mealy or farinaceous odor. It fruits in autumn in woodland clearings, beech and oak woodland floors, and occasionally in grassy habitats. The Clitopilus genus contains around a dozen recognized European species, some of which resemble the edible sweetbread mushroom C. prunulus. Molecular and morphological studies continue to clarify species boundaries and relationships within the genus. C. scyphoides contributes to the decomposer fungal community in its habitats, processing leaf litter and soil organic matter within temperate European forest and grassland ecosystems.

Polar bear

地球上で最大の陸上肉食動物であるホッキョクグマは700kgを超えることがあり、カナダからロシアまでの北極海氷域全体に分布する。ワモンアザラシとヒゲアザラシを狩るために海氷に依存する高度に特化した海洋哺乳類である。広大な距離を泳ぐことができる優れた泳者でもある。脆弱種に指定されており、気候変動による急激な北極海氷の消失で個体群が深刻な圧力を受けている。