Polar bear vs

Ursus maritimus compared with Sclerotinia borealis

Key Differences

  • Polar bear is Vulnerable while is Least Concern.

Taxonomic Classification

Rank Polar bear
Kingdom Animalia (動物) Fungi (菌界)
Phylum Chordata (脊索動物) Ascomycota (子嚢菌門)
Class Mammalia (哺乳類) Leotiomycetes (Leotiomycetes)
Order Carnivora (ネコ目) Helotiales (Helotiales)
Family Ursidae (Bears) Sclerotiniaceae
Genus Ursus (Bears) Sclerotinia
Species Ursus maritimus Sclerotinia borealis

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

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.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

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。

Sclerotinia borealisはSclerotiniaceae科の菌類病原体で、寒冷気候下の草類や小規模な穀物に雪腐病を引き起こします。永続した積雪の下の氷点直上の気温で発育し、季節間に土壌中に残存する特徴的な黒い菌核を形成します。保全評価者により軽度懸念と評価されています。

Shared Countries

Both species can be found in 1 countries:

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