Polar bear vs

Ursus maritimus compared with Viridibacillus arenosi

Key Differences

  • Polar bear is Vulnerable while is Not Evaluated.

Taxonomic Classification

Rank Polar bear
Kingdom Animalia (動物) Bacteria (Bacteria)
Phylum Chordata (脊索動物) Firmicutes (フィルミクテス門)
Class Mammalia (哺乳類) Bacilli (バシラス綱)
Order Carnivora (ネコ目) Bacillales_A
Family Ursidae (Bears) Planococcaceae
Genus Ursus (Bears) Viridibacillus
Species Ursus maritimus Viridibacillus arenosi

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

NE — Not Evaluated

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 Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan.

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。

Viridibacillus arenisosiは種名が示す通り砂質土壌から分離された芽胞形成細菌です。特徴的な楕円形の内生胞子を形成し、比較的栄養分の少ない砂質基質でも生育できる能力で区別されます。この好気性化学有機栄養菌は砂質陸上環境での有機物分解において役割を果たします。

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