vs Polar bear

Eunotia bactriana compared with Ursus maritimus

Key Differences

  • is Not Evaluated while Polar bear is Vulnerable.

Taxonomic Classification

Rank Polar bear
Kingdom Chromista (クロミスタ) Animalia (動物)
Phylum Ochrophyta (オクロ植物) Chordata (脊索動物)
Class Bacillariophyceae (クサリケイソウ綱) Mammalia (哺乳類)
Order Eunotiales (Eunotiales) Carnivora (ネコ目)
Family Eunotiaceae Ursidae (Bears)
Genus Eunotia Ursus (Bears)
Species Eunotia bactriana Ursus maritimus

Conservation Status

NE — Not Evaluated

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

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

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.

Eunotia bactrianasEunotiaceae科の淡水珪藻で、属特有の細かい横断面縞模様を持つ独特に湾曲した殻を特徴とします。貧栄養酸性淡水環境のコケ、堆積物、水中植物表面に付着して育ちます。他のEunotia種と同様に水系のpHと栄養状態を示す生物指標として機能します。

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。

Shared Countries

Both species can be found in 1 countries:

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