Polar bear vs

Ursus maritimus compared with Psammothidium lacus-vulcani

Key Differences

  • Polar bear is Vulnerable while is Not Evaluated.

Taxonomic Classification

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

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 Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across 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。

Psammothidium lacus-vulcaniはAchnanthidiaceae科に属する小型底生珪藻で、火山湖生息地から記載された。縫線系と珪酸殻の構造はPsammothidium属の特徴である。

Shared Countries

Both species can be found in 1 countries:

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