vs Polar bear
Micarea lithinella 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 | Ascomycota (子嚢菌門) | Chordata (脊索動物) |
| Class | Lecanoromycetes (チャシブゴケ菌綱) | Mammalia (哺乳類) |
| Order | Lecanorales (チャシブゴケ目) | Carnivora (ネコ目) |
| Family | Byssolomataceae | Ursidae (Bears) |
| Genus | Micarea | Ursus (Bears) |
| Species | Micarea lithinella | Ursus maritimus |
Conservation Status
Polar bear
VU — VulnerablePopulation: ~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
Native to Europe, inhabiting ecosystems characteristic of the region.
Distributed across Denmark, Norway, and Sweden.
Polar bear
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.
Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.
Micarea lithinella は岩石表面に微小な子器を形成する淡色の顆粒状地衣体を持つ小型の痂状地衣類である。ヨーロッパ全域の冷温帯および亜高山帯環境の珪質岩面と石垣に生息する。この地衣類は裸の酸性岩石表面や風化した鉱物基質へのコロニー形成を行う。
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。
Related Comparisons
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