vs Polar bear
Methanospirillum lacunae compared with Ursus maritimus
Key Differences
- is Not Evaluated while Polar bear is Vulnerable.
Taxonomic Classification
| Rank | Polar bear | |
|---|---|---|
| Kingdom | Archaea (Archaea) | Animalia (動物) |
| Phylum | Halobacteriota (Halobacteriota) | Chordata (脊索動物) |
| Class | Methanomicrobia (メタノミクロビウム綱) | Mammalia (哺乳類) |
| Order | Methanomicrobiales (Methanomicrobiales) | Carnivora (ネコ目) |
| Family | Methanospirillaceae | Ursidae (Bears) |
| Genus | Methanospirillum | Ursus (Bears) |
| Species | Methanospirillum lacunae | 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
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.
Methanospirillum lacunae はMethanospirillaceae科のらせん形嫌気性メタン生成古細菌で、水素と二酸化炭素またはギ酸からメタンを生成する。下水汚泥、湿地、湖底堆積物などの嫌気性環境に生息する。
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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