Canadian beaver vs コウテイペンギン
Castor canadensis compared with Aptenodytes forsteri
Key Differences
- Canadian beaver is Not Evaluated while コウテイペンギン is Near Threatened.
- Canadian beaver is herbivore while コウテイペンギン is carnivore.
- コウテイペンギン is 1.6x heavier than Canadian beaver.
- コウテイペンギン lives longer (20 years vs 15 years).
Taxonomic Classification
| Rank | Canadian beaver | コウテイペンギン |
|---|---|---|
| Kingdom same | Animalia (動物) | Animalia (動物) |
| Phylum same | Chordata (脊索動物) | Chordata (脊索動物) |
| Class | Mammalia (哺乳類) | Aves (鳥類) |
| Order | Rodentia (ネズミ目) | Sphenisciformes (Penguins) |
| Family | Castoridae (Beavers) | Spheniscidae (Penguins) |
| Genus | Castor (Beavers) | Aptenodytes (Great Penguins) |
| Species | Castor canadensis | Aptenodytes forsteri |
Evolutionary Relationship
Canadian beaver and コウテイペンギン share a common ancestor at the Phylum level: Chordata. (脊索動物)
Conservation Status
Canadian beaver
NE — Not EvaluatedPopulation: ~15.0M
Trend: Stable →
コウテイペンギン
NT — Near ThreatenedPopulation: ~595.0K
Trend: Stable →
Physical Characteristics
| Attribute | Canadian beaver | コウテイペンギン |
|---|---|---|
| Diet | Herbivore | Carnivore |
| Average Lifespan | 15 years | 20 years |
| Average Length | 1.0 m | 1.1 m |
| Average Weight | 25.0 kg | 40.0 kg |
Habitat & Geographic Range
Canadian beaver
Typically found in grasslands, forests, and vegetated habitats.
Widely distributed across Europe (15 countries), North America (United States), and South America (Argentina, Chile).
コウテイペンギン
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. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.
Canadian beaver
北米最大の齧歯類であるカナダビーバーは体重32kgにも達し、カナダ・米国北部の河川、湖沼、湿地に生息する優れた生態系エンジニアです。木を倒して数百メートルに及ぶダムを造ることで池を形成し、数百種の生息環境を提供します。その巣穴や運河は流域全体を変化させます。かつては毛皮のために絶滅寸前まで狩られましたが、個体数は大きく回復しています。
コウテイペンギン
世界最大のペンギンであるコウテイペンギン(Aptenodytes forsteri)は体高最大1.2m、体重45kgで、地球上で最も過酷な環境の一つである南極大陸に生息しています。零下60°C以下の真冬の暗闇の中で繁殖し、雌が海上にいる間、雄が65日間足の上で育雛嚢の下に一つの卵を温め続けます。数千羽からなる群れで個体が暖かい中心部を循環するいわゆるハドリング行動は、協調的な生存戦略の傑作です。
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