Banded Demoiselle vs blue whale

Calopteryx splendens compared with Balaenoptera musculus

Key Differences

  • Banded Demoiselle is Least Concern while blue whale is Vulnerable.

Taxonomic Classification

Rank Banded Demoiselle blue whale
Kingdom same Animalia (動物) Animalia (動物)
Phylum Arthropoda (節足動物) Chordata (脊索動物)
Class Insecta (昆虫) Mammalia (哺乳類)
Order Odonata (蜻蛉目) Cetacea (Whales & Dolphins)
Family Calopterygidae Balaenopteridae (Rorquals)
Genus Calopteryx Balaenoptera (Rorquals)
Species Calopteryx splendens Balaenoptera musculus

Evolutionary Relationship

Banded Demoiselle and blue whale share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

Banded Demoiselle

LC — Least Concern

blue whale

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

Physical Characteristics

Attribute Banded Demoiselle blue whale
Diet Carnivore
Average Lifespan 90 years
Average Length 30.0 m
Average Weight 150.0 t

Habitat & Geographic Range

Banded Demoiselle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Luxembourg, Norway, and Sweden.

blue whale

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Colombia, Ecuador). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Banded Demoiselle

バンデッドデモワゼル(Calopteryx splendens)は西ヨーロッパ〜中央アジアの緩流水域に分布する大型のカワトンボ科のトンボで、雄の翼中央の特徴的な青紫色の金属光沢の帯が美しい求愛ディスプレイに使われる。IUCNレッドリストでは軽度懸念(LC)に分類されており、清澄で緩やかな河川・小川の水生植物周辺に生息する。翅を優雅に広げてひらひらと飛ぶ蝶のような飛翔スタイルが観察者を魅了する淡水生態系の象徴的な種である。

blue whale

地球上で生きたことが知られている最大の動物であるシロナガスクジラ(Balaenoptera musculus)は、体長33メートル、体重200トンに達することができ、心臓だけで小型自動車ほどの重さがあります。全ての海洋に生息し、極地の餌場と熱帯の繁殖地の間を回遊します。1日最大4トンのオキアミを摂取する濾過摂食者です。20世紀の捕鯨による絶滅危機からの回復後、世界的な個体数は10,000〜25,000頭と推定される絶滅危惧種です。

Shared Countries

Both species can be found in 3 countries:

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