Ardilla Gris Oriental vs Indo-Pacific Bottlenose Dolphin

Sciurus carolinensis compared with Tursiops aduncus

Key Differences

• Ardilla Gris Oriental is Not Evaluated while Indo-Pacific Bottlenose Dolphin is Near Threatened.

Taxonomic Classification

Rank	Ardilla Gris Oriental	Indo-Pacific Bottlenose Dolphin
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Mammalia (哺乳類)	Mammalia (哺乳類)
Order	Rodentia (ネズミ目)	Cetacea (Whales & Dolphins)
Family	Sciuridae (Squirrels)	Delphinidae (Oceanic Dolphins)
Genus	Sciurus (Tree Squirrels)	Tursiops (Bottlenose Dolphins)
Species	Sciurus carolinensis	Tursiops aduncus

Evolutionary Relationship

Ardilla Gris Oriental and Indo-Pacific Bottlenose Dolphin share a common ancestor at the Class level: Mammalia. (哺乳類)

Conservation Status

Ardilla Gris Oriental

NE — Not Evaluated

Trend: Stable →

Indo-Pacific Bottlenose Dolphin

NT — Near Threatened

Physical Characteristics

Attribute	Ardilla Gris Oriental	Indo-Pacific Bottlenose Dolphin
Diet	Omnivore	—
Average Lifespan	6 years	—
Average Length	25 cm	—
Average Weight	500 g	—

Habitat & Geographic Range

Ardilla Gris Oriental

Habitat

Typically found in a wide range of habitat types.

Range

Widely distributed across Africa (South Africa), Asia (Indonesia), Europe (10 countries), and North America (Mexico, United States).

Indo-Pacific Bottlenose Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Taiwan. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Ardilla Gris Oriental

ヒガシハイリス（Sciurus carolinensis）は北米東部原産の中型樹上性げっ歯類で、ヨーロッパをはじめ世界各地に移入された外来種である。IUCNレッドリストでは軽度懸念（LC）に分類されており、都市公園や郊外の森林環境への適応力が高く、堅果の埋蔵行動が植物の種子散布に重要な役割を果たしている。英国ではニホンリスを食物競争で駆逐しており、侵略的外来種としても問題視されている。