Ardilla Gris Oriental vs Hard Pine

Sciurus carolinensis compared with Pinus rigida

Taxonomic Classification

Rank	Ardilla Gris Oriental	Hard Pine
Kingdom	Animalia (動物)	Plantae (植物)
Phylum	Chordata (脊索動物)	Coniferophyta (Conifers)
Class	Mammalia (哺乳類)	Pinopsida (マツ綱)
Order	Rodentia (ネズミ目)	Pinales (マツ目)
Family	Sciuridae (Squirrels)	Pinaceae (Pine Family)
Genus	Sciurus (Tree Squirrels)	Pinus (Pines)
Species	Sciurus carolinensis	Pinus rigida

Conservation Status

Ardilla Gris Oriental

NE — Not Evaluated

Trend: Stable →

Hard Pine

NE — Not Evaluated

Physical Characteristics

Attribute	Ardilla Gris Oriental	Hard Pine
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).

Hard Pine

Habitat

Typically found in temperate and boreal forests, often at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (9 countries), North America (Canada, United States), and South America (Brazil).

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。