Colombian Oldfield Mouse vs Eurasian red squirrel

Thomasomys dispar compared with Sciurus vulgaris

Key Differences

• Colombian Oldfield Mouse is Data Deficient while Eurasian red squirrel is Least Concern.

Taxonomic Classification

Rank	Colombian Oldfield Mouse	Eurasian red squirrel
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 same	Rodentia (ネズミ目)	Rodentia (ネズミ目)
Family	Cricetidae	Sciuridae (Squirrels)
Genus	Thomasomys	Sciurus (Tree Squirrels)
Species	Thomasomys dispar	Sciurus vulgaris

Evolutionary Relationship

Colombian Oldfield Mouse and Eurasian red squirrel share a common ancestor at the Order level: Rodentia. (ネズミ目)

Conservation Status

Colombian Oldfield Mouse

DD — Data Deficient

Eurasian red squirrel

LC — Least Concern

Physical Characteristics

Attribute	Colombian Oldfield Mouse	Eurasian red squirrel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Colombian Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Eurasian red squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found across Asia (Georgia) and Europe (5 countries).

Colombian Oldfield Mouse

<em>Thomasomys dispar</em>, commonly known as the Colombian Oldfield Mouse, is a small rodent species belonging to the genus <em>Thomasomys</em> within the family Cricetidae. This species is classified as Data Deficient, indicating that insufficient information is currently available to evaluate its conservation status with confidence. It has been documented in Colombia, where it inhabits diverse terrestrial and aquatic-adjacent environments. Members of the genus <em>Thomasomys</em> are typically associated with high-altitude Andean habitats, including páramo grasslands, shrublands, and montane forest edges, where they occupy ground-level microhabitats and burrow in soft soils. These mice are generally omnivorous, consuming seeds, plant material, and invertebrates, though specific dietary data for <em>Thomasomys dispar</em> have not been recorded. Biological traits of this species remain poorly documented in the scientific literature. The Data Deficient classification highlights the need for targeted surveys in Colombian Andean regions to determine population size, distribution, and the ecological requirements of this poorly known rodent.

Eurasian red squirrel

キタリス（Sciurus vulgaris）はIUCNレッドリストで軽度懸念（LC）に分類されています。分布域全体にわたって広く生息し、個体数は安定しており、早急な保全上の懸念はありません。