Colombian Oldfield Mouse vs Mt Pirri Deermouse

Thomasomys dispar compared with Isthmomys pirrensis

Key Differences

• Colombian Oldfield Mouse is Data Deficient while Mt Pirri Deermouse is Least Concern.

Taxonomic Classification

Rank	Colombian Oldfield Mouse	Mt Pirri Deermouse
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class same	Mammalia (млекопитающие)	Mammalia (млекопитающие)
Order same	Rodentia (грызуны)	Rodentia (грызуны)
Family same	Cricetidae	Cricetidae
Genus	Thomasomys	Isthmomys
Species	Thomasomys dispar	Isthmomys pirrensis

Evolutionary Relationship

Colombian Oldfield Mouse and Mt Pirri Deermouse share a common ancestor at the Family level: Cricetidae.

Conservation Status

Colombian Oldfield Mouse

DD — Data Deficient

Mt Pirri Deermouse

LC — Least Concern

Physical Characteristics

Attribute	Colombian Oldfield Mouse	Mt Pirri Deermouse
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.

Mt Pirri Deermouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

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.

Shared Countries

Both species can be found in 1 countries:

🇨🇴 Colombia