Black Duiker vs Colombian Oldfield Mouse

Cephalophus niger compared with Thomasomys dispar

Key Differences

• Black Duiker is Least Concern while Colombian Oldfield Mouse is Data Deficient.

Taxonomic Classification

Rank	Black Duiker	Colombian Oldfield Mouse
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class same	Mammalia (lớp Thú)	Mammalia (lớp Thú)
Order	Artiodactyla (Bộ Guốc chẵn)	Rodentia (Bộ Gặm nhấm)
Family	Bovidae (Bovids)	Cricetidae
Genus	Cephalophus	Thomasomys
Species	Cephalophus niger	Thomasomys dispar

Evolutionary Relationship

Black Duiker and Colombian Oldfield Mouse share a common ancestor at the Class level: Mammalia. (lớp Thú)

Conservation Status

Black Duiker

LC — Least Concern

Colombian Oldfield Mouse

DD — Data Deficient

Physical Characteristics

Attribute	Black Duiker	Colombian Oldfield Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Duiker

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Colombian Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Black Duiker

The Black Duiker (Cephalophus niger) is a species in the genus Cephalophus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

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.