Carricero de Basora vs Colombian Oldfield Mouse

Acrocephalus griseldis compared with Thomasomys dispar

Key Differences

• Carricero de Basora is Endangered while Colombian Oldfield Mouse is Data Deficient.

Taxonomic Classification

Rank	Carricero de Basora	Colombian Oldfield Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Aves (Birds)	Mammalia (mamíferos)
Order	Passeriformes (paseriformes)	Rodentia (Rodents)
Family	Acrocephalidae	Cricetidae
Genus	Acrocephalus	Thomasomys
Species	Acrocephalus griseldis	Thomasomys dispar

Evolutionary Relationship

Carricero de Basora and Colombian Oldfield Mouse share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

Carricero de Basora

EN — Endangered

Colombian Oldfield Mouse

DD — Data Deficient

Physical Characteristics

Attribute	Carricero de Basora	Colombian Oldfield Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Carricero de Basora

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and flooded grasslands and savannas, among 5 distinct biome types within the Afrotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Kenya and Norway. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Colombian Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Carricero de Basora

The Basra Reed Warbler (Acrocephalus griseldis) is a species in the genus Acrocephalus. It is currently classified as Endangered on the IUCN Red List. Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and flooded grasslands and savannas, among 5 distinct biome types within the Afrotropic biogeo.

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.