Bay-rush vs Colombian Oldfield Mouse

Zamia integrifolia compared with Thomasomys dispar

Key Differences

• Bay-rush is Near Threatened while Colombian Oldfield Mouse is Data Deficient.

Taxonomic Classification

Rank	Bay-rush	Colombian Oldfield Mouse
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Tracheophyta	Chordata (Chordates)
Class	Cycadopsida (Cycadopsida)	Mammalia (Mammals)
Order	Cycadales (Cycadales)	Rodentia (Rodents)
Family	Zamiaceae	Cricetidae
Genus	Zamia	Thomasomys
Species	Zamia integrifolia	Thomasomys dispar

Conservation Status

Bay-rush

NT — Near Threatened

Colombian Oldfield Mouse

DD — Data Deficient

Physical Characteristics

Attribute	Bay-rush	Colombian Oldfield Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bay-rush

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical coniferous forests, among 5 distinct biome types within the Neotropic biogeographic realm.

Range

Found in Cuba. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Colombian Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Bay-rush

The Bay-rush (Zamia integrifolia) is a species in the genus Zamia. It is currently classified as Near Threatened on the IUCN Red List. Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical coniferous forests, among 5 distinct biome types within the Neotrop

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.