Cochabamba-Feldmaus vs Japanischer Rochen

Akodon siberiae compared with Mobula japanica

Key Differences

• Cochabamba-Feldmaus is Near Threatened while Japanischer Rochen is Not Evaluated.

Taxonomic Classification

Rank	Cochabamba-Feldmaus	Japanischer Rochen
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Mammalia (Säugetiere)	Elasmobranchii
Order	Rodentia (Nagetiere)	Myliobatiformes (Stechrochenartige)
Family	Cricetidae	Myliobatidae
Genus	Akodon	Mobula
Species	Akodon siberiae	Mobula japanica

Evolutionary Relationship

Cochabamba-Feldmaus and Japanischer Rochen share a common ancestor at the Phylum level: Chordata. (Chordatiere)

Conservation Status

Cochabamba-Feldmaus

NT — Near Threatened

Japanischer Rochen

NE — Not Evaluated

Physical Characteristics

Attribute	Cochabamba-Feldmaus	Japanischer Rochen
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cochabamba-Feldmaus

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Japanischer Rochen

Habitat

Native to Asia and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Chile and Taiwan.

Cochabamba-Feldmaus

The Cochabamba akodont (Akodon siberiae) is a small South American rodent endemic to the Cochabamba department of Bolivia. A member of the speciose genus Akodon — the so-called grass mice — this species inhabits humid montane grasslands and shrublands in the Andes, typically at elevations between 2,500 and 3,800 metres. Like other akodont rodents, it is primarily granivorous and insectivorous, foraging among dense grass tussocks and low vegetation for seeds, invertebrates, and plant material. The species is fossorial to a degree, constructing runways and shallow burrows beneath grass cover that provide shelter from predators including raptors and small carnivores. Akodon siberiae was described relatively recently from specimens collected in the Cochabamba region and remains poorly known; much of its ecology and reproductive biology has been inferred from better-studied congeners. Population size estimates are unavailable, though the IUCN classifies it as Near Threatened due to its restricted range and ongoing habitat conversion driven by agricultural expansion, livestock grazing, and burning of Andean grasslands. The species may have some tolerance for modified habitats but its dependence on intact puna and montane scrub makes it vulnerable to continued land-use change. Conservation measures such as protection of remnant native grassland within its limited range are considered important for its long-term persistence.