Black-stemmed Goldendrop vs Cochabamba Akodont

Onosma nigricaulis compared with Akodon siberiae

Key Differences

• Black-stemmed Goldendrop is Critically Endangered while Cochabamba Akodont is Near Threatened.

Taxonomic Classification

Rank	Black-stemmed Goldendrop	Cochabamba Akodont
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Mammalia (Mammals)
Order	Boraginales (Boraginales)	Rodentia (Rodents)
Family	Boraginaceae	Cricetidae
Genus	Onosma	Akodon
Species	Onosma nigricaulis	Akodon siberiae

Conservation Status

Black-stemmed Goldendrop

CR — Critically Endangered

Cochabamba Akodont

NT — Near Threatened

Physical Characteristics

Attribute	Black-stemmed Goldendrop	Cochabamba Akodont
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-stemmed Goldendrop

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Cochabamba Akodont

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Black-stemmed Goldendrop

The Black-stemmed Goldendrop (Onosma nigricaulis) is a species in the genus Onosma. It is currently classified as Critically Endangered on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Cochabamba Akodont

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.