巴西凫 vs Cochabamba Akodont

Amazonetta brasiliensis compared with Akodon siberiae

Key Differences

• 巴西凫 is Least Concern while Cochabamba Akodont is Near Threatened.

Taxonomic Classification

Rank	巴西凫	Cochabamba Akodont
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class	Aves (鳥綱)	Mammalia (哺乳動物)
Order	Anseriformes (雁形目)	Rodentia (啮齿目)
Family	Anatidae	Cricetidae
Genus	Amazonetta	Akodon
Species	Amazonetta brasiliensis	Akodon siberiae

Evolutionary Relationship

巴西凫 and Cochabamba Akodont share a common ancestor at the Phylum level: Chordata. (脊索动物门)

Conservation Status

巴西凫

LC — Least Concern

Cochabamba Akodont

NT — Near Threatened

Physical Characteristics

Attribute	巴西凫	Cochabamba Akodont
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

巴西凫

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (5 countries) and South America (Colombia, Ecuador, Venezuela).

Cochabamba Akodont

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

巴西凫

巴西鸭（Amazonetta brasiliensis）在IUCN红色名录中被列为无危（LC）物种。分布广泛，种群数量丰富且稳定，无紧迫保护问题。

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.