Abrothrix

Abrothrix is a genus of South American rodents belonging to the subfamily Sigmodontinae, commonly known as sigmodontine rodents. These small to medium-sized mice are found in a variety of habitats across South America, including forests, grasslands, and shrublands. The genus was first described by the British zoologist Oldfield Thomas in 1917.

Species within the genus Abrothrix are characterized by their generally slender bodies, relatively long tails, and large eyes and ears. Their fur coloration varies among species, often featuring shades of brown, gray, or reddish-brown. Diet typically consists of insects, seeds, fruits, and other plant matter.

The taxonomic classification of Abrothrix has been subject to revision over time, with some species previously assigned to other genera now recognized as part of Abrothrix. Current research, often based on molecular data, continues to refine our understanding of the relationships within this genus and its evolutionary history.

Abrothrix rodents play a role in their ecosystems as both prey for larger animals and as seed dispersers. Their distribution is widespread, with different species occupying specific geographic regions, contributing to the biodiversity of South American fauna. Conservation status varies among the species, with some facing threats from habitat loss and degradation.