| Koford's grass mouse | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Rodentia |
| Family: | Cricetidae |
| Subfamily: | Sigmodontinae |
| Genus: | Akodon |
| Species: | A. kofordi |
| Binomial name | |
| Akodon kofordi Myers & Patton, 1989 | |
Koford's grass mouse (Akodon kofordi) is a species of rodent in the family Cricetidae. It is found only in Peru. It is named after American biologist Carl B. Koford.
The rodent subfamily Sigmodontinae includes New World rats and mice, with at least 376 species. Many authorities include the Neotominae and Tylomyinae as part of a larger definition of Sigmodontinae. When those genera are included, the species count numbers at least 508. Their distribution includes much of the New World, but the genera are predominantly South American, such as brucies. They invaded South America from Central America as part of the Great American Interchange near the end of the Miocene, about 5 million years ago. Sigmodontines proceeded to diversify explosively in the formerly isolated continent. They inhabit many of the same ecological niches that the Murinae occupy in the Old World.
Akodon azarae, also known as Azara's akodont or Azara's grass mouse, is a rodent species from South America. It is found from southernmost Brazil through Paraguay and Uruguay into eastern Argentina. It is named after Spanish naturalist Félix de Azara.
The Paraná grass mouse is a South American rodent species of the family Cricetidae. It is found in northeastern Argentina and southeastern Brazil.
The Serra do Mar grass mouse or Cerrado grass mouse is a rodent species from South America. It is found in Brazil.
Akodon affinis, also known as the Colombian grass mouse or Cordillera Occidental akodont, is a species of rodent in the family Cricetidae. It is found only in the Cordillera Occidental of Colombia.
Akodon boliviensis, also known as the Bolivian grass mouse or Bolivian akodont, is a species of rodent in the family Cricetidae. It is found in the Andes from southeastern Peru through Bolivia into northwestern Argentina.
The intelligent grass mouse or Patagonian akodont is a species of rodent in the family Cricetidae. It is found in Argentina and Chile.
The Neuquén grass mouse is a species of rodent in the family Cricetidae. It is found only in Argentina. As of 2017, the IUCN synonymizes it with Akodon dolores.
The Altiplano grass mouse is a species of rodent in the family Cricetidae. It is found in Bolivia, and Peru.
The Cochabamba grass mouse is a species of rodent in the family Cricetidae. It is found only in Bolivia. Its natural habitat is subtropical or tropical moist lowland forests.
The white-throated or grey-bellied grass mouse is a species of rodent in the family Cricetidae. It is found in Argentina and Bolivia.
Akodon spegazzinii, also known as Spegazzini's akodont or Spegazzini's grass mouse, is a rodent in the genus Akodon found in northwestern Argentina. It occurs in grassland and forest at 400 to 3,500 m above sea level. After the species was first named in 1897, several other names were given to various populations now included in A. spegazzinii. They are now all recognized as part of a single, widespread and variable species. Akodon spegazzinii is related to Akodon boliviensis and other members of the A. boliviensis species group. It reproduces year-round. Because it is widely distributed and common, Akodon spegazzinii is listed as "least concern" on the IUCN Red List.
The Puno grass mouse is a species of rodent in the family Cricetidae. It is found in Bolivia and Peru.
The silent grass mouse or slate-bellied akodont is a species of rodent in the family Cricetidae. It is endemic to Peru.
Akodon sylvanus, also known as the forest grass mouse or woodland akodont, is a species of rodent in the family Cricetidae. It is found only in a small part of northwestern Argentina.
The Chaco grass mouse is a species of rodent in the family Cricetidae. It is found in Argentina, Bolivia, and Paraguay.
The variable grass mouse is a species of rodent in the family Cricetidae. It is known only from Bolivia, where it is found at elevations from 400 to 3000 m.
Carl Buckingham Koford was an American biologist who is known for his research work on the behavior of the California condor. He attended the Piedmont High School and studied at the University of Washington. Koford began his field work on the California condor in March 1939, spending more than 400 days collecting data. During World War II he interrupted his studies to serve in the U.S. Navy. In 1946 his observations on the condors continued. In 1953 he published the report "The California Condor" where he gave a first estimation of the world population of about 60 individuals. In the 1950s and again in the 1970s he went to South America where he made studies on species like the Vicuña, the Jaguar, the Ocelot or the Jaguarundi. After rumours about the survival of some individuals of Mexican grizzly bear, a species thought to be extinct, Koford went to Mexico in 1969 but failed to rediscover this bear.
Akodon caenosus is a rodent in the genus Akodon found in northwestern Argentina and south-central Bolivia. Since its description in 1918, it has been alternatively classified as a separate species or a subspecies of Akodon lutescens. The species Akodon aliquantulus, described from some very small Argentine specimens in 1999, is now recognized as a synonym of A. caenosus.
The eastern puna mouse is a species of rodent in the family Cricetidae. It is endemic to southern Peru, where it is found in moist areas within puna grassland at elevations of 4500 to 4800 m in the Kallawaya mountain range, a section of the Cordillera Oriental.
