Akodon
The South American field mice or South American grass mice ( Akodon ) are a very species-rich genus of Neuweltmäusen whose representatives are ubiquitous in South America and are among the most common mammals of the continent.
These mice have a head-body length of 8-14 inches, added 5 to 10 cm tail. You are wühlmausartig of shape, have a stocky body and short legs. The soft fur is oberseits gray or brown above, gray or white.
Most species live in the grasslands of the pampas and in low and middle altitudes of the Andes. Only a few species are native to the tropical rain forest. The food is mainly vegetable, but all types will also take insects as complementary foods.
The Azara grass mouse as a very common type in the east of South America is particularly well researched. Their gestation period is 22 days and twice a year she gives birth. The average litter size is 3.5. The life span is only seven to twelve months, with the fall -born mice live significantly longer than those that come in the spring to the world. Like other types also, the Azara grass mouse transmit the Hanta virus and is considered a grain pest.
System
There is disagreement on how far the genus Akodon has to be taken. In some classifications applicable here as independent genera Abrothrix, Deltamys, Necromys, Thalpomys and Thaptomys be incorporated. On the other hand, the subgenus Microxus is sometimes accorded the genus status. The following species list largely follows Wilson & Reeder (2005) and recognizes 42 species.
- Not assigned to a subgenus Akodon aerosus inhabits the Andes of Ecuador, Peru and Bolivia.
- Akodon bogotensis lives in Colombia and Venezuela.
- Akodon affinis inhabits the western Colombia.
- Akodon albiventer is spread from southeast Peru to northern Argentina.
- Akodon aliquantulus occurs only in northwestern Argentina.
- Akodon azarae lives in northern Argentina, Paraguay, Uruguay and southern Brazil.
- Akodon boliviensis is spread from southeast Peru to central Bolivia.
- Akodon cursor lives in southeast Brazil and possibly northern Argentina.
- Akodon dayi inhabited Bolivia.
- Akodon dolores is known only from the central Argentina.
- Akodon fumeus is spread from southeast Peru to northern Argentina.
- Akodon iniscatus lives in central and southern Argentina.
- Akodon juninensis occurs in the central Peru.
- Akodon kofordi inhabited Southeastern Peru and western Bolivia.
- Akodon leucolimnaeus lives in northwestern Argentina.
- Akodon lindberghi is native to central and eastern Brazil.
- Akodon lutescens comes from Central Peru to northern Argentina before.
- Akodon molinae lives in southern Argentina.
- Akodon mollis inhabited Ecuador and Peru.
- Akodon montensis is native to eastern Paraguay, south-east Brazil and northeastern Argentina.
- Akodon mystax is only known from the Southeast Brazilian highlands.
- Akodon neocenus lives in western Argentina.
- Akodon oenos is known only from western Argentina.
- Akodon orophilus inhabited the central Peru.
- Akodon paranaensis occurs in northeastern Argentina and southeastern Brazil.
- Akodon pervalens is native to southern Bolivia.
- Akodon philipmyersi was described in 2005 and is only from northern Argentina.
- Akodon reigi lives in Osturuguay and neighboring regions of Brazil.
- Akodon sanctipaulensis inhabited southeastern Brazil.
- Akodon serrensis is also located in southeastern Brazil.
- Akodon simulator comes from southern Bolivia to northern Argentina before.
- Akodon spegazzinii lives in northwestern Argentina.
- Akodon subfuscus inhabited southern Peru and western Bolivia.
- Akodon surdus is located in southeastern Peru.
- Akodon sylvanus lives in northwestern Argentina.
- Akodon toba inhabited western Paraguay, southeast Bolivia and northern Argentina.
- Akodon torques occurs in southeastern Peru.
- Akodon varius is confined to Western Bolivia.
- Akodon Budini lives in southern Bolivia and northern Argentina.
- Akodon siberiae is known only from central Bolivia.
- Akodon latebricola inhabited northern Ecuador.
- Akodon mimus lives in southeast Peru and western Bolivia.