Euryoryzomys russatus
It is a member of the order Rodentia and family Cricetidae[14] with the genus Euryoryzomys comprising six valid species.[23] Euryoryzomys russatus is a nocturnal, terrestrial rodent that moves primarily over leaf litter found on the forest floor.[21] Euryoryzomys russatus was shown to have greater abundance in areas with woody debris, low leaf litter height, and high arthropod biomass during the warm-wet season and during the cool-dry season the greatest abundance was seen in areas with high leaf litter humidity.[24] Genetic analyses[17] have grouped different populations of E. russatus into three clades using mitochondrial and nuclear gene regions, however no subspecies have been identified.[26] Through karyotyping of E. russatus individuals from Parque Estadual da Serra do Mar (Santa Virginia, Brazil) it was found that they possess a chromosome number of 2n=80.[10] Research into the gastrointestinal parasites of E. russatus found eight different endoparasites in island and continental populations.[20] A single individual was found to possess antibodies from a systemic fungal infection with Paracoccidioides brasiliensis.[30] A study on Rickettsia rickettsii, Brazilian Spotted-fever has shown E. russatus to be a host for the tick species Amblyomma ovale, which is a known vector for the zoonotic disease.
Holotypecraniumjunior synonymConservation statusLeast ConcernIUCN 3.1Scientific classificationEukaryotaAnimaliaChordataMammaliaRodentiaCricetidaeSigmodontinaeEuryoryzomysBinomial nameWagnerSynonymsrodentOryzomysJohann Andreas WagnerBrazilParaguayArgentinamontaneAtlantic ForestAmazon rainforestSanta Catarina IslandMinas GeraisGuaricana National ParkParanáIlha do CardosoSão PauloRio de JaneiropelageE. lamiasex ratiosPoaceaealtricialE. emmonsaeE. nitidusjaguarundioncillaocelotDomestic catsendoparasitesnematodeParacoccidioides brasiliensisIUCN Red List of Threatened SpeciesMusser, G. G.Wilson, D. E.American Museum of Natural HistoryOryzomyini (rice rats)AegialomysA. galapagoensisA. xanthaeolusAgathaeromysA. donovaniA. praeuniversitatisAmphinectomysA. savamisCarletonomysC. cailoiCerradomysC. goytacaC. langguthiC. maracajuensisC. marinhusC. scottiC. subflavusC. vivoiDrymoreomysD. albimaculatusEremoryzomysE. poliusE. legatusE. macconnelliHandleyomysH. alfaroiH. chapmaniH. fuscatusH. intectusH. melanotisH. rhabdopsH. rostratusH. saturatiorHolochilusH. brasiliensisH. chacariusH. sciureusHylaeamysH. acritusH. laticepsH. megacephalusH. oniscusH. perenensisH. tateiH. yunganusLundomysL. molitorMegalomysM. audreyaeM. curazensisM. desmarestiiM. georginaeM. luciaeMelanomysM. caliginosusM. robustulusM. zunigaeMicroakodontomysM. transitoriusMicroryzomysM. altissimusM. minutusMindomysM. hammondiNeacomysN. dubostiN. guianaeN. minutusN. musseriN. paracouN. pictusN. spinosusN. tenuipes