Comunidades de roedores de cultivos de sorgo en la provincia de Córdoba y su posible vinculación con la fiebre hemorrágica argentina

Resumen

The composition of rodent communities in fields dedicated to sorghum culture was studied in seven sites situated along two transects about 500 km long, in the SE of Córdoba Province (Argentina). Four of the sites are in the endemic area of Argentine Hemorrhagic Fever and the other three in the marginal area, free of Junin virus. The animáis were trapped during a short period in May and June, 1977. Eight Crieetidae (Calomys musculinus, Akodon azarae, Calomys laucha, Oligoryzomys flavescens, Cabreramys benefactus, Akodon dolores, Graomys griseoflavus y Calomys callosus) and one Muridae species (Mus musculus) were obtained. Comparative analysis of the species composition of the communities has been performed by using the Mountford Índex. Total number of specimens from Calomys plus Akodon represented, in all the samples, more than 80%. The most abundant species in six out of seven samples was C. musculinus, the most important reservoir of Junin virus. The structure of this species populations was very similar for most of the endemic and marginal areas.