The objective of this study was to delimit and quantify areas in terms of their potential for the simultaneous occurrence of dermatobiosis and the Rhipicephalus microplus tick in the municipality of Seropédica, state of Rio de Janeiro, Brazil. For the association of environmental variables involved in the seasonality of these parasites, the Vista SAGA® 2007 information system was used. The evaluation function of this program allowed for the overlaying of digital thematic maps of the municipality that simultaneously demonstrated the spatial and temporal distribution of dermatobiosis and the tick in each season of the year. The Signature function evaluated these maps and produced reports with data in hectares and the percentage of areas with different potentials for the occurrence of these parasitoses. The classes registered on the maps by season were distributed in the following categories: High, Medium, Medium-Low and Low potential for the occurrence of the parasites. The categories High+Medium-Low and Medium+Medium-Low potential represented 24% and 76%, respectively, of the total area of pasture (11,252.62 hectares) during the spring, while the category of Medium+High potential represented 97% and 3% Medium-Low+High of the total area of pasture during the winter. It was verified that the geoprocessing was quite effective in the quantification and delimitation of areas with potential for the occurrence of these parasitoses, thus demonstrating that it could be an important tool in regard to decisions involved in the control of such events.
Diptera; Ixodidae; GIS; epidemiology