Estudo das atividades de mutucas (diptera: tabanidae) em equinos e bovinos, do potencial na transmissão de agentes patogênicos e do controle, na Amazônia oriental

Abstract

The studies are being developed to define the flight capacity and displacement of tabanids among host animals in search of blood repast. The experiments were conducted in a strip of secondary forest at the Research Campus of the Museu Paraense Emílio Goeldi, in Belém, Pará, from February to May 1998. The tabanids captured were identified, marked, and released at two defined release points at defined distances from the three horses: 10, 30, 50, 70, 90, and 110m. The recaptured tabanids were manually marked and released. All data were recorded in spreadsheets. The marks were made with plastic, non-toxic paints of different colors, with a small drop on the back of the mesonotum. The following species were collected; the respective numbers of individuals followed by the percentage recaptured are presented in parentheses: Tabanus occidentalis (843 - 25%), T.sorbillans (63 - 11%), T. antarcticus (19 - 36%), T. pungens (19 - 15%), T. oliveceiventris (09 - 33%), T. güyanensis (05 - 0%), T. discus (03 - 0%), T.piceiventris (O 1 - 0%), T. discifer (02 - 0%), Leucotabanus exaestuans (06 - 16%), Chlorotabanus inanis (04 - 25%), Cryptotilus unicolor (01 - 0%) and Chrysops variegatus (05 - 0%). Accumulating the results of all species 980 tabanids were captured and 23% of these were recaptured. These results already indicate useful and new information for livestock management to avoid disease transmission by tabanids.