Repositório RCAAP

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In the present study were analyzed and characterized the attacks on herds of livestock by vampire bats Desmodus rotundus in São Pedro (São Paulo, Brazil). It was found that the frequency of attacks of Desmodus rotundus to domestic herbivores in São Pedro-SP during the study period, between 2000 and 2001 was 4.2%, but may have been underestimated due to the extensive management system used for cattle, which constitutes 90.07% of the total herd. In the properties they owned cattle and horses, and therefore with the same time searching for prey by bats because the same distance from the shelter to the properties, there was a higher percentage of attacks on horses in 90.47% of properties indicating the possibility Desmodus have as of this preferred prey animals. We identified nine main shelter of the vampire bat, these three were classified as maternity colonies, all located in caves, with higher numbers of individuals. It was shown that the main shelters Desmodus were closer than 3 km of the main water bodies of the study area, confirming other studies reporting that the major rivers of the state of São Paulo are the major geographical features related to the presence of Desmodus.

Financiadora de Estudos e Projetos

Universidade Federal de Minas Gerais

Universidade Federal de Sao Carlos

Universidade Federal de Minas Gerais

Universidade Federal de Sao Carlos

The ichthyofauna of Sapucaí Mirim River, a tributary of Grande River at upper Paraná River was studied with a purpose on composition, seasonality and distribution environments. Samples were collected from June 2007 to June 2009. Different fishing gears were used to obtain samples: fine-mesh sieve, gill nets and cast nets of different mesh sizes and trawl. The results included the collection of 2,097 specimens belonging to 76 species of fish, divided into six Orders (Characiformes with 35 species, Siluriformes with 30, Perciformes with 5, Gymnotiformes with 3, Cyprinodontiformes with 2 and Synbranchiformes with one. The ichthyofauna composition showed slight dominance of Characiformes (46%) on Siluriformes (39%) and a high dominance of these two orders in relation to other orders: Perciformes (7%), Gymnotiformes (4%), Cyprinodontiformes (3%) and Synbranchiformes (1%). Defined a group of species listed among the main: Astyanax altiparanae, A. fasciatus, Steindachnerina insculpta, Leporinus friderici, Hypostomus ancistroides, Hypostomus strigaticeps, Hypostomus sp.1 and Rhamdia quelen. Defined a group of accessory species: Astyanax schubarti, Galeocharax knerii, Hoplosternum littorale, Hypostomus sp.2, Loricaria cf. lentiginosa, Schizodon nasutus and finally, a group of rare species: Bryconamericus sp., Leporinus striatus, Megalechis personata, Pimelodus sp., Pseudopimelodus mangurus, Salminus brasiliensis. Considerations on the preferred environment of the species in different sampling points and a comparison of the ichthyofauna Sapucaí Mirim River and the river Grande within the reservoir UHE Porto Colombia are presented here.

Universidade Federal de Sao Carlos

Universidade Federal de Sao Carlos

Universidade Federal de Sao Carlos

Universidade Federal de Sao Carlos

Universidade Federal de Sao Carlos

Universidade Federal de Minas Gerais

Universidade Federal de Minas Gerais

Universidade Federal de Sao Carlos

Financiadora de Estudos e Projetos

Universidade Federal de Minas Gerais

Universidade Federal de Minas Gerais

Universidade Federal de Sao Carlos