The interface between wild small mammals and domestic animals of the fragmented area from High Paranapanema, Sao Paulo state, Brazil

Author(s)

Alice Soares de Oliveira

• Document type: Master's Dissertation
• Press: Piracicaba.
• Institution: Universidade de São Paulo (USP). Escola Superior de Agricultura Luiz de Queiroz (ESALA/BC)
• Defense date: 2011-08-12

Examining board members

Eliana Reiko Matushima; Plinio Barbosa de Camargo; Silvio Arruda Vasconcellos

• Advisor: Eliana Reiko Matushima

Abstract

Três lagoas farm, which is located in Angatuba municipality, in High Paranapanema (southeast of São Paulo state) is an area where exotic species were introduced, such as Eucalyptus sp and Brachiaria sp, which fragmented the habitat in the original Cerradão (a tropical savanna ecoregion). Once the human activity has been established in a natural environment, the contact among human beings and domestic animals with wild animal populations has increased. Nevertheless, the influence of such factors on the ecosystem has not been clarified yet. The aim of the present study was to research the exposition between wild small mammals and domestic animals of this area against infecctious and transmitters of zoonoses agents (Leptospira spp., Toxoplasma gondii, Lyssavirus, Neospora caninum and Rickettsia spp.). The raising of pathogens in the wild animals revealed positive serological results for Leptospira spp. (5,5%, n= 73), Rickettsia spp. (7,9%, n=38) e Toxoplasma gondii (16,1%, n= 56). In relation to the domestic animals, were showed 40% of dogs (n=10) seropositives for N. caninum, 20% were seropositives for Leptospira spp. and T. gondii, and 23.7% of dogs presented antibody titers less than or equal to 0,5 UI/ml for Rabies. The cattle (n=42) had serologic results positives for N. caninum (23,8%) and for Leptospira spp. (40,5%). 47.6% of the cattle had not been vaccinated or vaccination for the rabies virus was unknown. Of the 22 cattle known to be vaccinated for rabies, 36% were less reactive to serologic test. These results presented, besides evaluating the local sanitary status, they can contribute to the greater understanding of the interface between domestic and wild fauna in agricultural ecosystems. (AU)

• FAPESP's process: 09/06608-5 - The interface between wild small mammals and domestic animals and its impact on the preservation of the fragmented area of High Paranapanema
• Grantee: Alice Soares de Oliveira
• Support Opportunities: Scholarships in Brazil - Master