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Ticks and tickborne rickettsia ecology in a natural reserve of brazilian savannah

Grant number: 12/10102-2
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): August 01, 2012
Effective date (End): February 29, 2016
Field of knowledge:Agronomical Sciences - Veterinary Medicine - Preventive Veterinary Medicine
Principal researcher:Marcelo Bahia Labruna
Grantee:Amalia Regina Mar Barbieri
Home Institution: Faculdade de Medicina Veterinária e Zootecnia (FMVZ). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

The Grande Sertão Veredas National (PNGSV) is one of the last natural reserves of brazilian savannah, located in the northwest of Minas Gerais state. This project aims to study for the first time the diversity of ticks on PNGSV, as well as the diversity of pathogens transmitted by these ticks, followed by molecular characterization of rickettsia isolated from ticks. It will also be assessed the role of wild birds and small mammals as hosts for ticks and rickettsia in PNGSV. Last but not least, we will evaluate the ticks population dynamics of the most abundant tick species in PNGSV. For this, the project involves 24 months of fieldwork, which includes eight campaigns at the park, with intervals of 3 months. In each campaign, wild birds and small mammals will be captured using mist nets and "live traps", respectively, and their ticks will be collected as well, ticks from the environment will also be collected using CO2 traps and drag cloth . Ticks will be analyzed by molecular techniques and by inoculation in cell cultures for infection by Rickettsia spp. The mammals will be evaluated for rickettsia infection by serological techniques. Molecular characterization will be performed with the species of rickettsia isolated from ticks. These actions aim to bring a major contribution to the natural history of ticks and rickettsia associated with ticks in PNGSV, which is still one of the largest reserves of Brazilian savannah, but never before explored regarding of ticks and their associated pathogens.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
JUAN SZABO, MATIAS PABLO; MARTINS, THIAGO FERNANDES; MAR BARBIERI, AMALIA REGINA; COSTA, FRANCISCO BORGES; SOARES, HERBERT SOUSA; TOLESANO-PASCOLI, GRAZIELA VIRGINIA; TORGA, KHELMA; SARAIVA, DANILO GONCALVES; RAMOS, VANESSA DO NASCIMENTO; OSAVA, CAROLINA FONSECA; DE CASTRO, MARCIO BOTELHO; LABRUNA, MARCELO BAHIA. Ticks biting humans in the Brazilian savannah: Attachment sites and exposure risk in relation to species, life stage and season. TICKS AND TICK-BORNE DISEASES, v. 11, n. 2 MAR 2020. Web of Science Citations: 0.
BARBIERI, AMALIA R. M.; SZABO, MATIAS P. J.; COSTA, FRANCISCO B.; MARTINS, THIAGO F.; SOARES, HERBERT S.; PASCOLI, GRAZIELA; TORGA, KHELMA; SARAIVA, DANILO G.; RAMOS, VANESSA N.; OSAVA, CAROLINA; GERARDI, MONIZE; DIAS, RICARDO AUGUSTO; MORAES, JR., EDSEL A.; FERREIRA, FERNANDO; CASTRO, MARCIO B.; LABRUNA, MARCELO B. Species richness and seasonal dynamics of ticks with notes on rickettsial infection in a Natural Park of the Cerrado biome in Brazil. TICKS AND TICK-BORNE DISEASES, v. 10, n. 2, p. 442-453, FEB 2019. Web of Science Citations: 8.
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
. Ecology of ticks and tick-borne riquetsia in a natural reserve of Brazilian cerrado. 2016. Doctoral Thesis - Universidade de São Paulo (USP). Faculdade de Medicina Veterinária e Zootecnia (FMVZ/SBD) São Paulo.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.