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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/21918


Title: Triatoma rubrovaria   (Blanchard, 1843) (Hemiptera, Reduviidae, Triatominae) II: Trophic Resources and Ecological Observations of Five Populations Collected in the State of Rio Grande do Sul, Brazil
Authors: Almeida, Carlos Eduardo
Duarte, Rosemere
Nascimento, Raquel Guerra do
Pacheco, Raquel S.
Costa, Jane
Keywords: Triatoma rubrovaria   - ecological observations - ecotopes - trophic resource - Rio Grande do Sul - Brazil
Issue Date: 31-Dec-2002
Publisher: Fundação Oswaldo Cruz, Fiocruz
Citation: Memórias do Instituto Oswaldo Cruz (ISSN: 1678-8060) Vol 97 Num 8
Abstract: Triatoma rubrovaria   has become the most frequently captured triatomine species after the control of T. infestans in the State of Rio Grande do Sul (RS), Brazil. Isoenzymatic and chromatic studies indicate the existence of, at least, two distinct phenotypic patterns of T. rubrovaria in RS. The geographic variation noted through molecular tools may also result in distinct profiles of vectorial potentiality. In order to enhance our understanding of the bionomic knowledge of T. rubrovaria separate batches of the species were collected from different municipalities of RS distant from 72 to 332 km: Santana do Livramento (natural ecotope), Santana do Livramento (artificial ecotope), Santiago (natural ecotope), Canguçu (peridomicile) and Encruzilhada do Sul (natural ecotope). A total of 285 specimens were collected, 85 specimens kept sufficient fecal material in their guts for the precipitin analysis. The results indicated the food eclecticism for this species and the anti-rodent serum showed the highest positivity in most localities. From the total of analyzed samples, only 1.3% of unique positivity for human blood was registered, all of them for Santiago population. This reactivity to human blood may be associated to pastures activities in the field.
URI: http://hdl.handle.net/1807/21918
Other Identifiers: http://www.bioline.org.br/abstract?id=oc02246
Rights: Copyright 2002 - Instituto Oswaldo Cruz - Fiocruz
Appears in Collections:Bioline International Legacy Collection

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