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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 103, No. 8, 2008, pp. 824-830
Bioline Code: oc08148
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 103, No. 8, 2008, pp. 824-830

 en Ecological Aspects of Rhodnius Nasutus check for this species in other resources Stål, 1859 (Hemiptera: Reduviidae: Triatominae) in Palms of the Chapada do Araripe in Ceará, Brazil
Dias, Fernando Braga Stehling; Bezerra, Cláudia Mendonça; Machado, Evandro Marques de Menezes; Casanova, Cláudio & Diotaiuti, Liléia

Abstract

The aim of this work is to present aspects related to the ecology of Rhodnius nasutus check for this species in other resources Stål, 1859 in palms from Chapada do Araripe in Ceará, Brazil. The following five species of palms were investigated: babaçu ( Attalea speciosa check for this species in other resources ), buriti ( Mauritia flexuosa check for this species in other resources ), carnaúba ( Copernicia prunifera check for this species in other resources ), catolé ( Syagrus oleracea check for this species in other resources ) and macaúba-barriguda ( Acrocomia intumescens check for this species in other resources ). Fifth palms were dissected (10 specimens for each species). The overall infestation index was 86%, with a total of 521 triatomines collected. The Trypanosoma cruzi check for this species in other resources Chagas, 1909 Index was 16.8% and two insects presented mixed infection with Trypanosoma rangeli check for this species in other resources Tejera, 1920. A precipitin test showed that R. nasutus from palms of Chapada do Araripe are associated with opossum and bird although other possible bloodmeals were observed. Our results showing a high index of infestation of the palms as well as T. cruzi infection, the association of R. nasutus with the most diverse species of palms and proximity of these palms to houses demonstrate the importance of this area for sylvatic T. cruzi transmission and suggest the need for epidemiological surveillance in the region of the Chapada do Araripe.

Keywords
Rhodnius nasutus - palms - Chapada do Araripe - Brazil

 
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