The use of aggregation signals by Triatoma brasiliensis (Heteroptera: Reduviidae).
Acta Trop
; 101(2): 147-52, 2007 Feb.
Article
em En
| MEDLINE
| ID: mdl-17306752
Triatoma brasiliensis is considered the main vector of Chagas disease in the semiarid zones of North-eastern Brazil. In this work, we describe the spatial pattern of defecation in T. brasiliensis and the spatial relationship of faeces with the shelters of these bugs. Afterwards, we analyse the attraction response of T. brasiliensis larvae to potential odour cues present in their dry faeces, to substances present in their cuticule (footprints) and to the dry faeces of Triatoma pseudomaculata. We show that faecal spots are deposited in a larger density inside the shelter than in the remaining area available for the bugs. T. brasiliensis larvae were significantly attracted towards their own faeces, and also to those of T. pseudomaculata. In contrast to other triatomine species, footprints did not promote attraction in T. brasiliensis. The potential use of communication signals of T. brasiliensis as tools for helping control this species is discussed.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Triatoma
/
Comunicação Animal
/
Insetos Vetores
Limite:
Animals
País/Região como assunto:
America do sul
/
Brasil
Idioma:
En
Revista:
Acta Trop
Ano de publicação:
2007
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Holanda