Aggregation behaviour in Panstrongylus megistus and Triatoma infestans: inter and intraspecific responses

We tested the aggregation response to inter and intraspecific chemical signals in Panstrongylus megistus and Triatoma infestans. As previously described for T. infestans, larvae of P. megistus significantly aggregated on papers impregnated with their own excrement and on papers marked with cuticular...

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Bibliographic Details
Published in:Acta tropica 2002, Vol.81 (1), p.47-52
Main Authors: Pires, H.H.R, Lorenzo, M.G, Diotaiuti, L, Lazzari, C.R, Lorenzo Figueiras, A.N
Format: Article
Language:English
Subjects:
Aggregation
Animals
Behavior, Animal
Behaviour
Biological and medical sciences
Chagas disease
Communication
Disease Vectors
Feces
Fundamental and applied biological sciences. Psychology
Larva - physiology
Medically important nuisances and vectors, pests of stored products and materials: population survey and control
Panstrongylus - physiology
Pheromones
Species Specificity
Triatoma - physiology
Triatominae
Tropical medicine
Vectors. Intermediate hosts
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Summary:We tested the aggregation response to inter and intraspecific chemical signals in Panstrongylus megistus and Triatoma infestans. As previously described for T. infestans, larvae of P. megistus significantly aggregated on papers impregnated with their own excrement and on papers marked with cuticular substances deposited on surfaces on which these insects had walked. T. infestans bugs also aggregated on papers impregnated by faeces or by cuticular substances of P. megistus, and P. megistus aggregated on papers contaminated by faeces or by cuticular substances of T. infestans. The response of P. megistus to its cuticular substances was significantly stronger than that to its faeces. The non-specificity of the two signals is discussed in the context of the ecological relationship between both species.
ISSN:0001-706X
1873-6254
DOI:10.1016/S0001-706X(01)00185-1