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- W57723740 abstract "In pursuit of effective control strategies against Leishmania chagasi and AmericanVisceral Leishmaniasis, we investigated the ecology of Lutzomyia longipalpis in a series oflaboratory and field experiments in Amazonian Brazil.In Chapter II, we show that bloodfeeding success in peridomestic animal pens wasdependent on the density of females feeding at the host. As the density of biting fliesincreased, hosts became more agitated, and bloodfeeding was interrupted. However, fliesdid not appear to distribute themselves between the available peridomestic hosts tominimise these costs.In Chapter III, we infer from the results of mark-recapture experiments thatpheromone-mediated attraction and arrest was the principal determinant of fly abundancein sheds. Males are also found to aggregate preferentially to the site of the previous night'sactivity. We use these results to explain the sub-optimal distribution of Chapter II.In Chapter IV, we find that residual insecticide spraying caused a dramaticdecrease in fly abundance in animal pens only when neighbouring aggregation sitesremained untreated. Bringing together evidence from changes in Lu.longipalpis sex ratio,abundance of the different female Lu.longipalpis gonostates and abundance of otherphlebotomine species, we argue that by disrupting pheromone production, the principaleffect of spraying in this study was to stimulate the formation of aggregations at untreatedand previously under-exploited sites, such as dining-huts, rather than the required masskilling.Finally, in Chapter V we report on laboratory feeding experiments that providesome evidence that digestion-mediated killing of parasites in the sandfly gut may becommon to many types of animal blood.In conclusion, we suggest that unless blanket spraying achieves close to 100%coverage, in the absence of a synthetic pheromone bait the best approach to disease controlwould be the selective treatment of susceptible host sites." @default.
- W57723740 created "2016-06-24" @default.
- W57723740 creator A5028331977 @default.
- W57723740 date "1995-01-01" @default.
- W57723740 modified "2023-09-24" @default.
- W57723740 title "Behaviour and ecology of the sandfly 'Lutzomyia longipalpis' in Amazonian Brazil." @default.
- W57723740 doi "https://doi.org/10.17037/pubs.01544170" @default.
- W57723740 hasPublicationYear "1995" @default.
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