Estimation of Aedes aegypti (Diptera: Culicidae) population size and adult male survival in an urban area in Panama

Autor: Marco Neira, Renaud Lacroix, Lorenzo Cáceres, Paul E Kaiser, Josue Young, Lleysa Pineda, Isaac Black, Nestor Sosa, Derric Nimmo, Luke Alphey, Andrew McKemey
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Memorias do Instituto Oswaldo Cruz, Vol 109, Iss 7, Pp 879-886 (2014)
Druh dokumentu: article
ISSN: 1678-8060
0074-0276
DOI: 10.1590/0074-0276140136
Popis: Traditional mosquito control strategies rely heavily on the use of chemical insecticides. However, concerns about the efficiency of traditional control methods, environmental impact and emerging pesticide resistance have highlighted the necessity for developing innovative tools for mosquito control. Some novel strategies, including release of insects carrying a dominant lethal gene (RIDL®), rely on the sustained release of modified male mosquitoes and therefore benefit from a thorough understanding of the biology of the male of the species. In this report we present the results of a mark-release-recapture study aimed at: (i) establishing the survival in the field of laboratory-reared, wild-type male Aedes aegypti and (b) estimating the size of the local adult Ae. aegypti population. The study took place in Panama, a country where recent increases in the incidence and severity of dengue cases have prompted health authorities to evaluate alternative strategies for vector control. Results suggest a life expectancy of 2.3 days for released male mosquitoes (confidence interval: 1.78-2.86). Overall, the male mosquito population was estimated at 58 males/ha (range 12-81 males/ha), which can be extrapolated to an average of 0.64 pupae/person for the study area. The practical implications of these results are discussed.
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