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1 March 2008 Age-Dependent Survival of the Dengue Vector Aedes aegypti (Diptera: Culicidae) Demonstrated by Simultaneous Release–Recapture of Different Age Cohorts
Laura C. Harrington
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Abstract

The assumption that mosquito survival remains constant and that it is independent of age was tested with free-ranging Aedes aegypti (L.) (Diptera: Culicidae) by using a “synthetic cohort” mark–release–recapture method. Mosquito age cohorts (1–2, 3–4, and 19–20 d) were released simultaneously in homes in rural Thai villages during dry and rainy seasons (2002). Significant age-dependent effects were detected during the dry and rainy seasons. More young than older mosquitoes were recaptured (1–4 versus 5–20 d). The best predictive fit for recaptures was obtained using a quadratic function of age. Our results provide the first field-based evidence for age-dependent Ae. aegypti mortality in which the death rate increases with advancing age and highlight the need for research on ecological and epidemiological aspects of this process.

Laura C. Harrington "Age-Dependent Survival of the Dengue Vector Aedes aegypti (Diptera: Culicidae) Demonstrated by Simultaneous Release–Recapture of Different Age Cohorts," Journal of Medical Entomology 45(2), 307-313, (1 March 2008). https://doi.org/10.1603/0022-2585(2008)45[307:ASOTDV]2.0.CO;2
Received: 16 June 2007; Accepted: 24 November 2007; Published: 1 March 2008
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