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Title: Age-dependent survival of the dengue vector Aedes aegypti (Diptera: Culicidae) Demonstrated by Simultaneous Release-Recapture of Different Age Cohorts
Authors: Laura C. Harrington
James J. Jones
Sangvorn Kitthawee
Ratana Sithiprasasna
John D. Edman
Thomas W. Scott
Cornell University
Armed Forces Research Institute of Medical Sciences, Thailand
Mahidol University
University of California, Davis
Keywords: Agricultural and Biological Sciences;Immunology and Microbiology;Medicine;Veterinary
Issue Date: 1-Mar-2008
Citation: Journal of Medical Entomology. Vol.45, No.2 (2008), 307-313
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. © 2008 Entomological Society of America.
ISSN: 00222585
Appears in Collections:Scopus 2006-2010

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