Investigating male Aedes aegypti (Diptera: Culicidae) attraction to different oviposition containers using various configurations of the sound gravid Aedes trap

Staunton, Kyran M., Rohde, Barukh B., Townsend, Michael, Liu, Jianyi, Desnoyer, Mark, Howell, Paul, Amos, Brogan, Crawford, Jacob, Snoad, Nigel, and Ritchie, Scott A. (2020) Investigating male Aedes aegypti (Diptera: Culicidae) attraction to different oviposition containers using various configurations of the sound gravid Aedes trap. Journal of Medical Entomology. (In Press)

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View at Publisher Website: https://doi.org/10.1093/jme/tjz229
 
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Abstract

Aedes aegypti (Linnaeus), the primary vectors of the arboviruses dengue virus and Zika virus, continue to expand their global distributions. In efforts to better control such species, several mosquito control programs are investigating the efficacy of rearing and releasing millions of altered male Aedes throughout landscapes to reduce populations and disease transmission risk. Unfortunately, little is known about Ae. aegypti, especially male, dispersal behaviors within urban habitats. We deployed Sound-producing Gravid Aedes Traps (SGATs) in Cairns, northern Australia, to investigate male Ae. aegypti attraction to various oviposition container configurations. The traps were arranged to include: 1) water only, 2) organically infused water, 3) infused water and L3 larvae, 4) infused water and a human-scented lure, and lastly 5) no water or olfactory attractant (dry). Our data suggest that males were more attracted to SGATs representing active larval sites than potential larval sites, but were equally attracted to dry SGATs relative to those containing water and/or infusion. Additionally, we found that female Ae. aegypti were equally attracted to wet SGATs, with or without infusion, but not dry ones. These results suggest that male Ae. aegypti within northern Australia are more attracted to active larval sites and equally attracted to dry containers as wet or infused ones. Additionally, female Ae. aegypti are unlikely to enter dry containers. Such findings contribute to our understanding of potentially attractive features for local and released Ae. aegypti throughout the northern Australian urban landscape.

Item ID: 61311
Item Type: Article (Research - C1)
ISSN: 1938-2928
Keywords: male Aedes aegypti, Gravid Aedes Trap, oviposition site, sterile insect release, Wolbachia, dengue
Funders: Verily Life Sciences, National Health and Medical Research Council (NHMRC), National Science Foundation Graduate Research Fellowship Program (NSF), Graduate Research Opportunities Worldwide (GROW)
Projects and Grants: NSF Grant No. DGE-1315138, NSF Grant No. DGE-1842473
Date Deposited: 29 Jan 2020 01:42
FoR Codes: 11 MEDICAL AND HEALTH SCIENCES > 1117 Public Health and Health Services > 111799 Public Health and Health Services not elsewhere classified @ 100%
SEO Codes: 92 HEALTH > 9204 Public Health (excl. Specific Population Health) > 920499 Public Health (excl. Specific Population Health) not elsewhere classified @ 100%
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