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dc.contributor.authorDe Little, Siobhan Cen
dc.contributor.authorBowman, David MJSen
dc.contributor.authorWhelan, Peter Ien
dc.contributor.authorBrook, Barry Wen
dc.contributor.authorBradshaw, Corey Jen
dc.description.abstractUnderstanding the contribution of environmental variation and density feedback are essential for designing effective vector control. Monitoring datasets describing relative larval densities over 7 years of the two dominant mosquito species, Aedes vigilax (Skuse) and Culex annulirostris (Skuse), found in the greater Darwin area, Northern Territory, Australia, were analysed using generalised linear modelling and linear mixed-effects modelling to discover the environmental determinants of spatio-temporal patterns in relative abundance. The most important spatial drivers of Ae. vigilax and Cx. annulirostris larval densities were elevation above sea level and water presence. Ae. vigilax density was negatively correlated with elevation, whereas there was a positive relationship between Cx. annulirostris density and elevation. This result demonstrates how larval habitats used by the salt-water influenced breeder Ae. vigilax and the obligate fresh-water breeder Cx. annulirostris are separated in a tidally influenced swamp. The models examining temporal drivers of larval density also identified this discrimination between freshwater and saltwater habitats. Ae. vigilax larval densities exhibited positive relationships with maximum tide heights and high tide frequencies, whereas the Cx. annulirostris larval densities were positively related to elevation above sea level and rainfall. The most important temporal driver of the larval densities in both species was adult numbers from the previous month, providing a clear dynamical link between the two main life phases in mosquito development. This study demonstrates the importance of considering both spatial and temporal drivers, and intrinsic population dynamics, when planning vector control strategies, to reduce larval density, adult population density, and disease transmission effectively.en
dc.publisherEnvironmental Entomologyen
dc.relation.ispartofseriesEnvironmental Entomologyen
dc.relation.ispartofseriesVol. 38, No. 4en
dc.subjectVector controlen
dc.subjectRoss River virus infectionsen
dc.titleQuantifying the drivers of larval density patterns in two tropical mosquito species to maximize control efficiencyen
dc.relation.incollectionDept of Health Digital Libraryen
dc.identifier.sourceHealth Protection Divisionen
Appears in Collections:Dept of Health Digital Library

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