Urban Landscape Features Influence the Movement and Distribution of the Australian Container-Inhabiting Mosquito Vectors Aedes aegypti (Diptera: Culicidae) and Aedes notoscriptus (Diptera: Culicidae)

Urban landscape features play an important role in the distribution and population spread of mosquito vectors. Furthermore, current insecticide and novel rear-and-release strategies for urban mosquito management rarely consider the spatial structure of the landscape when applying control practices....

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Bibliographic Details
Published in:Journal of medical entomology 2020-02, Vol.57 (2), p.443-453
Main Authors: Trewin, Brendan J., Pagendam, Daniel E., Zalucki, Myron P., Darbro, Jonathan M., Devine, Gregor J., Jansen, Cassie C., Schellhorn, Nancy A.
Format: Article
Language:English
Subjects:
Aedes - physiology
Aedes aegypti
Aedes notoscriptus
Animal Distribution
Animals
Cities
Containers
Culicidae
Diptera
dispersal
Environment
Female
Insect control
Insecticides
isotropic kernel
Male
mark recapture
Mosquito Control
Mosquito Vectors - physiology
Mosquitoes
Movement
movement barrier
Oviposition
Queensland
Rain water
rainwater tank
Roads
SAMPLING, DISTRIBUTION, DISPERSAL
Species Specificity
Storage containers
Storage tanks
Urban areas
Urban environments
Vectors
Water storage
Water tanks
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Summary:Urban landscape features play an important role in the distribution and population spread of mosquito vectors. Furthermore, current insecticide and novel rear-and-release strategies for urban mosquito management rarely consider the spatial structure of the landscape when applying control practices. Here, we undertake a mark-recapture experiment to examine how urban features influence the movement and distribution of Australian container-inhabiting Aedes vectors. We pay attention to the role of semipermanent water storage containers, called rainwater tanks, and the influence of movement barriers, such as roads, on the spread and distribution of vector populations. Results suggest that Aedes aegypti (Linnaeus) (Diptera: Culicidae) were more likely to be captured around rainwater tanks, and that released males travel throughout residential blocks but do not cross roads. Conversely, female Aedes notoscriptus (Skuse) (Diptera: Culicidae) movement was uninhibited by roads and rainwater tanks did not influence female distribution or oviposition behavior. Using an isotropic Gaussian kernel framework, we show that vector movement is likely to be greater when applying a temporal effect, than when estimated by traditional methods. We conclude that a greater understanding on the role of urban features on vector movement will be important in the new age of rear-and-release mosquito control strategies, particularly those where estimations of movement are important for ensuring efficacy of application.
ISSN:0022-2585
1938-2928
DOI:10.1093/jme/tjz187