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Mathematical modelling of mosquito dispersal in a heterogeneous environment

Lutambi, A. M. and Penny, M. A. and Smith, T. and Chitnis, N.. (2013) Mathematical modelling of mosquito dispersal in a heterogeneous environment. Mathematical biosciences : an international journal, Vol. 241, H. 2. pp. 198-216.

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Official URL: http://edoc.unibas.ch/dok/A6094276

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Abstract

Mosquito dispersal is a key behavioural factor that affects the persistence and resurgence of several vector-borne diseases. Spatial heterogeneity of mosquito resources, such as hosts and breeding sites, affects mosquito dispersal behaviour and consequently affects mosquito population structures, human exposure to vectors, and the ability to control disease transmission. In this paper, we develop and simulate a discrete-space continuous-time mathematical model to investigate the impact of dispersal and heterogeneous distribution of resources on the distribution and dynamics of mosquito populations. We build an ordinary differential equation model of the mosquito life cycle and replicate it across a hexagonal grid (multi-patch system) that represents two-dimensional space. We use the model to estimate mosquito dispersal distances and to evaluate the effect of spatial repellents as a vector control strategy. We find evidence of association between heterogeneity, dispersal, spatial distribution of resources, and mosquito population dynamics. Random distribution of repellents reduces the distance moved by mosquitoes, offering a promising strategy for disease control.
Faculties and Departments:09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH) > Department of Epidemiology and Public Health (EPH) > Household Economics and Health Systems Research
UniBasel Contributors:Smith, Thomas A. and Chitnis, Nakul
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:American Elsevier
ISSN:0025-5564
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:16 Aug 2013 07:35
Deposited On:16 Aug 2013 07:34

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