Determining the spatial autocorrelation of dengue vector populations: Influences of mosquito sampling method, covariables, and vector control

Aishah Hani Azil, David Bruce, Craig R. Williams

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

We investigated spatial autocorrelation of female Aedes aegypti L. mosquito abundance from BG-Sentinel trap and sticky ovitrap collections in Cairns, north Queensland, Australia. BG-Sentinel trap collections in 2010 show a significant spatial autocorrelation across the study site and over a smaller spatial extent, while sticky ovitrap collections only indicate a non-significant, weak spatial autocorrelation. The BG-Sentinel trap collections were suitable for spatial interpolation using ordinary kriging and cokriging techniques. The uses of Premise Condition Index and potential breeding container data have helped improve our prediction of vector abundance. Semiovariograms and prediction maps indicate that the spatial autocorrelation of mosquito abundance determined by BG-Sentinel traps extends farther compared to sticky ovitrap collections. Based on our data, fewer BG-Sentinel traps are required to represent vector abundance at a series of houses compared to sticky ovitraps. A lack of spatial structure was observed following vector control treatment in the area. This finding has implications for the design and costs of dengue vector surveillance programs.

Original languageEnglish
Pages (from-to)153-163
Number of pages11
JournalJournal of Vector Ecology
Volume39
Issue number1
DOIs
Publication statusPublished - 2014
Externally publishedYes

Fingerprint

Spatial Analysis
dengue
vector control
Dengue
ovitraps
Culicidae
mosquito
autocorrelation
traps
sampling
Population
prediction
methodology
kriging
interpolation
Aedes aegypti
Queensland
Aedes
breeding
containers

Keywords

  • Aedes aegypti
  • BG-Sentinel trap
  • Dengue vectors
  • Kriging
  • Spatial autocorrelation
  • Sticky ovitrap
  • Surveillance

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Medicine(all)

Cite this

Determining the spatial autocorrelation of dengue vector populations : Influences of mosquito sampling method, covariables, and vector control. / Azil, Aishah Hani; Bruce, David; Williams, Craig R.

In: Journal of Vector Ecology, Vol. 39, No. 1, 2014, p. 153-163.

Research output: Contribution to journalArticle

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