A comparison of adult mosquito trapping regimes across seasons and ecosystems in Darwin, Australia

Susan Jacups, Peter I Whelan

    Research output: Contribution to journalArticleResearchpeer-review

    Abstract

    Mosquitoes are problematic as vectors and pests in many tropical cities, including Darwin, the principal city in the Northern Territory of Australia. To monitor peaks in mosquito populations, the Medical Entomology unit of the Health Department sets overnight CO2-baited traps weekly. Trap setting and retrieving, followed by mosquito counting and identification, are labor intensive. Aiming to reduce this workload, we tested the hypothesis that fortnightly trapping is as effective as weekly trapping across seasons and ecologically distinct systems in Darwin. We applied cross-sectional negative binomial mixed effects models, which adjusted for rain and calendar month, to existing historical data. Culex annulirostris peaks were effectively identified using fortnightly trapping across all three ecological systems, during wet/dry and build-up seasonal patterns. For Aedes vigilax, fortnightly trapping was adequate in identifying peaks during wet and dry season months, but inadequate during build-up months across all three ecological systems. Therefore, weekly trapping should continue during build-up months, but trapping could be reduced to fortnightly for wet and dry season months for all ecological systems. Trapping for Cx. annulirostris monitoring could be reduced to fortnightly in all areas and seasons. Evaluation of programs can maximize staff efficiency and improve service delivery by reducing the need for unnecessary tasks.
    Original languageEnglish
    Pages (from-to)284-288
    Number of pages5
    JournalJournal of Vector Ecology
    Volume37
    Issue number2
    DOIs
    Publication statusPublished - Dec 2012

    Fingerprint

    mosquito
    trapping
    Culicidae
    ecosystems
    ecosystem
    wet season
    dry season
    medical entomology
    Aedes vigilax
    traps
    Culex annulirostris
    program evaluation
    entomology
    Northern Territory
    monitoring
    comparison
    labor
    seasonal variation
    pests
    rain

    Cite this

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    title = "A comparison of adult mosquito trapping regimes across seasons and ecosystems in Darwin, Australia",
    abstract = "Mosquitoes are problematic as vectors and pests in many tropical cities, including Darwin, the principal city in the Northern Territory of Australia. To monitor peaks in mosquito populations, the Medical Entomology unit of the Health Department sets overnight CO2-baited traps weekly. Trap setting and retrieving, followed by mosquito counting and identification, are labor intensive. Aiming to reduce this workload, we tested the hypothesis that fortnightly trapping is as effective as weekly trapping across seasons and ecologically distinct systems in Darwin. We applied cross-sectional negative binomial mixed effects models, which adjusted for rain and calendar month, to existing historical data. Culex annulirostris peaks were effectively identified using fortnightly trapping across all three ecological systems, during wet/dry and build-up seasonal patterns. For Aedes vigilax, fortnightly trapping was adequate in identifying peaks during wet and dry season months, but inadequate during build-up months across all three ecological systems. Therefore, weekly trapping should continue during build-up months, but trapping could be reduced to fortnightly for wet and dry season months for all ecological systems. Trapping for Cx. annulirostris monitoring could be reduced to fortnightly in all areas and seasons. Evaluation of programs can maximize staff efficiency and improve service delivery by reducing the need for unnecessary tasks.",
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    A comparison of adult mosquito trapping regimes across seasons and ecosystems in Darwin, Australia. / Jacups, Susan; Whelan, Peter I.

    In: Journal of Vector Ecology, Vol. 37, No. 2, 12.2012, p. 284-288.

    Research output: Contribution to journalArticleResearchpeer-review

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