Statistical modeling of a larval mosquito population distribution and abundance in residential Brisbane

Heersink, Daniel K.; Meyers, J. Michael; Caley, Peter; Barnett, Guy; Trewin, Brendan J; Hurst, Tim; Jansen, Cassie C.

doi:10.1007/s10340-015-0680-0

Cited by 11 publications

(10 citation statements)

References 34 publications

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“…This is especially true because behavior has been found to be predictive of the prevalence and range of some mosquito-borne infections [5]. In urban neighborhoods, like the location of the current study, behaviors of particular concern center on the propensity of householders to leave containers capable of collecting water in outdoor areas, because these can provide a habitat for species like Aedes notoscriptus [6]; known vectors of RRV and BFV [7]. Further, studies by Trewin et al [7] indicated that water-hoarding behaviors associated with a warmer, drier climate led to an increase in the number of water-holding containers within residential lots of Brisbane, Australia.…”

Section: Introductionmentioning

confidence: 99%

“Looking over the Backyard Fence”: Householders and Mosquito Control

Mainali

Lamichhane

Clark

et al. 2017

IJERPH

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(1) Background: Vector-borne diseases are a significant public health problem in Western Australia. Mosquitoes are responsible for the transmission of a number of pathogens and may pose a serious nuisance problem. Prevention efforts in the State are multi-faceted and include physical, chemical, and cultural control methods for restricting mosquito breeding. This is less complex where breeding areas are located within public open spaces. In Australia’s developed urban areas, breeding sites are, however, frequently located within private residential landholdings, where the scope of public health officials to act is constrained by law and practicality. Consequently, mosquito prevention in these locations is predominantly the responsibility of the residents. This research addressed a gap, both in understanding the degree to which “backyard” mosquito breeding has the potential to contribute to local mosquito problems, and in assessing what residents “think and do” about mosquito control within their home environment. (2) Methods: The study was conducted in the Town of Bassendean, a metropolitan Local Government Area of Perth, Western Australia, in close proximity to two natural, productive mosquito breeding sites, namely Ashfield Flats and Bindaring Park. A total of 150 householders were randomly surveyed during the summer of 2015–2016, to gauge residents’ knowledge, attitudes, and practices (KAP (knowledge, attitudes, and practices) Survey) in regards to mosquitoes, their breeding and ecology, and avoidance or minimization strategies. The survey comprised nine questions covering residents’ knowledge (3 questions), attitudes (3 questions), and practices (3 questions), as well as additional questions regarding the basic demographics of the resident. Larvae were collected from backyard containers and reared to adults for species identification. A series of Encephalitis Vector Surveillance carbon dioxide (EVS CO2) traps were also deployed, to assess adult mosquito density and species composition. (3) Results: Aedes notoscriptus (Skuse), a known container-inhabiting species, accounted for just over 50% of all mosquitoes identified. Most residents were aware of mosquito-borne disease and its risk in their local area. While the majority (79%) of the sample correctly identified Ross River virus as the most common infection in WA, a significant gap in the general knowledge of residents in regards to mosquito biology and breeding habits, was noted. Furthermore, only 50% of residents reported using personal protective measures to reduce mosquito bites and only one in six residents undertook physical or chemical mosquito control around their home. Additionally, 60% of respondents believed that mosquito control was “a job for the council and the state government”, rather than for individual householders. (4) Conclusions: A significant gap in the knowledge of residents in the study area existed in regards to the general knowledge of mosquitoes and their breeding habits; types of treatments that could be employed within the home; a...

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Section: Introductionmentioning

confidence: 99%

“Looking over the Backyard Fence”: Householders and Mosquito Control

Mainali

Lamichhane

Clark

et al. 2017

IJERPH

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“…In the United States and China, it is a vector of West Nile virus (WNV) (Anonymous 2007 ; Jiang et al 2014 ). Distribution of the mosquitoes is strongly influenced by the availability of human-generated habitat similar to Aedes albopictus , a dengue virus vector (Heersink et al 2015 ), and under urban conditions population density is very high. In some Asian countries, it is a primary vector of epidemic encephalitis and Wucheraria bancrofti and Brugia malayi , the causative agents for lymphatic filariasis (Ye 1995 ; Rowland et al 1999 ).…”

Section: Introductionmentioning

confidence: 99%

Insecticide resistance and cytochrome-P450 activation in unfed and blood-fed laboratory and field populations of Culex pipiens pallens

et al. 2016

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Understanding the mechanisms of insecticide resistance to vector mosquitoes is critical for the implementation of effective control measures. A nulliparous susceptible Culex pipiens pallens (KSCP) laboratory colony and two field strains from Paju (PAJ) and Jeonju (JEO) Korea were evaluated for susceptibility to five pesticides by microapplication techniques. Unfed PAJ and JEO females demonstrated increased resistance compared to unfed KSCP females, respectively. While blood-fed KSCP females demonstrated <10-fold decreased susceptibility to pesticides compared to unfed KSCP females, blood-fed PAJ and JEO females demonstrated 25.0–50.0- and 16.0–38.6-fold increased resistance compared to unfed PAJ and JEO females, respectively. Unfed and blood-fed groups were assayed for α- and β-esterase, glutathione S-transferases, and cytochrome P-450 (P450) enzyme activity assays. P450 activity was 58.8- and 72.8-fold higher for unfed PAJ and JEO females, respectively, than unfed KSCP females. P450 enzyme activity of KSCP females assayed 1 and 7 days after a blood meal increased by 14.5- and 11.8-fold, respectively, compared to unfed KSCP females, while PAJ and JEO females demonstrated 164.9- and 148.5- and 170.7- and 160.4-fold increased activity, respectively, compared to unfed females of each population. However, other three resistance-related metabolic enzymes showed low activation at <10-fold after a blood meal. The data demonstrate that P450 acts on elevated insecticide resistance after blood meals in resistant field populations. Our findings might reveal that suppressing of the P450 protein by artificial gene mutation increases insecticidal susceptibility of Cx. pipiens and will promise effective vector mosquito control.

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“…An extensive larval survey of 4,983 premises from 2010 until 2012 likewise did not detect Ae . aegypti [ 92 ]. Contemporary surveillance efforts have not detected Ae .…”

Section: Discussionmentioning

confidence: 99%

The elimination of the dengue vector, Aedes aegypti, from Brisbane, Australia: The role of surveillance, larval habitat removal and policy

et al. 2017

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Aedes aegypti (L.) (Diptera: Culicidae) is a highly invasive mosquito whose global distribution has fluctuated dramatically over the last 100 years. In Australia the distribution of Ae. aegypti once spanned the eastern seaboard, for 3,000 km north to south. However, during the 1900s this distribution markedly reduced and the mosquito disappeared from its southern range. Numerous hypotheses have been proffered for this retraction, however quantitative evidence of the mechanisms driving the disappearance are lacking. We examine historical records during the period when Ae. aegypti disappeared from Brisbane, the largest population centre in Queensland, Australia. In particular, we focus on the targeted management of Ae. aegypti by government authorities, that led to local elimination, something rarely observed in large cities. Numerous factors are likely to be responsible including the removal of larval habitat, especially domestic rainwater tanks, in combination with increased mosquito surveillance and regulatory enforcement. This account of historical events as they pertain to the elimination of Ae. aegypti from Brisbane, will inform assessments of the risks posed by recent human responses to climate change and the reintroduction of 300,000 rainwater tanks into the State over the past decade.

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Statistical modeling of a larval mosquito population distribution and abundance in residential Brisbane

Cited by 11 publications

References 34 publications

“Looking over the Backyard Fence”: Householders and Mosquito Control

“Looking over the Backyard Fence”: Householders and Mosquito Control

Insecticide resistance and cytochrome-P450 activation in unfed and blood-fed laboratory and field populations of Culex pipiens pallens

The elimination of the dengue vector, Aedes aegypti, from Brisbane, Australia: The role of surveillance, larval habitat removal and policy

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