ORCID Profile
0000-0002-3162-9368
Current Organisation
SeedPurity
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Publisher: Public Library of Science (PLoS)
Date: 11-11-2015
Publisher: Springer Science and Business Media LLC
Date: 30-05-2013
Publisher: Wiley
Date: 20-02-2020
DOI: 10.1111/MVE.12433
Abstract: Saltmarsh breeding mosquitoes are an important source of vectors for arboviral transmission. In southern Australia, the most prominent vector borne disease, Ross River virus (Togaviridae: Alphavirus ) (RRV), is transmitted by the saltmarsh mosquito (Diptera: Culicidae) Aedes c torhynchus (Thomson). However, the factors driving the abundance of this mosquito within and among saltmarshes are poorly understood. To predict the abundance of this mosquito within saltmarshes, the environmental conditions and aquatic invertebrate ecology of three temperate saltmarshes habitats were monitored over two seasons. Up to 44% of first‐instar mosquito numbers and 21% of pupal numbers were accounted for by environmental variables. S hire vegetation cover was a common predictor of first‐instar numbers across sites although, between saltmarshes, aquatic factors such as high salinity, temperatures less than 22 °C and water body volume were important predictors. The identified predictors of pupal numbers were more variable and included high tides, waterbody volume and alkalinity. The composition of invertebrate functional feeding groups differed between saltmarshes and showed that an increased ersity led to fewer mosquitoes. It was evident that apparently similar saltmarshes can vary markedly in invertebrate assemblages, water availability and conditions through tidal inundations, rainfall or waterbody permanency. The present study advances insight into predictors of vector mosquito numbers that drive the risk of RRV outbreaks.
Publisher: Society for Vector Ecology
Date: 15-05-2017
DOI: 10.1111/JVEC.12251
Abstract: Two saltmarsh mosquitoes dominate the transmission of Ross River virus (RRV, Togoviridae: Alphavirus), one of Australia's most prominent mosquito-borne diseases. Ecologically, saltmarshes vary in their structure, including habitat types, hydrological regimes, and ersity of aquatic fauna, all of which drive mosquito oviposition behavior. Understanding the distribution of vector mosquitoes within saltmarshes can inform early warning systems, surveillance, and management of vector populations. The aim of this study was to identify the distribution of Ae. c torhynchus, a known vector for RRV, across a saltmarsh and investigate the influence that other invertebrate assemblage might have on Ae. c torhynchus egg dispersal. We demonstrate that vegetation is a strong indicator for Ae. c torhynchus egg distribution, and this was not correlated with elevation or other invertebrates located at this saltmarsh. Also, habitats within this marsh are less frequently inundated, resulting in dryer conditions. We conclude that this information can be applied in vector surveillance and monitoring of temperate saltmarsh environments and also provides a baseline for future investigations into understanding mosquito vector habitat requirements.
Publisher: Informa UK Limited
Date: 26-03-2015
No related grants have been discovered for Raylea Rowbottom.