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Insects 2014, 5(4), 984-990; doi:10.3390/insects5040984

Comparing Aedes vigilax Eggshell Densities in Saltmarsh and Mangrove Systems with Implications for Management

1
Environmental Futures Research Institute, Griffith University, Nathan Queensland 4111, Australia
2
Australian Rivers Institute, Griffith University, Nathan Queensland 4111, Australia
3
Griffith School of Environment, Griffith University, Nathan Queensland 4111, Australia
*
Author to whom correspondence should be addressed.
Received: 16 October 2014 / Revised: 5 November 2014 / Accepted: 3 December 2014 / Published: 12 December 2014
(This article belongs to the Special Issue Mosquito Control)
View Full-Text   |   Download PDF [66 KB, uploaded 12 December 2014]

Abstract

Aedes vigilax (Skuse), a nuisance and disease vector, is prolific in intertidal wetlands in Australia. Aedine mosquitoes oviposit directly onto substrate. The eggshells are relatively stable spatially and temporally, providing an estimate of mosquito larval production. The aims of the research were to compare, at a general level, oviposition in mangroves and saltmarshes, and to compare oviposition between different habitats within mangroves and saltmarshes. The results indicated that there were no significant differences between production in mangrove and saltmarsh overall. However, within each system there were significant differences between habitat classes, with mangrove hummocks being the most productive. All classes, except for fringing mangrove forests, produced sufficient densities of eggshells (>0.05/cc) to warrant concern. While mosquito production in mangroves is known, the significantly higher production rates in the mangrove hummock habitats had not been demonstrated. This warrants improved management strategies that both specifically target these parts of mangrove systems and, secondly, addresses the longer-term potential for mangrove hummock habitats developing in the future; such as, in response to sea level rise and mangrove encroachment into saltmarsh. A strategy to increase tidal flushing within the systems would improve water quality and mitigate adverse impacts while providing a source reduction outcome. View Full-Text
Keywords: Aedes vigilax; eggshells; mosquito management; mangrove; saltmarsh Aedes vigilax; eggshells; mosquito management; mangrove; saltmarsh
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Dale, P.; Knight, J.; Griffin, L. Comparing Aedes vigilax Eggshell Densities in Saltmarsh and Mangrove Systems with Implications for Management. Insects 2014, 5, 984-990.

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