Abstract
In 2017, the southeastern USA and Caribbean endured an extremely active year for tropical storm and hurricane activity. On September 10, 2017, Hurricane Irma made a 2nd landfall in Florida, striking Collier County-including Naples and Marco Island, FL. Areas affected by Hurricane Irma are abundant in salt-marsh and mangrove swamps, prime habitats for the black salt-marsh mosquito, Aedes taeniorhynchus. Using both human landing rate and Biogents BG-Counter trap data, here we report the year-to-year fluctuations in population density of Ae. taeniorhynchus. In 2017, Collier County experienced a population explosion of Ae. taeniorhynchus, with daily landing rates reaching as high as 150 adult females/2-min period. The following year a dramatic population crash of Ae. taeniorhynchus was observed, representing some of the lowest Ae. taeniorhynchus numbers ever recorded in Collier County. Analysis of human landing rate and trap data following major hurricane strikes, including Hurricane Irma (2017) and Hurricane Wilma (2005), have revealed severe reductions in Ae. taeniorhynchus populations. Because Ae. taeniorhynchus accounts for a large majority of adulticiding missions in the state of Florida, an enhanced understanding of the factors contributing to Ae. taeniorhynchus population dynamics may allow for improved operational planning and decision-making.
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