engleski

Spatiotemporal analysis of floodwater mosquito’s dispersal towards city of Osijek, Croatia

Cities and other human settlements in proximity of river flooding areas usually deal with floodwater mosquitoes. These species often produce very large populations of mosquitoes which rapidly infest surrounding areas. The city of Osijek is situated in eastern Croatia near the one of the biggest floodplains in Europe Kopački rit, defined by Drava and Danube, two lowland rivers. The aim of this study was determination of the source and direction of mosquito infestation. A total of 16 dry ice baited CDC traps were set up as a grid (2.5X2.5 km) in the area of Osijek. Sampling was carried out twice a month from May to September during 2012 and 2013. For the spatiotemporal analysis of distribution Gaussian covariance kriging method was used. A total number of 192, 067 mosquitoes were captured, and 15 mosquito species were determined. Investigated years differ in spatiotemporal mosquito dispersion, but source of dispersion was the same. The most abundant species were floodwater mosquitoes such as Aedes vexans (66%), Ochlerotatus caspius (14%) and Ochlerotatus sticticus (10%). Model of distribution has shown some valuable information for dispersal of the floodwater mosquitoes towards city of Osijek from its surroundings.

mosquito ; dispersal ; floodplain ; Kopački rit

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