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J Med Entomol. 2014 Jul;51(4):760-8.

Seasonal and spatial oviposition activity of Aedes albopictus (Diptera: Culicidae) in Adriatic Croatia.


Seasonal and spatial ovipositional activity of Aedes albopictus (Skuse, 1894) was investigated in Split, South Croatia. During 2009 and 2010, 35 oviposition traps were used in this research. For studying oviposition behavior, mean egg density and Lloyd's mean crowding were used to define the dispersion of eggs into ovitraps and, together with Taylor's power law, to show aggregation degree. To show monthly distribution of egg density, Kriging interpolation was used. Oviposition activity started in April (week 13) and was completed at the beginning December (week 48). Mean egg density reaches the highest values from June to early September (week 25-35). Slope of regressions (mean crowding on mean density and log variance and log mean density) indicated a clumped distribution of eggs. Sampling sites were divided in four groups based on quartiles of median and maximum of mean density. There was no significant difference in measured abiotic factors (temperature, humidity, and rainfall) and measured mean egg density, total amount of eggs, and percentage of positive ovitraps between investigated years, except in mean egg density in some localities.

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