Abstract
Background and Objectives: Knowledge about the movement of adult mosquito vectors in endemic and epidemic areas is valuable for understanding disease transmission dynamics providing a phenomenon of the behaviour, biology, demography, ethology and patterns of disease transmission. Methods: With this respect, the dispersal range of Ae. aegypti and Ae. albopictus had been conducted based on mark-release-recapture method in the campus periphery of Dayanand Anglo Vedic Post Graduate College, Dehradun, Uttarakhand, in the month of June 2015. Results: Aedes recaptured from various distances consist of 21.21% within 20 m, 45.45% within 50 m and 72.72% within 80 m distance from the release point. However, mean dispersion distances of Ae. aegypti and Ae. albopictus were found to be 31.78 m and 97.36 m respectively. The R2 value was found higher in case of Ae. aegypti (0.6795) than Ae. albopictus (0.3597), indicating that Ae. albopictus dispersed more than Ae. aegypti. Using the non-parametric test, Mann-Whitney test for two independent samples, the results showed there is no significant difference (p ≤0.05) of flight range of the two species (z=−0.7181, p=0.47152 ). Interpretation and Conclusion: Less recapture rate of male than female justified the fact that mosquitoes will be forced to fly greater distances than they normally would if released at a point distance from any of the enumerated ovipositing items. From the present study, it was suggested that adulticiding should be intensified up to 100 m in and around the periphery of the reported dengue incidences for a week. Busy roads or unshaded areas may serve as barriers to movement of Aedes species and thus water holding containers should be targeted for more intensive adulticiding.
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