Dispersal of Aedes aegypti: field study in temperate areas and statistical approach

BERGERO, P; RUGGIERO, C; LOMBARDO, R; SCHWEIGMANN, N.; H G SOLARI

JOURNAL OF VECTOR BORNE DISEASES

MALARIA RESEARCH CENTRE

Año: 2013

0972-9062

    We studied the dispersion of Aedes aegypti during egg laying in naturalconditions. Two independent experiment involving mosquitoes dispersingfrom urbanization towards adjacent un-urbanized areas were carried outand analyzed in statistical terms. We nd relations between stochasticvariables related to the egg laying mosquito activity (ELMA), useful toasses dispersion probabilities, despite the lack of knowledge of the totalnumber of ovipositions in the zone. We propose to evaluate the activityas minus the logarithm of the fraction of negative ovitraps at dierentdistances from buildings. We also estimate the average number of eggslaid per oviposition using a regression between the ELMA and the num-ber of eggs found. Three zones with dierent oviposition activity weredetermined, a corridor surrounding the urbanized area, a second regionbetween 10m and 25m and the third region extending from 30m to 45mfrom the urbanization. The landscape (plant cover) and the human ac-tivity in the area appear to have an inuence in the dispersal of Aedesaegypti.