Valença M A, Marteis L S, Steffler L M, Silva A M, Santos R L C
Secretaria de Estado da Educação, Sergipe, Brasil.
Neotrop Entomol. 2013 Jun;42(3):311-6. doi: 10.1007/s13744-013-0118-4. Epub 2013 Mar 15.
The present study aimed to analyze the dynamics of containers used as breeding sites by Aedes aegypti (L.) in the city of Aracaju, SE, one of the Northeast Brazilian states. A total of three entomological surveys were performed during different precipitation levels. Breeding sites were categorized according to their function into storage, disposable containers, and reusable containers. "Mean number of pupae" and "frequency of each type of breeding site" were the criteria considered to identify key breeding sites. House index and Breteau index were calculated in each survey. A total of 3,647 water reservoirs were found, of which 220 were breeding sites, where 22,880 immature forms were identified. There were no differences in the mean number of larvae of several types of breeding sites and in the number of larvae among surveys. Larval indices showed a reduction in the second visit, but with no effect on adult occurrence when the number of pupae was considered. Key breeding sites resulted from containers used for water storage. The area studied showed conditions favorable to a new epidemic of dengue fever.
本研究旨在分析巴西东北部一州塞阿拉州阿拉卡茹市埃及伊蚊（Aedes aegypti (L.)）用作繁殖场所的容器动态。在不同降水水平期间共进行了三次昆虫学调查。繁殖场所根据其功能分为储存容器、一次性容器和可重复使用容器。“蛹的平均数量”和“每种繁殖场所类型的频率”是用于识别关键繁殖场所的标准。每次调查都计算房屋指数和布雷托指数。共发现3647个蓄水容器，其中220个为繁殖场所，在这些场所识别出22880只未成熟个体。几种繁殖场所类型的幼虫平均数量以及各次调查之间的幼虫数量均无差异。当考虑蛹的数量时，幼虫指数在第二次调查时有所下降，但对成虫出现情况没有影响。关键繁殖场所来自用于储水的容器。所研究地区显示出有利于登革热新疫情爆发的条件。
