Pasteur Institute-Cenci Bolognetti Foundation, University of Rome Sapienza, Italy.
Am J Trop Med Hyg. 2012 Apr;86(4):665-76. doi: 10.4269/ajtmh.2012.11-0513.
Most Aedes aegypti dispersal studies have focused on females because of their central role in dengue virus transmission. Only a few mark-release-recapture (MRR) studies provided insights into male Ae. aegypti dispersal. To fill this knowledge gap, we conducted five male Ae. aegypti MRR experiments in a coastal village in southern Mexico. Small and large male cohorts were marked with fluorescent dusts, released outside buildings, and recaptures were carried out by using backpack aspirators. Recapture rates ranged between 0.35% and 6.55% and median distance traveled was 12-166 meters. A statistically significant difference in median distance traveled with large males dispersing farther than small ones was detected only in one experiment (MRR5: U = 3.5, P < 0.01). Male dispersal data will be useful for constructing and estimating parameter values and validating models that will be used to plan the most effective release strategies for genetically modified male Ae. aegypti.
大多数埃及伊蚊扩散研究都集中在雌性上,因为它们在登革热病毒传播中起着核心作用。只有少数标记-释放-回收(MRR)研究提供了对雄性埃及伊蚊扩散的见解。为了填补这一知识空白,我们在墨西哥南部的一个沿海村庄进行了五次雄性埃及伊蚊 MRR 实验。小和大的雄性蚊群用荧光粉尘标记,在建筑物外释放,并使用背包式吸虫器进行回收。回收率在 0.35%至 6.55%之间,平均移动距离为 12-166 米。仅在一项实验中(MRR5:U = 3.5,P < 0.01),大雄性的平均移动距离明显大于小雄性。雄性扩散数据将有助于构建和估计参数值,并验证模型,这些模型将用于规划最有效的释放策略,以释放经过基因改造的雄性埃及伊蚊。