School of Public Health and Tropical Medicine and Rehabilitative Sciences, James Cook University, P.O. Box 1103 Cairns, Queensland 4870, Australia.
J Med Entomol. 2013 May;50(3):624-31. doi: 10.1603/me12201.
The size of Aedes aegypti (L.) mosquito populations and adult survival rates have proven difficult to estimate because of a lack of consistent quantitative measures to equate sampling methods, such as adult trapping, to actual population size. However, such estimates are critical for devising control methods and for modeling the transmission of dengue and other infectious agents carried by this species. Here we take advantage of recent releases of Wolbachia-infected Ae. aegypti coupled with the results of ongoing monitoring to estimate the size of adult Ae. aegypti populations around Cairns in far north Queensland, Australia. Based on the association between released adults infected with Wolbachia and data from Biogents Sentinel traps, we show that data from two locations are consistent with population estimates of approximately 5-10 females per house and daily survival rates of 0.7-0.9 for the released Wolbachia-infected females. Moreover, we estimate that networks of Biogents Sentinel traps at a density of one per 15 houses capture around 5-10% of the adult population per week, and provide a rapid estimate of the absolute population size of Ae. aegypti. These data are discussed with respect to release rates and monitoring in future Wolbachia releases and also the levels of suppression required to reduce dengue transmission.
埃及伊蚊（Aedes aegypti）蚊种群的大小和成虫存活率很难估计，因为缺乏一致的定量措施来将采样方法（如成虫诱捕）与实际种群大小等同起来。然而，这些估计对于制定控制方法和模拟登革热和该物种携带的其他传染病原体的传播至关重要。在这里，我们利用最近释放的感染沃尔巴克氏体的埃及伊蚊，并结合正在进行的监测结果，估计澳大利亚昆士兰州北部远北地区凯恩斯周围埃及伊蚊成虫种群的大小。基于感染沃尔巴克氏体的释放成虫与 Biogents 哨兵诱捕器数据之间的关联，我们表明，来自两个地点的数据与每间房屋约有 5-10 只雌性的种群估计以及释放的感染沃尔巴克氏体的雌性每日存活率为 0.7-0.9 是一致的。此外，我们估计，每 15 间房屋密度为 1 个的 Biogents 哨兵诱捕器网络每周捕获约 5-10%的成虫种群，提供了埃及伊蚊成虫种群绝对大小的快速估计。这些数据是根据未来沃尔巴克氏体释放的释放率和监测以及减少登革热传播所需的抑制水平进行讨论的。
