Harrington Laura C, Jones James J, Kitthawee Sangvorn, Sithiprasasna Ratana, Edman John D, Scott Thomas W
Department of Entomology, Cornell University, Ithaca, NY 14853, USA.
J Med Entomol. 2008 Mar;45(2):307-13. doi: 10.1603/0022-2585(2008)45[307:asotdv]2.0.co;2.
The assumption that mosquito survival remains constant and that it is independent of age was tested with free-ranging Aedes aegypti (L.) (Diptera: Culicidae) by using a "synthetic cohort" mark-release-recapture method. Mosquito age cohorts (1-2, 3-4, and 19-20 d) were released simultaneously in homes in rural Thai villages during dry and rainy seasons (2002). Significant age-dependent effects were detected during the dry and rainy seasons. More young than older mosquitoes were recaptured (1-4 versus 5-20 d). The best predictive fit for recaptures was obtained using a quadratic function of age. Our results provide the first field-based evidence for age-dependent Ae. aegypti mortality in which the death rate increases with advancing age and highlight the need for research on ecological and epidemiological aspects of this process.
通过使用“合成队列”标记释放再捕获方法，对自由放养的埃及伊蚊（双翅目：蚊科）进行测试，以验证蚊子存活率保持恒定且与年龄无关这一假设。在2002年旱季和雨季期间，将蚊子年龄组（1 - 2天、3 - 4天和19 - 20天）同时释放到泰国农村村庄的家庭中。在旱季和雨季均检测到显著的年龄依赖性效应。重新捕获的年轻蚊子比老年蚊子更多（1 - 4天龄与5 - 20天龄相比）。使用年龄的二次函数获得了对重新捕获情况的最佳预测拟合。我们的结果为埃及伊蚊年龄依赖性死亡率提供了首个基于实地的证据，其中死亡率随年龄增长而增加，并强调了对这一过程的生态和流行病学方面进行研究的必要性。
