捕食者偏好:有效生物控制设计的关键

W. Steven, Kishimbo Ombeni, E. Kweka, Merikinoi Kimirei, Cecilia Cleopa
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引用次数: 0

摘要

目的:研究亲和赤霉病对安蚊幼虫的偏好。冈比亚s.s.c。致倦库蚊和埃及伊蚊。方法:将3只拟合赤鲷放入尺寸为45cm × 25cmx 25cm的玻璃容器中。幼虫密度分别为90(30只/种)、120(40只/种)和180(60只/种)。每个密度实验设3个重复,分别在1、2、3、24 h后进行监测。没有在容器中添加鱼食喂养幼虫。结果:结果表明,埃及伊蚊在任何时期都是亲缘赤霉病蝇的首选种。在被试物种中,埃及伊蚊在不同密度和时间上的密度最大。在包括密度、种类和时间在内的混合模型中,物种间的捕食差异不显著。结论:初步结果表明,针对不同蚊种选择适宜的捕食者,可对蚊虫的生物防治产生较大的影响,大大补充了现有的生物防治工具。
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Predator preferences: a key to effective biological control design
Objetctive : This experimental study aimed to assess the preference of Gambusia affinis to mosquito larvae of An.gambiae s.s., Cx. quinquefasciatus and Aedes aegypti. Method : Three Gambusia affinis were introduced in a glass container with a dimension of 45cm x 25cmx 25cm. Three larvae densities were used, 90 (30 larvae per species), 120 (40 larvae per species), and 180 (60 larvae per species). Each density experiment was set in triplicate and monitored after 1, 2, 3, and 24 hours. No fish food was added to the container for larvae. Results : Results have shown that in all times A. aegypti has been the most preferred species by Gambusia affinis. Among the tested species, A. aegypti was most prayed with time and in different densities. In mixed models including density, species, and time there was no significant difference among the species predation. Conclusion : Preliminary results have shown that the appropriate choice of predators for each mosquito species can have a great impact on bio-control to substantially complement existing tools.
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