Ho B C, Ewert A, Chew L M
J Med Entomol. 1989 Nov;26(6):615-23. doi: 10.1093/jmedent/26.6.615.
Interactions among the larvae of Aedes aegypti (L.), Ae. albopictus (Skuse), and Ae. triseriatus (Say) were studied in trispecific and bispecific mixed populations under laboratory and field conditions. Competitive stress (as evidenced by the average time to first, 50, and 75% pupation and the total pupation periods for mixed populations of each species in comparison with their single species controls) was more pronounced in mixed cultures reared in glass jars in the laboratory than in tires under field conditions. In the laboratory, the larval development of Ae. aegypti reared together with Ae. albopictus or Ae. triseriatus, or both, larvae was accelerated significantly. Conversely, the time to pupation for Ae. albopictus and Ae. triseriatus was delayed when reared with Ae. aegypti. However, the average wing length of female Ae. albopictus and Ae. triseriatus was greater in the mixed cultures than in single species cultures. These data indicated that the effect of intraspecific competition was greater than interspecific competition. Adequate food and higher temperature appeared to promote rapid development and higher survival of the immature stages of the three Aedes species in tires placed in the field. In general, Ae. triseriatus larvae required a longer period for larval development and had greater larval mortality than either Ae. aegypti or Ae. albopictus. In mixed populations of Ae, albopictus and Ae. aegypti in the jars and food-rich tires, the periods needed to attain first, 50, and 75% cumulative pupation were not significantly different than in single species controls. We conclude that no clear-cut displacement occurred in mixed experimental populations of Ae. aegypti and Ae. albopictus.
在实验室和野外条件下,对埃及伊蚊(Aedes aegypti (L.))、白纹伊蚊(Ae. albopictus (Skuse))和三带喙库蚊(Ae. triseriatus (Say))幼虫在三物种和双物种混合种群中的相互作用进行了研究。与单物种对照组相比,实验室玻璃罐中饲养的混合培养物中的竞争压力(以每种物种混合种群首次化蛹、50%和75%化蛹的平均时间以及总化蛹期为证据)比野外轮胎中的更为明显。在实验室中,与白纹伊蚊或三带喙库蚊或两者的幼虫一起饲养时,埃及伊蚊幼虫的发育显著加速。相反,与埃及伊蚊一起饲养时,白纹伊蚊和三带喙库蚊的化蛹时间延迟。然而,混合培养物中白纹伊蚊和三带喙库蚊雌蚊的平均翅长比单物种培养物中的更大。这些数据表明,种内竞争的影响大于种间竞争。充足的食物和较高的温度似乎促进了野外放置的轮胎中三种伊蚊未成熟阶段的快速发育和更高的存活率。一般来说,三带喙库蚊幼虫的幼虫发育需要更长的时间,并且幼虫死亡率比埃及伊蚊或白纹伊蚊更高。在玻璃罐和食物丰富的轮胎中白纹伊蚊和埃及伊蚊的混合种群中,达到首次、50%和75%累积化蛹所需的时间与单物种对照组没有显著差异。我们得出结论,在埃及伊蚊和白纹伊蚊的混合实验种群中没有发生明显的取代现象。