Egg hatching of mosquitoes Aedes caspius and Ae. vittatus stimulated by water vibrations
Egg hatching of mosquitoes Aedes caspius and Ae. vittatus stimulated by water vibrations
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DOI：
10.1046/j.0269-283x.2001.00303.x
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发表时间：
2001-06-01
影响因子：
1.9
通讯作者：
Roberts, DM
中科院分区：
文献类型：
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作者：
Roberts, DM
对野生捕获的白纹伊蚊 (Pallas) 和斑纹伊蚊 (Bigot) 蚊子（双翅目、蚊科）的卵进行的简单实验室实验表明，由于指尖敲击水下卵的容器而引起的水振动，卵的孵化率（即每日孵化百分比）显着增加。当每天仅受到振动干扰 30 秒时，卵的孵化速度比保持淹没或定期排水和重新淹没而不搅拌时更快。对于自生Ae。对于来自盐沼的卡斯皮乌斯，50 个卵组成的群体的卵孵化率比单个卵高出三到四倍，这可能是由于其他卵或幼虫散发出的化学物质（功能性利它素）所致。对于自体 Ae。每天轻敲容器（8 小时内，每 2 小时 30 秒）孵化出 93% 的卵，相比之下，只有 42% 的卵仅在第一次淹没时才孵化，或者 55% 的卵在 17 天内干燥并重新淹没 3 次而没有其他干扰时孵化。结论是。与洪水和其他因素不同，模拟降雨的振动为伊蚊卵的孵化提供了非常重要的刺激。
Simple laboratory experiments with eggs of wild-caught Aedes caspius (Pallas) and Aedes vittatus (Bigot) mosquitoes (Diptera, Culicidae) demonstrated that egg hatch rates (i.e. percentage hatching daily) increased significantly in response to water vibrations caused by finger-tip drumming on containers of submerged eggs. When disturbed by daily vibrations for only 30 s, eggs hatched sooner than when they remained flooded or were periodically drained and reflooded without agitation. For autogenous Ae. caspius from saltmarsh, egg hatch rates were three- to four-fold greater for groups of 50 eggs than for solitary eggs, possibly due to chemicals (functional kairomones) emanating from other eggs or larvae. For anautogenous Ae. vittatus from freshwater rock-pools, tapping the container daily (for 30 s each 2 h in 8 h) hatched 93% of eggs, compared with only 42% hatch of eggs agitated only when first flooded or 55% hatch of eggs dried and reflooded three times during 17 days without other disturbance. It is concluded that. aparr from flooding and other factors, vibrations-simulating the patter of rainfall-provide a very significant hatching stimulus for Aedes eggs.