Maternal vibration induces synchronous hatching in a subsocial burrower bug
Maternal vibration induces synchronous hatching in a subsocial burrower bug
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DOI：
10.1016/j.anbehav.2012.09.012
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发表时间：
2012-12-01
期刊：
影响因子：
2.5
通讯作者：
Nomakuchi, Shintaro
中科院分区：
文献类型：
--
作者：
Mukai, Hiromi;Hironaka, Mantaro;Nomakuchi, Shintaro
在一些产卵的物种中，父母通过调节胚胎的孵化模式来提供照顾，因为后代的生存和生长受到孵化时间的影响。穴居虫，Adomerus rotundus（异翅亚目：Cydnidae）表现出母性关怀，包括防御捕食和提供食物。我们发现A.圆臀母象在保持护卵姿势的同时，表现出身体的振动（有节奏地摇动身体），即在前腿和后腿之间的胸部下握住卵块。我们试图确定是否A。圆形的母亲通过这种物理振动诱导同步孵化。母体振动的峰值与大多数胚胎从卵中孵化出来的时间一致。为了研究母亲的存在对孵化同步性的影响，我们进行了一个实验，在这个实验中，母亲在孵化前立即被移除。控制育雏，经历了持续的守卫从母亲，孵化同步，而实验育雏，这已被隔离的母亲，孵化更异步。为了确定胚胎孵化是否专门响应振动信号，我们将成熟的卵块暴露于人工振动并监测孵化模式。人工振动诱导同步孵化。这些结果表明A.圆背飞虱的母亲积极利用身体振动促进同步孵化。(C)2012年，动物行为研究协会。由爱思唯尔有限公司出版。保留所有权利。
In some egg-laying species, parents provide care by regulating the hatching pattern for embryos because the survival and growth of offspring are influenced by the timing of hatching. Burrower bugs, Adomerus rotundus (Heteroptera: Cydnidae) exhibit maternal care including defence against predation and provision of food. We found that A. rotundus mothers displayed physical vibration (shaking the body rhythmically) while maintaining the egg-guarding posture, i.e. holding the egg mass under the thorax between the forelegs and midlegs. We sought to ascertain whether A. rotundus mothers induce synchronous hatching by this physical vibration. The peak in maternal vibrations coincided with the time when most embryos hatched from their eggs. To investigate the effect of the presence of a mother on hatching synchrony, we conducted an experiment in which the mother was removed immediately before hatching. The control broods, which experienced continuous guarding from the mother, hatched synchronously, while the experimental broods, which had been isolated from the mother, hatched more asynchronously. To ascertain whether embryos hatch specifically in response to the vibrational signal, we exposed mature egg masses to an artificial vibration and monitored hatching patterns. The artificial vibration induced synchronous hatching. These results strongly suggest that A. rotundus mothers promote synchronous hatching actively using physical vibration. (C) 2012 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.