Entrainment of the circatidal activity rhythm of the mangrove cricket, Apteronemobius asahinai, to periodic inundations
Entrainment of the circatidal activity rhythm of the mangrove cricket, Apteronemobius asahinai, to periodic inundations
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DOI：
10.1016/j.anbehav.2009.04.018
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发表时间：
2009-07-01
期刊：
影响因子：
2.5
通讯作者：
Numata, Hideharu
中科院分区：
文献类型：
--
作者：
Satoh, Aya;Yoshioka, Eiji;Numata, Hideharu
红树林蟋蟀成虫的活动具有明显而持久的昼夜节律，自由活动周期约为12.6 h。在持续的黑暗中，个人在主观低潮时活跃，在主观高潮时不活跃。当我们提供了一个30分钟的淹没刺激四次，在12.4小时的间隔，昼夜节律夹带到给定的淹没周期在恒定的黑暗。在治疗后，蟋蟀在预期的淹没刺激的时间变得不活跃。昼夜节律响应周期性的洪水在一个阶段依赖的方式：当周期性的洪水开始在第一个半活跃阶段（即主观低潮），一个大的相位延迟，而周期性的刺激，开始在第二个半的主观低潮造成了大的相位提前。相位响应曲线（PRC）的形状类似于昼夜节律的1型PRC，具有延迟和提前之间的连续过渡。PRC模式之间的相似性提供了昼夜节律振荡器的证据，其具有类似于昼夜节律振荡器的特征。(C)2009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。
Adults of the mangrove cricket show a clear and persistent circatidal rhythm in their locomotor activities, with a free-running period of about 12.6 h. Individuals are active during the subjective low tide and inactive during the subjective high tide, under constant darkness. When we provided a 30 min inundation stimulus four times, at intervals of 12.4 h, the circatidal rhythm entrained to the given inundation cycles under constant darkness. After the treatment, crickets became inactive around the times when the inundation stimulus was expected. The circatidal rhythm responded to periodic inundations in a phase-dependent manner: when periodic inundations started during the first half of the active phase (i.e. the subjective low tide), a large phase delay resulted, whereas periodic stimuli that started during the second half of the subjective low tide caused a large phase advance. The shape of the phase response curve (PRC) resembled that of the Type 1 PRC of circadian rhythms, with continuous transitions between delays and advances. The similarity between the PRC patterns provides evidence of a circatidal oscillator, which has characteristics similar to a circadian oscillator. (C) 2009 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.