标题： 蝉清晨鸣叫期间的光度决策 显示英文标题

标题： Photometric Decision-Making During the Dawn Choruses of Cicadas

摘要： 我们报告了对几种自然栖息地中蝉群黎明鸣叫开始的首次定量研究。 对声学信号的时间-频率分析用于定义集体鸣叫发展的序参量。 录音集合显示，鸣叫开始时间在数周内准确跟踪日出时间的变化，在太阳高度角为 -$3.8^\circ \pm 0.2^\circ$的民用曙光期间发生。 尽管完全发展的鸣叫在每天之间幅度有所变化，但当序参量数据按这些幅度进行缩放并由开始时间进行偏移时，它们会坍缩到一条共同的S形曲线，显示出鸣叫达到饱和幅度的特征上升时间约为60秒。 结果用于获得歌唱行为作为地面照度的累积分布函数，从中得到一个广义的易感性，该易感性表现出一个半宽度为$\sim\! 12\%$的窄峰。 序参量的方差也表现出类似的峰值，这表明该系统遵循广义的涨落-耗散定理。 开发了一个在控制参数斜坡下的决策模型，并可以与数据实现定量匹配。 它表明易感性峰的尖锐程度反映了由于声音交流而产生的协同决策。 显示英文摘要

摘要： We report the first quantitative study of the onset of dawn choruses of cicadas in several natural habitats. A time-frequency analysis of the acoustical signals is used to define an order parameter for the development of collective singing. The ensemble of recordings reveals that the chorus onset times accurately track the changing sunrise times over the course of many weeks, occurring within civil twilight at a solar elevation of -$3.8^\circ \pm 0.2^\circ$. Despite day-to-day variations in the amplitude of fully developed choruses, the order parameter data collapse to a common sigmoidal curve when scaled by those amplitudes and shifted by the onset time, revealing a characteristic rise time of ~60 s for a chorus to reach saturation amplitude. The results are used to obtain the cumulative distribution function of singing as a function of ground illumination, from which is obtained a generalized susceptibility which exhibits a narrow peak with a half-width of $\sim\! 12\%$. The variance of the order parameter exhibits a similar peak, suggesting that a generalized fluctuation-dissipation theorem holds for this system. A model of decision-making under ramps of a control parameter is developed and can achieve a quantitative match to the data. It suggest that sharpness of the susceptibility peak reflects cooperative decision-making arising from acoustic communication.