Adult Diaphorina citri (ACP) use visual and chemical cues to locate young citrus flush shoots on which they forage and oviposit, and they use vibrational communication duetting calls as cues to help locate mates. For individual pairs, calling and mating usually peaks between 10:00 and 15:00. To explore whether call rates (calls/h) are affected by interactions with nearby conspecifics, rates were compared in small citrus trees on which either 5 or 25 ACP female and male pairs had been released at 17:00 for later recording from sunrise (06:00) to 22:00. Final ACP locations were noted 40 h after release. Call rates were similar in both treatments during normal mating hours. However, rates were significantly higher for low- than high-density treatments between 06:00 and 10:00, which suggests calling during this period may be affected by conspecific density. Both sexes aggregated on flush at both densities. We discuss the potential that ACP producing calls near sunrise, outside of normal mating hours, might benefit from gains in reproductive fitness in low-density contexts if they call not only to locate mates but also to locate preferred flush—in which case, co-opting of vibrations to disrupt both mating and foraging may be feasible.

中文翻译：

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桔黄种群密度对振动通讯的每日时间的影响：寻找草料的潜在好处

成人柑桔（ACP）使用视觉和化学提示来定位它们觅食和产卵的年轻柑橘齐梢，并使用振动通讯二重唱作为提示来帮助寻找伴侣。对于单个配对，呼叫和交配通常在10:00和15:00之间达到峰值。为了探究通话率（calls / h）是否受附近物种的相互作用的影响，我们比较了小型柑橘树的通话率，这些柑橘树在17:00释放了5对或25对ACP雌雄配对，以便从日出后开始记录（06 ：00）到22:00。释放后40小时记录了ACP的最终位置。在正常交配时间内，两种治疗的呼出率相似。但是，在06:00到10:00之间，低密度治疗的发生率明显高于高密度治疗，这表明此期间的呼叫可能受同种密度影响。两种密度的男女都聚集在一起。我们讨论了ACP在正常交配时间以外接近日出的地方打电话的潜力，如果他们不仅打电话给伴侣，而且打电话给喜欢的同花顺，那么他们可能会受益于低密度环境下的生殖适应能力的提高。选择振动以破坏交配和觅食可能是可行的。