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首页> 外文期刊>Zoological Science >Substrate-Borne Vibrations Induce Behavioral Responses in the Leaf-Dwelling Cerambycid, Paraglenea fortunei
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Substrate-Borne Vibrations Induce Behavioral Responses in the Leaf-Dwelling Cerambycid, Paraglenea fortunei

机译：底物的振动在叶生天竺葵，伞形假单胞菌中诱导行为响应

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摘要

Many insects utilize substrate-borne vibrations as a source of information for recognizing mates or predators. Among various substrates, plant leaves are commonly used for transmitting and receiving vibrational information. However, little is known about the utilization of vibrations by leaf-dwelling insects, especially coleopteran beetles. We conducted two experiments to examine the response of the leaf-dwelling cerambycid beetle, Paraglenea fortunei, to substrate-borne vibrations. We recorded and analyzed vibrations of host plant leaves from four different sources: wind (0.5 m/s), a beetle during landing, a walking beetle, and a beetle walking in the wind (0.5 m/s). We then measured the behavioral thresholds, the lowest amplitudes that induce behavioral responses, from beetles walking and resting on horizontal and vertical substrates with pulsed vibrations ranging from 20 Hz to 1 kHz. The vibrational characteristics of biotic and abiotic stimuli clearly differed. Beetle-generated vibrations (landing, walking, and walking in the wind) were broadly high in the low-frequency components above similar to 30 Hz, while wind-generated vibrations showed a dominant peak at similar to 30 Hz and a steep decrease thereafter. Among four situations, beetles walking on horizontal substrates showed lowest thresholds to vibrations of 75-500 Hz, which are characteristic of beetle-generated vibrations. Given that P. fortunei beetles are found on horizontal leaf surfaces of the host plant, vibrations transmitted though horizontal substrates may induce a strong freeze response in walking beetles to detect conspecifics or heterospecifics. Our findings provide evidence that leaf-dwelling beetles can discriminate among biotic and abiotic factors via differences in vibrational characteristics.
机译：许多昆虫利用基质传播的振动作为识别伴侣或掠食者的信息源。在各种基质中，植物叶片通常用于发送和接收振动信息。然而，人们对叶类昆虫，尤其是鞘翅目甲虫对振动的利用知之甚少。我们进行了两个实验，以研究居住在叶片上的cerambycid甲虫（Paraglenea fortunei）对基质传播的响应。我们记录并分析了来自四种不同来源的寄主植物叶片的振动：风（0.5 m / s），着陆时的甲虫，步行的甲虫和随风行走的甲虫（0.5 m / s）。然后，我们测量了行为阈值，即引起行为响应的最低幅度，该行为阈是由甲虫在水平和垂直基底上行走和休息时产生的，其脉冲振动范围为20 Hz至1 kHz。生物和非生物刺激物的振动特性明显不同。甲虫产生的振动（在风中着陆，行走和行走）在高于30 Hz的低频分量中普遍较高，而风产生的振动在30 Hz处显示出主要峰值，此后急剧下降。在四种情况下，在水平基底上行走的甲虫对75-500 Hz的振动表现出最低的阈值，这是由甲虫产生的振动的特征。假定在寄主植物的水平叶片表面发现了福寿甲虫，通过水平基质传播的振动可能会在行走的甲虫中引起强烈的冻结反应，从而检测出同种或异种。我们的发现提供了证据，表明居住在地上的甲虫可以通过振动特性的差异来区分生物和非生物因素。

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