School of Biological Sciences, University of Canterbury, Christchurch, Canterbury, New Zealand.
Atarau Sanctuary, Christchurch, Canterbury, New Zealand.
Sci Rep. 2024 Jul 5;14(1):15532. doi: 10.1038/s41598-024-66108-8.
Acoustic communication is widespread in beetles, is often sexually dimorphic, and plays a significant role in behaviours such as premating recognition, courtship, and copulation. However, the factors that determine the presence or absence of acoustic signalling in a given species remain unclear. We examined acoustic communication in bark beetles (Scolytinae) and pinhole borers (Platypodinae), which are two speciose groups with widespread sound production capabilities. We show that body size along with the sequence of host colonisation predict the presence of acoustic communication, and report, for the first time in the animal kingdom, a size limit-1.9 mm-below which acoustic signalling ceases to be present.
声学通讯在甲虫中广泛存在，通常具有性别二态性，在交配前识别、求偶和交配等行为中发挥着重要作用。然而，决定特定物种是否存在声学信号的因素仍不清楚。我们研究了树皮甲虫（Scolytinae）和钻孔蛀虫（Platypodinae）的声学通讯，这两个种类繁多的群体具有广泛的发声能力。我们发现，身体大小以及宿主定殖的顺序可以预测声学通讯的存在，并首次在动物王国报告了一个大小限制-1.9 毫米以下，声学信号不再存在。
