Bedoya Carol L, Brockerhoff Eckehard G, Hayes Michael, Leskey Tracy C, Morrison William R, Rice Kevin B, Nelson Ximena J
School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch, New Zealand.
Scion (New Zealand Forest Research Institute), Christchurch, New Zealand.
R Soc Open Sci. 2020 Nov 18;7(11):201371. doi: 10.1098/rsos.201371. eCollection 2020 Nov.
The brown marmorated stink bug, (Heteroptera: Pentatomidae), is regarded as one of the world's most pernicious invasive pest species, as it feeds on a wide range of economically important crops. During the autumn dispersal period, ultimately moves to potential overwintering sites, such as human-made structures or trees where it will alight and seek out a final overwintering location, often aggregating with other adults. The cues used during this process are unknown, but may involve vibrational signals. We evaluated whether vibrational signals regulate cluster aggregation in s in overwintering site selection. We collected acoustic data for six weeks during the autumn dispersal period and used it to quantify movement and detect vibrational communication of individuals colonizing overwintering shelters. Both movement and vibrational signal production increased after the second week, reaching their maxima in week four, before decaying again. We found that only males produced vibrations in this context, yet there was no correlation between movement and vibrational signals which was confirmed through playback experiments. The cues regulating the formation of aggregations remain largely unknown, but vibrations may indicate group size.
棕色入侵 stink 蝽（半翅目：蝽科）被视为世界上最具危害性的入侵害虫物种之一，因为它以多种具有重要经济价值的作物为食。在秋季扩散期，它最终会迁移到潜在的越冬地点，如人造建筑或树木，在那里它会停歇并寻找最终的越冬位置，通常会与其他成虫聚集在一起。在此过程中使用的线索尚不清楚，但可能涉及振动信号。我们评估了振动信号在越冬地点选择过程中是否调节聚集行为。我们在秋季扩散期的六周内收集了声学数据，并利用这些数据量化个体的移动情况以及检测定居越冬庇护所的个体之间的振动交流。在第二周之后，移动和振动信号产生都增加了，在第四周达到最大值，然后再次下降。我们发现，在这种情况下只有雄性会产生振动，但通过回放实验证实，移动与振动信号之间没有相关性。调节聚集形成的线索在很大程度上仍然未知，但振动可能表明群体规模。
