| 骆清兰，张春晖，李平东，李志强，黄乐婷，叶智文，吴瑞璇，陈科伟,,个体间协作对叉角厉蝽捕食草地贪夜蛾幼虫能力的影响[J].环境昆虫学报,(): |
| 个体间协作对叉角厉蝽捕食草地贪夜蛾幼虫能力的影响 |
| Effect of inter-individual cooperation on the predatory capability of Eocanthecona furcellata (Hemiptera: Pentatomidae) on the larvae of Spodoptera frugiperda (Lepidoptera: Noctuidae) |
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| DOI： |
| 中文关键词: 叉角厉蝽 草地贪夜蛾 协同捕食 捕食效能 |
| 英文关键词:Eocanthecona furcellata Spodoptera frugiperda cooperative predation predation efficacy |
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| 中文摘要: |
| 为合理评估叉角厉蝽Eocanthecona furcellata对重要农业害虫草地贪夜蛾Spodoptera frugiperda的捕食作用，本研究在设置相同的捕食者与猎物比例条件下，通过同步增加捕食者与猎物数量的方法，探讨了个体间协作对叉角厉蝽捕食能力的影响。研究结果表明，叉角厉蝽低龄若虫（2龄和3龄）的捕食能力较弱，无法单独捕食体型较大的草地贪夜蛾5龄幼虫，但可通过个体间协作方式进行围猎。当2龄与3龄若虫分别有3个和1个以上同伴时，能够捕食草地贪夜蛾5龄幼虫，显示出明显的协同效应。而叉角厉蝽4龄、5龄若虫及雌成虫则具备较强的捕食能力，能够单独捕食体型较大的草地贪夜蛾5龄幼虫，且同伴数量的增加不会产生明显的协同增益效应。研究结果为合理评估不同虫态叉角厉蝽的捕食能力及其田间的应用提供了重要的参考依据。 |
| 英文摘要: |
| In order to thoroughly evaluate the predatory capabilities of Eocanthecona furcellata on the larvae of the economically significant agricultural pest, Spodoptera frugiperda (fall armyworm), this study examined the influence of individual collaboration on the predation efficacy of E. furcellata. This was achieved by simultaneously increasing the populations of both predators and prey while maintaining a consistent predator-to-prey ratio. The findings revealed that the predatory performance of younger nymphs (2nd and 3rd instar) of E. furcellata was significantly inferior to that of the 4th and 5th instar nymphs and female adults, as the younger nymphs were incapable of individually preying on the 5th instar larvae of S. frugiperda. Nevertheless, these younger nymphs exhibited the ability to engage in cooperative hunting; specifically, groups of more than three 2nd instar nymphs or more than one 3rd instar nymph were able to successfully prey on the 5th instar larvae, indicating a pronounced synergistic effect. Conversely, the 4th and 5th instar nymphs, along with female adults of E. furcellata, exhibited robust predatory capabilities, with each capable of independently preying on the 5th instar larvae of S. frugiperda. However, the addition of more partners did not yield a significant synergistic enhancement of their predation. These findings contribute to the understanding of the predatory abilities across different developmental stages of E. furcellata and their potential applications in agricultural pest management. |
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