Doru luteipes 作为秋虫捕食者角色的新视角:非消耗效应、捕食偏好和功能反应

IF 1.7 3区 农林科学 Q2 ENTOMOLOGY Journal of Applied Entomology Pub Date : 2024-07-08 DOI:10.1111/jen.13321
Ana Luisa Rodrigues‐Silva, Patrick Lopes Gualberto, Sérgio Domingos Simão, Izabela Regina Cardoso de Oliveira, Rosangela Cristina Marucci
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引用次数: 0

摘要

在巴西,普通蠼(Doru luteipes (Scudder) (Dermaptera: Forficulidae))被认为是玉米作物的一种重要生物控制剂,它能吃掉从第一龄到第三龄的秋军虫 Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae)卵和毛虫。尽管如此,关于这些物种之间相互作用的几个方面尚未进行研究。我们的目的是评估蠼对飞蛾产卵的非消耗性影响、蠼在卵和新生幼虫之间的捕食偏好以及它对 S. frugiperda 卵的功能反应。在有无捕食者存在的植物之间进行的无选择测试中,S. frugiperda蛾在有捕食风险的植物上产卵的数量较少。在选择性试验中,蠼最初攻击新生毛虫,但更喜欢取食卵。随着供给密度的增加,雄性和雌性蠼更多地取食卵,消耗量根据第二类功能反应曲线进行调整。当虫卵密度较高时,黄耳蝉雄虫的捕食效率高于雌虫。这些发现澄清了卢氏蠼对S. frugiperda的捕食作用中尚未涉及的方面,并表明如果条件有利于卢氏蠼的早期到来,它有可能影响S. frugiperda在玉米作物中的定殖和种群增长。
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New perspective on the role of Doru luteipes as a predator of the fall armyworm: Non‐consumptive effects, predatory preference and functional response
In Brazil, the common earwig Doru luteipes (Scudder) (Dermaptera: Forficulidae) is considered an important biocontrol agent for the maize crop, consuming the fall armyworm Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) eggs and caterpillars from 1st to the 3rd instar. Despite this, several aspects of the interaction between these species have not yet been studied. We aim to evaluate the non‐consumptive effects of earwigs on the oviposition of moths, the earwig's predatory preference between eggs and neonates and its functional response to S. frugiperda eggs. In no‐choice tests between plants with or without the presence of the predator, S. frugiperda moths deposited a smaller number of eggs on plants with risk of predation. In choice‐based tests, earwigs initially attacked newborn caterpillars, but preferred to feed on eggs. Males and females fed more on eggs with increasing supply density and consumption was adjusted to the type II functional response curve. D. luteipes males were more efficient predators than females when exposed to higher egg densities. These findings clarify aspects of the predatory role of D. luteipes on S. frugiperda that had not yet been addressed and suggest that the earwig has potential for impacting the colonization and population growth of S. frugiperda in maize crops, if conditions are favourable to its early arrival.
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来源期刊
CiteScore
3.40
自引率
5.30%
发文量
132
审稿时长
6 months
期刊介绍: The Journal of Applied Entomology publishes original articles on current research in applied entomology, including mites and spiders in terrestrial ecosystems. Submit your next manuscript for rapid publication: the average time is currently 6 months from submission to publication. With Journal of Applied Entomology''s dynamic article-by-article publication process, Early View, fully peer-reviewed and type-set articles are published online as soon as they complete, without waiting for full issue compilation.
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