When a male perceives a female: the effect of waxy components on the body surface on decision-making in the invasive pest weevil

When a male perceives a female: the effect of waxy components on the body surface on decision-making in the invasive pest weevil
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当雄性感知雌性时:体表蜡质成分对入侵害虫象鼻虫决策的影响

DOI:
10.1098/rsos.181542
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发表时间:
2019
影响因子:
3.5
通讯作者:
Tatsuta Haruki
Tatsuta Haruki
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Isa Mutsumi;Kumano Norikuni;Tatsuta Haruki

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昆虫使用各种化学信息素进行性交流和配偶识别;因此,这些可以用来控制有害害虫物种的行为,并且已经为此目的探索了几种候选化学品。对于甘薯最严重的害虫之一西印度甘薯象甲(Euscepes postfasciatus),尚无性信息素引诱等有效的捕捉技术。为了探索监测这些象鼻虫的有前途的程序,我们评估了体表分泌物对象鼻虫识别同类和求偶行为的影响。我们的研究清楚地表明,象鼻虫对体表提取物有反应,并且象鼻虫的行为根据提取物的状况而显着变化。此外,根据生存分析,我们发现雄性在覆盖有雌性提取物的玻璃珠上的保留时间显着延长。据我们所知,这些发现首次显示了体表脂质成分对这些经济上重要的害虫象鼻虫决策的影响。
Insects use various semiochemicals for sexual communication and mate recognition; these can therefore be used to govern the behaviours of harmful pest species, and several candidate chemicals have been explored for this purpose. For the West Indian sweet potato weevil,Euscepes postfasciatus, which is one of the most serious pests of sweet potato, no effective capture techniques, such as sex pheromone lures, exist. Toward exploring promising procedures for monitoring these weevils, we assessed the effect of secretions on the body surface on the recognition of congeners and on courtship behaviour in the weevils. Our study clearly demonstrated that weevils responded to extracts from the body surface, and the behaviour adopted by the weevils varied significantly depending on the condition of the extracts. Furthermore, we found a significantly prolonged retention time for males on glass beads covered with extracts of females based on survival analysis. These findings are, as far as we are aware, the first to show the effect of lipid components of the body surface on decision-making in these economically important pest weevils.
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