Jian Wen, Lu Xiao, Yan Zou, Kewei Chen, Yongyue Lu, Lang Fu, Yiqiang Weng, Fengqin Cao
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引用次数: 0
摘要
竞争作为一种种间相互作用,对物种进化和生态系统稳定性都有重大影响;此外,竞争的结果还可能受种间动态和化学交流的影响。我们研究了果园中粉蚧(Planococcus lilacinus)和果蝇(Bactrocera dorsalis)的种群,评估了它们的危害率以及与火蚁(Solenopsis invicta)的相互作用。我们分析了它们在不同饲养条件下的竞争动态,并确定了蜜露和蚂蚁半化学物质中介导这种竞争的化学线索。入侵蚁的数量对我们研究的害虫的危害率有显著影响。蜜腺小蜂数量的增加会降低背壳虫造成的危害,但会增加丁香小蜂造成的危害。在不同的饲养环境中的竞争表明,在没有金龟子的情况下,多刺蛾有更强的利用食物资源的能力。然而,S. invicta的存在逆转了这一竞争结果。进一步的研究结果表明,丁香蝽的蜜露吸引了S. invicta,而S. invicta反过来又阻止了B.这表明丁香蝽采取了一种策略来驱赶 B. dorsalis 并保护其种群。我们确定了主要的蜜露吸引剂(如乳酸乙酯和顺式芳樟醇醚)和驱避剂(包括来自 S. invicta 的 d-柠檬烯和十二酸)。我们的研究结果突显了 B. dorsalis 和 P. lilacinus 之间的竞争,并强调了 S. invicta 通过化学交流在调解这些相互作用中的作用。这有助于我们了解这两种害虫是如何共存的,并对制定新的害虫管理策略具有重要意义。
期刊介绍:
Ecological Entomology publishes top-quality original research on the ecology of insects and related invertebrate taxa. Our aim is to publish papers that will be of considerable interest to the wide community of ecologists who are motivated by ecological or evolutionary theory. The suitability of a manuscript will usually be assessed within 5 days.
We publish full-length Original Articles as well as Reviews, Short Communications, Methods and Natural History papers. In Original Articles, we greatly prefer papers that test specific hypotheses and which have a high degree of novelty. All categories aim for innovative contributions that advance the subject of ecological entomology.