两种外来入侵斑潜蝇在海南地区的竞争取代调查分析  

Surveys and Analysis of Competition and Displacement Between Two Invasive Species of Leafminer Fly in Hainan Province

作　　者：王凯歌[1] 益浩 雷仲仁[1] 相君成[1] 廉振民[2] 

机构地区：[1]中国农业科学院植物保护研究所植物病虫害生物学国家重点实验室,北京100193 [2]陕西师范大学生命科学学院,西安710062

出　　处：《中国农业科学》2013年第22期4842-4848,共7页Scientia Agricultura Sinica

基　　金：国家现代农业产业技术体系专项资金(CARS-25-B-07);北京市自然科学基金(6122026)

摘　　要：【目的】通过对海南地区2种生态位极其相似的外来入侵斑潜蝇,即美洲斑潜蝇(Liriomyza sativae)与三叶斑潜蝇(L.trifolii)种群动态的连续调查与分析,以了解2种斑潜蝇的竞争取代过程并探讨其机制。【方法】连续8年在海南地区对美洲斑潜蝇与三叶斑潜蝇的种群动态进行调查、归纳分析,并结合抗药性测定、温度及生殖干扰等研究,对海南地区2种斑潜蝇的种群更替机制进行探讨。【结果】三叶斑潜蝇的寄主植物种类广于美洲斑潜蝇。三叶斑潜蝇的分布已从2006年的4个地区扩展到海南全省。从2006年三叶斑潜蝇在海南省三亚地区被发现至今,其种群比例逐年递增。2012和2013年调查数据表明,三叶斑潜蝇已成为三亚、乐东及陵水三地的斑潜蝇优势种,其种群比例均在95%左右。【结论】与美洲斑潜蝇相比,三叶斑潜蝇竞争优势更明显,主要原因是生殖干扰能力强、适应的温度范围广、抗药性强、寄主范围广等,三叶斑潜蝇在中国的潜在分布区较大,应加强防控措施。[Objective] The objective of this study is to understand the process and the mechanisms of the competition and displacement between the two invasive species of leafminer flies （Liriomyza sativae and L. trifolii） which ecological niches are extremely similar through successive surveys and analysis of their population dynamics in Hainan Province. [ Method ] Combining inductive analysis of the surveys of the population dynamics for 8 years in Hainan and the experiments of insecticide resistance, temperature and reproductive interference, the mechanisms of the population replacement between the two species were analyzed. [Result] The range of the host plants ofL. trifolii was broader than that ofL. sativae. L. trifolii had distributed across Hainan since it was found in four areas in 2006. The population proportion of L. trifolii had been increased by years since it was firstly found in 2006 in Sanya, Hainan. The surveyed results from 2012 and 2013 indicated that L. trifolii had already become the predominant ~ species in Sanya, Ledong and Lingshui and their population proportions were about 95%. [Conclusion] The competitive advantages ofL. trifolii were more significant than that ofL. sativae. The stronger ability of reproductive interference and insecticide resistance and the broader range of suitable temperatures and host plants than that ofL. sativae were the main factors and the potential suitable establishment areas ofL. trifolii was huge in China.

关 键 词：美洲斑潜蝇 三叶斑潜蝇 竞争 取代 调查 

分 类 号：S433[农业科学—农业昆虫与害虫防治]