The influence of Typhoon Khanun on the return migration of Nilaparvata lugens (Stål) in eastern China.
The influence of Typhoon Khanun on the return migration of Nilaparvata lugens (Stål) in eastern China.
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DOI：
10.1371/journal.pone.0057277
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发表时间：
2013
期刊：
影响因子：
3.7
通讯作者：
Zhai BP
中科院分区：
文献类型：
--
作者：
Hu G;Lu F;Lu MH;Liu WC;Xu WG;Jiang XH;Zhai BP
迁徙昆虫适应并利用大气环境完成迁徙并维持种群数量。然而，关于昆虫在台风等极端天气条件影响下的迁徙机制，人们知之甚少。利用个例分析方法，研究了台风“卡努”于9月9日在中国东部登陆的影响。2005年，关于褐飞虱的迁徙(STóL)。利用中尺度数值天气预报模式MM5计算路径，重建了台风影响期间褐飞虱的迁移路径，并结合辅助信息对长江三角洲地区7个县的迁徙过程进行了检验。诱光器捕捉和野外观测表明，褐飞虱的迁徙高峰与台风在该地区登陆的时间相吻合。轨迹分析表明，在此期间，来自该区域的大多数移民都受到阻碍或在短距离内结束。诱捕器渔获物的来源主要位于每个站点的附近区域(即大部分距离不到100公里，少数超过200公里，但都不到300公里)。这次中断的迁徙与通常的北鲁更斯迁徙非常不同，通常情况下，他们会在每年的这个时候从这个地区迁徙到湖南、江西和安徽南部。这项研究表明，台风卡努抑制了褐飞虱的返回迁徙，导致长三角地区的种群数量居高不下，并加剧了后来的疫情。
Migratory insects adapt to and exploit the atmospheric environment to complete their migration and maintain their population. However, little is known about the mechanism of insect migration under the influence of extreme weather conditions such as typhoons. A case study was conducted to investigate the effect of typhoon Khanun, which made landfall in the eastern China in Sept. 2005, on the migration of brown planthopper, Nilaparvata lugens (Stål). The migration pathways of N. lugens were reconstructed for the period under the influence of the typhoon by calculating trajectories using the MM5, a mesoscale numerical weather prediction model, and migration events were examined in 7 counties of the Yangtze River Delta region with ancillary information. The light trap catches and field observations indicated that the migration peak of N. lugens coincided with the period when the typhoon made landfall in this region. The trajectory analyses revealed that most emigrations from this region during this period were hampered or ended in short distances. The sources of the light-trap catches were mainly located the nearby regions of each station (i.e. mostly less than 100 km away, with a few exceeding 200 km but all less than 300 km). This disrupted emigration was very different from the usual N. lugens migration which would bring them to Hunan, Jiangxi, and southern Anhui from this region at this time of year. This study revealed that the return migration of N. lugens was suppressed by the typhoon Khanun, leading to populations remaining high in the Yangtze River Delta and exacerbating later outbreaks.
影响因子：
1.5
作者：
Deveson, ED;Drake, VA;Wang, HK
通讯作者：
Wang, HK
影响因子：
1.9
作者：
Hu, G.;Cheng, X. N.;Zhai, B. P.
通讯作者：
Zhai, B. P.
影响因子：
56.9
作者：
Chapman, Jason W.;Nesbit, Rebecca L.;Hill, Jane K.
通讯作者：
Hill, Jane K.