Autumn migration of Mythimna separata (Lepidoptera : Noctuidae) over the Bohai Sea in northern China
文献类型： 外文期刊
作者： Feng, Hong-Qiang 2 ; Zhao, Xin-Cheng 1 ; Wu, Xian-Fu 1 ; Wu, Bo 1 ; Wu, Kong-Ming 1 ; Cheng, Deng-Fa 1 ; Guo, Yu-Yuan 1 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100094, Peoples R China
2.Henan Acad Agr Sci, Inst Plant Protect, Zhengzhou 450002, Peoples R China
关键词： Mythimna separata;radar observation;light trapping;flight behavior;autumn migration
期刊名称：ENVIRONMENTAL ENTOMOLOGY （ 影响因子：2.377； 五年影响因子：2.298 ）
ISSN： 0046-225X
年卷期： 2008 年 37 卷 3 期
页码：
收录情况： SCI
摘要： The autumn migration of Mythimna separata (Walker) (Lepidoptera: Noctuidae) across the Bohai Sea was observed with a scanning entomological radar and a searchlight trap at Beihuang, an island located in the center of the Bohai Gulf of northern China, in 2003-2006. During the autumn migration, M.. separata flew at the altitudes of 50-500 in, with a displacement speed of 4-12 m/s, toward the southwest. Variations of area density of the radar targets and of catches in the searchlight trap through the night indicated that the flight duration of M. separata was approximate to 10 h. Based on these observations, M. separata that originated in northeastern China (i.e., Liaoning, Jilin, and Heilongjiang provinces and part of the Inner Mongolia autonomous region) could immigrate into eastcentral China and subsequently to southern China (i.e., Fujian, Guangdong, and Guangxi provinces) within a week for overwintering.
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