
粘虫飞行定向行为与不同磁场环境的关系
Using a national searchlight trap network to monitoring the annual dynamics of the oriental armyworm in China
王伟弘 1, 3** 张 蕾 2 程云霞 2 潘卫东 1*** 江幸福
点击:1380次 下载:29次
DOI:10.7679/j.issn.2095-1353.2018.095
作者单位:1. 中国科学院电工研究所,生物电磁学北京市重点实验室,北京 100190; 2. 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;3. 中国科学院大学,北京 100049
中文关键词:粘虫,近零磁场,垂直平面分量倒转地磁场,飞行定向行为,磁倾角
英文关键词:Mythimna separata, near-zero magnetic field, vertical variable reversed, orientation behavior, magnetic inclination
中文摘要:【目的】 研究正常地磁场和近零磁场条件下饲养的粘虫 Mythimna separata(Walker)夜间飞行
定向行为与磁场的关系,为明确迁飞性昆虫远距离迁飞的地磁定向机制提供依据。【方法】 分别在正常地
磁场和近零磁场条件饲养粘虫,羽化后的粘虫蛾在人工模拟不同的磁场条件下进行夜间飞行定向行为测
试,比较粘虫蛾飞行定向行为的差异。【结果】 粘虫蛾在正常地磁场条件下均具有显著的群体共同定向行
为,夏季测试的粘虫群体共同定向方向为偏北;在近零磁场以及垂直平面分量倒转的地磁场条件下,粘虫
蛾群体共同定向行为均消失。同时,不同磁场的生长环境对粘虫飞行定向行为的影响不明显,而飞行测试
时的磁场环境对其定向行为有显著影响。【结论】 磁场可能是粘虫定向的重要参考依据之一,粘虫对地磁
场磁倾角的变化有反应,推测其可能利用了磁倾角进行一定程度上的辅助定向。
英文摘要: [Objectives] To clarify the effect of magnetic fields on the nocturnal orientation behavior of Mythimna separata
(Walker) and investigate the magnetic orientation mechanisms of aerial migratory insects. [Methods] Oriental armyworms
were raised in geomagnetic and near-zero magnetic fields, and experiments on the orientation behavior of oriental armyworm
moths were carried out in an artificial simulated magnetic field. [Results] M. separata exhibited significant group orientation
with respect to geomagnetic field, which in summer was northward. This common group orientation disappeared under
near-zero magnetic field conditions and the vertical variable of geomagnetic field reversal. The growth environment under
different magnetic fields had little effect on orientation behavior, but the magnetic field environment had a notable influence
on flight direction. [Conclusion] The orientation of M. separata is clearly affected by magnetic field and nocturnal aerial
migratory insects may use magnetic fields for navigation.