Monarch butterflies (Danaus plexippus L.) use a magnetic compass for navigation.
Monarch butterflies (Danaus plexippus L.) use a magnetic compass for navigation.
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帝王蝶 (Danaus plexippus L.) 使用磁罗盘进行导航。
DOI：
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发表时间：
1999
影响因子：
11.1
通讯作者：
R. Jander
中科院分区：
文献类型：
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作者：
Jason A. Etheredge;Sandra M. Perez;O. Taylor;R. Jander
秋季迁徙的帝王蝶在无磁场、正常磁场和反向磁场三种情况下对磁信号的方向性反应进行了测试，显示出三种不同的模式。在没有磁场的情况下，君主作为一个群体缺乏方向性。在正常磁场下，帝王蜂朝西南方向移动，具有典型的候鸟群居模式。当磁场的水平分量反转时，蝴蝶向东北方向移动。相比之下，非迁徙的帝王在正常磁场中缺乏方向性。这一结果直接证明了迁徙昆虫的磁罗盘方向。
Fall migratory monarch butterflies, tested for their directional responses to magnetic cues under three conditions, amagnetic, normal, and reversed magnetic fields, showed three distinct patterns. In the absence of a magnetic field, monarchs lacked directionality as a group. In the normal magnetic field, monarchs oriented to the southwest with a group pattern typical for migrants. When the horizontal component of the magnetic field was reversed, the butterflies oriented to the northeast. In contrast, nonmigratory monarchs lacked directionality in the normal magnetic field. The results are a direct demonstration of magnetic compass orientation in migratory insects.