天光诱导的光度梯度会影响迁徙的方向
Yi Ji1, Yibo Ma1, Zhangsu Wen1
1State Key Laboratory of Agricultural and Forestry Biosecurity, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China.
Insects
|December 30, 2025
概括
夜间的人工光 (ALAN) 制造天空闪光,扰乱了昆虫的迁徙. 秋季军虫避开更明亮的区域,可能会误导它们的季节性旅程并影响导航.
科学领域:
- 生态生态学 生态生态学
- 环境科学 环境科学
- 行为生态学 行为生态学
背景情况:
- 夜间的人工光 (ALAN) 显著影响全球夜间生态系统.
- 虽然对昆虫的直接光效已知,但天光对迁徙方向的影响尚不清楚.
研究的目的:
- 为了研究天花灯诱导的光度梯度如何影响秋季军 (Spodoptera frugiperda) 的飞行方向.
- 为了确定skyglow是否作为一个导航提示或干扰夜间迁徙者的干扰.
主要方法:
- 控制的室内模拟复制SkyGlow的发光度梯度.
- 实地测试用于在自然条件下观察飞行方向.
- 利用秋季军,一个重要的夜间迁徙虫害.
主要成果:
- 秋季军在光度梯度的存在下,始终朝着更黑暗的区域倾向.
- 这种方向偏离了它们预期的季节性迁徙方向.
- 观察到的反应在模拟和现场设置中都是一致的.
结论:
- 天光产生的光度梯度可以作为夜行昆虫的方向线索.
- 这些梯度可能会干扰和误导季节性迁移,作为生态陷.
- 天光是夜间昆虫导航和远距离定位的一个未被认可的因素.
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