文章基本信息

标题：Oriented migratory flight at night: Consequences of nighttime light pollution for monarch butterflies
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作者：Adam F. Parlin ; Samuel M. Stratton ; Patrick A. Guerra 等
期刊名称：iScience
印刷版ISSN：2589-0042
出版年度：2022
卷号：25
期号：5
页码：1-17
DOI：10.1016/j.isci.2022.104310
语种：English
出版社：Elsevier
摘要：SummaryWe show that light trespass—a form of nighttime light pollution (NLP)—elicits normal daytime clock-mediated migratory behavior in fall monarch butterflies during their night-cycle. In controlled indoor flight simulator studies isolating the role of NLP on the expression of oriented migratory flight using a time-compensated sun compass,a full-spectrum light source consistent with lights used outdoors at night by the public,triggered proper fall directional flight at night in monarchs. Monarchs remained quiescent when initially placed in the flight simulator in the dark, but flight was immediately triggered when our light source was turned on. This nighttime behavior was identical to that seen in outdoor free-flying fall conspecifics during the day. The light source provided directional cues equivalent to those provided by the sun and could either phase-advance or phase-delay monarchs. Our study highlights the negative consequences of NLP on diurnal animals, especially those that rely on clock-mediated behavior.Graphical abstractDisplay OmittedHighlights•Nighttime light pollution can disturb diurnal migratory monarch butterflies•Exposure to this pollution induces abnormal activity in normally quiescent monarchs•This pollution acts as sensory noise that perturbs the circadian clock of monarchs•Conservation should consider susceptibility of habitat to nighttime light pollutionEcology; Entomology; Behavioral neuroscience