数字农科院2.0

Effects Of Artificial Light At Night On Foraging Behavior And Vigilance In A Nocturnal Rodent

文献类型： 外文期刊

作者： Zhang, FS; Wang, Y; Wu, K; Xu, WY; Wu, J; Liu, JY; Wang, XY; Shuai, LY

作者机构：

关键词： Giving-Up Density; Jerboa; Led; Light Pollution; Predation Risk; Searching Efficiency

期刊名称： SCIENCE OF THE TOTAL ENVIRONMENT

ISSN： 0048-9697

年卷期： 2020 年 724 卷

页码：

收录情况： JCR（2021版） ; EI（2021版）

摘要： Artificial light at night has greatly changed the physical environment for many organisms on a global scale. As an energy efficient light resource, light emitting diodes (LEDs) have been widely used in recent years. As LEDs often have a broad spectrum, many biological processes may be potentially affected. In this study, we conducted manipulated experiments in rat-proof enclosures to explore the effects of LED night lighting on behavior of a nocturnal rodent, the Mongolian five-toed jerboa (Allactaga sibirica). We adopted the giving-up density (GUD) method and camera video trapping to study behavioral responses in terms of patch use, searching efficiency and vigilance. With the presence of white LED lighting, jerboas spent less time in patches, foraged less intensively (with higher GUDs) and became vigilant more frequently, while their searching efficiency was higher than under dark treatment. Although both positive and negative effects of LEDs on foraging were detected, the net effect of LEDs on jerboas is negative, which may further translate into changes in population dynamics, inter-specific interaction and community structure. To our knowledge, this is the first field study to explore how LED lighting affect foraging behavior and searching efficiency in rodents. Our results may have potential implications for practices such as pest control. (C) 2020 Elsevier B.V. All rights reserved.

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