Experimental tests of light-pollution impacts on nocturnal insect courtship and dispersal
Experimental tests of light-pollution impacts on nocturnal insect courtship and dispersal
复制标题
DOI：
10.1007/s00442-016-3723-1
复制
发表时间：
2016-12-01
期刊：
影响因子：
2.7
通讯作者：
Haynes, Kyle J.
中科院分区：
文献类型：
--
作者：
Firebaugh, Ariel;Haynes, Kyle J.
尽管已经描述了人造光污染对行为和生理的许多影响，但对其对人口增长和分布的影响却知之甚少。在这里，我们记录了光污染对萤火虫种群生态和潜在交配行为的影响。许多萤火虫物种都有独特的通讯系统，在求偶表演中使用生物发光闪光来寻找和吸引配偶。我们进行了一系列操作性现场实验，其中量化了添加人工夜间照明对萤火虫丰度和总闪烁活动、被拴住的雌性和自由飞行的雄性之间的求偶行为和交配以及标记个体的分散距离的影响。我们发现，光污染使暗活跃型萤火虫（Photuris versicolor）的闪光活动减少了 69.69%，并使暮光活跃型萤火虫（Photinuspyralis）的求偶行为和交配成功率降低了 69.69%。尽管光污染降低了萤火虫的求偶行为和交配成功率，但我们发现光污染对该物种的雄性扩散没有影响。我们的研究结果表明，光污染可能会对萤火虫种群产生不利影响，并有助于更广泛地讨论感官污染的生态后果。
Though a number of effects of artificial light pollution on behavior and physiology have been described, there is little understanding of their consequences for the growth and distribution of populations. Here, we document impacts of light pollution on aspects of firefly population ecology and underlying mating behaviors. Many firefly species have a unique communication system whereby bioluminescent flashes are used in courtship displays to find and attract mates. We performed a series of manipulative field experiments in which we quantified the effects of adding artificial nighttime lighting on abundances and total flashing activity of fireflies, courtship behaviors and mating between tethered females and free-flying males, and dispersal distances of marked individuals. We show that light pollution reduces flashing activities in a dark-active firefly species (Photuris versicolor) by 69.69 % and courtship behavior and mating success in a twilight-active species (Photinus pyralis). Though courtship behavior and mating success of Photinus pyralis was reduced by light pollution, we found no effects of light pollution on male dispersal in this species. Our findings suggest that light pollution is likely to adversely impact firefly populations, and contribute to wider discussions about the ecological consequences of sensory pollution.