Light pollution affects space use and interaction of two small mammal species irrespective of personality.

IF 2.2 2区环境科学与生态学 Q1 Agricultural and Biological Sciences

BMC Ecology Pub Date : 2019-06-18 DOI:10.1186/s12898-019-0241-0

Julia Hoffmann, Annika Schirmer, Jana Anja Eccard

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引用次数: 16

Abstract

Background: Artificial light at night (ALAN) is one form of human-induced rapid environmental changes (HIREC) and is strongly interfering with natural dark-light cycles. Some personality types within a species might be better suited to cope with environmental change and therefore might be selected upon under ongoing urbanization.

Results: We used LED street lamps in a large outdoor enclosure to experimentally investigate the effects of ALAN on activity patterns, movement and interaction of individuals of two species, the bank vole (Myodes glareolus) and the striped field mouse (Apodemus agrarius). We analyzed effects combined with individual boldness score. Both species reduced their activity budget during daylight hours. While under natural light conditions home ranges were larger during daylight than during nighttime, this difference vanished under ALAN. Conspecifics showed reduced home range overlap, proximity and activity synchrony when subjected to nighttime illumination. Changes in movement patterns in reaction to ALAN were not associated with differences in boldness score of individuals.

Conclusions: Our results suggest that light pollution can lead to changes in movement patterns and individual interactions in small mammals. This could lead to fitness consequences on the population level.

Abstract Image

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光污染影响了两种小型哺乳动物的空间利用和相互作用，而不考虑其个性。

背景:夜间人造光(ALAN)是人类引起的快速环境变化(HIREC)的一种形式，强烈干扰自然暗光周期。一个物种中的某些人格类型可能更适合于应对环境变化，因此可能在持续的城市化中被选择。结果:利用LED路灯在大型室外环境中，实验研究了ALAN对银田鼠(Myodes glareolus)和条纹田鼠(Apodemus agrarius)两种田鼠的活动模式、运动和相互作用的影响。结合个体大胆度评分分析效果。这两个物种在白天都减少了它们的活动预算。虽然在自然光条件下，白天的家庭范围比夜间大，但这种差异在ALAN下消失了。当受到夜间照明时，同种动物表现出家园范围重叠、接近和活动同步减少。对ALAN反应的运动模式的变化与个体大胆得分的差异无关。结论:我们的研究结果表明，光污染会导致小型哺乳动物的运动模式和个体相互作用的变化。这可能会导致种群水平上的适应性结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

BMC Ecology ECOLOGY-

CiteScore

5.80

自引率

4.50%

发文量

审稿时长

22 weeks

期刊介绍： BMC Ecology is an open access, peer-reviewed journal that considers articles on environmental, behavioral and population ecology as well as biodiversity of plants, animals and microbes.