Non-auditory effects of traffic noise in birds: sleep, metabolic regulation, and cellular senescence

我们的世界是嘈杂的，随着城市化在地球仪上的扩展，噪音污染越来越严重。噪音令人烦恼，但除此之外，它还对人类和其他长期存在噪音的动物的健康和行为产生了一系列令人担忧的负面影响。先前的研究表明，噪声污染会影响声学通信，学习，压力生理学和细胞衰老。 在这个项目中，我们将调查交通噪音污染和行为生理学之间的联系，以及在一系列实验中使用鸟类作为模式物种的繁殖。在人类中，夜间噪音暴露似乎比白天同等噪音暴露具有更强的不利影响。可以解释这一观察结果的一个机制是，噪音会扰乱睡眠，睡眠障碍会导致代谢失调，心血管问题和细胞衰老。在这项研究中，我们将通过实验探索交通噪音是否会导致鸟类睡眠中断，反过来，如果睡眠中断会导致代谢调节受损，端粒动力学变化以及生殖行为或健身。此外，我们还将调查早期暴露于交通噪音，甚至是暴露于噪音的父母是否会影响鸟类在以后的生活中科普噪音的能力。

Our world is noisy and is becoming ever more polluted with noise as urbanization expands across the globe. Noise annoys, but beyond that it has been linked to a worrying range of negative effects on the health and behaviour of humans and also of other animals for which noise is chronically present. Previous research has shown that noise pollution can affect acoustic communication, learning, stress physiology, and cellular ageing. In this project we will investigate links between traffic noise pollution and behavioural physiology as well as reproduction in a series of experiments using birds as a model species. In humans, nocturnal noise exposure seems to have a stronger adverse effect than the equivalent noise exposure during the day. One mechanism that may explain this observation is that noise can disrupt sleep, and that sleep disturbance results in metabolic dysregulation, cardiovascular problems, and cellular senescence. In this study, we will experimentally explore whether traffic noise causes sleep disruption in birds, and in turn, if sleep disruption leads to impaired metabolic regulation, changes in telomere dynamics, and reproductive behaviour or fitness. In addition, we will investigate whether early exposure to traffic noise, or even whether being born to parents that were exposed to noise affects the ability of birds to cope with noise later in life.