2019
DOI: 10.1098/rspb.2019.0872
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The preference and costs of sleeping under light at night in forest and urban great tits

Abstract: Artificial light at night (ALAN) is an increasing phenomenon associated with worldwide urbanization. In birds, broad-spectrum white ALAN can have disruptive effects on activity patterns, metabolism, stress response and immune function. There has been growing research on whether the use of alternative light spectra can reduce these negative effects, but surprisingly, there has been no study to determine which light spectrum birds prefer. To test such a preference, we gave urban and forest great tits … Show more

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Cited by 36 publications
(40 citation statements)
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“…For example, if swans avoided exposure to white light at night, then white lighting might have had relatively little effect on their physiology. Anecdotally, the swans in our study did not appear to avoid light at night, which is consistent with evidence from some other birds (Ulgezen et al, 2019) but not all (Dominoni et al, 2014;Yorzinski et al, 2015).…”
Section: Discussionsupporting
confidence: 92%
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“…For example, if swans avoided exposure to white light at night, then white lighting might have had relatively little effect on their physiology. Anecdotally, the swans in our study did not appear to avoid light at night, which is consistent with evidence from some other birds (Ulgezen et al, 2019) but not all (Dominoni et al, 2014;Yorzinski et al, 2015).…”
Section: Discussionsupporting
confidence: 92%
“…By disrupting natural light cycles, artificial light can disrupt daily rhythms of behavior and physiology in humans and wildlife (Stevens and Zhu, 2015;Dominoni et al, 2016). Effects on behavior are particularly well-documented for diurnal birds, which often show earlier onset of daily activity (Kempenaers et al, 2010;Dominoni et al, 2013b;Da Silva et al, 2014;de Jong et al, 2017;Spoelstra et al, 2018;Ulgezen et al, 2019) and increased night-time activity (Dominoni et al, 2013a;de Jong et al, 2016de Jong et al, , 2017Ouyang et al, 2017;Alaasam et al, 2018;Ulgezen et al, 2019) when exposed to light at night. These behavioral changes may arise as a direct result of artificial light enhancing the visual environment, leading diurnal animals to forage more at night (Russ et al, 2014) or become more vigilant (Yorzinski et al, 2015).…”
Section: Introductionmentioning
confidence: 99%
“…, Ulgezen et al. ), which in turn could affect fitness (Michael et al. , Yerushalmi and Green , Spoelstra et al.…”
Section: Introductionmentioning
confidence: 99%
“…Indeed, many of the known effects of light pollution are spectral dependent (Longcore et al 2015, Ouyang et al 2018. In particular, broad-spectrum lights rich in short wavelengths (i.e., blue light) have been shown to affect several behavioral and physiological responses of animals (van Langevelde et al 2011, Bruening et al 2016).…”
Section: Introductionmentioning
confidence: 99%
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