ArticleJournal of experimental zoology. Part A, Ecological and integrative physiology2018
Light at night disrupts nocturnal rest and elevates glucocorticoids at cool color temperatures.
Article in Journal of experimental zoology. Part A, Ecological and integrative physiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
17 citing papers in PubMed, 53 citations in OpenAlex.
- Effects of a high-power laser eye exposure on avian foraging behaviour: implications for the safety of laser bird deterrents.Conservation physiology · 2026Article
- Birds of a feather flock together: social context exacerbates the effects of light pollution on circadian disruption.Proceedings. Biological sciences · 2025Article
- Artificial light at night weakens body condition but does not negatively affect physiological markers of health in great tits.The Journal of experimental biology · 2025Article
- Eye catching light: Anthropogenic light at night and its evolutionary influence on the avian eye.iScience · 2025Article
- Short- and long-wavelength lights disrupt endocrine signalling but not immune function in a nocturnal marsupial.Conservation physiology · 2025Article
- Zebra finches (Taeniopygia castanotis) display varying degrees of stress resilience in response to constant light.General and comparative endocrinology · 2025Review
- Light at night exposure and risk of dementia conversion from mild cognitive impairment in a Northern Italy population.International journal of health geographics · 2024Article
- What happens when the lights are left on? Transcriptomic and phenotypic habituation to light pollution.iScience · 2024Article
- Dim artificial light at night alters immediate early gene expression throughout the avian brain.Frontiers in neuroscience · 2023Article
- Light at Night and Disrupted Circadian Rhythms Alter Physiology and Behavior.Integrative and comparative biology · 2021Review
- Feather, But Not Plasma, Glucocorticoid Response to Artificial Light at Night Differs between Urban and Forest Blue Tit Nestlings.Integrative and comparative biology · 2021Article
- Effects of dim artificial light at night on locomotor activity, cardiovascular physiology, and circadian clock genes in a diurnal songbird.Environmental pollution (Barking, Essex : 1987) · 2021Article
- Light, Sleep and Performance in Diurnal Birds.Clocks & sleep · 2021Review
- Light at night reduces digestive efficiency of developing birds: an experiment with king quail.Die Naturwissenschaften · 2021Article
- Baseline and stress-induced corticosterone levels across birds and reptiles do not reflect urbanization levels.Conservation physiology · 2020Article
- Light at night disrupts diel patterns of cytokine gene expression and endocrine profiles in zebra finch (Taeniopygia guttata).Scientific reports · 2019Article
- Artificial light at night as an environmental pollutant: An integrative approach across taxa, biological functions, and scientific disciplines.Journal of experimental zoology. Part A, Ecological and integrative physiology · 2018Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 4 institutions in 2 countries.
Funding
Abstract
Nighttime light pollution is quickly becoming a pervasive, global concern. Since the invention and proliferation of light-emitting diodes (LED), it has become common for consumers to select from a range of color temperatures of light with varying spectra. Yet, the biological impacts of these different spectra on organisms remain unclear. We tested if nighttime illumination of LEDs, at two commercially available color temperatures (3000 and 5000 K) and at ecologically relevant illumination levels affected body condition, food intake, locomotor activity, and glucocorticoid levels in zebra finches (Taeniopygia guttata). We found that individuals exposed to 5000 K light had higher rates of nighttime activity (peaking after 1 week of treatment) compared to 3000 K light and controls (no nighttime light). Birds in the 5000 K treatment group also had increased corticosterone levels from pretreatment levels compared to 3000 K and control groups but no changes in body condition or food intake. Individuals that were active during the night did not consequently decrease daytime activity. This study adds to the growing evidence that the spectrum of artificial light at night is important, and we advocate the use of nighttime lighting with warmer color temperatures of 3000 K instead of 5000 K to decrease energetic costs for avian taxa.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.