ReviewClocks & sleep2021
Light, Sleep and Performance in Diurnal Birds.
Review in Clocks & sleep, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.
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
12 citing papers in PubMed, 1 synthesis or guideline pooled it, 39 citations in OpenAlex.
- Artificial Light at Night Consistently Impacts Avian Physiology and Behaviour: A Meta-Analysis.Ecology letters · 2026Pooled it
- The ecological importance of natural dark nights for circadian organization, metabolism and reproduction in birds.BMC ecology and evolution · 2026Review
- The Influence of Different Light Spectra on Broiler Chicken Endocrine Systems and Productivity.Animals : an open access journal from MDPI · 2025Review
- The effects of sleep disturbance on a songbird's vocal performance.Proceedings. Biological sciences · 2025Article
- A valuation based theory of learning's origin and development.Frontiers in systems neuroscience · 2025Article
- Investigation of the reproductive behavior of Tarim pigeons.Archives animal breeding · 2025Article
- Experimental playback of urban noise does not affect cognitive performance in captive Australian magpies.Biology open · 2024Article
- Integrated Transcriptomic-Metabolomic Analysis Reveals the Effect of Different Light Intensities on Ovarian Development in Chickens.International journal of molecular sciences · 2024Article
- Anthropogenic disturbance affects calling and collective behaviour in corvid roosts.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024Article
- Importance of sleep for avian vocal communication.Biology letters · 2022Review
- Nocturnal lighting in animal research should be replicable and reflect relevant ecological conditions.Biology letters · 2022Review
- Central Nervous System Associated With Light Perception and Physiological Responses of Birds.Frontiers in physiology · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Sleep has a multitude of benefits and is generally considered necessary for optimal performance. Disruption of sleep by extended photoperiods, moonlight and artificial light could therefore impair performance in humans and non-human animals alike. Here, we review the evidence for effects of light on sleep and subsequent performance in birds. There is accumulating evidence that exposure to natural and artificial sources of light regulates and suppresses sleep in diurnal birds. Sleep also benefits avian cognitive performance, including during early development. Nevertheless, multiple studies suggest that light can prolong wakefulness in birds without impairing performance. Although there is still limited research on this topic, these results raise intriguing questions about the adaptive value of sleep. Further research into the links between light, sleep and performance, including the underlying mechanisms and consequences for fitness, could shed new light on sleep evolution and urban ecology.
Indexed as
Identifiers
What OpenQuestion holds
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.