Results 21 to 30 of about 1,724,600 (198)

Impact of Light at Night Is Phase Dependent: A Study on Migratory Redheaded Bunting (Emberiza bruniceps)

Frontiers in Ecology and Evolution, 2021
Artificial light at night (LAN) alters the physiology and behavior of an organism; however, very little is known about phase-dependent effects of LAN, particularly, in night migratory songbirds.
Jayant Kumar, Shalie Malik, Sanjay Kumar Bhardwaj, Sangeeta Rani   +3 more
doaj   +1 more source

Streetlights Disrupt Night-Time Sleep in Urban Black Swans

Frontiers in Ecology and Evolution, 2020
Artificial light at night could have widespread and detrimental impacts on sleep. To reduce disruptive effects of artificial light on sleep in humans, most smartphones and computers now have software that reduces blue light emissions at night.
Anne E. Aulsebrook, Anne E. Aulsebrook, John A. Lesku, Raoul A. Mulder, Wolfgang Goymann, Alexei L. Vyssotski, Therésa M. Jones   +6 more
doaj   +1 more source

Photometric Variability of the T2.5 Brown Dwarf SIMP J013656.5+093347; Evidence for Evolving Weather Patterns [PDF]

, 2009
We report the discovery of a photometric variability in the bright T2.5 brown dwarf SIMP J013656.5+093347. Continuous J-band photometry has been obtained for several hours on four different nights.
Ackerman, Allard, Artigau, Basri, Burgasser, Burrows, David Lafrenière, Enoch, Gelino, Liu, Martín, Morales-Calderón, René Doyon, Sandie Bouchard, Skrutskie, Terndrup, Tsuji, Tsuji, Vrba, Zapatero Osorio, Étienne Artigau   +20 more
core   +1 more source

Artificial light at night affects plant–herbivore interactions

Journal of Applied Ecology, 2022
Abstract Artificial light at night (ALAN) affects species' physiology and behaviour, and the interactions between species. Despite the importance of plants as primary producers, it remains poorly understood whether and how effects of ALAN on plants cascade through the food web.
Ellen Cieraad, Emily Strange, Melanie Flink, Maarten Schrama, Kamiel Spoelstra   +4 more
openaire   +2 more sources

Methods for Assessment and Monitoring of Light Pollution around Ecologically Sensitive Sites

Journal of Imaging, 2019
Since the introduction of electric lighting over a century ago, and particularly in the decades following the Second World War, indications of artificial light on the nighttime Earth as seen from Earth orbit have increased at a rate exceeding that of ...
John C. Barentine
doaj   +1 more source

Salivary melatonin onset in youth at familial risk for bipolar disorder [PDF]

, 2019
Melatonin secretion and polysomnography (PSG) were compared among a group of healthy adolescents who were at high familial risk for bipolar disorder (HR) and a second group at low familial risk (LR).
Armitage, Roseanne, Bertram, Holli, Fullerton, Janice M., Ghaziuddin, Neera, Glowinski, Anne L., Hulvershorn, Leslie A., Kamali, Masoud, McInnis, Melvin, Mitchell, Philip B., Nurnberger, John, Roberts, Gloria M. P., Shamseddeen, Wael, Stapp, Emma, Wilcox, Holly C.   +13 more
core   +2 more sources

Personal light-at-night exposures and components of variability in two common shift work industries: uses and implications for future research

Scandinavian Journal of Work, Environment & Health, 2018
OBJECTIVES: Shift workers’ increased risk of various adverse health outcomes has been linked to light-at-night (LAN) exposure, but few studies have measured LAN exposure in workplaces.
Amy L Hall, Hugh W Davies, Mieke Koehoorn   +2 more
doaj   +1 more source

Artificial light and nocturnal activity in gammarids [PDF]

, 2014
Artificial light is gaining attention as a potential stressor to aquatic ecosystems. Artificial lights located near streams increase light levels experienced by stream invertebrates and we hypothesized light would depress night drift rates.
Berghahn, Rüdiger, Heller, Stefan, Hölker, Franz, Perkin, Elizabeth K.   +3 more
core   +2 more sources

Clouds, shadows, or twilight? Mayfly nymphs recognise the difference [PDF]

, 2006
1. We examined the relative changes in light intensity that initiate night-time locomotor activity changes in nymphs of the mayfly, Stenonema modestum (Heptageniidae).
Allan J.D., Allan J.D., Bishop J.E., Casey R.J., Chaston I., Chaston I., Ciborowski J.J.H., Corkum L.D., Cowan C.A., Daan N., Devoe R.D., Elliott J.M., Haney J.F., Haney J.F., Heise B., Jarvilehto M., Kohler S.L., Lampert W., Lampert W., Lythgoe J.N., McFarland W.N., Metcalfe N.B., O'Keefe T.C., Ringelberg J., Schloss A.L., Scrimgeour G.J., Van Gool E., Wilzbach M.A., Zar J.H., Zaret T.M.   +29 more
core   +3 more sources

A single night light exposure acutely alters hormonal and metabolic responses in healthy participants

Endocrine Connections, 2017
Many animal studies have reported an association between melatonin suppression and the disturbance of metabolic responses; yet, few human studies have investigated bright light effects on metabolic and hormonal responses at night. This study investigated
Mohammed S Albreiki, Benita Middleton, Shelagh M Hampton   +2 more
doaj   +1 more source