Results 41 to 50 of about 1,724,600 (198)

Ecological effects of artificial light at night on wild plants [PDF]

open access: yes, 2016
PublishedSummary 1.Plants use light as a source of both energy and information. Plant physiological responses to light, and interactions between plants and animals (such as herbivory and pollination), have evolved under a more or less stable regime of ...
Bennie, Jonathan   +3 more
core   +1 more source

Temperature Stability of the Sky Quality Meter

open access: yesSensors, 2013
The stability of radiance measurements taken by the Sky Quality Meter (SQM)was tested under rapidly changing temperature conditions during exposure to a stable lightfield in the laboratory.
Christopher C.M. Kyba   +4 more
doaj   +1 more source

Illuminating the deleterious effects of light at night [PDF]

open access: yesF1000 Medicine Reports, 2011
Technological advances, while providing many benefits, often create circumstances that differ from the conditions in which we evolved. With the wide-spread adoption of electrical lighting during the 20(th) century, humans became exposed to bright and unnatural light at night for the first time in their evolutionary history.
Fonken, Laura K., Nelson, Randy J.
openaire   +2 more sources

Imaging and mapping the impact of clouds on skyglow with all-sky photometry [PDF]

open access: yes, 2017
Artificial skyglow is constantly growing on a global scale, with potential ecological consequences ranging up to affecting biodiversity. To understand these consequences, worldwide mapping of skyglow for all weather conditions is urgently required.
Hölker, Franz   +5 more
core   +2 more sources

Turning to the dark side: LED light at night alters the activity and species composition of a foraging bat assemblage in the northeastern United States

open access: yesEcology and Evolution, 2021
Artificial light at night (ALAN) is a rapidly intensifying form of environmental degradation that can impact wildlife by altering light‐mediated physiological processes that control a broad range of behaviors.
Chad L. Seewagen, Amanda M. Adams
doaj   +1 more source

Exposure to a nocturnal light pulse simultaneously and differentially affects stridulation and locomotion behaviors in crickets

open access: yesFrontiers in Physiology, 2023
It is crucial for living organisms to be in synchrony with their environment and to anticipate circadian and annual changes. The circadian clock is responsible for entraining organisms’ activity to the day-night rhythmicity.
Keren Levy   +3 more
doaj   +1 more source

Artificial light at night: a global disruptor of the night-time environment

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2023
Light pollution is the alteration of the natural levels of darkness by an increased concentration of light particles in the night-time environment, resulting from human activity. Light pollution is profoundly changing the night-time environmental conditions across wide areas of the planet, and is a relevant stressor whose effects on life are being ...
Salvador Bará, Fabio Falchi
openaire   +3 more sources

XMM-Newton observations of UW CrB -- detection of X-ray bursts and evidence for accretion disc evolution

open access: yes, 2004
UW CrB (MS1603+2600) is a peculiar short period X-ray binary that exhibits extraordinary optical behaviour. The optical light curve shape of the system changes drastically from night to night, without any changes in overall brightness.
Callanan   +24 more
core   +1 more source

Day-night differences in Cunene horse mackerel (Trachurus trecae) acoustic relative densities off Angola [PDF]

open access: yes, 2010
The assessment and the management of the Cunene horse mackerel in Angola rely heavily on abundance estimates from hydroacoustic surveys. Acoustic data collected from 1994 to 1999 were analysed to quantify diurnal variation in relative acoustic densities ...
Axelsen, Bjorn Erik   +2 more
core   +2 more sources

Mapping the Melatonin Suppression, Star Light and Induced Photosynthesis Indices with the LANcube

open access: yesRemote Sensing, 2020
Increased exposure to artificial light at night can affect human health including disruption of melatonin production and circadian rhythms which can extend to increased risks of hormonal cancers and other serious diseases.
Martin Aubé   +7 more
doaj   +1 more source

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