|   | 
Details
   web
Records
Author Czeisler, C.A.
Title Perspective: casting light on sleep deficiency Type Journal Article
Year 2013 Publication Nature Abbreviated Journal Nature
Volume (down) 497 Issue 7450 Pages S13
Keywords Human Health; Circadian Rhythm/physiology/radiation effects; Electricity/adverse effects; Humans; Jet Lag Syndrome/etiology/physiopathology/therapy; Lighting/*adverse effects; Melatonin/metabolism/secretion; Phototherapy; Sleep Deprivation/epidemiology/*etiology/*physiopathology/therapy; Suprachiasmatic Nucleus/physiology/radiation effects
Abstract
Address Division of Sleep Medicine, Harvard Medical School, and Division of Sleep Medicine, Department of Medicine, Brigham and Women's Hospital, in Boston, Massachusetts, USA. charles_czeisler@hms.harvard.edu
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0028-0836 ISBN Medium
Area Expedition Conference
Notes PMID:23698501 Approved no
Call Number LoNNe @ christopher.kyba @ Serial 499
Permanent link to this record
 

 
Author Smith, M.
Title Time to turn off the lights Type Journal Article
Year 2009 Publication Nature Abbreviated Journal Nature
Volume (down) 457 Issue 7225 Pages 27
Keywords Editorial; Animal Migration/radiation effects; Animals; Astronomy/trends; Conservation of Energy Resources/economics/trends; *Darkness; Environmental Pollution/*adverse effects/economics/*prevention & control; Equipment Design/trends; Humans; Lighting/*adverse effects/economics
Abstract
Address Cerro Tololo Inter-American Observatory, Casilla 603, La Serena, Chile. msmith@ctio.noao.edu
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0028-0836 ISBN Medium
Area Expedition Conference
Notes PMID:19122621 Approved no
Call Number LoNNe @ christopher.kyba @ Serial 466
Permanent link to this record
 

 
Author Kelber, A.; Balkenius, A.; Warrant, E.J.
Title Scotopic colour vision in nocturnal hawkmoths Type Journal Article
Year 2002 Publication Nature Abbreviated Journal Nature
Volume (down) 419 Issue 6910 Pages 922-925
Keywords Animals; Behavior, Animal; Color; Color Perception/*physiology; Conditioning (Psychology)/physiology; Cues; *Darkness; Discrimination Learning/physiology; Humans; Light; Lighting; Moths/*physiology; Photic Stimulation; Photoreceptor Cells, Invertebrate/physiology; Reward; Sensitivity and Specificity; Ultraviolet Rays
Abstract Humans are colour-blind at night, and it has been assumed that this is true of all animals. But colour vision is as useful for discriminating objects at night as it is during the day. Here we show, through behavioural experiments, that the nocturnal hawkmoth Deilephila elpenor uses colour vision to discriminate coloured stimuli at intensities corresponding to dim starlight (0.0001 cd x m(-2)). It can do this even if the illumination colour changes, thereby showing colour constancy-a property of true colour vision systems. In identical conditions humans are completely colour-blind. Our calculations show that the possession of three photoreceptor classes reduces the absolute sensitivity of the eye, which indicates that colour vision has a high ecological relevance in nocturnal moths. In addition, the photoreceptors of a single ommatidium absorb too few photons for reliable discrimination, indicating that spatial and/or temporal summation must occur for colour vision to be possible. Taken together, our results show that colour vision occurs at nocturnal intensities in a biologically relevant context.
Address Department of Cell and Organism Biology, Vision Group, Lund University, Helgonavagen 3, S-22362 Lund, Sweden. almut.kelber@zool.lu.se
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0028-0836 ISBN Medium
Area Expedition Conference
Notes PMID:12410310 Approved no
Call Number LoNNe @ kagoburian @ Serial 606
Permanent link to this record
 

 
Author Stone, E.L.; Wakefield, A.; Harris, S.; Jones, G.
Title The impacts of new street light technologies: experimentally testing the effects on bats of changing from low-pressure sodium to white metal halide Type Journal Article
Year 2015 Publication Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences Abbreviated Journal Philos Trans R Soc Lond B Biol Sci
Volume (down) 370 Issue Pages 20140127
Keywords Lighting; Animals; bats; mammals; Pipistrellus pipistrellus; Pipistrellus pygmaeus; Nyctalus; Eptesicus; artificial lighting; ecosystem-level effects; Philips CosmoPolis lights; light pollution
Abstract Artificial light at night is a major feature of anthropogenic global change and is increasingly recognized as affecting biodiversity, often negatively. On a global scale, newer technology white lights are replacing orange sodium lights to reduce energy waste. In 2009, Cornwall County Council (UK) commenced replacement of existing low-pressure sodium (LPS) high intensity discharge (HID) street lights with new Phillips CosmoPolis white ceramic metal halide street lights to reduce energy wastage. This changeover provided a unique collaborative opportunity to implement a before-after-control-impact field experiment to investigate the ecological effects of newly installed broad spectrum light technologies. Activity of the bat species Pipistrellus pipistrellus, P. pygmaeus and Nyctalus/Eptesicus spp. was significantly higher at metal halide than LPS lights, as found in other studies of bat activity at old technology (i.e. mercurLighting; artificial lighting; ecosystem-level effects; Philips CosmoPolis lights; light pollutiony vapour) white light types. No significant difference was found in feeding attempts per bat pass between light types, though more passes overall were recorded at metal halide lights. Species-specific attraction of bats to the metal halide lights could have cascading effects at lower trophic levels. We highlight the need for further research on possible ecosystem-level effects of light technologies before they are installed on a wide scale.
Address School of Biological Sciences, University of Bristol, Life Sciences Building, 24 Tyndall Avenue, Bristol BS8 1TQ, UK; emma.stone@bristol.ac.uk
Corporate Author Thesis
Publisher Royal Society Place of Publication Editor
Language English Summary Language English Original Title
Series Editor Series Title The biological impacts of artificial light at night: from molecules to communities Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 1121
Permanent link to this record
 

 
Author Longcore, T.; Aldern, H.L.; Eggers, J.F.; Flores, S.; Franco, L.; Hirshfield-Yamanishi, E.; Petrinec, L.N.; Yan, W.A.; Barroso, A.M.
Title Tuning the white light spectrum of light emitting diode lamps to reduce attraction of nocturnal arthropods Type Journal Article
Year 2015 Publication Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences Abbreviated Journal Philos Trans R Soc Lond B Biol Sci
Volume (down) 370 Issue Pages 20140125
Keywords Lighting; Animals; insects; light emitting diodes; LEDs; arthropods; Phototaxis; indoor lighting; vector-borne disease
Abstract Artificial lighting allows humans to be active at night, but has many unintended consequences, including interference with ecological processes, disruption of circadian rhythms and increased exposure to insect vectors of diseases. Although ultraviolet and blue light are usually most attractive to arthropods, degree of attraction varies among orders. With a focus on future indoor lighting applications, we manipulated the spectrum of white lamps to investigate the influence of spectral composition on number of arthropods attracted. We compared numbers of arthropods captured at three customizable light-emitting diode (LED) lamps (3510, 2704 and 2728 K), two commercial LED lamps (2700 K), two commercial compact fluorescent lamps (CFLs; 2700 K) and a control. We configured the three custom LEDs to minimize invertebrate attraction based on published attraction curves for honeybees and moths. Lamps were placed with pan traps at an urban and two rural study sites in Los Angeles, California. For all invertebrate orders combined, our custom LED configurations were less attractive than the commercial LED lamps or CFLs of similar colour temperatures. Thus, adjusting spectral composition of white light to minimize attracting nocturnal arthropods is feasible; not all lights with the same colour temperature are equally attractive to arthropods.
Address Spatial Sciences Institute, University of Southern California, Los Angeles, CA, USA; longcore@usc.edu
Corporate Author Thesis
Publisher Royal Society Place of Publication Editor
Language English Summary Language English Original Title
Series Editor Series Title The biological impacts of artificial light at night: from molecules to communities Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 1122
Permanent link to this record