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Author van Diepen, H.C.; Foster, R.G.; Meijer, J.H. url  doi
openurl 
  Title (up) A colourful clock Type Journal Article
  Year 2015 Publication PLoS Biology Abbreviated Journal PLoS Biol  
  Volume 13 Issue 5 Pages e1002160  
  Keywords Animals; Commentary; *Circadian Rhythm; suprachiasmatic nuclei; melanopsin; retinal ganglion cells; entrainment; photoperiod  
  Abstract Circadian rhythms are an essential property of life on Earth. In mammals, these rhythms are coordinated by a small set of neurons, located in the suprachiasmatic nuclei (SCN). The environmental light/dark cycle synchronizes (entrains) the SCN via a distinct pathway, originating in a subset of photosensitive retinal ganglion cells (pRGCs) that utilize the photopigment melanopsin (OPN4). The pRGCs are also innervated by rods and cones and, so, are both endogenously and exogenously light sensitive. Accumulating evidence has shown that the circadian system is sensitive to ultraviolet (UV), blue, and green wavelengths of light. However, it was unclear whether colour perception itself can help entrain the SCN. By utilizing both behavioural and electrophysiological recording techniques, Walmsley and colleagues show that multiple photic channels interact and enhance the capacity of the SCN to synchronize to the environmental cycle. Thus, entrainment of the circadian system combines both environmental irradiance and colour information to ensure that internal and external time are appropriately aligned.  
  Address Laboratory for Neurophysiology, Department of Molecular Cell Biology, Leiden University medical School, Leiden, The Netherlands  
  Corporate Author Thesis  
  Publisher PLOS Place of Publication Editor  
  Language English Summary Language English Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1544-9173 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:25996907; PMCID:PMC4440787 Approved no  
  Call Number LoNNe @ christopher.kyba @ Serial 1183  
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Author Kyba, C.C.M.; Lolkema, D.E. url  doi
openurl 
  Title (up) A community standard for recording skyglow data Type Journal Article
  Year 2012 Publication Astronomy & Geophysics Abbreviated Journal Astron Geophys  
  Volume 53 Issue 6 Pages 6.17-6.18  
  Keywords  
  Abstract Christopher Kyba and Dorien Lolkema describe a standard format for recording skyglow data developed by the light at night research community, with the goal of improving data exchange between researchers  
  Address  
  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 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number LoNNe @ christopher.kyba @ Serial 321  
Permanent link to this record
 

 
Author Guanglei, W.; Ngarambe, J.; Kim, G. url  doi
openurl 
  Title (up) A Comparative Study on Current Outdoor Lighting Policies in China and Korea: A Step toward a Sustainable Nighttime Environment Type Journal Article
  Year 2019 Publication Sustainability Abbreviated Journal Sustainability  
  Volume 11 Issue 14 Pages 3989  
  Keywords Lighting; Policy  
  Abstract Light pollution is a serious environmental issue with many adverse effects on human health and the ecosystem as a whole. Accordingly, many countries have issued laws and regulations to limit the effects of artificial lighting at night (ALAN). The Republic of Korea and China are among the few countries that have drafted laws to curb light pollution. In the present study, we gathered data related to light pollution regulations and ordinances in both China and Korea. We then carried out a comparative analysis of the light pollution laws of both countries. We found that, although the two countries share a similar socio-economic background, they have different approaches to the issue of light pollution. The information provided in this study serves as a guideline to countries that wish to develop their own light pollution policies. In addition, the conclusions provided in our study offer potential improvements to local and national light pollution policies in both the Republic of Korea and China.  
  Address  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2071-1050 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number GFZ @ kyba @ Serial 2602  
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Author Petrželková, K. J.; Downs, N. C.; Zukal, J.; Racey, P. A. url  doi
openurl 
  Title (up) A comparison between emergence and return activity in pipistrelle bats Pipistrellus pipistrellus and P. pygmaeus Type Journal Article
  Year 2006 Publication Acta Chiropterologica Abbreviated Journal  
  Volume 8 Issue 2 Pages 381-390  
  Keywords animals; fying mammals: animal behaviour  
  Abstract Bats may be vulnerable to predation during evening emergence and morning return to their roosts. Early emergence increases the risk of exposure to raptorial birds, but emerging late confers a risk of missing the dusk peak of aerial insects. Here, both emergence and return activity was studied in detail at the same roosts for the first time. We investigated six maternity colonies of pipistrelle bats (Pipistrellus pipistrellus and P. pygmaeus) in NE Scotland and recorded light levels and time of emergence and return of the bats with respect to sunset and sunrise on the same nights. Parameters of return activity generally occurred at lower light intensities than those of emergence. Therefore, the interval between dawn return and sunrise was generally longer than that between sunset and dusk emergence. Emergence and return were equal in duration. Bats clustered more on emergence in comparison with return during pregnancy and lactation, whereas during postlactation this trend was reversed.  
  Address  
  Corporate Author Thesis  
  Publisher BioOne Place of Publication Editor  
  Language English Summary Language English Original Title  
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  Area Expedition Conference  
  Notes Approved no  
  Call Number LoNNe @ schroer @ Serial 1598  
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Author Sutton, P.; Roberts, D.; Elvidge, C.; Meij, H. url  openurl
  Title (up) A comparison of nighttime satellite imagery and population density for the continental United States. Type Journal Article
  Year 1997 Publication Photogrammetric Engineering and Remote Sensing Abbreviated Journal  
  Volume 63 Issue 11 Pages 1303–1313  
  Keywords Remote Sensing  
  Abstract  
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  Area Expedition Conference  
  Notes Approved no  
  Call Number LoNNe @ kagoburian @ Serial 974  
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