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Author Correa-Cano, M.E.; Goettsch, B.; Duffy, J.P.; Bennie, J.; Inger, R.; Gaston, K.J. url  doi
openurl 
  Title (up) Erosion of natural darkness in the geographic ranges of cacti Type Journal Article
  Year 2018 Publication Scientific Reports Abbreviated Journal Sci Rep  
  Volume 8 Issue 1 Pages 4347  
  Keywords Plants; Remote Sensing  
  Abstract Naturally dark nighttime environments are being widely eroded by the introduction of artificial light at night (ALAN). The biological impacts vary with the intensity and spectrum of ALAN, but have been documented from molecules to ecosystems. How globally severe these impacts are likely to be depends in large part on the relationship between the spatio-temporal distribution of ALAN and that of the geographic ranges of species. Here, we determine this relationship for the Cactaceae family. Using maps of the geographic ranges of cacti and nighttime stable light composite images for the period 1992 to 2012, we found that a high percentage of cactus species were experiencing ALAN within their ranges in 1992, and that this percentage had increased by 2012. For almost all cactus species (89.7%) the percentage of their geographic range that was lit increased from 1992-1996 to 2008-2012, often markedly. There was a significant negative relationship between the species richness of an area, and that of threatened species, and the level of ALAN. Cacti could be particularly sensitive to this widespread and ongoing intrusion of ALAN into their geographic ranges, especially when considering the potential for additive and synergistic interactions with the impacts of other anthropogenic pressures.  
  Address Environment and Sustainability Institute, University of Exeter, Penryn, Cornwall, TR10 9FE, UK  
  Corporate Author Thesis  
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  Language English Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 2045-2322 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:29531261; PMCID:PMC5847551 Approved no  
  Call Number GFZ @ kyba @ Serial 1824  
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Author Lumsden, P. J., & Furuya, M. url  doi
openurl 
  Title (up) Evidence for Two Actions of Light in the Photoperiodic Induction of Flowering in <italic>Pharbitis nil</italic> Type Journal Article
  Year 1986 Publication Plant and Cell Physiology Abbreviated Journal  
  Volume Issue Pages  
  Keywords Plants  
  Abstract Using one-day-old light-grown seedlings of Pharbitis nil we have shown that there are two distinct responses to light during the inductive dark period. The first is the classic night-break, which inhibits flowering at a specific stage of the circadian rhythm (assumed to be the basis of dark time measurement). The second action is to control the phase of this rhythm. The two responses were compared at the 6th and 8th hour of darkness. They differed in their dose responses, and by using very short exposures it was possible to achieve one response without the other. The response of the rhythm to light displayed characteristics of other circadian rhythms; the direction and sensitivity of the phase shift changed between the 6th and 8th h, the rhythm was reset by longer exposures to light, and with one critical light treatment at the appropriate phase, the rhythm was apparently abolished. These results offer direct support for an external coincidence model in the photoperiodic control of floral induction.  
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  ISSN 1471-9053 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number IDA @ intern @ Serial 2375  
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Author Falcon, J.; Torriglia, A.; Attia, D.; Vienot, F.; Gronfier, C.; Behar-Cohen, F.; Martinsons, C.; Hicks, D. url  doi
openurl 
  Title (up) Exposure to Artificial Light at Night and the Consequences for Flora, Fauna, and Ecosystems Type Journal Article
  Year 2020 Publication Frontiers in Neuroscience Abbreviated Journal Front Neurosci  
  Volume 14 Issue Pages 602796  
  Keywords Review; Animals; Plants; Ecology; anthropogenic impact; artificial-light-at-night; biological clocks; ecosystems; light-emitting-diodes; photoreception  
  Abstract The present review draws together wide-ranging studies performed over the last decades that catalogue the effects of artificial-light-at-night (ALAN) upon living species and their environment. We provide an overview of the tremendous variety of light-detection strategies which have evolved in living organisms – unicellular, plants and animals, covering chloroplasts (plants), and the plethora of ocular and extra-ocular organs (animals). We describe the visual pigments which permit photo-detection, paying attention to their spectral characteristics, which extend from the ultraviolet into infrared. We discuss how organisms use light information in a way crucial for their development, growth and survival: phototropism, phototaxis, photoperiodism, and synchronization of circadian clocks. These aspects are treated in depth, as their perturbation underlies much of the disruptive effects of ALAN. The review goes into detail on circadian networks in living organisms, since these fundamental features are of critical importance in regulating the interface between environment and body. Especially, hormonal synthesis and secretion are often under circadian and circannual control, hence perturbation of the clock will lead to hormonal imbalance. The review addresses how the ubiquitous introduction of light-emitting diode technology may exacerbate, or in some cases reduce, the generalized ever-increasing light pollution. Numerous examples are given of how widespread exposure to ALAN is perturbing many aspects of plant and animal behaviour and survival: foraging, orientation, migration, seasonal reproduction, colonization and more. We examine the potential problems at the level of individual species and populations and extend the debate to the consequences for ecosystems. We stress, through a few examples, the synergistic harmful effects resulting from the impacts of ALAN combined with other anthropogenic pressures, which often impact the neuroendocrine loops in vertebrates. The article concludes by debating how these anthropogenic changes could be mitigated by more reasonable use of available technology – for example by restricting illumination to more essential areas and hours, directing lighting to avoid wasteful radiation and selecting spectral emissions, to reduce impact on circadian clocks. We end by discussing how society should take into account the potentially major consequences that ALAN has on the natural world and the repercussions for ongoing human health and welfare.  
  Address Inserm, CNRS, Institut des Neurosciences Cellulaires et Integratives, Universite de Strasbourg, Strasbourg, France  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1662-453X ISBN Medium  
  Area Expedition Conference  
  Notes PMID:33304237; PMCID:PMC7701298 Approved no  
  Call Number GFZ @ kyba @ Serial 3245  
Permanent link to this record
 

 
Author Myers, L.; Christian, K.; Kirchner, R. url  doi
openurl 
  Title (up) Flowering responses of 48 lines of oilseed rape (Brassica spp.) to vernalization and daylength Type Journal Article
  Year 1982 Publication Australian Journal of Agricultural Research Abbreviated Journal Aust. J. Agric. Res.  
  Volume 33 Issue 6 Pages 927  
  Keywords Plants  
  Abstract Forty-eight lines of Brassica spp, of diverse origins were grown in the glasshouse either under natural daylengths or daylengths extended to 16 h by artificial illumination. Plants were either unvernalized or had been subjected to 6 weeks at 8¦C day and 6¦C night temperatures as seedlings. Lines could be classified into two major groups, according to whether or not vernalization or long photoperiods were essential for 50% flowering within 21 weeks. In six lines, both vernalization and long days were essential for prompt flowering, while only five lines did not respond to either treatment. Strong interactions between lines and treatments were found in the number of leaves and subtended buds at flowering. The results show that a wide range of responses is obtainable from material currently available, offering considerabk, scope for adaptation to different environments.  
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  Series Volume Series Issue Edition  
  ISSN 0004-9409 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number IDA @ intern @ Serial 2369  
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Author Lang, M.; Lichtenthaler, H.K.; Sowinska, M.; Heisel, F.; Miehé, J.A. url  doi
openurl 
  Title (up) Fluorescence Imaging of Water and Temperature Stress in Plant Leaves Type Journal Article
  Year 1996 Publication Journal of Plant Physiology Abbreviated Journal Journal of Plant Physiology  
  Volume 148 Issue 5 Pages 613-621  
  Keywords Plants  
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  Series Volume Series Issue Edition  
  ISSN 0176-1617 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number LoNNe @ kagoburian @ Serial 656  
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