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Author Kim, K.‐N.; Sin, U.‐C.; Jo, Y.‐C.; Huang, Z.‐J.; Hassan, A.; Huang, Q.‐Y.; Lei, C.‐L. url  doi
openurl 
  Title Influence of green light at night on Juvenile hormone in the oriental armywormMythimna separata(Lepidoptera: Noctuidae) Type Journal Article
  Year (down) 2019 Publication Physiological Entomology Abbreviated Journal Physiol. Entomol.  
  Volume in press Issue Pages  
  Keywords Animals  
  Abstract The oriental armyworm Mythimna separata is an agricultural insect pest in Eastern Asia. Mythimna separata moths have a high phototactic response to green (520 nm) light. The biological characteristics of insects living under light of a specific wavelength at night can change and, accordingly, Juvenile hormone (JH) levels may be influenced by this light. The present study evaluates changes in the total JH levels at different developmental stages (larvae, pupae and adults) of M. separata reared under green light with different exposure periods at night (or dark period). The results show that, when the exposure time per day of the green light at night is extended, the JH levels in the final‐instar larvae (22 days) and older age pupae (8 days) are significantly reduced, and the JH levels in earlier age pupae (4 days) and adults (3, 6 and 9 days) are significantly increased, compared with groups not exposed to green light. Additionally, the JH level of male moths significantly differs from that of the female moths. We suggest that the JH level of M. separata insects could be regulated by the green light at night (or dark period). The findings of the present study will help to explain the relationship between the light environment and biological characteristics in nocturnal moths.  
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  ISSN 0307-6962 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number GFZ @ kyba @ Serial 2596  
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Author Horton, K.G.; Nilsson, C.; Van Doren, B.M.; La Sorte, F.A.; Dokter, A.M.; Farnsworth, A. url  doi
openurl 
  Title Bright lights in the big cities: migratory birds’ exposure to artificial light Type Journal Article
  Year (down) 2019 Publication Frontiers in Ecology and the Environment Abbreviated Journal Front Ecol Environ  
  Volume in press Issue Pages  
  Keywords Animals  
  Abstract Many species of migratory birds have evolved the ability to migrate at night, and the recent and rapid expansion of artificial light at night has markedly altered the nighttime sky through which they travel. Migrating birds regularly pass through heavily illuminated landscapes, and bright lights affect avian orientation. But risks to migrating birds from artificial light are not spatially or temporally uniform, representing a challenge for mitigating potential hazards and developing action plans to catalog risks at continental scales. We leveraged over two decades of remote‐sensing data collected by weather surveillance radar and satellite‐based sensors to identify locations and times of year when the highest numbers of migrating birds are exposed to light pollution in the contiguous US. Our continental‐scale quantification of light exposure provides a novel opportunity for dynamic and targeted conservation strategies to address the hazards posed by light pollution to nocturnally migrating birds.  
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  ISSN 1540-9295 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number GFZ @ kyba @ Serial 2285  
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Author Winger, B.M.; Weeks, B.C.; Farnsworth, A.; Jones, A.W.; Hennen, M.; Willard, D.E. url  doi
openurl 
  Title Nocturnal flight-calling behaviour predicts vulnerability to artificial light in migratory birds Type Journal Article
  Year (down) 2019 Publication Proceedings. Biological Sciences Abbreviated Journal Proc Biol Sci  
  Volume 286 Issue 1900 Pages 20190364  
  Keywords animals  
  Abstract Understanding interactions between biota and the built environment is increasingly important as human modification of the landscape expands in extent and intensity. For migratory birds, collisions with lighted structures are a major cause of mortality, but the mechanisms behind these collisions are poorly understood. Using 40 years of collision records of passerine birds, we investigated the importance of species' behavioural ecologies in predicting rates of building collisions during nocturnal migration through Chicago, IL and Cleveland, OH, USA. We found that the use of nocturnal flight calls is an important predictor of collision risk in nocturnally migrating passerine birds. Species that produce flight calls during nocturnal migration tended to collide with buildings more than expected given their local abundance, whereas those that do not use such communication collided much less frequently. Our results suggest that a stronger attraction response to artificial light at night in species that produce flight calls may mediate these differences in collision rates. Nocturnal flight calls probably evolved to facilitate collective decision-making during navigation, but this same social behaviour may now exacerbate vulnerability to a widespread anthropogenic disturbance. Our results also suggest that social behaviour during migration may reflect poorly understood differences in navigational mechanisms across lineages of birds.  
  Address 4 Gantz Family Collections Center, The Field Museum , 1400 South Lake Shore Drive, Chicago, IL 60605 , USA  
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  Language English Summary Language Original Title  
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  ISSN 0962-8452 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:30940055 Approved no  
  Call Number GFZ @ kyba @ Serial 2287  
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Author Lundberg, L.; Sienkiewicz, Z.; Anthony, D.C.; Broom, K.A. url  doi
openurl 
  Title Effects of 50 Hz magnetic fields on circadian rhythm control in mice Type Journal Article
  Year (down) 2019 Publication Bioelectromagnetics Abbreviated Journal Bioelectromagnetics  
  Volume in press Issue Pages  
  Keywords Animals  
  Abstract Artificial light and power frequency magnetic fields are ubiquitous in the built environment. Light is a potent zeitgeber but it is unclear whether power frequency magnetic fields can influence circadian rhythm control. To study this possibility, 8-12-week-old male C57BL/6J mice were exposed for 30 min starting at zeitgeber time 14 (ZT14, 2 h into the dark period of the day) to 50 Hz magnetic fields at 580 muT using a pair of Helmholtz coils and/or a blue LED light at 700 lux or neither. Our experiments revealed an acute adrenal response to blue light, in terms of increased adrenal per1 gene expression, increased serum corticosterone levels, increased time spent sleeping, and decreased locomotor activity (in all cases, P < 0.0001) compared to an unexposed control group. There appeared to be no modulating effect of the magnetic fields on the response to light, and there was also no effect of the magnetic fields alone (in both cases, P > 0.05) except for a decrease in locomotor activity (P < 0.03). Gene expression of the cryptochromes cry1 and cry2 in the adrenals, liver, and hippocampus was also not affected by exposures (in all cases, P > 0.05). In conclusion, these results suggest that 50 Hz magnetic fields do not significantly affect the acute light response to a degree that can be detected in the adrenal response. Bioelectromagnetics. 2019;9999:XX-XX. (c) 2019 Bioelectromagnetics Society.  
  Address Public Health England, Chilton, United Kingdom  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0197-8462 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:30945762 Approved no  
  Call Number GFZ @ kyba @ Serial 2289  
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Author Saini, C.; Hutton, P.; Gao, S.; Simpson, R.K.; Giraudeau, M.; Sepp, T.; Webb, E.; McGraw, K.J. url  doi
openurl 
  Title Exposure to artificial light at night increases innate immune activity during development in a precocial bird Type Journal Article
  Year (down) 2019 Publication Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology Abbreviated Journal Comp Biochem Physiol A Mol Integr Physiol  
  Volume in press Issue Pages  
  Keywords Animals  
  Abstract Humans have greatly altered Earth's night-time photic environment via the production of artificial light at night (ALAN; e.g. street lights, car traffic, billboards, lit buildings). ALAN is a problem of growing importance because it may significantly disrupt the seasonal and daily physiological rhythms and behaviors of animals. There has been considerable interest in the impacts of ALAN on health of humans and other animals, but most of this work has centered on adults and we know comparatively little about effects on young animals. We exposed 3-week-old king quail (Excalfactoria chinensis) to a constant overnight blue-light regime for 6weeks and assessed weekly bactericidal activity of plasma against Escherichia coli – a commonly employed metric of innate immunity in animals. We found that chronic ALAN exposure significantly increased bactericidal activity and that this elevation in immune performance manifested at different developmental time points in males and females. Whether this short-term increase in immune activity can be extended to wild animals, and whether ALAN-mediated increases in immune activity have positive or negative fitness effects are unknown and will provide interesting avenues for future studies.  
  Address School of Life Sciences, Arizona State University, Tempe, AZ 85287, United States of America. Electronic address: Kevin.McGraw@asu.edu  
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  Language English Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 1095-6433 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:30974186 Approved no  
  Call Number GFZ @ kyba @ Serial 2291  
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