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Author Chaves, I.; Pokorny, R.; Byrdin, M.; Hoang, N.; Ritz, T.; Brettel, K.; Essen, L.-O.; van der Horst, G.T.J.; Batschauer, A.; Ahmad, M. url  doi
openurl 
  Title The cryptochromes: blue light photoreceptors in plants and animals Type Journal Article
  Year 2011 Publication Annual Review of Plant Biology Abbreviated Journal Annu Rev Plant Biol  
  Volume 62 Issue Pages 335-364  
  Keywords Adenosine Triphosphate/metabolism; Animals; Cryptochromes/chemistry/classification/*physiology; DNA Repair; Deoxyribodipyrimidine Photo-Lyase/chemistry/classification/physiology; Homing Behavior; Insects/physiology; *Light Signal Transduction; Magnetics; Mice; Oxidation-Reduction; Phosphorylation/physiology; Plants/*metabolism; blue light  
  Abstract Cryptochromes are flavoprotein photoreceptors first identified in Arabidopsis thaliana, where they play key roles in growth and development. Subsequently identified in prokaryotes, archaea, and many eukaryotes, cryptochromes function in the animal circadian clock and are proposed as magnetoreceptors in migratory birds. Cryptochromes are closely structurally related to photolyases, evolutionarily ancient flavoproteins that catalyze light-dependent DNA repair. Here, we review the structural, photochemical, and molecular properties of cry-DASH, plant, and animal cryptochromes in relation to biological signaling mechanisms and uncover common features that may contribute to better understanding the function of cryptochromes in diverse systems including in man.  
  Address Department of Genetics, Erasmus University Medical Center, 3000 CA Rotterdam, The Netherlands. i.chaves@erasmusmc.nl  
  Corporate Author Thesis  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1543-5008 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:21526969 Approved no  
  Call Number IDA @ john @ Serial 341  
Permanent link to this record
 

 
Author Costin, K.J.; Boulton, A.M. url  doi
openurl 
  Title A Field Experiment on the Effect of Introduced Light Pollution on Fireflies (Coleoptera: Lampyridae) in the Piedmont Region of Maryland Type Journal Article
  Year 2016 Publication The Coleopterists Bulletin Abbreviated Journal The Coleopterists Bulletin  
  Volume 70 Issue 1 Pages 84-86  
  Keywords Animals; insects; fireflies; Coleoptera; Lampyridae; Coleoptera Lampyridae; artificial light at night; ecology; light pollution  
  Abstract (none)  
  Address Environmental Biology Hood College 401 Rosemont Avenue Frederick, MD 21701, U.S.A.; kjc(at)hood.edu  
  Corporate Author Thesis  
  Publisher BioOne Place of Publication Editor  
  Language English Summary Language English Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0010-065X ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number IDA @ john @ Serial 1406  
Permanent link to this record
 

 
Author Dacke, M.; Baird, E.; Byrne, M.; Scholtz, C.H.; Warrant, E.J. url  doi
openurl 
  Title Dung beetles use the Milky Way for orientation Type Journal Article
  Year 2013 Publication Current Biology : CB Abbreviated Journal Curr Biol  
  Volume 23 Issue 4 Pages 298-300  
  Keywords Animals; Beetles/*physiology; *Behavior, Animal; Cues; Feces; *Galaxies; Locomotion; Moon; Motor Activity; Orientation/*physiology; *Stars, Celestial; Vision, Ocular/physiology; Milky Way; insects  
  Abstract When the moon is absent from the night sky, stars remain as celestial visual cues. Nonetheless, only birds, seals, and humans are known to use stars for orientation. African ball-rolling dung beetles exploit the sun, the moon, and the celestial polarization pattern to move along straight paths, away from the intense competition at the dung pile. Even on clear moonless nights, many beetles still manage to orientate along straight paths. This led us to hypothesize that dung beetles exploit the starry sky for orientation, a feat that has, to our knowledge, never been demonstrated in an insect. Here, we show that dung beetles transport their dung balls along straight paths under a starlit sky but lose this ability under overcast conditions. In a planetarium, the beetles orientate equally well when rolling under a full starlit sky as when only the Milky Way is present. The use of this bidirectional celestial cue for orientation has been proposed for vertebrates, spiders, and insects, but never proven. This finding represents the first convincing demonstration for the use of the starry sky for orientation in insects and provides the first documented use of the Milky Way for orientation in the animal kingdom.  
  Address Department of Biology, Lund University, 223 62 Lund, Sweden. marie.dacke@biol.lu.se  
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  Language English Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 0960-9822 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:23352694 Approved no  
  Call Number IDA @ john @ Serial 116  
Permanent link to this record
 

 
Author Degen, T.; Hovestadt, T.; Mitesser, O.; Hölker, F. url  doi
openurl 
  Title Altered sex-specific mortality and female mating success: ecological effects and evolutionary responses Type Journal Article
  Year 2017 Publication Ecosphere Abbreviated Journal Ecosphere  
  Volume 8 Issue 5 Pages e01820  
  Keywords Insects; nocturnal insects; mating behaviour  
  Abstract Theory predicts that males and females should often join the mating pool at different times (sexual dimorphism in timing of emergence [SDT]) as the degree of SDT affects female mating success. We utilize an analytical model to explore (1) how important SDT is for female mating success, (2) how mating success might change if either sex's mortality (abruptly) increases, and (3) to what degree evolutionary responses in SDT may be able to mitigate the consequences of such mortality increase. Increasing male pre-mating mortality has a non-linear effect on the fraction of females mated: The effect is initially weak, but at some critical level a further increase in male mortality has a stronger effect than a similar increase in female mortality. Such a change is expected to impose selection for reduced SDT. Increasing mortality during the mating season has always a stronger effect on female mating success if the mortality affects the sex that emerges first. This bias results from the fact that enhancing mortality of the earlier emerging sex reduces femaleâ??male encounter rates. However, an evolutionary response in SDT may effectively mitigate such consequences. Further , if considered independently for females and males, the predicted evolutionary response in SDT could be quite dissimilar. The difference between female and male evolutionary response in SDT leads to marked differences in the fraction of fertilized females under certain conditions. Our model may provide general guidelines for improving harvesting of populations, conservation management of rare species under altered environmental conditions, or maintaining long-term efficiency of pest-control measures.  
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  ISSN 2150-8925 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number LoNNe @ schroer @ Serial 1663  
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Author Foster, J.J.; Kirwan, J.D.; El Jundi, B.; Smolka, J.; Khaldy, L.; Baird, E.; Byrne, M.J.; Nilsson, D.-E.; Johnsen, S.; Dacke, M. url  doi
openurl 
  Title Orienting to polarized light at night – matching lunar skylight to performance in a nocturnal beetle Type Journal Article
  Year 2019 Publication The Journal of Experimental Biology Abbreviated Journal J Exp Biol  
  Volume 222 Issue Pt 2 Pages jeb188532  
  Keywords Animals; Natural skylight; insects; South African dung beetle; Escarabaeus satyrus; polarized light; Orientation  
  Abstract For polarized light to inform behaviour, the typical range of degrees of polarization observable in the animal's natural environment must be above the threshold for detection and interpretation. Here, we present the first investigation of the degree of linear polarization threshold for orientation behaviour in a nocturnal species, with specific reference to the range of degrees of polarization measured in the night sky. An effect of lunar phase on the degree of polarization of skylight was found, with smaller illuminated fractions of the moon's surface corresponding to lower degrees of polarization in the night sky. We found that the South African dung beetle Escarabaeus satyrus can orient to polarized light for a range of degrees of polarization similar to that observed in diurnal insects, reaching a lower threshold between 0.04 and 0.32, possibly as low as 0.11. For degrees of polarization lower than 0.23, as measured on a crescent moon night, orientation performance was considerably weaker than that observed for completely linearly polarized stimuli, but was nonetheless stronger than in the absence of polarized light.  
  Address Lund Vision Group, Department of Biology, Lund University, Solvegatan 35, 223 62 Lund, Sweden  
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  Language English Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 0022-0949 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:30530838 Approved no  
  Call Number GFZ @ kyba @ Serial 2599  
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