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NUITFRANCE - Bibliothèque - Fiche bibliographique
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Document " Mayflies are least attracted to vertical polarization: A polarotactic reaction helping to avoid unsuitable habitats "
Type de document : |
Articles de revue scientifique |
Thème du document : |
Nuit naturelle - Sens et orientation du vivant |
Groupe biologique : |
Invertébrés terrestres |
Auteur(s) : |
FARKAS A. SZAZ D. EGRI A. BARTA A. MESZAROS A. HEGEDUS R. HORVATH G. KRISKA G.
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Date de publication : |
Septembre 2016 |
Langue : |
English/Anglais |
Nom du périodique : |
Physiology & Behavior |
Précisions : |
Volume 163. Pages 219-227 |
Lien contenu/source : |
http://www.sciencedirect.com/science/article/pii/S... |
DOI : |
10.1016/j.physbeh.2016.05.009 |
Mots-clefs : |
Caenis robusta Ephoron virgo Mayfly Reflection polarization Water surface
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Citation courte : |
Farkas et al. (2016) |
Citation complète (format NuitFrance) : |
FARKAS A., SZAZ D. , EGRI A., BARTA A., MESZAROS A., HEGEDUS R., HORVATH G. & KRISKA G. (2016). Mayflies are least attracted to vertical polarization: A polarotactic reaction helping to avoid unsuitable habitats. Physiology & Behavior. Volume 163. Pages 219-227. |
Résumé du document : |
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Like other aquatic insects, mayflies are positively polarotactic and locate water surfaces by means of the horizontal polarization of water-reflected light. However, may vertically polarized light also have implications for the swarming behaviour of mayflies? To answer this question, we studied in four field experiments the behavioural responses of Ephoron virgo and Caenis robusta mayflies to lamps emitting horizontally and vertically polarized and unpolarized light. In both species, unpolarized light induces positive phototaxis, horizontally polarized light elicits positive photo- and polarotaxis, horizontally polarized light is much more attractive than unpolarized light, and vertically polarized light is the least attractive if the stimulus intensities and spectra are the same. Vertically polarized light was the most attractive for C. robusta if its intensity was about two and five times higher than that of the unpolarized and horizontally polarized stimuli, respectively. We suggest that the mayfly behaviour observed in our experiments may facilitate the stability of swarming above water surfaces. Beside the open water surface reflecting horizontally polarized light, the shadow and mirror image of riparian vegetation at the edge of the water surface reflect weakly and non-horizontally (mainly vertically) polarized light. Due to their positive polarotaxis, flying mayflies remain continuously above the water surface, because they keep away from the unpolarized or non-horizontally polarizing edge regions (water surface and coast line) of water bodies. We also discuss how our findings can explain the regulation of mayfly colonization.
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Saisie sur NuitFrance par : |
Rosor |
Saisie sur NuitFrance en : |
Octobre 2017 |
Identifiant NuitFrance : |
NF-BIBLI-1715 |
Permalien de la fiche NuitFrance : |
http://www.nuitfrance.fr/?page=donneesdoc&partie=fiche-bibliographique&id_doc=1715 |
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