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Mayflies are least attracted to vertical polarization: A polarotactic reaction helping to avoid unsuitable habitats

Farkas, Alexandra ; Száz, Dénes ; Egri, Ádám ; Barta, András ; Mészáros, Ádám ; Hegedüs, Ramón ; Horváth, Gábor

Physiology & Behavior, 01 September 2016, Vol.163, pp.219-227 [Rivista Peer Reviewed]

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  • Titolo:
    Mayflies are least attracted to vertical polarization: A polarotactic reaction helping to avoid unsuitable habitats
  • Autore: Farkas, Alexandra ; Száz, Dénes ; Egri, Ádám ; Barta, András ; Mészáros, Ádám ; Hegedüs, Ramón ; Horváth, Gábor
  • Note di contenuto: 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...
  • Fa parte di: Physiology & Behavior, 01 September 2016, Vol.163, pp.219-227
  • Soggetti: Mayfly ; Ephoron Virgo ; Caenis Robusta ; Polarotaxis ; Water Surface ; Reflection Polarization ; Mayfly ; Ephoron Virgo ; Caenis Robusta ; Polarotaxis ; Water Surface ; Reflection Polarization ; Anatomy & Physiology ; Psychology
  • Lingua: Inglese
  • Tipo: Articolo
  • Identificativo: ISSN: 0031-9384 ; E-ISSN: 1873-507X ; DOI: 10.1016/j.physbeh.2016.05.009

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