Nom du corpus

Corpus Systématique Animale

Titre du document

Electrohydrodynamic effects on two species of insects with economic importance to stored food products

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Springer (journals)
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Type de document
Mots-clés d'auteur
  • Tribolium confusum
  • Plodia interpunctella
  • Air ions
  • Corona discharge
  • Electrohydrodynamics
Nom du fichier dans la ressource
  • N. Shayesteh 1
  • N. N. Barthakur 2
  • 1) Department of Entomology, University of Oroumieh, Oroumieh, Iran
  • 2) Department of Natural Resource Sciences, McGill University-Macdonald Campus, 21 111 Lakeshore Road, Ste Anne de Bellevue, H9X 3V9, Quebec, Canada

An electrohydrodynamic (EHD) system which generated air ions within a strong electric field was used to study responses of stored-product insectsTribolium confusum (du Val) andPlodia interpunctella (Hübner). Larval mortality of both species generally increased with increased exposure time to ions of either polarity. The larvae and pupae ofT. confusum suffered a higher mortality rate than the adults. The insects initially exhibited distinct avoiding motions away from regions of high towards low fluxes of air ions of both polarity. Insects moved vigorously, tumbled, flipped, curled up, and aggregated when the EHD system was turned on. The control insects not exposed to air ions survived and showed a total absence of such behaviour. For bipolar exposures, the insects occupied the neutral zone where the effects were minimal due to cancellation of the fields. Prolonged exposures of more than 20 min produced a quiescent state. EHD-enhanced mass transfer of the liquid component from physical objects established in fluid mechanics was invoked as a possible cause for insect mortality and avoiding behaviour to ions. Body fluid losses increased linearly with time of exposure (R 2?0.97) for all biological stages of insect growth. The larvae and pupae ofT. confusum lost 12 and 15% of their body fluids, respectively, after 80 min of exposure to negative air ions. Fluid losses of such a magnitude are likely to have contributed to insect fatality.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - earth & environmental sciences
  • 3 - meteorology & atmospheric sciences
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
Catégories Scopus
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Health, Toxicology and Mutagenesis
  • 1 - Physical Sciences ; 2 - Earth and Planetary Sciences ; 3 - Atmospheric Science
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Ecology
Catégories WoS
  • 1 - science ; 2 - physiology
  • 1 - science ; 2 - meteorology & atmospheric sciences
  • 1 - science ; 2 - environmental sciences
  • 1 - science ; 2 - biophysics
Identifiant ISTEX

International Journal of Biometeorology

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Score qualité du texte
  • Insectes
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