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The effect of prey density on food intake by adultCheilomenes sulphurea [Col.: Coccinellidae]

Entomophaga volume 29, pages 179–184 (1984)Cite this article

Abstract

The feeding rate of males of the coccinellidCheilomenes sulphurea (Ol.) was checked in 3 types of exposure arenas of 210, 476 and 2973 cm2, at 3 levels of prey offered daily (40, 80, 120Aphis fabae Scopoli aphids per arena). Prey numbers affected the feeding rate much more than the size of the exposure arena.C. sulphurea males thus showed a rather high searching efficiency. The data are apparently near to the satiation threshold whereHolling's functional response curves of type II and III resemble each other.

Résumé

La consommation de proie par les mâles deCheilomenes sulphurea (Ol.) est étudiée dans 3 types d'enceintes dont l'espace expérimental est de 210, 476 et 2973 cm2, avec 3 densités de proie offerte chaque jour: 40, 80 et 120 individus du puceronAphis fabae, Scopoli.

La quantité de proies a modifié la consommation de manière plus importante que la taille de l'espace expérimental utilisé. Les mâles deC. sulphurea ont démontré ainsi une capacité à trouver la proie très élevée. Les niveaux de densité de proie sont évidemment près du seuil de saturation définis dans les courbes II et III de la réaction fonctionnelle deHolling.

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Authors and Affiliations

  1. Institute of Entomology, Czechoslovak Academy of Sciences, 128 00, Praha, Czechoslovakia

    I. Hodek

  2. Dep. of Zoology, University of Kalyani, 741235, India

    S. Chakrabarti

  3. Centre of Biomathematics, Czechoslovak Academy of Sciences, 37005, Ceské Budejovice, Czechoslovakia

    M. Rejmanek

Authors
  1. I. Hodek
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  2. S. Chakrabarti
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  3. M. Rejmanek
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The experiments were performed when the 2nd author worked as a participant in a UNESCO course at the Czechoslovak Academy of Sciences, Prague.

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Hodek, I., Chakrabarti, S. & Rejmanek, M. The effect of prey density on food intake by adultCheilomenes sulphurea [Col.: Coccinellidae] . Entomophaga 29, 179–184 (1984). https://doi.org/10.1007/BF02372107

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  • DOI: https://doi.org/10.1007/BF02372107

Keywords

  • Food Intake
  • Plant Pathology
  • Arena
  • Response Curve
  • Functional Response