About: Do egg parasitoids increase the tendency of Lestes sponsa (Odonata: Lestidae) to oviposit underwater?     Goto   Sponge   NotDistinct   Permalink

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  • Factors affecting the choice of oviposition site and decision to lay underwater are still poorly understood. We examined whether localities with different risk of egg parasitism, different oviposition strategies (above or below the water surface) and the depth at which the eggs were laid, affected the total number of eggs laid, the proportion parasitized and egg mortality. In general, a significantly higher proportion of the eggs laid above the surface of water were parasitized but spreadwing damselflies showed significant preference for laying eggs underwater at both of the sites studied. This preference, however, had a different effect on the overall mortality of eggs at the two sites studied. Hence underwater oviposition by damselflies may be seen as a conditional anti-predator strategy, occurring only if the benefits exceed potential risks. Underwater oviposition may provide additional benefits other than protection against egg parasitism.
  • Factors affecting the choice of oviposition site and decision to lay underwater are still poorly understood. We examined whether localities with different risk of egg parasitism, different oviposition strategies (above or below the water surface) and the depth at which the eggs were laid, affected the total number of eggs laid, the proportion parasitized and egg mortality. In general, a significantly higher proportion of the eggs laid above the surface of water were parasitized but spreadwing damselflies showed significant preference for laying eggs underwater at both of the sites studied. This preference, however, had a different effect on the overall mortality of eggs at the two sites studied. Hence underwater oviposition by damselflies may be seen as a conditional anti-predator strategy, occurring only if the benefits exceed potential risks. Underwater oviposition may provide additional benefits other than protection against egg parasitism. (en)
Title
  • Do egg parasitoids increase the tendency of Lestes sponsa (Odonata: Lestidae) to oviposit underwater?
  • Do egg parasitoids increase the tendency of Lestes sponsa (Odonata: Lestidae) to oviposit underwater? (en)
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  • Do egg parasitoids increase the tendency of Lestes sponsa (Odonata: Lestidae) to oviposit underwater?
  • Do egg parasitoids increase the tendency of Lestes sponsa (Odonata: Lestidae) to oviposit underwater? (en)
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  • RIV/61988987:17310/15:A1501CI0!RIV15-MSM-17310___
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  • 108
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  • RIV/61988987:17310/15:A1501CI0
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  • Odonata; Lestidae; Lestes sponsa; submerged oviposition; egg parasitism; parasitoids; selection of oviposition site; dragonflies (en)
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  • CZ - Česká republika
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  • [32DAFAE3B147]
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  • EUR J ENTOMOL
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  • 112
http://linked.open...iv/tvurceVysledku
  • Dolný, Aleš
  • Harabiš, Filip
  • Helebrandová, Jana
  • Rusková, Tereza
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  • 1210-5759
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  • 17310
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