Density dependent mortality in the springtail species Orchesella cincta due to predaton by the carabid beetle Notiophilus biguttatus

P.C. De Ruiter, N.J. Ouborg, G. Ernsting

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

    Abstract

    Mortality of the collembole species Orchesella cincta (L.), due to predation by the carabid Notiophilus biguttatus F., has been measured in the laboratory at three levels of prey density. Prey densities were chosen such that the predator's consumption at the lowest prey density was a little above the maintenance ration. Between the two lowest prey densities, mortality increased significantly with prey density. We presume that density-dependent search activity by the predator is responsible for the positive density-dependent mortality. A method is proposed to solve the problem of decreasing prey density during the observations.
    Original languageEnglish
    Pages (from-to)25-30
    JournalEntomologia Experimentalis et Applicata
    Volume48
    Issue number1
    DOIs
    Publication statusPublished - 1988

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