The effect of previous foraging success on web-building behaviour in the sheet-web spider, frontinellina cf. frutetorum (Araneae Linyphiidae)

M. Segoli, A. Maklakov, E. Gavish, I. Tsurim, Y. Lubin

    Research output: Contribution to journalArticlepeer-review

    11 Scopus citations

    Abstract

    We examined the influence of previous foraging success on foraging effort in the sheet web spider Frontinellina cf. frutetorum (Linyphiidae). Foraging effort was estimated via the spider's investment in web construction as indicated by web size. We manipulated previous foraging success by providing spiders with supplementary prey items for 2 days and subsequently removed the webs. Fed spiders were in a better condition than control spiders. However, in contrast to previous studies, supplemented spiders did not reduce their foraging effort. On the contrary, control spiders built smaller webs after web removal, while fed spiders did not reduce the size of their webs. Moreover, we found a positive relationship between spider body condition and web size. We suggest that high energetic demands of web construction as well as web longevity in sheet weavers results in a web-management strategy in which further investment in web size is a positive function of foraging success.

    Original languageEnglish
    Pages (from-to)291-298
    Number of pages8
    JournalEthology Ecology and Evolution
    Volume16
    Issue number4
    DOIs
    StatePublished - 1 Jan 2004

    Keywords

    • Body condition
    • Food supplementation
    • Foraging effort
    • Sheet-web
    • State-dependent decisions
    • Web-building spiders

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