• Influence of spatial heterogeneity and prey density on predatory behaviour of the tropical spidersCyrtophora cicatrosa (Stoliczka) andMarpissa calcutaensis (Tikader) (Araneae, Araneidae)

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/anml/092/06/0429-0435

    • Keywords

       

      Predatory behaviour; prey density; Cyrtophora cicatrosa ; Marpissa calcutaensis

    • Abstract

       

      Tropical spidersC. cicatrosa andM. calcutaensis were allowed to predate individually in different terraria at different prey densities. Both the species were satiated within 5 hr of predation in all the volumes. Prey density exerted significant influence on the predatory behaviour of both the species. The predation increased with increasing prey density, but the volume of terraria exerted only marginal influence. The functional response curve ofC. cicatrosa andM. calcutaensis was neither linear nor sigmoid, but was curvilinear representing type II response of Holling’s model.

    • Author Affiliations

       

      S Palanichamy1

      1. P G and Research Department of Zoology, Arulmigu Palaniandavar College of Arts and Culture, Palni - 624 602, India
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