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Spider Web Decorations Steer Vibrations, May Aid Prey Detection

Simulations of Argiope bruennichi webs found stabilimenta altered wave paths in angle-dependent ways.

Overview

  • A peer-reviewed study published in PLOS One reports that stabilimenta can modify how vibrations travel across orb webs.
  • Researchers paired field observations of wasp spider stabilimentum shapes with numerical models, testing normal, juvenile, reduced, platform, drafted, and absent designs.
  • For waves traveling in line with the spiral threads, webs with stabilimenta spread vibrations to more potential sensing points across the web.
  • For waves perpendicular to the web plane or to the radial threads, the decorations produced negligible effects on propagation.
  • The authors caution that real-world benefits for prey localization may be limited and other functions remain plausible, while the mechanics could inspire web‑inspired materials with tunable wave behavior.