Unpicking the signal thread of the sector web spider Zygiella x-notata
Identifieur interne : 000427 ( Main/Exploration ); précédent : 000426; suivant : 000428Unpicking the signal thread of the sector web spider Zygiella x-notata
Auteurs : Beth Mortimer [Royaume-Uni] ; Chris Holland [Royaume-Uni] ; James F. C. Windmill [Royaume-Uni] ; Fritz Vollrath [Royaume-Uni]Source :
- Journal of the Royal Society Interface [ 1742-5689 ] ; 2015.
Abstract
Remote sensing allows an animal to extend its morphology with appropriate conductive materials and sensors providing environmental feedback from spatially removed locations. For example, the sector web spider
Url:
DOI: 10.1098/rsif.2015.0633
PubMed: 26674191
PubMed Central: 4707845
Affiliations:
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Le document en format XML
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<front><div type="abstract" xml:lang="en"><p>Remote sensing allows an animal to extend its morphology with appropriate conductive materials and sensors providing environmental feedback from spatially removed locations. For example, the sector web spider <italic>Zygiella x-notata</italic>
uses a specialized thread as both a structural bridge and signal transmitter to monitor web vibrations from its retreat at the web perimeter. To unravel this model multifunctional system, we investigated <italic>Zygiella</italic>
's signal thread structure with a range of techniques, including tensile testing, laser vibrometry, electron microscopy and behavioural analysis. We found that signal threads varied significantly in the number of filaments; a result of the spider adding a lifeline each time it runs along the bridge. Our mechanical property analysis suggests that while the structure varies, its normalized load does not. We propose that the signal thread represents a complex and fully integrated multifunctional structure where filaments can be added, thus increasing absolute load-bearing capacity while maintaining signal fidelity. We conclude that such structures may serve as inspiration for remote sensing design strategies.</p>
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