Unpicking the signal thread of the sector web spider Zygiella x-notata.
Unpicking the signal thread of the sector web spider Zygiella x-notata.
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DOI：
10.1098/rsif.2015.0633
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发表时间：
2015-12-06
期刊：
影响因子：
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通讯作者：
Vollrath F
中科院分区：
文献类型：
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作者：
Mortimer B;Holland C;Windmill JF;Vollrath F
遥感技术允许动物通过适当的导电材料和传感器来扩展其形态，从而从空间上移开的位置提供环境反馈。例如，扇形网络蜘蛛zygiella x-notata使用一种特殊的线作为结构桥梁和信号传送器，以监测从其在网络周边撤退时的网络振动。为了解开这一模型多功能系统，我们用一系列技术研究了Zygiella的信号线结构，包括拉伸测试、激光振动测量、电子显微镜和行为分析。我们发现，信号线的数量变化很大；这是蜘蛛每次沿着桥跑时都增加了一条生命线的结果。我们的力学性能分析表明，当结构变化时，其归一化载荷不变。我们认为信号线代表了一种复杂的、完全集成的多功能结构，其中可以添加细丝，从而在保持信号保真度的同时增加绝对承载能力。我们的结论是，这种结构可能会对遥感设计策略起到启发作用。
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 Zygiella x-notata 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 Zygiella'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.