Many laboratory experiments demonstrate how orb-web spiders change the architecture of their webs in response to prey, surroundings and wind loading. The overall shape of the web and a range of other web parameters are determined by frame and anchor threads. In the wild, unlike the lab, the anchor threads are attached to branches and leaves that are not stationary but move, which affects the thread tension field. Here we experimentally test the effect of a moving support structure on the construction behaviour and web-parameters of the garden cross spider Araneus diadematus. We found no significant differences in building behaviour between rigid and moving anchors in total time spent and total distance covered nor in the percentage of the total time spent and distance covered to build the three major web components: radials, auxiliary and capture spirals. Moreover, measured key parameters of web-geometry were equally unaffected. These results call for re-evaluation of common understanding of spider webs as thread tensions are often considered to be a major factor guiding the spider during construction and web-operation.

许多实验室实验表明，球形网蜘蛛如何响应猎物，周围环境和风荷载来改变其网状结构。腹板的整体形状和其他腹板参数范围由框架和锚固线确定​​。在野外，与实验室不同，锚固线附着在树枝和树叶上，这些树枝和树叶不是固定的而是运动的，这会影响纱线的张力场。在这里，我们通过实验测试了移动支撑结构对花园十字蜘蛛Araneus diadematus的构造行为和腹板参数的影响。我们发现，刚性锚固锚和移动锚固锚之间的建筑行为在总花费时间和所覆盖的总距离以及建造三个主要腹板部件（径向，辅助和捕获螺旋）所花费的总时间和所覆盖的距离的百分比上均没有显着差异。而且，测量的几何形状关键参数同样不受影响。这些结果要求重新评估对蜘蛛网的普遍理解，因为通常认为线张力是在构造和幅材操作期间引导蜘蛛的主要因素。