Which alternative theory suggests the stabilimentum primarily functions to protect the web from damage by large flyers?

It acts as a warning sign, particularly for avian predators

One significant scientific theory posits that the conspicuous stabilimentum serves as an effective warning mechanism directed toward larger animals, most notably birds. Because the dense silk structure is highly visible, birds flying at considerable speeds might perceive the structure before impact. By seeing the stabilimentum, these avian predators can potentially alter their trajectory, thus avoiding a collision that would severely damage or destroy the web. Since the spider expends significant energy in building and maintaining its snare, preventing such damage by providing an upfront visual cue is a crucial energy-saving mechanism.