From the data we got, we looked at how vibrations transmitted through the body and wanted to understand how much and at which frequencies the different joints were being bent.
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This shift may allow female to ignore low frequency vibrations, typically found in male courtship and in large prey items and to concentrate on smaller prey items. So basically females may be deployin this posture when they're hungry.
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Paying more 'attention' to small prey on the web! Or perhaps when winds blow and the whole web shakes. They may use this posture to prevent their mechanosensory system from being desensitized by overstimulation!
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So essentially we show that female black widow spiders can use posture to change the tuning of their mechanosensory system and can use it to direct attention to different signal components!
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I've been thinking about this all morning! Wouldn't different threads on the web vibrate at various frequencies based on thread length, thickness, and tension? Do the spiders learn to predict prey size by repeatedly listening to particular threads and how they respond to prey?
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Yes, but it's a lot messier with cobwebs where every thread is interconnected. Overall what we see is that the web transmits pretty flatly (without resonances) everything below any 1kHz. All the frequencies that spiders use. More on that eventually tho.
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