The material cost and stickiness of capture threads and the evolution of orb-weaving spiders
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چکیده
منابع مشابه
Persistent stickiness of viscous capture threads produced by araneoid orb-weaving spiders.
The most commonly encountered spider orb-webs rely on sticky, viscous capture threads to retain prey. These threads are composed of supporting fibers covered by a complex aqueous solution that forms a series of droplets, each with a glycoprotein granule that confers adhesion. This adhesive system normally functions for less than a day before being replaced. Despite their ephemeral nature, we fo...
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15 صفحه اولThe role of granules within viscous capture threads of orb-weaving spiders.
Sticky viscous prey capture threads form the spiral elements of spider orb-webs and are responsible for retaining insects that strike a web. These threads are formed of regularly spaced aqueous droplets that surround a pair of supporting axial fibers. When a thread is flattened on a microscope slide a small, opaque granule can usually be seen within each droplet. These granules have been though...
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The sticky prey capture threads of orb-webs are critical to web performance. By retaining insects that strike the web, these spirally arrayed threads allow a spider time to locate and subdue prey. The viscous capture threads spun by modern orb-weaving spiders of the Araneoidea clade replaced the dry, fuzzy cribellar capture threads of the Deinopoidea and feature regularly spaced moist, adhesive...
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ژورنال
عنوان ژورنال: Biological Journal of the Linnean Society
سال: 1997
ISSN: 0024-4066
DOI: 10.1006/bijl.1997.0160