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Books > Science & Mathematics > Biology, life sciences > Life sciences: general issues > Evolution
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Spider Webs - Behavior, Function, and Evolution (Hardcover)
Loot Price: R1,667
Discovery Miles 16 670
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Spider Webs - Behavior, Function, and Evolution (Hardcover)
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In this lavishly illustrated, first-ever book on how spider webs
are built, function, and evolved, William Eberhard provides a
comprehensive overview of spider functional morphology and behavior
related to web building, and of the surprising physical agility and
mental abilities of orb weavers. For instance, one spider spins
more than three precisely spaced, morphologically complex spiral
attachments per second for up to fifteen minutes at a time. Spiders
even adjust the mechanical properties of their famously strong
silken lines to different parts of their webs and different
environments, and make dramatic modifications in orb designs to
adapt to available spaces. This extensive adaptive flexibility,
involving decisions influenced by up to sixteen different cues, is
unexpected in such small, supposedly simple animals. As Eberhard
reveals, the extraordinary diversity of webs includes ingenious
solutions to gain access to prey in esoteric habitats, from blazing
hot and shifting sand dunes (to capture ants) to the surfaces of
tropical lakes (to capture water striders). Some webs are nets that
are cast onto prey, while others form baskets into which the spider
flicks prey. Some aerial webs are tramways used by spiders
searching for chemical cues from their prey below, while others
feature landing sites for flying insects and spiders where the
spider then stalks its prey. In some webs, long trip lines are
delicately sustained just above the ground by tiny rigid silk
poles. Stemming from the author's more than five decades observing
spider webs, this book will be the definitive reference for years
to come.
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