Be alert for a fancy spider web stretched across a path—it's the trap of a hungry orb weaver! In this book, you will learn how orb weavers are similar to and different from other arachnids. Close-up photographs and diagrams reveal extraordinary details about the spider's body both inside and out. And a hands-on activity will give you an idea of how the orb weaver can detect prey caught in its web. Learn more about this fascinating member of nature's Arachnid World.
Orb-weaving spiders spin the wheel-shaped webs often seen on dewy mornings in meadows and hedges, or on the walls and the eaves of buildings. This manual provides descriptions, illustrations, and taxonomic keys for the identification of the 94 species of these spiders represented in Canada and neighbouring regions.
Discover the spiky, hairy, and big-eyed members of the orb-weaver family. Shudder at the mortifying size of their webs. Accessible text and photographs of diverse species will help a student cultivate a student’s natural interest in the animal kingdom.
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.
Australians have a love–hate relationship with spiders. Some spiders, such as the Redback and the Sydney Funnelweb, inspire fear. Yet Peacock Spiders, with their colourful fan-spreading courtship dances, have won rapturous appreciation worldwide. A Field Guide to Spiders of Australia uses photographs of living animals to help people identify many of the spiders they encounter. Featuring over 1300 colour photographs, it is the most comprehensive account of Australian spiders ever published. With more than two-thirds of Australian spiders yet to be scientifically described, this book sets the scene for future explorations of our extraordinary Australian fauna. This field guide will be enjoyed by naturalists and anyone with an interest in learning more about Australia's incredible arachnids.
Imagine beetles ejecting defensive sprays as hot as boiling water; female moths holding their mates for ransom; caterpillars disguising themselves as flowers by fastening petals to their bodies; termites emitting a viscous glue to rally fellow soldiers--and you will have entered an insect world once beyond imagining, a world observed and described down to its tiniest astonishing detail by Thomas Eisner. The story of a lifetime of such minute explorations, For Love of Insects celebrates the small creatures that have emerged triumphant on the planet, the beneficiaries of extraordinary evolutionary inventiveness and unparalleled reproductive capacity. To understand the success of insects is to appreciate our own shortcomings, Eisner tells us, but never has a reckoning been such a pleasure. Recounting exploits and discoveries in his lab at Cornell and in the field in Uruguay, Australia, Panama, Europe, and North America, Eisner time and again demonstrates how inquiry into the survival strategies of an insect leads to clarifications beyond the expected; insects are revealed as masters of achievement, forms of life worthy of study and respect from even the most recalcitrant entomophobe. Filled with descriptions of his ingenious experiments and illustrated with photographs unmatched for their combination of scientific content and delicate beauty, Eisner's book makes readers participants in the grand adventure of discovery on a scale infinitesimally small, and infinitely surprising.
This eBook is best viewed on a color device. Enjoy and Learn! Expert Knowledge! Easy-to-Read! This introduction to the diverse yet little known world of spiders is packed with concise, accurate information. With full-color pictures and readable text, this guide identifies representative species and describes: Their characteristics and habits Growth, courtship and enemies Where they are found Includes information on poisonous species and how to collect, preserve, and raise spiders.
