Spider Evolution

Download or read book Spider Evolution written by Subir Ranjan Kundu and published by Elsevier. This book was released on 2021-10-19 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spider Evolution: Genetics, Behavior, and Ecological Influences is a thorough exploration of the evolutionary trail of arachnids, particularly spider species, through prehistoric origins to current sustainability issues. This book analyzes extinct organisms in the Arachnida class, specifically looking at their phylogenomics and molecular footprints, to understand the evolutionary changes in the diversification in today's spider species. Beginning with an overview of spider species and their cultural significance, this book offers a detailed review of spider origins and their influences on behavioral traits, physiology of sensory organs, and biomechanics. It also touches upon spiders as prey as well as predators, and how these roles have changed in the 400 million years of Arachnida existence. The book then focuses upon current environmental issues facing spider species and how these have, and can, affect the evolution of these organisms; biodiversity minimization, climate change, and natural disasters are covered with consideration to a spider's changing physiology, habitat, and even aggressive behavior. Spider Evolution: Genetics, Behavior, and Ecological Influences is a much-needed resource for entomologists and arachnid- or arthropod-driven researchers. Advanced undergraduate and graduate students will also benefit from the historic review, current assessment, and future predictions of spider evolution provided in this book.

Download or read book Spider Webs written by William Eberhard and published by University of Chicago Press. This book was released on 2020-12-22 with total page 679 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Fossil Spiders written by David Penney and published by Siri Scientific Press. This book was released on 2011 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compared to insects, fossil spiders have received only scant attention in the literature. Previously, the only works available were numerous scientific papers, many published in foreign languages. Most of these are basic descriptive taxonomic works, with very few considering broader biological concepts. Despite a significant increase in the discovery and description of fossil spiders within the last quarter Century this void remained unfilled. Thus, this short monograph aims to achieve several objectives. Firstly, to provide general and up to date background information on the overall importance and diversity of fossils spiders, including an indication of those groups for which the taxonomy is spurious and in need of reassessment. Secondly, to discuss the techniques available for working with fossil spiders and some of the problems encountered by palaeoarachnologists, including bias and limitations of the spider fossil record. Thirdly, the overall evolutionary history of spiders is summarized in the form of an evolutionary tree, which is subsequently used to address key issues of broad interest, such as origins, diversifications and extinctions, including the effects of mass extinctions and predator-prey co-radiations. Finally, the contribution that fossil data can make to understanding the past and present biogeography of the order is considered. This book should be of interest to both amateur and professional arachnologists and palaeontologists and will also serve as a general palaeontological reference work for neonologists studying extant spiders.

Download or read book Spider Silk written by Leslie Brunetta and published by Yale University Press. This book was released on 2010-06-08 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spiders, objects of eternal human fascination, are found in many places: on the ground, in the air, and even under water. Leslie Brunetta and Catherine Craig have teamed up to produce a substantive yet entertaining book for anyone who has ever wondered, as a spider rappelled out of reach on a line of silk, “How do they do that?” The orb web, that iconic wheel-shaped web most of us associate with spiders, contains at least four different silk proteins, each performing a different function and all meshing together to create a fly-catching machine that has amazed and inspired humans through the ages. Brunetta and Craig tell the intriguing story of how spiders evolved over 400 million years to add new silks and new uses for silk to their survival “toolkit” and, in the telling, take readers far beyond the orb. The authors describe the trials and triumphs of spiders as they use silk to negotiate an ever-changing environment, and they show how natural selection acts at the genetic level and as individuals struggle for survival.

Download or read book Spider Evolution written by Subir Ranjan Kundu and published by Academic Press. This book was released on 2021-10-14 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spider Evolution: Genetics, Behavior, and Ecological Influences provides a thorough exploration of the evolutionary trail of arachnids, particularly spider species, from prehistoric origins to current sustainability issues. This book analyzes extinct organisms in the Arachnida class, specifically looking at their phylogenomics and molecular footprints to understand evolutionary changes in diversification in today's species. Sections cover spider origins and their influences on behavioral traits, physiology of sensory organs, and biomechanics, also touching on spiders as prey and predators and how their roles have changed in the 400 million years of Arachnida existence. The book then focuses upon current environmental issues facing spider species and how these have, and can, affect the evolution of these organisms. Topics include biodiversity minimization, climate change and natural disasters. This book is a much-needed resource for entomologists and arachnid- or arthropod-driven researchers. Advanced undergraduate and graduate students will also benefit from the historic review, current assessment and future predictions of spider evolution provided in this book. - Provides a complete view of spider species from their first fossil evidence nearly 400 million years ago - Focuses on climate change and biodiversity threats as environmental factors currently affecting these organisms - Contains the most up-to-date knowledge on evolutionary genetics, physiology changes and behavioral outcomes

Download or read book Children of Time written by Adrian Tchaikovsky and published by Orbit. This book was released on 2018-09-18 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: Winner of the 2023 Hugo Award for Best Series! Adrian Tchaikovsky's award-winning novel Children of Time, is the epic story of humanity's battle for survival on a terraformed planet. Who will inherit this new Earth? The last remnants of the human race left a dying Earth, desperate to find a new home among the stars. Following in the footsteps of their ancestors, they discover the greatest treasure of the past age—a world terraformed and prepared for human life. But all is not right in this new Eden. In the long years since the planet was abandoned, the work of its architects has borne disastrous fruit. The planet is not waiting for them, pristine and unoccupied. New masters have turned it from a refuge into mankind's worst nightmare. Now two civilizations are on a collision course, both testing the boundaries of what they will do to survive. As the fate of humanity hangs in the balance, who are the true heirs of this new Earth?

Download or read book Spider Behaviour written by Marie Elisabeth Herberstein and published by Cambridge University Press. This book was released on 2011-01-27 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spiders are often underestimated as suitable behavioural models because of the general belief that due to their small brains their behaviour is innate and mostly invariable. Challenging this assumption, this fascinating book shows that rather than having a limited behavioural repertoire, spiders show surprising cognitive abilities, changing their behaviour to suit their situational needs. The team of authors unravels the considerable intra-specific as well as intra-individual variability and plasticity in different behaviours ranging from foraging and web building to communication and courtship. An introductory chapter on spider biology, systematics and evolution provides the reader with the necessary background information to understand the discussed behaviours and helps to place them into an evolutionary context. Highlighting an under-explored area of behaviour, this book will provide new ideas for behavioural researchers and students unfamiliar with spiders as well as a valuable resource for those already working in this intriguing field.