Download or read book The Choanoflagellates written by Barry S. C. Leadbeater and published by Cambridge University Press. This book was released on 2015-01-08 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unique account of the biology, ecology and evolution of choanoflagellates - the closest, known, living, unicellular relatives of animals.
Download or read book The Choanoflagellates written by Barry S. C. Leadbeater and published by Cambridge University Press. This book was released on 2015-01-08 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: Choanoflagellates have three distinctive claims to fame: they are the closest, living, unicellular relatives of animals; they are a major component of aquatic microbial foodwebs; and one group is remarkable for its siliceous basket-like coverings. This landmark book offers a unique synthesis of over forty years of choanoflagellates research. Key areas are covered, from the phylogenetic evidence supporting the sister-group relationship between choanoflagellates and Metazoa, to choanoflagellate distribution and diversity in marine and freshwater environments. The structure and assembly of choanoflagellate loricae is also presented together with a full discussion of a novel example of 'regulatory evolution', suggesting that the switch from nudiform to tectiform cell division and lorica production was achieved by a sudden reorganisation of existing structures and mechanisms. Providing an authoritative summary of what is currently known about choanoflagellates, this title will serve as a foundation upon which future research and discussion can take place.
Download or read book Planktonic Choanoflagellates from Disko Bugt West Greenland with a Survey of the Marine Nanoplankton of the Area written by Helge Abildhauge Thomsen and published by Museum Tusculanum Press. This book was released on 1982 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Animal Evolution Interrelationships of the Living Phyla written by Claus Nielsen and published by OUP Oxford. This book was released on 2001-03-08 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: Animal Evolution is a complete analysis of the evolutionary interrelationships and myriad diversity of the animal kingdom. Using modern phylogenetic reasoning based on characters from an extensive review of morphology, including ultrastructure, and embryology, each phylum is analysed to ascertain its monophyly and hence its ancestral characters. These ancestral characters are then used to construct a complete phylogenetic tree of the extant animal phyla. This new edition of Animal Evolution brings the subject fully up to date including some new ideas and emphases, as well as new bibliographic data. It also includes new chapters on the use of computer programmes and on the use of the new molecular techniques to create phylogenies, both techniques that have grown in prevalence in the field since the first edition was published. Illustrated throughout with finely detailed line drawings and clear diagrams. From reviews of the first edition of Animal Evolution: 'A clear and engaging style exemplified by a series of superbly concise descriptions of the phyla.... These are complemented by excellent illustrations.... The volume belongs on every biologist's bookshelf.' Simon Conway- Morris, Nature 'Texts like these constitute the very cream of taxonomic literature.... It really is a joy to read... and in my opinion it constitutes a highly recommended book for all zoologists. I think it is also particularly suited for seminars on animal classification for both undergraduate and graduate students.' JC von Vaupel Klein, Crustaceana 'I highly recommend this book as a fascinating theory of animal relationships, and an excellent summary of the phylogenetically informative aspects of the biology of the whole animal kingdom.' Maximilian J Telford, Systematic Entomology
Download or read book Comprehensive Natural Products III written by and published by Elsevier. This book was released on 2020-07-22 with total page 4266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive Natural Products III, Third Edition, Seven Volume Set updates and complements the previous two editions, including recent advances in cofactor chemistry, structural diversity of natural products and secondary metabolites, enzymes and enzyme mechanisms and new bioinformatics tools. Natural products research is a dynamic discipline at the intersection of chemistry and biology concerned with isolation, identification, structure elucidation, and chemical characteristics of naturally occurring compounds such as pheromones, carbohydrates, nucleic acids and enzymes. This book reviews the accumulated efforts of chemical and biological research to understand living organisms and their distinctive effects on health and medicine and to stimulate new ideas among the established natural products community. Provides readers with an in-depth review of current natural products research and a critical insight into the future direction of the field Bridges the gap in knowledge by covering developments in the field since the second edition published in 2010 Split into 7 sections on key topics to allow students, researchers and professionals to find relevant information quickly and easily Ensures that the knowledge within is easily understood by and applicable to a large audience
Download or read book Protozoans Algae Other Protists written by Steve Parker and published by Capstone. This book was released on 2009 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces you to creatures from the protist kingdom, from microscopic protozoans to seaweedlike algae. It examines the parts, life cycle, and reproduction of various types of protists. It also looks at the harmful effects some protists have on humans. Did You Know? The deadly disease malaria is caused in part by the protist Plasmodium. The fossils of one type of protist, the red algae, date back more than 500 million years. Paramecium, a well known protist, uses hairlike cilia to sweep food into its mouth.
Download or read book On the Origin of Phyla written by James W. Valentine and published by University of Chicago Press. This book was released on 2004-06-18 with total page 639 pages. Available in PDF, EPUB and Kindle. Book excerpt: Owing its inspiration and title to On the Origin of Species, James W. Valentine's ambitious book synthesizes and applies the vast treasury of theory and research collected in the century and a half since Darwin's time. By investigating the origins of life's diversity, Valentine unlocks the mystery of the origin of phyla. One of the twentieth century's most distinguished paleobiologists, Valentine here integrates data from molecular genetics, evolutionary developmental biology, embryology, comparative morphology, and paleontology into an analysis of interest to scholars from any of these fields. He begins by examining the sorts of evidence that can be gleaned from fossils, molecules, and morphology, then reviews and compares the basic morphology and development of animal phyla, emphasizing the important design elements found in the bodyplans of both living and extinct phyla. Finally, Valentine undertakes the monumental task of developing models to explain the origin and early diversification of animal phyla, as well as their later evolutionary patterns. Truly a magnum opus, On the Origin of Phyla will take its place as one of the classic scientific texts of the twentieth century, affecting the work of paleontologists, morphologists, and developmental, molecular, and evolutionary biologists for decades to come. "A magisterial compendium . . . . Valentine offers a judicious evaluation of an astonishing array of evidence."—Richard Fortey, New Scientist "Truly a magnum opus, On the Origin of Phyla has already taken its place as one of the classic scientific texts of the twentieth century, affecting the work of paleontologists, morphologists, and developmental, molecular, and evolutionary biologists for decades to come."—Ethology, Ecology & Evolution "Valentine is one of the Renaissance minds of our time. . . . Darwin wisely called his best-known work On the Origin of the Species; the origin of the phyla is an even stickier problem, and Valentine deserves credit for tackling it at such breadth . . . . A magnificient book."—Stefan Bengtson, Nature
Download or read book Remarkable Creatures written by Sean B. Carroll and published by HMH. This book was released on 2014-10-16 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: National Book Award Finalist: A biologist’s “thoroughly enjoyable” account of the expeditions that unearthed the history of life on our planet (Publishers Weekly). Not so long ago, most of our world was an unexplored wilderness. Our sense of its age was vague and vastly off the mark, and much of the knowledge of our own species’ history was a set of fantastic myths and fairy tales. But scientists were about to embark on an amazing new era of understanding. From the New York Times–bestselling author of The Big Picture, this book leads us on a rousing voyage that recounts the most important discoveries in two centuries of natural history: from Darwin’s trip around the world to Charles Walcott’s discovery of pre-Cambrian life in the Grand Canyon; from Louis and Mary Leakey’s investigation of our deepest past in East Africa to the trailblazers in modern laboratories who have located a time clock in our DNA. Filled with the same sense of adventure that spurred on these extraordinary men and women, Remarkable Creatures is a “stirring introduction to the wonder of evolutionary biology” (Kirkus Reviews). “Charming and enlightening.” —San Francisco Chronicle “As fast-paced as a detective story.” —Nature
Download or read book Systematics and Evolution written by David McLaughlin and published by Springer Science & Business Media. This book was released on 2000-09-22 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book I Contain Multitudes written by Ed Yong and published by HarperCollins. This book was released on 2016-08-09 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: New York Times Bestseller New York Times Notable Book of 2016 • NPR Great Read of 2016 • Named a Best Book of 2016 by The Economist, Smithsonian, NPR's Science Friday, MPR, Minnesota Star Tribune, Kirkus Reviews, Publishers Weekly, The Guardian, Times (London) From Pulitzer Prize winner Ed Yong, a groundbreaking, wondrously informative, and vastly entertaining examination of the most significant revolution in biology since Darwin—a “microbe’s-eye view” of the world that reveals a marvelous, radically reconceived picture of life on earth. Every animal, whether human, squid, or wasp, is home to millions of bacteria and other microbes. Pulitzer Prize-winning author Ed Yong, whose humor is as evident as his erudition, prompts us to look at ourselves and our animal companions in a new light—less as individuals and more as the interconnected, interdependent multitudes we assuredly are. The microbes in our bodies are part of our immune systems and protect us from disease. In the deep oceans, mysterious creatures without mouths or guts depend on microbes for all their energy. Bacteria provide squid with invisibility cloaks, help beetles to bring down forests, and allow worms to cause diseases that afflict millions of people. Many people think of microbes as germs to be eradicated, but those that live with us—the microbiome—build our bodies, protect our health, shape our identities, and grant us incredible abilities. In this astonishing book, Ed Yong takes us on a grand tour through our microbial partners, and introduces us to the scientists on the front lines of discovery. It will change both our view of nature and our sense of where we belong in it.
Download or read book Key Transitions in Animal Evolution written by Rob Desalle and published by CRC Press. This book was released on 2010-12-07 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tackling one of the most difficult and delicate of the evolutionary questions, this challenging book summarizes the more recent results in phylogenetics and developmental biology that address the evolution of key innovations in metazoans. Divided into three sections, the first considers the phylogenetic issues involving this area of the tree of lif
Download or read book Five Kingdoms written by Lynn Margulis and published by Henry Holt. This book was released on 1998 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: An all-inclusive catalogue of the world's living diversity, Five Kingdoms defines and describes the major divisions, or phyla, of nature's five great kingdoms - bacteria, protoctists, animals, fungi, and plants - using a modern classification scheme that is consistent with both the fossil record and molecular data. Generously illustrated and remarkably easy to follow, it not only allows readers to sample the full range of life forms inhabiting our planet but to familiarize themselves with the taxonomic theories by which all organisms' origins and distinctive characteristics are traced and classified.
Download or read book Silicon and Siliceous Structures in Biological Systems written by T.L. Simpson and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: The publication of this book was undertaken with two purposes in view: to bring together informatian on the deposition by living organ isms of unique skeletal structures composed of amorphous silica, and to review recent data on the involvement of silicon in physiological and biochemical processes. Although widely varying viewpoints are represented, all the contributors are very interested in the events in volved in the formatian of siliceaus structures and their function. Data presented deal with these questions in a variety of plant and animal systems, and at levels ranging from the evolutionary to the biochemical and ultrastructural. Innovations in electron microscopy and, indeed, the advent of electron microscopy itself, have stimulated many ultra structural studies of silica deposition, work which has deepened and widened the interest in those organisms which routinely produce "glassy skeletons. " The question of how silicon participates in biological systems in volves a spectrum of fields that indudes the chemistry of silicon per se, its biogeochemistry, biochemistry, ecology, and so forth. In this book, however, attention is focused up on the biological aspects of silicon and siliceous structures, with emphasis on the evolutian, phylogeny, morphology, and distribution of siliceaus structures, on the cellular as peets of silica deposition, and on the physiological and biochemical roles of silicon. This volume represents the first compilatian of such data. Because such a variety of subjects and fields are covered, the reader will have to glean for himself some of the comparative aspects of the data.
Download or read book The Gene Content of Diverse Choanoflagellates Illuminates Animal Origins written by Daniel Joseph Richter and published by . This book was released on 2013 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fossil data indicate that the seminal events in animal evolution occurred over 600 million years ago, yet the first animals were likely microscopic and soft-bodied, providing little fossil evidence for their biology and morphology. To bridge the gap in our understanding of early animal evolution, we can compare the gene content of animals to that of choanoflagellates, a globally distributed group of microbial eukaryotes that are the closest living relatives of animals. Previously, genome sequencing of two species of choanoflagellates provided a valuable initial reconstruction of early animal biology, but the two sequenced species are relatively closely related, leaving the majority of choanoflagellate diversity unrepresented. We sequenced the transcriptomes of 19 additional choanoflagellate species selected for their phylogenetic diversity, greatly increasing estimates of the gene content of the common ancestor of choanoflagellates and animals. We detect numerous genes in choanoflagellates that were previously found only in animals, including homologs of Toll-like receptors and the NF-[kappa]B family of transcription factors, which are key components of animal innate immunity. In addition, we find genes encoding a hyaluronidase enzyme that is responsible for extracellular matrix modulation in animals and induces a change in cell number within multicelled colonies of the choanoflagellate Salpingoeca napiformis. We find that genes lost on the lineage leading to animals are significantly enriched for metabolic function. We identify genes shared exclusively among choanoflagellates and sponges that may underlie the biology of choanocytes, likely the earliest animal cell type. Finally, we demonstrate that Argonaute and Dicer, critical components of the RNAi gene silencing pathway in eukaryotes that were not detected in the first two choanoflagellate species to be sequenced, are both present in choanoflagellates.
Download or read book Evolutionary Transitions to Multicellular Life written by Iñaki Ruiz-Trillo and published by Springer. This book was released on 2015-03-27 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book integrates our understanding of the factors and processes underlying the evolution of multicellularity by providing several complementary perspectives (both theoretical and experimental) and using examples from various lineages in which multicellularity evolved. Recent years marked an increased interest in understanding how and why these transitions occurred, and data from various fields are providing new insights into the forces driving the several independent transitions to multicellular life as well as into the genetic and molecular basis for the evolution of this phenotype. The ultimate goal of this book is to facilitate the identification of general and unifying principles and mechanisms.
Download or read book The Evolutionary Biology of Extinct and Extant Organisms written by Subir Ranjan Kundu and published by Academic Press. This book was released on 2021-03-23 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Evolutionary Biology of Extinct and Extant Organisms offers a thorough and detailed narration of the journey of biological evolution and its major transitional links to the biological world, which began with paleontological exploration of extinct organisms and now carries on with reviews of phylogenomic footprint reviews of extant, living fossils. This book moves through the defining evolutionary stepping stones starting with the evolutionary changes in prokaryotic, aquatic organisms over 4 billion years ago to the emergence of the modern human species in Earth's Anthropocene. The book begins with an overview of the processes of evolutionary fitness, the epicenter of the principles of evolutionary biology. Whether through natural or experimental occurrence, evolutionary fitness has been found to be the cardinal instance of evolutionary links in an organism between its ancestral and contemporary states. The book then goes on to detail evolutionary trails and lineages of groups of organisms including mammalians, reptilians, and various fish. The final section of the book provides a look back at the evolutionary journey of "nonliving" or extinct organisms, versus the modern-day transition to "living" or extant organisms. The Evolutionary Biology of Extinct and Extant Organisms is the ideal resource for any researcher or advanced student in evolutionary studies, ranging from evolutionary biology to general life sciences. - Provides an updated compendium of evolution research history - Details the evolution trails of organisms, including mammals, reptiles, arthropods, annelids, mollusks, protozoa, and more - Offers an accessible and easy-to-read presentation of complex, in-depth evolutionary biology facts and theories
Download or read book Biodiversity and Earth History written by Jens Boenigk and published by Springer. This book was released on 2015-03-31 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: This uniquely interdisciplinary textbook explores the exciting and complex relationship between Earth’s geological history and the biodiversity of life. Its innovative design provides a seamless learning experience, clarifying major concepts step by step with detailed textual explanations complemented by detailed figures, diagrams and vibrant pictures. Thanks to its layout, the respective concepts can be studied individually, as part of the broader framework of each chapter, or as they relate to the book as a whole. It provides in-depth coverage of: - Earth’s formation and subsequent geological history, including patterns of climate change and atmospheric evolution; - The early stages of life, from microbial ‘primordial soup’ theories to the fossil record’s most valuable contributions; - Mechanisms of mutual influence between living organisms and the environment: how life changed Earth’s history whilst, at the same time, environmental pressures continue to shape the evolution of species; - Basic ideas in biodiversity studies: species concepts, measurement techniques, and global distribution patterns; - Biological systematics, from their historical origins in Greek philosophy and Biblical stories to Darwinian evolution by natural selection, and to phylogenetics based on cutting-edge molecular techniques. This book’s four major sections offer a fresh cross-disciplinary overview of biodiversity and the Earth’s history. Among many other concepts, they reveal the massive diversity of eukaryotes, explain the geological processes behind fossilisation, and provide an eye-opening account of the relatively short period of human evolution in the context of Earth’s 4.6 billion-year history. Employing a combination of proven didactic tools, the book is simultaneously a reading reference, illustrated guide, and encyclopaedia of organismal biology and geology. It is aimed at school- and university-level students, as well as members of the public fascinated by the intricate interrelationship of living organisms and their environment.
