One of the greatest unmet challenges in conservation biology is the genetic management of fragmented populations of threatened animal and plant species. More than a million small, isolated, population fragments of threatened species are likely suffering inbreeding depression and loss of evolutionary potential, resulting in elevated extinction risks. Although these effects can often be reversed by re-establishing gene flow between population fragments, managers very rarely do this. On the contrary, genetic methods are used mainly to document genetic differentiation among populations, with most studies concluding that genetically differentiated populations should be managed separately, thereby isolating them yet further and dooming many to eventual extinction Many small population fragments are going extinct principally for genetic reasons. Although the rapidly advancing field of molecular genetics is continually providing new tools to measure the extent of population fragmentation and its genetic consequences, adequate guidance on how to use these data for effective conservation is still lacking. This accessible, authoritative text is aimed at senior undergraduate and graduate students interested in conservation biology, conservation genetics, and wildlife management. It will also be of particular relevance to conservation practitioners and natural resource managers, as well as a broader academic audience of conservation biologists and evolutionary ecologists.
The habitats of most species have been fragmented by human actions, isolating small populations that consequently develop genetic problems. Millions of small, isolated, fragmented populations are likely suffering from inbreeding depression and loss of genetic diversity, greatly increasing their risk of extinction. Crossing between populations is required to reverse these effects, but managers rarely do so. A key reason for such inaction is that managers are often advised to manage populations in isolation whenever molecular genetic methods indicate genetic differences among them. Following this advice will often doom small populations to extinction when the habitat fragmentation and genetic differences were caused by human activities. A paradigm shift is required whereby evidence of genetic differentiation among populations is a trigger to ask whether any populations are suffering genetic problems, and if so, whether they can be rescued by augmenting gene flow. Consequently, there is now an urgent need for an authoritative practical guide to facilitate this paradigm shift in genetic management of fragmented populations.
Is the history of life a series of accidents or a drama scripted by selfish genes? Is there an "essential" human nature, determined at birth or in a distant evolutionary past? What should we conserve—species, ecosystems, or something else? Informed answers to questions like these, critical to our understanding of ourselves and the world around us, require both a knowledge of biology and a philosophical framework within which to make sense of its findings. In this accessible introduction to philosophy of biology, Kim Sterelny and Paul E. Griffiths present both the science and the philosophical context necessary for a critical understanding of the most exciting debates shaping biology today. The authors, both of whom have published extensively in this field, describe the range of competing views—including their own—on these fascinating topics. With its clear explanations of both biological and philosophical concepts, Sex and Death will appeal not only to undergraduates, but also to the many general readers eager to think critically about the science of life.
What if you could change your whole life for the better--in just a few hours?Paul McKenna, Ph.D., has spent 25 years working with people from all walks of life and helping them to change their lives for the better. He has investigated nearly every method of therapy, coaching, and personal change available--and now he has made a breakthrough: an amazing new system that yields dramatic results with both large groups and one-on-one clients. If you're ready to: *Have infinitely more power over the direction of your life . . . *Uncover the secrets of luck, confidence, and motivation . . . *Feel like you are the master of your own destiny . . . *Become the person you were born to be . . .. . . then let Dr. McKenna help you! He has discovered and crafted a simple set of processes that anyone can be guided through in a matter of hours. In this book, which includes free downloadable audio and video sessions, he shows you how to clear the past of blocks or negative experiences and get in touch with the core of who you truly are so you can live more happily in the present. His powerful, practical techniques help you connect with what you really want and focus your mind and body to fulfill your destiny!
During the Age of Revolution, Paris came alive with wildly popular virtuoso performances. Whether the performers were musicians or chefs, chess players or detectives, these virtuosos transformed their technical skills into dramatic spectacles, presenting the marvelous and the outré for spellbound audiences. Who these characters were, how they attained their fame, and why Paris became the focal point of their activities is the subject of Paul Metzner's absorbing study. Covering the years 1775 to 1850, Metzner describes the careers of a handful of virtuosos: chess masters who played several games at once; a chef who sculpted hundreds of four-foot-tall architectural fantasies in sugar; the first police detective, whose memoirs inspired the invention of the detective story; a violinist who played whole pieces on a single string. He examines these virtuosos as a group in the context of the society that was then the capital of Western civilization. This title is part of UC Press's Voices Revived program, which commemorates University of California Press’s mission to seek out and cultivate the brightest minds and give them voice, reach, and impact. Drawing on a backlist dating to 1893, Voices Revived makes high-quality, peer-reviewed scholarship accessible once again using print-on-demand technology. This title was originally published in 1999.
Traffication develops a bold new idea: that the trillions of miles of driving we do each year are just as destructive to our natural environment as any of the better known threats, such as habitat loss or intensive farming. The problem is not simply one of roadkill; the impacts of roads are far more pervasive, and they impact our wildlife in many subtle and unpredictable ways. Using the latest research, the book reveals how road traffic shatters essential biological processes, affecting how animals communicate, move around, feed, reproduce and die. Most importantly, it shows that the influence of traffic extends well beyond the verge, and that a busy road can strip the wildlife from our countryside for miles around. In the UK, almost nowhere is exempt from this environmental toll. Yet the final message here is one of hope: by identifying the car as a major cause of the catastrophic loss of wildlife, the solutions to our biodiversity crisis suddenly become much clearer. The first step to solving any problem is to recognise that it exists in the first place. But with road traffic, we are not even at that crucial initial stage in our recovery. Quite simply, Traffication does for road traffic what Silent Spring did for agrochemicals: awakening us from our collective road-blindness and opening up a whole new chapter in conservation. This urgent book is an essential contribution to the debate on how we restore the health of our countryside – and of our own minds and bodies.
Reintroduction of Fish and Wildlife Populations provides a practical step-by-step guide to successfully planning, implementing, and evaluating the reestablishment of animal populations in former habitats or their introduction in new environments. In each chapter, experts in reintroduction biology outline a comprehensive synthesis of core concepts, issues, techniques, and perspectives. This manual and reference supports scientists and managers from fisheries and wildlife professions as they plan reintroductions, initiate releases of individuals, and manage restored populations over time. Covering a broad range of taxonomic groups, ecosystems, and global regions, this edited volume is an essential guide for academics, students, and professionals in natural resource management.
The challenges that the world's running water systems now face have never been more numerous or acute; at the same time, these complex habitats remain absolutely crucial to human wellbeing and future survival. If rivers can ever be anything like sustainable, ecology needs to take its place as an equal among the physical sciences such as hydrology and geomorphology. A real understanding of the natural history and ecology of running waters must now be brought even more prominently into river management. The primary purpose of this textbook is to provide the up-to-date overview that students and practitioners will require to achieve this aim. The book's unifying focus is on rivers and streams as ecosystems in which the particular identity of organisms is not the main emphasis but rather the processes in which they are involved - specifically energy flow and the cycling of materials. It builds on the physicochemical foundations of the habitat templet and explores the diversity and adaptations of the biota, progressing from the population and community ecology of organisms and linking them to ecosystem processes and services in the wider biosphere via the complexities of species interactions and food webs. These include water quality and patterns of river discharge, as well as aesthetics, waste disposal, and environmental health. While the book is not primarily focused on application per se, each chapter addresses how humans affect rivers and, in turn, are affected by them. A final, future-oriented chapter identifies key strategic areas and sets a roadmap for integrating knowledge of natural history and ecology into policy and management. The Biology and Ecology of Streams and Rivers is an accessible text suitable for both senior undergraduate and graduate students taking courses in both lotic and general ecology as well as more established researchers, practitioners, managers, and conservationists requiring a concise and contemporary overview of running waters.
The habitats of most species have been fragmented by human actions, isolating small populations that consequently develop genetic problems. Millions of small, isolated, fragmented populations are likely suffering from inbreeding depression and loss of genetic diversity, greatly increasing their risk of extinction. Crossing between populations is required to reverse these effects, but managers rarely do so. A key reason for such inaction is that managers are often advised to manage populations in isolation whenever molecular genetic methods indicate genetic differences among them. Following this advice will often doom small populations to extinction when the habitat fragmentation and genetic differences were caused by human activities. A paradigm shift is required whereby evidence of genetic differentiation among populations is a trigger to ask whether any populations are suffering genetic problems, and if so, whether they can be rescued by augmenting gene flow. Consequently, there is now an urgent need for an authoritative practical guide to facilitate this paradigm shift in genetic management of fragmented populations.
One of the greatest unmet challenges in conservation biology is the genetic management of fragmented populations of threatened animal and plant species. More than a million small, isolated, population fragments of threatened species are likely suffering inbreeding depression and loss of evolutionary potential, resulting in elevated extinction risks. Although these effects can often be reversed by re-establishing gene flow between population fragments, managers very rarely do this. On the contrary, genetic methods are used mainly to document genetic differentiation among populations, with most studies concluding that genetically differentiated populations should be managed separately, thereby isolating them yet further and dooming many to eventual extinction! Many small population fragments are going extinct principally for genetic reasons. Although the rapidly advancing field of molecular genetics is continually providing new tools to measure the extent of population fragmentation and its genetic consequences, adequate guidance on how to use these data for effective conservation is still lacking. This accessible, authoritative text is aimed at senior undergraduate and graduate students interested in conservation biology, conservation genetics, and wildlife management. It will also be of particular relevance to conservation practitioners and natural resource managers, as well as a broader academic audience of conservation biologists and evolutionary ecologists.
Seesengood traces the life and impact of Paul – one of Christianity’s most influential figures – through the major periods Christian history. Exploring the changing interpretations of Paul and his work, the author throws new light on his writings and on religious history. Offers a unique, insightful journey through the many and varied interpretations of Paul’s life and work over 2,000 years – from the Gnostic controversy, to Luther and the Reformation, to contemporary debates over religion and science Explains Paul’s pivotal role within Christian history, and how his missionary journeys, canonized epistles and theological insights were cornerstones of the early Church and central to the formation of Christian doctrine Argues that each new interpretation of Paul is the result of a fresh set of cultural, social and ideological circumstances – and so questions whether it is ever possible to discover the real Paul
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