For over 350 million years, thousands of species of amphibians have lived on earth, but since the 1990s they have been disappearing at an alarming rate, in many cases quite suddenly and mysteriously. What is causing these extinctions? What role do human actions play in them? What do they tell us about the overall state of biodiversity on the planet? In Extinction in Our Times, James Collins and Martha Crump explore these pressing questions and many others as they document the first modern extinction event across an entire vertebrate class, using global examples that range from the Sierra Nevada of California to the rainforests of Costa Rica and the Mediterranean coast of North Africa. Joining scientific rigor and vivid storytelling, this book is the first to use amphibian decline as a lens through which to see more clearly the larger story of climate change, conservation of biodiversity, and a host of profoundly important ecological, evolutionary, ethical, philosophical, and sociological issues.

Drawing on diverse theoretical perspectives, this book examines questions of youth citizenship and participation by exploring their meanings in policy, practice and youth experience. It examines young people's participation in non-government and youth-led organisations, and asks what can be done to bridge the democratic disconnect.

The sustainability of both natural and managed ecosystems is strongly influenced by soil biological processes. A major question in soil biology and ecosystem ecology is the extent to which these processes are affected by the function and structure of the soil's biotic community. The Significance and Regulation of Soil Biodiversity presents the discussions of a group of soil biologists and ecosystem ecologists in which they synthesize available information, present innovative methodologies, and develop cross-taxa and cross-habitat collaborations to advance our understanding of soil biodiversity. The volume addresses the extent and regulation of soil biodiversity and describes initial approaches to the linking of soil biodiversity and ecosystem function. Audience: Researchers and students in a wide range of environmental scientific disciplines.

Daily rhythms are a ubiquitous feature of living systems. Generally, these rhythms are not just passive consequences of cyclic fluctuations in the environment, but instead originate within the organism. In mammals, including humans, the master pacemaker controlling 24-hour rhythms is localized in the suprachiasmatic nuclei of the hypothalamus (SCN). This circadian clock is responsible for the temporal organization of a wide variety of functions, ranging from sleep and food intake, to physiological measures such as body temperature, heart rate and hormone release. Moreover, accumulating evidence suggests that dysfunction of the circadian rhythms due to genetic mutations or environmental factors (i.e., jet-lag or shift work) contribute to the development of many pathologies, including sleep disorders, mood and affective disorders such as major depression, bipolar disorder and schizophrenia, as well as the risk of metabolic and cardiovascular disorders.

Photopigments are molecules that react to light and mediate a number of processes and behaviours in animals. Visual pigments housed within the photoreceptors of the eye, such as the rods and cones in vertebrates are the best known, however, visual pigments are increasingly being found in other tissues, including other retinal cells, the skin and the brain. Other closely related molecules from the G protein family, such as melanopsin mediate light driven processes including circadian rhythmicity and pupil constriction. This Volume examines the enormous diversity of visual pigments and traces the evolution of these G protein coupled receptors in both invertebrates and vertebrates in the context of the visual and non-visual demands dictated by a species' ecological niche.

This landmark publication addresses key governance issues in the management of development, drawing seminal papers from the 1999 Jubilee conference proceedings of the journal Public Administration and Development. It fills a major gap in the literature and provides a timely review of the state-of-the-art which is both historically-grounded and forward looking. The book is divided into three parts:

• Part 1 poses three challenges spanning past, present and future: the transformation of state, markets and civil society; institutional performance; and humanising globalisation.
• Part 2 focuses on the great contemporary forces shaping public administration and development: state, market, and civil society. It uses case studies to draw conclusions and suggest areas for further research.
• Part 3 addresses important themes for the future: states and economies in transition, conflict management and resolution, poverty and local development, governmental integrity and trust.

Research on sensory processing or the way animals see, hear, smell, taste, feel and electrically and magnetically sense their environment has advanced a great deal over the last fifteen years. This book discusses the most important themes that have emerged from recent research and provides a summary of likely future directions. The book starts with two sections on the detection of sensory signals over long and short ranges by aquatic animals, covering the topics of navigation, communication, and finding food and other localized sources. The next section, the co-evolution of signal and sense, deals with how animals decide whether the source is prey, predator or mate by utilizing receptors that have evolved to take full advantage of the acoustical properties of the signal. Organisms living in the deep-sea environment have also received a lot of recent attention, so the next section deals with visual adaptations to limited light environments where sunlight is replaced by bioluminescence and the visual system has undergone changes to optimize light capture and sensitivity. The last section on central co-ordination of sensory systems covers how signals are processed and filtered for use by the animal. This book will be essential reading for all researchers and graduate students interested in sensory systems.

This book illuminates, and ultimately defends, attitudinal hypocrisy within the personal politics of Americans by utilizing statistical analyses within political history, social psychology, public opinion, and political science. Within a simple and parsimonious model of political attitudes, along with a novel method of calculating and operationalizing what attitudinal hypocrisy is, the book argues that the wielding of conflicting attitudes is a necessary characteristic of the American electorate. It uses an innovative multidisciplinary approach to answer some of the most pervasive questions in American politics: Why do conservatives preach the value of economic libertarianism, but decry the lack of government involvement in social issues and the military? Why do liberals extol the virtues of a regulatory economic state, but not a cultural or military state?

Daily rhythms are a ubiquitous feature of living systems. Generally, these rhythms are not just passive consequences of cyclic fluctuations in the environment, but instead originate within the organism. In mammals, including humans, the master pacemaker controlling 24-hour rhythms is localized in the suprachiasmatic nuclei of the hypothalamus (SCN). This circadian clock is responsible for the temporal organization of a wide variety of functions, ranging from sleep and food intake, to physiological measures such as body temperature, heart rate and hormone release. Moreover, accumulating evidence suggests that dysfunction of the circadian rhythms due to genetic mutations or environmental factors (i.e., jet-lag or shift work) contribute to the development of many pathologies, including sleep disorders, mood and affective disorders such as major depression, bipolar disorder and schizophrenia, as well as the risk of metabolic and cardiovascular disorders.

Photopigments are molecules that react to light and mediate a number of processes and behaviours in animals. Visual pigments housed within the photoreceptors of the eye, such as the rods and cones in vertebrates are the best known, however, visual pigments are increasingly being found in other tissues, including other retinal cells, the skin and the brain. Other closely related molecules from the G protein family, such as melanopsin mediate light driven processes including circadian rhythmicity and pupil constriction. This Volume examines the enormous diversity of visual pigments and traces the evolution of these G protein coupled receptors in both invertebrates and vertebrates in the context of the visual and non-visual demands dictated by a species' ecological niche.

Drawing on diverse theoretical perspectives, this book examines questions of youth citizenship and participation by exploring their meanings in policy, practice and youth experience. It examines young people's participation in non-government and youth-led organisations, and asks what can be done to bridge the democratic disconnect.

The ultimate guide to the current rules and regulations that govern the securities industry?including amendments in 2010

Providing readers with expert coverage of domestic securities regulation, this book fills the need for coverage of securities regulations, defining, describing, and explaining everything professionals need to know about domestic securities regulation.Examines the current securities rulesProvides an overview of the latest regulations for this industryIncludes a description of the various government regulations of securities markets, and securities transactions

Since the corporate scandals of 2002, this industry has seen intense scrutiny of how it is regulated. Regulation of Securities, Markets, and Transactions demystifies the new laws and regulations with straightforward, to-the-point coverage professionals need.

Scores of wild species and ecosystems around the world face a variety of human-caused threats, from habitat destruction and fragmentation to rapid climate change. But there is hope, and it, too, comes in a most human form: zoos and aquariums. Gathering a diverse, multi-institutional collection of leading zoo and aquarium scientists as well as historians, philosophers, biologists, and social scientists, The Ark and Beyond traces the history and underscores the present role of these organizations as essential conservation actors. It also offers a framework for their future course, reaffirming that if zoos and aquariums make biodiversity conservation a top priority, these institutions can play a vital role in tackling conservation challenges of global magnitude. While early menageries were anything but the centers of conservation that many zoos are today, a concern with wildlife preservation has been an integral component of the modern, professionally run zoo since the nineteenth century. From captive breeding initiatives to rewilding programs, zoos and aquariums have long been at the cutting edge of research and conservation science, sites of impressive new genetic and reproductive techniques. Today, their efforts reach even further beyond recreation, with educational programs, community-based conservation initiatives, and international, collaborative programs designed to combat species extinction and protect habitats at a range of scales. Addressing related topics as diverse as zoo animal welfare, species reintroductions, amphibian extinctions, and whether zoos can truly be “wild,” this book explores the whole range of research and conservation practices that spring from zoos and aquariums while emphasizing the historical, scientific, and ethical traditions that shape these efforts. Also featuring an inspiring foreword by the late George Rabb, president emeritus of the Chicago Zoological Society / Brookfield Zoo, The Ark and Beyond illuminates these institutions’ growing significance to the preservation of global biodiversity in this century.

The recent growth in unconventional natural gas production has also produced a profusion of publications on the exploration, development, production, infrastructure, economics, uses, and environmental impacts of these resources. This book summarises the current state of published descriptions of the potential environmental impacts of unconventional natural gas upstream operations within the Lower 48 United States. It also examines the technology, impacts and regulations of hydraulic fracturing, which is a key technique that has enabled the economic production of natural gas from shale deposits, or plays.

How can Africans escape the control of the complex power relationships established during Colonization and successfully achieve self-development? More importantly, and the primary concern of this book, can African female characters ever hope to arrive at such individuation given the dual challenges of the power structures defined and enforced by European colonizers and the patriarchal structures that contort issues related to gender? Tracing Personal Expansion reads late 20th Century works by African female novelists Buchi Emecheta, Tsitsi Dangarembga, and Calixthe Beyala as modern Bildungsromane, novels of self-development, to reveal the dynamics, complexities, and challenges the characters and authors experience. By exploring the possibility of self-development in African female protagonists, this engrossing work augments existing feminist critiques that have analyzed the possibilities and potentials for the individuation of mostly Western, mostly European female characters.