Parasites experience two environments; one reflecting external conditions, the other created by the living host. The subjects of this volume are relevant to evolution, ecology, physiology, biochemistry, immunology, molecular biology and phylogenetic analysis. Papers review familiar and unfamiliar extreme physical conditions from low temperatures and desiccation to the powerful water currents faced by some fish parasites. The environment created by the host and parasite adaptation to host immunity is covered in several papers, including immune evasion, host-switching and the effect of parasites on the evolution of immunity.

For several years there has been a growing interest in understanding the dynamics of parasites in ecosystems, as well as the diversity of ways in which they influence ecosystem functioning through their effects on host populations and communities. Ecologists, epidemiologists, evolutionary biologists, and other scientists are increasingly coming to realise that parasites must be taken into account when studying ecosystems. Parasitism and Ecosystems summarizes current knowledge on this topic, providing a comprehensive overview for researchers and students. It represents the first synthesis of both the roles and the consequences of pathogens in ecosystems, utilising well-documented case-studies to illustrate the main issues as well as identifying prospects for future research.

The papers in this volume examine the natural variations in parasites and their hosts, emphasizing the need for information on the nature and origins of their variations. All organisms vary genetically and phenotypically. This variability, when combined with the variety of interactions between parasites and their hosts, leads to the need to understand the practical significance of the variations possible. Variations in host fitness and/or parasite phenotypes can lead to altered disease rates and host mortality. They can also possibly lead to determining improved means of parasite control.

Functional Metabolism of Cells is the first comprehensive survey of metabolism, offering an in-depth examination of metabolism and regulation of carbohydrates, lipids, and amino acids. It provides a basic background on metabolic regulation and adaptation as well as the chemical logic of metabolism, and covers the interrelationship of metabolism to life processes of the whole organism. The book lays out a structured approach to the metabolic basis of disease, including discussion of the normal pathways of metabolism, altered pathways leading to disease, and use of molecular genetics in diagnosis and treatment of disease. It also takes a unique comparative approach in which human metabolism is a reference for metabolism in microorganisms and plant design, and presents novel coverage of development and aging, and human health and animal adaptation. The final chapter reviews the past and future promise of new genetic approaches to treatment and bioinformatics. This, the most exhaustive treatment of metabolism currently available, is a useful text for advanced undergraduates and graduates in biochemistry, cell/molecular biology, and biomedicine, as well as biochemistry instructors and investigators in related fields.

Encyclopedia of Environmental Health, Second Edition, Six Volume Set presents the newest release in this fundamental reference that updates and broadens the umbrella of environmental health, especially social and environmental health for its readers. There is ongoing revolution in governance, policies and intervention strategies aimed at evolving changes in health disparities, disease burden, trans-boundary transport and health hazards. This new edition reflects these realities, mapping new directions in the field that include how to minimize threats and develop new scientific paradigms that address emerging local, national and global environmental concerns. Represents a one-stop resource for scientifically reliable information on environmental health Fills a critical gap, with information on one of the most rapidly growing scientific fields of our time Provides comparative approaches to environmental health practice and research in different countries and regions of the world Covers issues behind specific questions and describes the best available scientific methods for environmental risk assessment

The new and updated edition of this accessible text provides a comprehensive overview of the comparative physiology of animals within an environmental context. Includes two brand new chapters on Nerves and Muscles and the Endocrine System. Discusses both comparative systems physiology and environmental physiology. Analyses and integrates problems and adaptations for each kind of environment: marine, seashore and estuary, freshwater, terrestrial and parasitic. Examines mechanisms and responses beyond physiology. Applies an evolutionary perspective to the analysis of environmental adaptation. Provides modern molecular biology insights into the mechanistic basis of adaptation, and takes the level of analysis beyond the cell to the membrane, enzyme and gene. Incorporates more varied material from a wide range of animal types, with less of a focus purely on terrestrial reptiles, birds and mammals and rather more about the spectacularly successful strategies of invertebrates. A companion site for this book with artwork for downloading is available at: www.blackwellpublishing.com/willmer/

The readings collected in Organizational Sociology are organized so as to direct attention to the six major theoretical traditions which have emerged since the 1960s to guide research and interpretation of organizational structure and performance. The traditions reviewed are: Contingency theory, Resource dependence. Population and Community ecology, Transactions costs economics, Neo-Marxist theory and Institutional Theory. Major statements of each theory are presented together with examples of related empirical research. A concluding section provides examples of recent attempts to combine and integrate two or more of these theories, as analysts attempt to account for some aspects of organization. Rather than pitting one perspective against another, contemporary analysts are more likely to selectively combine elements from several theories in order to better understand the phenomenon of interest.

Adverse climate impacts are already evident across Southern Africa and pose a serious threat to the development prospects of the region's societies. Sustainable development in this region will depend on the rapid development and implementation of effective adaptation measures. This volume identifies the new socioeconomic and political boundaries to development that result from ongoing climate change in Southern Africa. The collected papers explore the region's potential for a transition to development strategies that combine meaningful socioeconomic investment and adaptation measures while also improving livelihoods in the region. The chapters are backed up by detailed case studies which underscore the urgent need for national governments and multilateral agencies to develop strategies to support Southern Africa's societies in adapting to climate change.

Proceedings of a workshop held at the International Center for Agricultural Research in the Dry Areas, Aleppo, Syria, November 30 to December 3, 1987