John A. Wiens – författare

Source-sink theories provide a simple yet powerful framework for understanding how the patterns, processes and dynamics of ecological systems vary and interact over space and time. Integrating multiple research fields, including population biology and landscape ecology, this book presents the latest advances in source-sink theories, methods and applications in the conservation and management of natural resources and biodiversity. The interdisciplinary team of authors uses detailed case studies, innovative field experiments and modeling, and comprehensive syntheses to incorporate source-sink ideas into research and management, and explores how sustainability can be achieved in today's increasingly fragile human-dominated ecosystems. Providing a comprehensive picture of source-sink research as well as tangible applications to real world conservation issues, this book is ideal for graduate students, researchers, natural-resource managers and policy makers.

The two volumes of John Wiens' Ecology of Bird Communities, first published in 1992, are recognised as having applications and importance beyond the study of birds to the wider study of ecology in general. The books contain a detailed synthesis of our understanding of the patterns of organisation of bird communities and of the factors that may determine them, drawing from studies from all over the world. The author, however, does more than simply review findings in bird community ecology. By emphasizing how proper logic and methods have or have not been followed and how different viewpoints have developed historically and have led to controversy, he extends the scope of these books far beyond the study of birds. Volume 1 Foundations and Patterns explores why avian community ecologists ask the questions they do and what philosophical and methodological approaches they have used to answer such questions. Most of the book is devoted to a critical evaluation of what is known about the nature and organisation of bird communities.

The two volumes of John Wiens' Ecology of Bird Communities have applications and importance to the whole field of ecology. The books contain a detailed synthesis of our current understanding of the patterns of organisation of bird communities and of the factors that may determine them, drawing from studies from all over the world. By emphasizing how proper logic and methods have or have not been followed and how different viewpoints have developed historically and have led to controversy, the scope of these books are extended far beyond the study of birds. Processes and Variations discusses the way in which bird community patterns have been interpreted. This second volume examines how the complexity and variability of natural environments may influence efforts to discern and understand the nature of these communities. Graduate students and professionals in avian biology and ecology will find these volumes a valuable stimulus and guide to future field studies and theory development.

Through a series of personal essays, this book addresses a wide array of past, current, and future issues in landscape ecology. The essays have been contributed by leading landscape ecologists from North America, Europe, and Australia, and provide an overview of the rich tapestry of viewpoints and perspectives that make landscape ecology at once a well-defined and yet also a frustratingly diverse discipline. The contributions span a range of topics and approaches, addressing theory as well as practice, science as well as application, conservation as well as utilization, and aquatic as well as terrestrial systems. The volume therefore provides informative and entertaining reading for beginning and advanced students, landscape managers, conservationists, and teachers.

Globally, more and more species are at risk of extinction as the environment and climate change. Many of these species require long-term management to persist - they are conservation-reliant. The magnitude of this challenge requires a rethinking of how conservation priorities are determined and a broader societal commitment to conservation. Choices need to be made about which species will be conserved, for how long, and by whom. This volume uses case studies and essays by conservation practitioners from throughout the world to explore what conservation reliance is and what it means for endangered-species management. Chapters consider threats to species and how they are addressed, legal frameworks for protecting endangered species, societal contexts and conflicts over conservation goals, and how including conservation reliance can strengthen methods for prioritizing species for conservation. The book concludes by discussing how shepherding nature requires an evaluation of societal values and ethics.

Short, compelling, but mostly thought-provoking essys that encompass many of the central issues shaping ecology and conservation in the changing world Collected essays from one of the best known ecologists and conservationists in the worldIncludes all issues at the cutting edge of the interface between ecology and conservationAttractive to a broad audience of ecologists, conservationists, natural resource managers, policy makers, and naturalists

In North America, concepts of Historical Range of Variability are being employed in land-management planning for properties of private organizations and multiple government agencies. The National Park Service, U.S. Fish & Wildlife Service, Bureau of Land Management, U.S. Forest Service, and The Nature Conservancy all include elements of historical ecology in their planning processes. Similar approaches are part of land management and conservation in Europe and Australia. Each of these user groups must struggle with the added complication of rapid climate change, rapid land-use change, and technical issues in order to employ historical ecology effectively. Historical Environmental Variation in Conservation and Natural Resource Management explores the utility of historical ecology in a management and conservation context and the development of concepts related to understanding future ranges of variability. It provides guidance and insights to all those entrusted with managing and conserving natural resources: land-use planners, ecologists, fire scientists, natural resource policy makers, conservation biologists, refuge and preserve managers, and field practitioners. The book will be particularly timely as science-based management is once again emphasized in United States federal land management and as an understanding of the potential effects of climate change becomes more widespread among resource managers.Additional resources for this book can be found at: www.wiley.com/go/wiens/historicalenvironmentalvariation.

Source-sink theories provide a simple yet powerful framework for understanding how the patterns, processes and dynamics of ecological systems vary and interact over space and time. Integrating multiple research fields, including population biology and landscape ecology, this book presents the latest advances in source-sink theories, methods and applications in the conservation and management of natural resources and biodiversity. The interdisciplinary team of authors uses detailed case studies, innovative field experiments and modeling, and comprehensive syntheses to incorporate source-sink ideas into research and management, and explores how sustainability can be achieved in today's increasingly fragile human-dominated ecosystems. Providing a comprehensive picture of source-sink research as well as tangible applications to real world conservation issues, this book is ideal for graduate students, researchers, natural-resource managers and policy makers.

Globally, more and more species are at risk of extinction as the environment and climate change. Many of these species require long-term management to persist - they are conservation-reliant. The magnitude of this challenge requires a rethinking of how conservation priorities are determined and a broader societal commitment to conservation. Choices need to be made about which species will be conserved, for how long, and by whom. This volume uses case studies and essays by conservation practitioners from throughout the world to explore what conservation reliance is and what it means for endangered-species management. Chapters consider threats to species and how they are addressed, legal frameworks for protecting endangered species, societal contexts and conflicts over conservation goals, and how including conservation reliance can strengthen methods for prioritizing species for conservation. The book concludes by discussing how shepherding nature requires an evaluation of societal values and ethics.