Synopses & Reviews
Since John Muir and Gifford Pinchot championed the protection of land a century ago, ecologists and conservationists have struggled with simple questions of ecological management: exactly what aspects of our natural resources should we protect, and how should we protect them? At the heart of this debate lies the concept of the ecosystem--a term that has ironically grown more difficult to define as our understanding of ecological relationships has evolved. In this compelling book, Doug traces the notion of the ecosystem from its early application in American land conservation through the modern approach to natural resources management. Doug makes the case that the classic ecosystem concept is as deeply ingrained in the American conservation movement as it is deeply flawed. As a result, many present-day land protection efforts are fixated on the preservation of an ideal set of species as a coherent and sustainable unit, even as ecological research increasingly suggests that no such unit exists. Through critical analysis of ecosystem management in theory and practice, Protected Land presents an argument for re-framing the human relationship with ecological systems to embrace, rather than suppress, the forces of change.
Review
From the reviews: "This new volume may be slender, but brevity, coupled with clarity, is a virtue here. The book focuses on 'ecological protection and management, in the face of our changing concept of the ecosystem.' ... The simple, lucid prose sustains the reader, making complexity easy to grasp. This book is slated to become a must read for students, conservation professionals, and citizen activists. Summing Up: Highly recommended. Lower-division undergraduates and above; general readers." (K. B. Sterling, Choice, Vol. 48 (8), April, 2011)
Synopsis
Ecosystems have received a lot of attention in recent literature, and with reason, since mankind is daily degrading his environment. This is a book about ecosystems: the ways in which we perceive them, conceptualize them, protect them, and manipulate them.
Synopsis
By many measures, Earth's ecosystems are stressed. Actually, it may be more accurate to say that Earth's remaining ecosystems are stressed. The fact is that most of the planet's biomes support only a fraction of the biological communities they once did, primarily because humans have converted large areas of land to alternate uses. More than two-thirds of the global temperate forests, half of the grasslands, even a third of desert ecosystems have been conscripted for human uses like agriculture, construction, harvest and extraction. Cultivation alone covers a quarter of the habitable terrestrial surface. Aquatic ecosystems have not fared any better. An estimated half of the world's wetlands are gone, particularly those of coastal regions or on arable land. About a fifth of the coral reefs and a third of the m- grove swamps of a century ago have been lost in just the last few decades. The volume of water impounded by dams quadrupled over the same period - it now far exceeds the volume of water in unimpeded rivers (Millennium Ecosystem Assessment 2005; Mitsch and Gosselink 2007). So any assessment of ecosystem status is necessarily an analysis of fragments and remnants, and many of these are degraded by one or more anthropogenic stressors.
Synopsis
Four Ecosystems, Four Questions.- Four Ecosystems, Four Questions.- Ecosystems in Theory.- The Ecosystem Idea and Ideal.- A Thing is Right.- Disturbance, Stress and Resilience.- Invasion.- Ecosystems in Practice.- Very Small Ecosystems.- Forested Ecosystems.- Grassland Ecosystems.- Freshwater Ecosystems.- Saltwater Ecosystems.- Protecting the Shifting Quilt.
Synopsis
This is a book about ecosystems: the ways in which we perceive them, conceptualize them,protect them, and manipulate them. Ecosystems have been given considerable attention inrecent literature, and with good reason. Our growing comprehension of irreplaceable andimperiled ecosystem services has made it clear that we are in the midst of an ecological crisis.In response, various organizations, agencies, and individuals have dedicated themselves to thepreservation, restoration, and maintenance of ecological systems. The United States is a worldleader in this regard, building upon the legacy of giants like Thoreau, Muir, and Leopold.And yet, even as we scramble to rehabilitate and sustain ecosystems, the debate on their naturecontinues. In one corner are proponents of holism--those that see ecosystems as definableunits with recognizable and regenerative stable states.
Table of Contents
Preface.- Four Ecosystems, Four Questions; Oak Openings, Ohio; Kissimmee River, Florida; Tallgrass Prairie, Kansas; Six Rivers National Forest, California; Four Questions.- Part 1: Ecosystems in Theory.- The Ecosystem Idea and Ideal; Preservation, Conservation, and Ecology; Gleason and Individualism; Leopoldian Preservation and Conservation; Hutchinson, Holism, and Individualism; The New Ecology; Preservation of the Ideal; Toward an Ecosystem Approach to Management.- A Thing is Right; The Adaptive Cycle; Diversity, Stability, Health and Integrity.- Disturbance, Stress, and Resilience; Disturbance; Resilience; Complications of Stress.- Invasion; Colonization and Succession; Factors of Colonization; Nonnative Invaders; Passengers and Drivers; Ecosystem Function and Service; Ecosystem Service and Invasion; Eradication; A Conservation Dilemma.- Part 2: Ecosystems in Practice.- Very Small Ecosystems; Microbial Ecosystems; Biofilms as Model Ecosystems; Biofilms as Patches; Micro- and Macro-Ecosystems.- Forested Ecosystems; The Forest Sanctuary; The Monongahela Experiment; Wilderness Management; Healthy Forests; Unmanaged Forest Succession.- Grassland Ecosystems.- Grasslands, Short and Tall; Prairie Restoration and Umbrella Species; Land Trust Grasslands.- Freshwater Ecosystems; Wetlands; Lakes; Rivers.- Saltwater Ecosystems; Intertidal Ecosystems; Subtidal Ecosystems; Deeper Water.- Protecting the Shifting Quilt; Holism, Strong and Weak; The Four Horsemen Revisited; Along the Continuum; Protecting the Shifting Quilt.- Index.