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The USA touts Chesapeake Bay as its premier environmental restoration programme, yet the Bay remains in poor condition.
Nonnative Oysters in the Chesapeake Bay discusses the proposed plan to offset the dramatic decline in the bay's native oysters by introducing disease-resistant reproductive Suminoe oysters from Asia. It suggests this move should be delayed until more is known about the environmental risks, even though carefully regulated cultivation of sterile Asian oysters in contained areas could help the local industry and researchers. It is also noted that even though these oysters eat the excess algae caused by pollution, it could take decades before there are enough of them to improve water quality.
Large-Scale Ecosystem Restoration presents case studies of five of the most noteworthy large-scale restoration projects in the United States: Chesapeake Bay, the Everglades, California Bay Delta, the Platte River Basin, and the Upper Mississippi River System. These projects embody current efforts to address ecosystem restoration in an integrative and dynamic manner, at large spatial scale, involving whole (or even multiple) watersheds, and with complex stakeholder and public roles. Representing a variety of geographic regions and project structures, the cases shed light on the central controversies that have marked each project, outlining • the history of the project • the environmental challenges that generated it • the difficulties of approaching the project on an ecosystem-wide basis • techniques for conflict resolution and consensus building • the ongoing role of science in decision making • the means of dealing with uncertainties A concluding chapter offers a guide to assessing the progress of largescale restoration projects. Large-Scale Ecosystem Restoration examines some of the most difficult and important issues involved in restoring and protecting natural systems. It is a landmark publication for scientists, policymakers, and anyone working to protect or restore landscapes or watersheds.
The Chesapeake Bay is the nation’s largest estuary. After slow deterioration for several centuries, the Chesapeake Bay Program was launched in 1983 to restore it. After spending more than $24 billion, the results of the restoration program are disappointing. The Bay Program has arrested the decline of the Bay, but it has failed to achieve its restoration goals—something that will become more challenging with climate change. The rate of environmental change today is more rapid than at any time in the history of humanity. The concept of restoration—to return to an earlier time and condition—is an outmoded concept for coastal ecosystems like the Chesapeake Bay that are at the leading edge of change. A better strategy would be to focus on shaping the future Bay. While we cannot create the future Bay, we have many of the tools to shape it, tools that have never been used as a complement to existing efforts. Learn about the past and present of the Bay, how climate change will affect its future, and how we can intervene to shape the future of the Chesapeake.
This book explores a specific ecosystem in depth, in order to weave a story built on place and history. It incorporates the theme of a journey to help reveal the environment-human-health-food system-problem. While drawing on a historical approach stretching back to the American colonial era, it also incorporates more contemporary scientific findings. By crafting its story around a specific place, the book makes it easier for readers to relate to the content, and to subsequently use what they learn to better understand the role of food systems at the global scale.
The Chesapeake Bay is North America's largest and most biologically diverse estuary, as well as an important commercial and recreational resource. However, excessive amounts of nitrogen, phosphorus, and sediment from human activities and land development have disrupted the ecosystem, causing harmful algae blooms, degraded habitats, and diminished populations of many species of fish and shellfish. In 1983, the Chesapeake Bay Program (CBP) was established, based on a cooperative partnership among the U.S. Environmental Protection Agency (EPA), the state of Maryland, and the commonwealths of Pennsylvania and Virginia, and the District of Columbia, to address the extent, complexity, and sources of pollutants entering the Bay. In 2008, the CBP launched a series of initiatives to increase the transparency of the program and heighten its accountability and in 2009 an executive order injected new energy into the restoration. In addition, as part of the effect to improve the pace of progress and increase accountability in the Bay restoration, a two-year milestone strategy was introduced aimed at reducing overall pollution in the Bay by focusing on incremental, short-term commitments from each of the Bay jurisdictions. The National Research Council (NRC) established the Committee on the Evaluation of Chesapeake Bay Program Implementation for Nutrient Reduction in Improve Water Quality in 2009 in response to a request from the EPA. The committee was charged to assess the framework used by the states and the CBP for tracking nutrient and sediment control practices that are implemented in the Chesapeake Bay watershed and to evaluate the two-year milestone strategy. The committee was also to assess existing adaptive management strategies and to recommend improvements that could help CBP to meet its nutrient and sediment reduction goals. The committee did not attempt to identify every possible strategy that could be implemented but instead focused on approaches that are not being implemented to their full potential or that may have substantial, unrealized potential in the Bay watershed. Because many of these strategies have policy or societal implications that could not be fully evaluated by the committee, the strategies are not prioritized but are offered to encourage further consideration and exploration among the CBP partners and stakeholders.
The innovative book examines a problem of growing concern and importance: obtaining accurate estimates of the ecological costs of human activities. The book covers a wide range of subjects, from the management and function of ecosystems to ecological issues affecting public policy. It focuses on the trade-offs inherent in environmental and conservation policy. Ecosystems provide resources that can be extracted and are valued in the market place, but the delivery of those resources depends on the functioning of natural processes whose maintenance may involve substantial costs. Investigating state-of-the-art analyses in ecology, ecological risk assessment, and environmental economics, this pioneering resource will be of value to economists, ecologists, environmental policy makers, and resource management professionals.