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Earth Sciences

Earth Sciences : Ecology and Ecosystems
Urban Forestry: Toward an Ecosystem Services Research Agenda: A Workshop Summary

 Much of the ecological research in the past decades has focused on rural or wilderness areas. Today, however, ecological research has been taking place in our cities, where our everyday decisions can have profound effects on our environment. This research, ...

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Progress Toward Restoring the Everglades: The Fourth Biennial Review, 2012

Twelve years into the Comprehensive Everglades Restoration Project, little progress has been made in restoring the core of the remaining Everglades ecosystem; instead, most project construction so far has occurred along its periphery. To reverse ongoing ecosystem declines, it will ...

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Sustainable Water and Environmental Management in the California Bay-Delta

Extensively modified over the last century and a half, California's San Francisco Bay Delta Estuary remains biologically diverse and functions as a central element in California's water supply system. Uncertainties about the future, actions taken under the ...

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Ecosystem Services: Charting a Path to Sustainability

Natural environments provide enormously valuable, but largely unappreciated, services that aid humans and other earthlings. It is becoming clear that these life-support systems are faltering and failing worldwide due to human actions that disrupt nature's ability to do its beneficial ...

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Approaches for Ecosystem Services Valuation for the Gulf of Mexico After the Deepwater Horizon Oil Spill: Interim Report

On April 20, 2010, the Deepwater Horizon platform drilling the Macondo well in Mississippi Canyon Block 252 (DWH) exploded, killing 11 workers and injuring another 17. The DWH oil spill resulted in nearly 5 million barrels (approximately 200 million gallons) ...

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Achieving Nutrient and Sediment Reduction Goals in the Chesapeake Bay: An Evaluation of Program Strategies and Implementation

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 ...

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Assessing the Relationship Between Propagule Pressure and Invasion Risk in Ballast Water

The human-mediated introduction of species to regions of the world they could never reach by natural means has had great impacts on the environment, the economy, and society. In the ocean, these invasions have long been mediated by the uptake ...

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Progress Toward Restoring the Everglades:The Third Biennial Review - 2010

Although the progress of environmental restoration projects in the Florida Everglades remains slow overall, there have been improvements in the pace of restoration and in the relationship between the federal and state partners during the last two years. However, the ...

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Missouri River Planning:Recognizing and Incorporating Sediment Management

Historically, the flow of sediment in the Missouri River has been as important as the flow of water for a variety of river functions. The sediment has helped form a dynamic network of islands, sandbars, and floodplains, and provided habitats ...

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Assessment of Sea-Turtle Status and Trends:Integrating Demography and Abundance

All six species of sea turtles found in U.S. waters are listed as endangered or threatened, but the exact population sizes of these species are unknown due to a lack of key information regarding birth and survival rates. The U.S. ...

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