ADAPTIVE MANAGEMENT FORUM, Part 4: Case studies from the Bay Delta system

Presentations highlight the Montezuma Wetlands Project and the Nigiri Project Adaptive management is widely regarded as an effective approach to environmental management in the face of uncertainty because the approach provides a way to build science and learning into management practices under changing conditions.  And while implementation of adaptive management is still challenging in the Delta, there are some examples […]

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ADAPTIVE MANAGEMENT FORUM, Part 3: Challenges and lessons learned with adaptive management in the Bay-Delta

Panel of Delta project managers discuss how they apply adaptive management in their projects Adaptive management is defined in the Delta Reform Act as “a framework and flexible decision making process for ongoing knowledge acquisition, monitoring, and evaluation leading to continuous improvements in management planning and implementation of a project to achieve specified objectives”.  Although the Delta Reform Act calls […]

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ADAPTIVE MANAGEMENT FORUM, Part 2: How adaptive management is applied in other ecosystems

Presentations highlight structured decision making, collective action on invasive species, and a scoring system for restoration projects Adaptive management is a strategy for making management decisions under uncertain conditions using the best available science rather than repeatedly delaying action until more information is available.  The adaptive management approach integrates learning into management decisions and providing an approach to revise projects […]

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ADAPTIVE MANAGEMENT FORUM, Part 1: Panel shares perspectives on and experience with adaptive management

Panelists discuss what adaptive management is in a practical sense and how it can effectively be implemented in the Delta Adaptive management is widely regarded as an effective approach to environmental management in the face of uncertainty because the approach provides a way to build science and learning into management practices under changing conditions.  However, while adaptive management has been […]

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SAN FRANCISCO ESTUARY & WATERSHED JOURNAL: Freshwater flows in the Delta, Importance of wetland habitats to waterbirds, Abundance of salmon on the Stanislaus, Largemouth bass diets, Fishing trawls

In this issue: Clarifying Effects of Environmental Protections on Freshwater Flows to—and Water Exports from—the San Francisco Bay Estuary: Gregory J. Reis, Jeanette K. Howard, and Jonathan A. Rosenfield DOI: https://doi.org/10.15447/sfews.2019v17iss1art1 The Relative Importance of Agricultural and Wetland Habitats to Waterbirds in the Sacramento–San Joaquin River Delta of California David Shuford, Matthew E. Reiter, Kristin A. Sesser, Catherine M. Hickey, and […]

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BAY DELTA SCIENCE CONFERENCE: Smelt in Hot Water: Is Thermal Stress the Final Blow for Delta Smelt?

Studies show fall water temperatures may play more of a role in Delta smelt survival than flow augmentation Managing freshwater outflow in late winter-early spring to maintain the Low-Salinity Zone in Suisun Bay has been one of the primary management strategies for supporting Delta Smelt and their habitat. Meanwhile, fall flows have declined over time due to freshwater exports and […]

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BAY DELTA SCIENCE CONFERENCE: Dark Carbon and a Return to Abundance: How Detrital Floodplain Food Webs Can Help Recover Endangered Fish

In the pre-development Central Valley, winter-spring flooding once created a vast mosaic of productive wetland habitats that teemed with fish and wildlife. A major driver of this wildlife abundance was terrestrial carbon made available to aquatic food webs when floodplains were inundated. Nineteenth and twentieth-century investments in drainage and a network of dams, canals, and levees transformed the Central Valley’s […]

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DR. JAY LUND: Water Supply Reliability Estimation: An overview

Water supply reliability.  It’s a term often talked about in the realm of California water, but what does it really mean?  And how can you describe it in quantitative terms?  As the Delta Independent Science Board prepares to tackle the subject, Dr. Jay Lund gave this seminar on water supply reliability and how to estimate it as preparation for a […]

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BAY DELTA SCIENCE CONFERENCE: Monitoring and Managing Sea-Level Rise Impacts on Tidal Marshes in the San Francisco Estuary

Once not all that long ago, the prevailing thought was that if tidal marsh remnants were protected and carefully managed, they would persist for the foreseeable future, providing sanctuary for tidal marsh species that are at-risk due to habitat loss and fragmentation. However, a series of recent independent studies have demonstrated that mature marshes are vulnerable to marsh drowning due […]

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BAY DELTA SCIENCE CONFERENCE: Science-Based Regulatory Permitting for Resilient Tidal Habitat Restorations

The permitting of tidal restoration projects is most often a costly and time-consuming process, causing substantial delays in implementation while endangered and threatened species remain at risk. Given the accelerating nature of sea level rise, restoration of tidal habitats that are resilient to climate change should be implemented on a large scale and soon to have any chance of contributing […]

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