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A conceptual model for floodplains in the Sacramento-San Joaquin Delta

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A conceptual model for floodplains in the Sacramento-San Joaquin Delta
San Francisco Estuary and Watershed Science | October 3, 2012...
Summary
Floodplains are among the most biologically productive and diverse ecosystems on Earth and they provide significant benefits to society such as attenuation of...
Floodplains are among the most biologically productive and diverse ecosystems on Earth and they provide significant benefits to society such as attenuation of floodwaters, groundwater recharge, filtration of nutrients and sediments, carbon sequestration, fisheries productivity and recreation. However, floodplains are also among the most converted and threatened ecosystems. Floodplain habitats in the Sacramento-San Joaquin Delta, and throughout California’s Central Valley, have been greatly reduced from their historic extent and key processes that create and maintain floodplains, such as flood flows and meander migration, have been greatly altered. These widespread alterations to habitats and processes have lead to declines in many species’ populations in California’s Central Valley and Delta, creating challenges for both environmental and water management. To address these challenges numerous entities and programs are now focused on restoring floodplains and other Delta habitats. This paper provides a conceptual model for floodplains that characterizes the key features and identifies the critical processes, drivers, and linkages that allow floodplains to produce a variety of functional outputs of management importance. These outputs include: (1) the floodplain habitat mosaic, including riparian vegetation and its associated wildlife; (2) spawning and rearing habitat for native fish; and (3) food-web productivity that can support native fish on the floodplain as well as be exported to downstream ecosystems. The model emphasizes that the production of these outputs from floodplains requires vertical and lateral hydrological connectivity across a broad range of flow conditions. For example, long-duration flooding in the spring promotes native fish spawning and food-web productivity that benefits native species.

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A Delta Renewed: A Guide to Science-Based Ecological Restoration in the Sacramento-San Joaquin Delta
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A Delta Renewed: A Guide to Science-Based Ecological Restoration in the Sacramento-San Joaquin Delta
San Francisco Estuary Institute | November 15, 2016...
Summary
This final report of the Delta Landscapes Project, A Delta Renewed, offers guidance for creating and maintaining landscapes that can provide desired ecological...

This final report of the Delta Landscapes Project, A Delta Renewed, offers guidance for creating and maintaining landscapes that can provide desired ecological functions for decades to come.

Based on extensive research into how the Sacramento-San Joaquin Delta used to function, how it has changed, and how it is likely to evolve, we make recommendations for how to re-establish the dynamic natural processes that can sustain native Delta wildlife as healthy populations into the future. The approach, building on work others have piloted and championed, is to restore or emulate natural processes where possible, establish an appropriate configuration of habitat types at the landscape scale, and use multi-benefit management strategies to create a more viable Delta ecosystem that can adapt and continue to provide valued functions as the climate changes.

This approach is designed to integrate with the human landscape: ecosystem improvements as a part of a robust agricultural economy, water infrastructure and diversions, and urbanized areas. Strategic restoration which builds on the history and ecology of the region can contribute to the strong sense of place and recreational value of the Delta in the future.

See more at: http://www.sfei.org/projects/delta-landscapes-project#sthash.RryQdaII.dpuf

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A Delta Transformed: Ecological Functions, Spatial Metrics, and Landscape Change in the Sacramento-San Joaquin Delta
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A Delta Transformed: Ecological Functions, Spatial Metrics, and Landscape Change in the Sacramento-San Joaquin Delta
San Francisco Estuary Institute | October 1, 2014...
Summary
In A Delta Transformed, completed in 2014, SFEI researchers used the spatial data generated in the Delta Historical Ecology Investigation, as well as...
In A Delta Transformed, completed in 2014, SFEI researchers used the spatial data generated in the Delta Historical Ecology Investigation, as well as updated modern vegetation and land cover datasets, to carry out detailed analyses of how the Delta landscape has been altered since the early-1800s. By quantifying changes in metrics relevant to native wildlife (such as the extent and timing of inundation, habitat patch sizes, length of channel networks), the report provides a foundation for defining, designing, and evaluating landscapes that support desirable ecological functions in the future.

See more at: http://www.sfei.org/projects/delta-landscapes-project#sthash.RryQdaII.dpuf

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A freshwater conservation blueprint for California: prioritizing watersheds for freshwater biodiversity

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A freshwater conservation blueprint for California: prioritizing watersheds for freshwater biodiversity
Freshwater Science, University of Chicago Press Journals | April 18, 2018...
Summary
Conservation scientists have adapted conservation planning principles designed for protection of habi- tats ranging from terrestrial to freshwater ecosystems. We applied current approaches...

Conservation scientists have adapted conservation planning principles designed for protection of habi- tats ranging from terrestrial to freshwater ecosystems. We applied current approaches in conservation planning to prioritize California watersheds for management of biodiversity. For all watersheds, we compiled data on the pre- sence/absence of herpetofauna and fishes; observations of freshwater-dependent mammals, selected invertebrates, and plants; maps of freshwater habitat types; measures of habitat condition and vulnerability; and current manage- ment status. We analyzed species-distribution data to identify areas of high freshwater conservation value that op- timized representation of target taxa on the landscape and leveraged existing protected areas. The resulting priority network encompasses 34% of the area of California and includes ≥10% of the geographic range for all target taxa. High-value watersheds supported nontarget freshwater taxa and habitats, and focusing on target taxa may provide broad conservation value. Most of the priority conservation network occurs on public lands (69% by area), and 46% overlaps with protected areas already managed for biodiversity. A significant proportion of the network area is on private land and underscores the value of programs that incentivize landowners to manage freshwater species and habitats. The priority conservation areas encompass more freshwater habitats/ha than existing protected areas. Land use (agriculture and urbanization), altered fire regimes, nonnative fish communities, and flow impairment are the most important threats to freshwater habitat in the priority network, whereas factors associated with changing climate are the key drivers of habitat vulnerability. Our study is a guide to a comprehensive approach to freshwater conservation currently lacking in California. Conservation resources are often limited, so prioritiza- tion tools are valuable assets to land and water managers.

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Adaptive Management – Applications Guide
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Adaptive Management – Applications Guide
U.S. Department of the Interior | January 1, 2012...
Summary
The Department of the Interior (DOI) Adaptive Management Working Group sponsored the development of this applications guide to provide thorough examples for a...
The Department of the Interior (DOI) Adaptive Management Working Group sponsored the development of this applications guide to provide thorough examples for a better understanding of how adaptive management can be implemented in the field.

The applications guide builds on the framework for adaptive management presented in the DOI Adaptive Management Technical Guide, and illustrates the elements of adaptive management with a large number of
natural resource examples.

The Adaptive Management Working Group includes representatives from most DOI bureaus and offices. Writing teams of resource managers, technical experts, and other specialists worked with the group to identify and describe applications of adaptive management in four thematic areas: climate change, water resources, energy resources, and the interface of human and natural systems.

These themes were chosen to illustrate the elements and processes of adaptive management because of their importance to DOI management responsibilities, the current interest in the thematic areas in using adaptive management, and the broad potential in each thematic area for learning-based management.

In writing this guide, we attempted to provide enough background about the elements of adaptive management implementation, and the challenges in implementing it, to give the reader a context for the resource examples. We also sought to provide enough detail in the examples to illustrate clearly the elements of adaptive management. Thus, the guide includes summaries of the principles and issues relevant to adaptive management, followed by descriptions of potential and actual applications in each of the four thematic areas.

The intention was to provide enough detail about the actual process of adaptive management to be informative, while limiting the scope, complexity, and size of the document.

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Adaptive Management – Technical Guide
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Adaptive Management – Technical Guide
U.S. Department of the Interior (DOI) | January 1, 2009...
Summary
The Department of the Interior (DOI) Adaptive Management Working Group (AMWG) sponsored the development of this technical guide to clearly and consistently define...
The Department of the Interior (DOI) Adaptive Management Working Group (AMWG) sponsored the development of this technical guide to clearly and consistently define adaptive management and describe conditions for its implementation. AMWG membership includes representatives from across DOI’s bureaus and offices.

A writing team of resource managers, technical experts, and other specialists worked with AMWG to address four basic questions concerning adaptive management: (1) What is adaptive management? (2) When should it be used? (3) How should it be implemented? (4) How can its success be recognized and measured? These questions were used to organize both the writing effort and the structure of the guide itself, with individual chapters addressing each of the questions.

The authors sought to describe adaptive management at an appropriate level of technical detail, while remaining focused on its definition, operational components, and conditions in which it applies. A key challenge was to provide sufficient detail for clarification, while limiting the length and complexity of the document.

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Analysis of the costs and benefits of using marsh restoration as a sea level rise adaptation strategy in San Francisco Bay
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Analysis of the costs and benefits of using marsh restoration as a sea level rise adaptation strategy in San Francisco Bay
The Bay Institute | February 22, 2013...
Summary
The purpose of this study is to examine opportunities to protect San Francisco Bay’s recovering tidal marsh ecosystems while helping bayshore communities to...
The purpose of this study is to examine opportunities to protect San Francisco Bay’s recovering tidal marsh ecosystems while helping bayshore communities to manage the impacts of sea level rise. Specifically, it considers the flood risk management functions that tidal marshes perform naturally and evaluates the possibility of integrating those functions into a co-beneficial shoreline management strategy. The study’s intended audience is planners, politicians, regulators, and other stakeholders with the authority to make or affect decisions that influence the configuration and use of the San Francisco Bay shoreline. The study examines the current functions of San Francisco Bay tidal marshes as well as existing flood risk management strategies. It considers how environmental conditions are likely to change in the era of climate change, and how we can adapt our marshes and our flood risk management practices to accommodate these changes.

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Averting disaster: Action now for the Salton Sea
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Averting disaster: Action now for the Salton Sea
Little Hoover Commission | September 1, 2015...
Summary
The Salton Sea is shrinking. Currently the state’s largest inland body of water, as it dries up, the Sea poses a substantial threat...
The Salton Sea is shrinking. Currently the state’s largest inland body of water, as it dries up, the Sea poses a substantial threat to public health and the environment. Left unaddressed, desert winds will lift dust from thousands of acres of newly-revealed lakebed and blow it into population centers, agricultural areas and world-class resort economies.

This impending crisis is long in the making, a policy paralysis driven by years of government process without implementing a fix. There are clear, understandable and specific mitigation steps that should be taken immediately. The decisions California leaders make in the near future about this remote desert lake will determine whether this dismal scenario will be averted. The Commission urges the Natural Resources Agency to begin implementing shovel-ready projects and the Governor and Legislature to immediately begin planning and funding the next phase of Salton Sea projects while developing a long-term restoration plan. ...

When California signed the QSA, it agreed to mitigate the impacts on the Salton Sea caused by the water transfers. The state clarified its intent to restore the sea through the QSA’s implementing legislation. Experts testified it would be tens of billions of dollars cheaper to mitigate the impacts of a shrinking sea up front than to deal with the adverse impacts
of inaction.

Fulfilling California’s commitment to the Salton Sea is an element of maintaining the terms of the QSA, which provides water security to many Californians. Continued inaction, and the consequent public health and environmental impacts, could undermine political support for the QSA. Further, in the larger picture, California’s fulfillment of its commitments is critical to its ability to negotiate future difficult agreements. ...

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Bathymetry and Digital Elevation Models of Coyote Creek and Alviso Slough, South San Francisco Bay, California
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Bathymetry and Digital Elevation Models of Coyote Creek and Alviso Slough, South San Francisco Bay, California
U.S. Geological Survey (USGS) | March 15, 2018...
Summary
In 2010 the U.S. Geological Survey (USGS), Pacific Coastal and Marine Science Center completed three cruises to map the bathymetry of the main...

In 2010 the U.S. Geological Survey (USGS), Pacific Coastal and Marine Science Center completed three cruises to map the bathymetry of the main channel and shallow intertidal mudflats in the southern most part of south San Francisco Bay. The three surveys were merged to generate comprehensive maps of Coyote Creek (from Calaveras Point east to the railroad bridge) and Alviso Slough (from the bay to the town of Alviso) to establish baseline bathymetry prior to the breaching of levees adjacent to Alviso and Guadalupe Sloughs as part of the South Bay Salt Pond Restoration Project. Since 2010 the USGS has conducted twelve additional surveys to monitor bathymetric change in this region as restoration progresses.

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California Salmonid Stream Habitat Restoration Manual
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California Salmonid Stream Habitat Restoration Manual
California Department of Fish and Wildlife (CDFW) | August 6, 2010...
Summary
The first edition of this manual, written by Gary Flosi and Forrest Reynolds, and published in 1991, formally synthesized and described the Department...
The first edition of this manual, written by Gary Flosi and Forrest Reynolds, and published in 1991, formally synthesized and described the Department of Fish and Game's approach and technical methods for anadromous salmonid habitat restoration. From 1991 through 1994 the first edition was broadly distributed and used as a "standard methods" text by many habitat restoration and resource inventory workers. As a result, many suggestions for improvement of the manual were received by the authors.

The second edition, by Flosi and Reynolds was supported by a team that included the authors of this third edition, and was published in October of 1994. The second edition included a number of revisions: 1) a reorganization of sections for project planning and project implementation; 2) the just then recently revised stream channel classification system developed by David Rosgen; 3) a new monitoring and evaluation section; 4) a listing of all databases used for resource inventory and analysis as presented in the manual; 5) a protocol for a large woody debris inventory; 6) a description of required environmental review processes and permits; 7) an expanded and updated listing of sensitive species; and 8) numerous editorial changes to text and data forms.

The third edition, like the second, incorporates changes recently developed in the practice of stream habitat inventory and restoration. The authorship list has changed with this edition to more accurately reflect the contributions of the writing team members. The manual is presented in binder form in this edition to more easily and economically incorporate future additions and developments as they evolve.

This fourth edition incorporates all changes, corrections, and revisions of this manual up to July 2010. The manual continues in binder form in this edition to easily and economically incorporate future additions and developments as they evolve.

The authors anticipate the continued widespread distribution and use of this manual will promote the implementation of the restoration techniques.

Readers should also be aware that computer data entry and data summary programs are available upon request for all data collection protocols presented in this manual. Updates to this manual are available on line at http://www.dfg.ca.gov/fish/Resources/HabitatManual.asp.

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A conceptual model for floodplains in the Sacramento-San Joaquin Delta

A conceptual model for floodplains in the Sacramento-San Joaquin Delta

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A Delta Renewed: A Guide to Science-Based Ecological Restoration in the Sacramento-San Joaquin Delta

A Delta Renewed: A Guide to Science-Based Ecological Restoration in the Sacramento-San Joaquin Delta

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A Delta Transformed: Ecological Functions, Spatial Metrics, and Landscape Change in the Sacramento-San Joaquin Delta

A Delta Transformed: Ecological Functions, Spatial Metrics, and Landscape Change in the Sacramento-San Joaquin Delta

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A freshwater conservation blueprint for California: prioritizing watersheds for freshwater biodiversity

A freshwater conservation blueprint for California: prioritizing watersheds for freshwater biodiversity

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Adaptive Management – Applications Guide

Adaptive Management – Applications Guide

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Adaptive Management – Technical Guide

Adaptive Management – Technical Guide

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Analysis of the costs and benefits of using marsh restoration as a sea level rise adaptation strategy in San Francisco Bay

Analysis of the costs and benefits of using marsh restoration as a sea level rise adaptation strategy in San Francisco Bay

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Averting disaster: Action now for the Salton Sea

Averting disaster: Action now for the Salton Sea

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Bathymetry and Digital Elevation Models of Coyote Creek and Alviso Slough, South San Francisco Bay, California

Bathymetry and Digital Elevation Models of Coyote Creek and Alviso Slough, South San Francisco Bay, California

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California Salmonid Stream Habitat Restoration Manual

California Salmonid Stream Habitat Restoration Manual

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