Products

We identify issues and uncertainties that pose obstacles to conservation and then—in collaboration with internal and external colleagues—develop science products that help overcome those obstacles.

2018 | Freshwater | Terrestrial | Planning | Science | Publications & Reports

Better late than never: a synthesis of strategic land retirement and restoration in California

Chris Lortie, Alex Filazzola, Rodd Kelsey, Abigail Hart, Scott Butterfield

Over the past 100 years, California's Central Valley has undergone a massive transformation from desert to a mosaic of farmland and urban development. This transformation has also meant many…

2018 | Freshwater | Terrestrial | Science | Publications & Reports

Impact of extreme drought and incentive programs on flooded agriculture and wetlands in California’s Central Valley

Matthew E. Reiter​, Nathan K. Elliott, Dennis Jongsomjit, Gregory H. Golet, Mark D. Reynolds

In the Central Valley of California, with 90% of the historic wetlands gone, waterbirds depend upon managed wetlands and seasonally flooded agriculture to meet their habitat needs. The 2013-2015…

2018 | Freshwater | Terrestrial | Marine | Planning | Science | Publications & Reports

Improving multi-objective ecological flow management with flexible priorities and turn-taking: a case study from the Sacramento River and Sacramento-San Joaquin Delta

Alexander C.A.D., F. Poulsen, D.C.E. Robinson, B.O. Ma , R.A. Luster

Management of the Sacramento River and Sacramento–San Joaquin Delta is one of California’s greatest challenges, requiring trade-offs between valued components that serve a multiplicity of…

2018 | Freshwater | Terrestrial | Science | Publications & Reports

Using ricelands to provide temporary shorebird habitat during migration

Gregory H. Golet, Candace Low, Simon Avery, Katie Andrews, Christopher J. McColl, Rheyna Laney, Mark D. Reynolds

Migratory birds face great challenges due to the climate change, conversion of historical stopover sites, and other factors. To help address these challenges, the Conservancy launched a dynamic…

2017 | Freshwater | Terrestrial | Planning | Publications & Reports

Identification of potentially suitable habitat for strategic land retirement and restoration in the San Joaquin Desert

H. Scott Butterfield, Rodd Kelsey, Abigail Hart, Tanushree Biswas, Mark Kramer, Dick Cameron, Laura Crane, Erica Brand

California's Sustainable Groundwater Management Act (SGMA) established a framework for sustainable, local groundwater management. SGMA requires groundwater-dependent regions to…

2017 | Freshwater | Terrestrial | Planning | Publications & Reports

Rethinking the Grid: Optimizing California’s Transmission System For Renewable Energy

Energy+Environmental Economics for The Nature Conservancy, Arne Olson, Doug Allen, Vivian Li, Emily Leslie

California leads the nation in the transition to a clean energy economy. However, current transmission planning processes limit development of new renewable resources. This report (slide deck),…

2017 | Terrestrial | Science | Publications & Reports

Ecosystem management and land conservation can substantially contribute to California’s climate mitigation goals

D. Richard Cameron, David C. Marvin, Jonathan M. Remucal, Michelle C. Passero

Combatting climate change will require using all available tools, especially those that contribute to other societal and economic goals, such as natural resource protection and energy security.…

2017 | Terrestrial | Science | Publications & Reports

A bustle in the hedgerow: Woody field margins boost on farm avian diversity and abundance in an intensive agricultural landscape

Sacha K. Heath, Candan U. Soykan, Karen L. Velas, Rodd Kelsey, Sara M. Kross

This paper discusses the potential for on-farm habitats along field margins as a conservation strategy within intensively cultivated landscapes. Specifically, the study examined the effects of woody…

2017 | Terrestrial | Planning | Publications & Reports

Quantifying Trade-Offs Among Ecosystem Services, Biodiversity, and Agricultural Returns in an Agriculturally Dominated Landscape Under Future Land‑Management Scenarios

Emma C. Underwood, Rachel A. Hutchinson, Joshua H. Viers, T. Rodd Kelsey, Trisha Distler, Jaymee Marty

This paper discusses and provides modeled estimates of the biodiversity and ecosystem service outcomes of three different future land use scenarios, compared to current land uses, in a cultivated…

2017 | Terrestrial | Planning | Microsite

The Bay Area Greenprint

Carrie Schloss, Elizabeth O'Donoghue, Christa Cassidy, Tom Robinson, Serena Unger, Adam Garcia, Dan Rademacher

The Bay Area Greenprint tool provides land use and infrastructure agencies, consultants, and advocates easily accessible, interpretable, and scientifically robust information on habitat and ecosystem…

2017 | Terrestrial | Planning | Science | Publications & Reports

A General Framework for Setting Quantitative Population Objectives for Wildlife Conservation

Kristen E. Dybala, Neil Clipperton, Thomas Gardali, Gregory H. Golet, Rodd Kelsey, Stefan Lorenzato, Ronald Melcer, Jr., Nathaniel Seavy, Joseph G. Silveira, Gregory S. Yarris

Quantitative population objectives are necessary to achieve conservation goals of secure or robust wildlife populations, however, existing methods for setting them often require extensive…

2016 | Terrestrial | Science | Publications & Reports

Inconsistent food safety pressures complicate environmental conservation for California produce growers

Patrick Baur, Laura Driscoll, Sasha Gennet, Daniel Karp

Since a deadly outbreak of pathogenic E. coli in California spinach in 2006, produce growers have been pressured to implement on-farm practices, such as native vegetation removal, in the name of food…

2016 | Freshwater | Terrestrial | Technology | Science | Publications & Reports

Pop-up wetland habitats benefit migrating birds and farmers

Christopher J. McColl, Katie Andrews, Mark Reynolds, Gregory H. Golet

In response to the decline of wetland habitats for migrating and wintering water birds in California, the Conservancy developed a program called BirdReturns that creates “pop-up”…

2016 | Terrestrial | Science | Publications & Reports

Agricultural practices for food safety threaten pest control services for fresh produce

Daniel S. Karp, Rebekah Moses, Sasha Gennet, Matthew S. Jones, Shimat Joseph, Leithen K. M'Gonigle, Lauren C. Ponisio, William E. Snyder, Claire Kremen

Food safety concerns have led to pressure on farmers to simplify their farms and landscapes, rather than diversify them. This study demonstrates that two practices – elimination of…

2016 | Terrestrial | Publications & Reports

Field-scale habitat complexity enhances avian conservation and avian-mediated pest-control services in an intensive agricultural crop

Sara M. Kross, T. Rodd Kelsey, Chris J. McColl, Jason M. Townsend

Globally, loss of biodiversity and impacts to natural services and human health have been driven to a significant degree by loss of natural habitats due to agricultural land conversion and management…

2016 | Freshwater | Terrestrial | Planning | Publications & Reports

Future land-use related water demand in California

Tamara S Wilson, Benjamin M Sleeter, D Richard Cameron

This publication discusses how land use changes in Mediterranean California will drive changes in water use between urban uses and annual vs. perennial crops. The authors used a state-and-transition…

2016 | Terrestrial | Science | Publications & Reports

Historic and Recent Winter Sandhill Crane Distribution in California

Gary L. Ivey, Caroline P. Herziger, David A. Hardt, Gregory H. Golet

Understanding the geographic distribution and long-term dynamics of Sandhill Crane (Grus canadensis) foraging areas and night roost sites is fundamental to their conservation and management. The…