Systematic, science-based conservation planning is a hallmark of the Conservancy. For biodiversity to thrive, habitats need to be protected, enhanced, or restored not just in the still wild places on the planet but also where people live and make their livelihoods. 

Multi-disciplinary planning can help elucidate where the highest priority places are and what needs to happen there – and inform tradeoffs between conservation and other societal values.

Science in Action

Terrestrial | Planning | Technology | Economics

Wildfire and Communities

How can land protection and restoration help protect communities from wildfire?

Terrestrial | Marine | Planning

TNC and the U.S. Navy

How can we protect natural resource and coastal military assets from sea level rise?

2015 | Freshwater | Terrestrial | Marine | Planning | Science | Publications & Reports

Recommendations for improving recovery criteria under the US Endangered Species Act

Doak, D.F., G.K. Himes Boor, V.J. Bakker, W.F. Morris, A. Louthan, S.A. Morrison, A. Stanley, L. Crowder

One of the key components of a recovery plan for a threatened or endangered species in the United States is the set of recovery criteria that will be used to evaluate progress in abating the threats…

2014 | Freshwater | Terrestrial | Marine | Planning | Science | Publications & Reports

A framework for conservation in a human-dominated world

Scott Morrison

Recognition of the magnitude of human impacts on the planet and the urgent need to increase the pace and scale of conservation has led many conservation organizations to emphasize conservation for…

2014 | Terrestrial | Planning | Publications & Reports

Modeling residential development in California from 2000 to 2050: Integrating wildfire risk, wildland and agricultural encroachment

M.L. Mann, P. Berck, M.A. Moritz, E. Batllori, J.G. Baldwin, C.K. Gately, D.R. Cameron

Between 1940 and 2000, nearly 10 million housing units were constructed in California. This new development led to increased interaction between human and natural communities. Tha authors of this…

2014 | Freshwater | Marine | Planning | Publications & Reports

An Inventory and Classification of U.S. West Coast Estuaries

Walter N. Heady, Kevin O'Connor, Jennifer Kassakian , Kate Doiron, Charles Endris, Daniel Hudgens, Ross P. Clark , Jena Carter , Mary G. Gleason

Estuaries are some of the most productive ecosystems on the planet. This inventory classifies more than 600 coastal confluences on the West Coast of the United States. Each estuary was classified…

2014 | Terrestrial | Planning | Publications & Reports

Whither the Rangeland?: Protection and Conversion of California’s Rangeland Ecosystems

Cameron DR, Marty J, Holland RF

This study assesses the amount of rangeland conversion between 1984 and 2008 in California. The researchers analyzed data from the California Farmland Mapping and Monitoring Program to see where…

2014 | Terrestrial | Planning | Publications & Reports

Demography linked to climate change projections in an ecoregional case study

B. C. Mclaughlin, C. N. Morozumi, J. MacKenzie, A. Cole, S. Gennet

Anticipating how species will move as the climate changes is a fundamental concern in 21st century conservation. This study modeled potential responses of blue oak (Quercus douglasii), an…

2014 | Terrestrial | Planning | Science | Maps & Webmaps

Actions Likely to Increase Plant and Animal Resilience to Climate Change

Kirk Klausmeyer

This webmap provides regional climate projections with information about topography, coastal proximity and level of habitat fragmentation to help land managers identify concrete conservation…

2013 | Freshwater | Terrestrial | Marine | Planning | Publications & Reports

Biodiversity in a changing climate: a synthesis of current and projected trends in the US

Michelle D Staudinger, Shawn L Carter, Molly S Cross, Natalie S Dubois, J Emmett Duffy, Carolyn Enquist, Roger Griffis, Jessica J Hellmann, Joshua J Lawler, John O'Leary, Scott A Morrison, Lesley Sneddon, Bruce A Stein, Laura M Thompson, Woody Turner

This paper synthesizes research pertaining to climate change impacts on biodiversity, reviewed by the biodiversity technical working group of the 2014 National Climate Assessment. The paper focuses on…

2013 | Freshwater | Terrestrial | Planning | Science | Publications & Reports

Successes, Failures and Suggested Future Directions for Ecosystem Restoration of the Middle Sacramento River, CA

Golet G.H., D.L. Brown, M. Carlson, T. Gardali, A. Henderson, K.D. Holl, C.A. Howell, M. Holyoak, J. Hunt, G.M. Kondolf, E.W. Larsen, R.A. Luster, C. McClain, C. Nelson, S. Paine, W. Rainey, Z. Rubin, F. Shilling, J.G. Silveira, H. Swagerty, N.M. Williams, D.M. Wood

Large-scale ecosystem restoration projects seldom undergo comprehensive evaluation to determine project effectiveness. Consequently, there are missed opportunities for learning and strategy…

2013 | Terrestrial | Planning | Science | Publications & Reports

50-Year Climate Scenarios and Plant Species Distribution Forecasts for Setting Conservation Priorities in Southwestern California

Principe, Z., J.B. MacKenzie, B. Cohen, J.M. Randall, W. Tippets, T. Smith, S.A. Morrison

Coastal southern California has long been the focus of regional conservation planning efforts. Decades ago – and prior to today’s heightened awareness of the magnitude of the likely…

2013 | Terrestrial | Planning | Data

Western San Joaquin Valley Least Conflict Solar Energy Assessment data

Butterfield, H.S., D. Cameron, E. Brand, M. Webb, E. Forsburg, M. Kramer, E. O’Donoghue, L. Crane

The Western San Joaquin Valley Least Conflict Solar Energy Assessment characterizes the land use constraints and opportunities associated with siting solar energy facilities in the Western San Joaquin…

2013 | Terrestrial | Planning | Publications & Reports

Western San Joaquin Valley Least Conflict Solar Energy Assessment

Butterfield, H.S., D. Cameron, E. Brand, M. Webb, E. Forsburg, M. Kramer, E. O’Donoghue, L. Crane

A Conservancy analysis of the western Mojave Desert identified where human activities had degraded the conservation value of lands making them potentially low impact locations for development of solar…

2013 | Terrestrial | Planning | Maps & Webmaps

Southwestern California Climate Report webmap

Brian Cohen

The Southwestern California Climate Report provides 50-year climate scenarios and plant species distribution forecasts to help inform conservation priorities in southwestern California. Spatial data…

2013 | Terrestrial | Planning | Publications & Reports

Laying the Foundation: How Existing Conservation Areas Have Helped Prepare California for Climate Change

Klausmeyer, K, D. Cameron, S. Morrison

This study evaluated the existing network of conservation lands in California to determine the extent to which it includes landscape features that may be especially important for biodiversity…

2013 | Freshwater | Planning | Science | Publications & Reports

Below the Surface: California’s Freshwater Diversity

Jeanette Howard, Kirk Klausmeyer, Kurt Fesenmyer

Californians face profound decisions regarding the management of their state’s increasingly limited water supply. Critical for decision-making is information about the plants and animals that…

2013 | Terrestrial | Planning | Maps & Webmaps

Western San Joaquin Valley Least Conflict Solar Energy Assessment webmap

Megan Webb, Scott Butterfield

This webmap is a product of The Nature Conservancy’s 2013 Western San Joaquin Valley (WSJV) Least Conflict Solar Energy Assessment which characterizes the land use and conservation constraints…

2013 | Marine | Planning | Publications & Reports

The role of science in supporting marine protected area network planning and design in California

Emily Saarman, Mary Gleason, John Ugoretz, Satie Airamé, Mark Carr, Evan Fox, Adam Frimodig, Tom Mason, Jason Vasques

This paper explores four key conditions that supported the successful integration of science into the Marine Protected Area network planning effort in California. The redesigned statewide network of…

2013 | Marine | Planning | Publications & Reports

Designing a network of marine protected areas in California: Achievements, costs, lessons learned, and challenges ahead

Mary Gleason, Evan Fox, Susan Ashcraft, Jason Vasques, Elizabeth Whiteman, Paulo Serpa, Emily Saarman, Meg Caldwell, Adam Frimodig, Melissa Miller-Henson, John Kirlin, Becky Ota, Elizabeth Pope, Mike Weber, Ken Wiseman

This paper reviews the design of a network of marine protected areas (MPAs) in state waters as mandated by the Marine Life Protection Act (MLPA). A public–private partnership (the MLPA…

2013 | Marine | Planning | Publications & Reports

Enabling conditions to support marine protected area network planning: California’s Marine Life Protection Act Initiative as a case study

Evan Fox, Melissa Miller-Henson, John Ugoretz, Mike Weber, Mary Gleason, John Kirlin, Meg Caldwell, Sonke Mastrup

In California, after two unsuccessful attempts, statewide planning of a network of marine protected areas (MPA) was achieved through the California Marine Life Protection Act (MLPA) Initiative. This…