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.

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 | Terrestrial | Publications & Reports

Incorporating critical elements of city distinctiveness into urban biodiversity conservation

Sophie Parker

Strategies for preserving the Earth’s biodiversity that can be employed within cities are likely to become more common as urban areas continue to increase in size and number. Progress towards…

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 | Freshwater | Marine | Science | Publications & Reports

Nursery Functions of U.S. West Coast Estuaries: The State of Knowledge for Juveniles of Focal Invertebrate and Fish Species

Brent B. Hughes, Matthew D. Levey, Jennifer A. Brown, Monique C. Fountain, Aaron B. Carlisle, Steven Y. Litvin, Correigh M. Greene, Walter N. Heady, Mary G. Gleason

Estuaries support significant biodiversity and important ecosystem functions such as providing rearing habitat for juvenile fish and invertebrates. This report synthesizes the scientific…

2014 | Terrestrial | Science | Publications & Reports

Fractured genetic connectivity threatens a southern California puma (Puma concolor) population

H.B. Ernest, T.W. Vickers, S.A. Morrison, M.R. Buchalski, W.M. Boyce

Highly fragmented landscapes can pose myriad threats to wide-ranging species like mountain lions. Coastal southern California has long been the focus of research into demographics, genetics, and…

2014 | Terrestrial | Technology | Science | Publications & Reports

A multi-scale distribution model for non-equilibrium populations suggests resource limitation in an endangered rodent

Tim Bean, Bob Stafford, Scott Butterfield, Justin Brashares

This paper presents a multi-step approach to estimate the realized and potential distribution of the endangered giant kangaroo rat. The authors estimate the potential distribution by modeling…

2014 | Freshwater | Science | Publications & Reports

Low-Cost Restoration Techniques for Rapidly Increasing Wood Cover in Coastal Coho Salmon Streams

Jennifer K. Carah, Christopher C. Blencowe, David W. Wright

Coho salmon in California are critically imperiled so there is strong impetus to achieve as much habitat restoration as possible in priority watersheds quickly and with limited resources. This paper…

2014 | Terrestrial | Science | Publications & Reports

Passive recovery of vegetation after herbivore eradication on Santa Cruz Island, California

Beltran, R.S., N. Kreidler, D.H. Van Vuren, S.A. Morrison, E.S. Zavaleta, K. Newton, B.R. Tershy, D.A. Croll

Introduced predators and herbivores can have dramatic ecological effects on island ecosystems; their eradication can produce similarly profound ecological responses. This paper analyzes data from…

2014 | Terrestrial | Maps & Webmaps

California Rangeland Conversion webmap

Dick Cameron

This webmap shows regions of California converted from rangeland land use to development, intensive agriculture, or other miscellaneous land uses between 1984 and 2008. See related publication…

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 | Science | Publications & Reports

Ecological change on California's Channel Islands from the Pleistocene to the Anthropocene

Rick, T.C, T.S. Sillett, C.K. Ghalambor, C.A. Hofman, K. Ralls, R.S. Anderson, C.L. Boser, T.J. Braje, D.R. Cayan, R.T. Chesser, P.W. Collins, J.M. Erlandson, K.R. Faulkner, R. Fleischer, W.C. Funk, R. Galipeau, A. Huston, J. King, L. Laughrin, J. Maldonado, K. McEachern, D.R. Muhs, S.D. Newsome, L. Reeder-Myers, C. Still, S.A. Morrison

Understanding the deep history of places and resources, and the interplay between natural and cultural histories, can be critical to science-based conservation management. This paper explores the case…

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 | Freshwater | Maps & Webmaps

Hope Runs Deep: Conservation Solutions for Salmon in Shasta Valley

Jeanette Howard, Megan Webb, Katie Andrews

Using maps, images, and video, this interactive StoryMap illustrates how The Nature Conservancy works with partners in Shasta Valley, California to find conservation solutions that work for…

2014 | Terrestrial | Technology | Publications & Reports

Remote Sensing and Residual Dry Matter Monitoring

H. Scott Butterfield, Miriam Tsalyuk, Carrie Schloss

The Nature Conservancy in California monitors residual dry matter (RDM) on approximately 300,000 acres of conservation lands. Researchers evaluated whether satellite remote sensing data could be used…

2014 | Terrestrial | Technology | Science | Publications & Reports

Species distribution models of an endangered rodent offer conflicting measures of habitat quality at multiple scales

Tim Bean, Laura Prugh, Bob Stafford, Scott Butterfield, Mike Westphal, Justin Brashares

In this study, the authors developed a suite of species distribution models (SDMs) for the endangered giant kangaroo rat using the machine-learning method Maxent. They compared these models with three…

2014 | Terrestrial | Science | Publications & Reports

Partitioning the sources of demographic variation reveals density‐dependent nest predation in an island bird populationv

H.R. Sofaer, T.S. Sillett, K.M. Langin, S.A. Morrison, C.K. Ghalambor

The density of birds in their breeding areas can affect reproductive success in myriad ways – and it is often difficult to distinguish which factors are more influential. For example, areas that…

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…