In California, a day’s drive can take a visitor from record-setting desert heat to glaciated peaks to temperate rainforests with the world’s tallest trees. This astounding climatic and landscape diversity has helped create a biodiversity hotspot. California is also an economic hotspot – the 6th largest economy in the world – and is home to nearly 40 million people. The demand for land for new development and farms, along with accelerating climate change, puts tremendous stress on ecosystems, and the benefits they provide.

The state’s legacy of conservation has created a network of natural and working lands that benefit people by supplying clean water, capturing carbon, and directly contributing to the state’s economic and cultural vitality through recreation, tourism, and agricultural production. Conservancy scientists work across the spectrum of ecosystem types and human land uses, to advance conservation goals that also contribute to the well-being of people in those places.

Wildlands

Nearly half of California is protected in some land status that prevents most kinds of intensive…>>

Harvested Landscapes

A third of California is privately-owned forestland, woodland or grassland. From redwood forests on…>>

Cultivated Landscapes

California is the leading agricultural state in the country and it’s agriculture generates…>>

Urban Areas and Infrastructure

With California’s population on track to reach 50 million people, the demand for energy,…>>

Science in Action

Terrestrial | Planning | Technology

Wildfire and Communities

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

Terrestrial | Marine | Science

TNC and FEMA

How do we increase climate resilience in ways that work for people and nature?

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 | Terrestrial | Technology | Science | Publications & Reports

Integrating technologies for scalable ecology and conservation

David C. Marvin, Lian Pin Koh, Antony J. Lynam, Serge Wich, Andrew B. Davies, Ramesh Krishnamurthy, Emma Stokes, Ruth Starkey, Gregory P. Asner

Integration of multiple technologies greatly increases the spatial and temporal scales over which ecological patterns and processes can be studied, and threats to protected ecosystems can be…

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

Spatially explicit analysis of field inventories for national forest carbon monitoring

David C. Marvin, Gregory P. Asner

Policies that incentivize forest conservation by monetizing forest carbon ultimately depend on the accuracy of carbon stock estimates. Often, these estimates are based on field inventory sampling. In…

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 | Terrestrial | Planning | Publications & Reports

Pajaro Compass

A Network for Voluntary Conservation

The Pajaro Compass—with its interactive maps and tools—supports a group of over 50 stakeholders representing conservation, agriculture, transportation, government and community…

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

Contemporary Drought and Future Effects of Climate Change on the Endangered Blunt-Nosed Leopard Lizard, Gambelia sila

Michael F. Westphal, Joseph A. E. Stewart, Erin N. Tennant, H. Scott Butterfield, Barry Sinervo

This paper documents the negative effects of the 2012-2014 drought—the most severe multi-year drought in southwestern North America in the past 1,200 years—on the endangered blunt-nosed…

2016 | Terrestrial | Science | Publications & Reports

Adaptive divergence despite strong genetic drift: genomic analysis of the evolutionary mechanisms causing genetic differentiation in the island fox

Funk, W.C., R.E. Lovich, P.A. Hohenlohe, C.A. Hofman, S.A. Morrison, T.S. Sillett, C.K. Ghalambor, J.E. Maldonado, T.C. Rick, M.D. Day, T.J. Coonan, K.R. Crooks, A. Dillon, D.K. Garcelon, J.L. King, L.M. Lyren, E.E. Boydston, N. Gould , W.F. Andelt

The genomics revolution provides powerful tools for understanding evolution and advancing conservation. This study applies genomics techniques to examine the evolutionary mechanisms underpinning…

2016 | Terrestrial | Science | Publications & Reports

Context‐dependent seed dispersal by a scatter‐hoarding corvid

M.B. Pesendorfer, T.S. Sillett, S.A. Morrison, A.C. Kamil

Foraging behavior may be influenced by a variety of factors, including food abundance and competitor density. This study examines how such factors affect the seed caching behavior of the Island…

2016 | Terrestrial | Science | Publications & Reports

Oren Pollak Memorial Research Fund - 2016 Annual Report

Brynn Pewtherer

The Oren Pollak Memorial Research Fund provides student researchers with the funds necessary to pursue their studies and complete important research in grassland science. The Fund was…

2016 | Terrestrial | Publications & Reports

Prioritizing Riparian Conservation: A Methodology Developed for the Santa Clara River, California

Sophie S. Parker, Lily N. Verdone, E.J. Remson, Brian S. Cohen

This study addresses a basic problem shared by many riparian conservation projects: parcelization. Having dozens or hundreds of owners along a river can make conserving riparian ecosystems a difficult…

2016 | Freshwater | Terrestrial | Marine | Planning | Publications & Reports

Designing virtuous socio-ecological cycles for biodiversity conservation

Scott A. Morrison

Conservationists should assume that people don’t care about biodiversity. By doing so, they would be especially motivated to figure out what people do care about, and how conservation might be…

2016 | Terrestrial | Science | Publications & Reports

Scatter-hoarding corvids as seed dispersers for oaks and pines: a review of a widely distributed mutualism and its utility to habitat restoration

M.B. Pesendorfer, T.S. Sillett, W.D. Koenig, S.A. Morrison

Many corvids are renowned as “ecosystem engineers” because they facilitate the long-distance seed dispersal of keystone tree species like oaks. This paper reviews research into various…

2016 | Terrestrial | Science | Publications & Reports

Phylogeographic and population genetic structure of bighorn sheep in North American deserts

Buchalski, M.R, B.N. Sacks, D.A. Gille, M.C.T. Penedo, H.B. Ernest, S.A. Morrison, W.M. Boyce

Bighorn sheep occupy a desert landscape of rugged mountains separated by expansive and very arid valleys. Highways and other development in those valleys fragment habitat and isolate populations from…