Letitia Grenier's picture

J. Letitia Grenier, PhD

Program Director
Senior Scientist
Resilient Landscapes Program
510-746-7342

Letitia Grenier co-directs SFEI's Resilient Landscapes Program. She is the science lead for the 2015 State of the Estuary Report (a SF Estuary Partnership project) and the 2015 update to the Baylands Ecosystem Habitat Goals (a California Coastal Conservancy project), heading a team of over 200 environmental scientists, managers, and regulators to develop science­ based recommendations for restoring and maintaining the health the Bay's tidal wetlands in the face of rising sea levels and other stressors. Letitia holds a PhD in Conservation Biology from the University of California at Berkeley and has previously worked on investigating bioaccumulation of contaminants in estuarine food webs, the condition of California’s wetlands, and other ecological questions about the Bay and Delta. Her focus now is to work with partners to conserve California's living resources by developing landscape-­scale, collaborative, science ­based visions and solutions.

Related Projects, News, and Events

Delta Landscapes Project (Project)

The Delta Landscapes Project, which began in 2012 and will run through 2016, has developed a body of work to inform landscape-scale restoration of the Sacramento-San Joaquin Delta ecosystem.

Resilient Silicon Valley (Project)

Drawing on resilience science, regional data, and local expertise, we will develop the vision and tools that will allow stakeholders in the region ensure that local actions contribute toward the creation of a high-functioning and resilient Silicon Valley ecosystem.

Resilient By Design: Science Advisors (Project)

The challenges of accelerating sea level rise and aging shoreline infrastructure are creating a once-in-a-century opportunity to redesign the Bay shore. Originally constructed with little regard for the Bay, the future shoreline can more successfully integrate the natural and built environments to make a healthier shore for both the Bay and local communities. New shoreline design approaches must incorporate the complex ecological and physical processes of our urbanized estuary while anticipating the future challenges of climate change and extreme weather.

Petaluma Valley Historical Hydrology and Ecology Study (Project)

This project reconstructs the historical hydrology and ecology of the Petaluma River watershed prior to major Euro-American modification. It demonstrates the efficacy of historical hydrology and ecology in identifying and prioritizing multi-benefit restoration opportunities.

SFEI and Google share Award for Re-Oaking (News)

SFEI and Google have won the Arnold Soforenko Award from the non-profit Canopy for significant contributions to the urban forest. The award is for our work on Re-Oaking Silicon Valley: Building Vibrant Cities with Nature.

The award ceremony was held at Palo Alto City Hall on January 25, 2018.

Russian River Watershed Projects at the San Francisco Estuary Institute (Project)

Our projects in the Russian River Watershed help us to understand our past, understand our present, and envision our future. Learn more about what SFEI is doing in partnership with others to advance our scientific understanding of this valuable landscape.

Photo credit: Kingmond Young

Flood Control 2.0 Wins an Outstanding Environmental Project Award! (News)

The Flood Control 2.0 project team was presented with an Outstanding Environmental Project Award at the 13th Biennial State of the Estuary Conference in Oakland, CA. The award is given by the Friends of the San Francisco Estuary to projects that benefit the San Francisco-Bay Delta Estuary and its watersheds.

Understanding Change in Primary Production at a Landscape Scale in the Delta (Project)

Constraints on primary production and the relative importance of different production sources to the food web remain major uncertainties in the Delta ecosystem. Newly available spatial data developed as part of the Delta Historical Ecology and Delta Landscapes projects make it possible to explore the effects of landscape configuration and hydrodynamics on primary production in a way that was not previously possible. Proposed order-of-magnitude calculations estimating primary production can ‘bookend’ the potential magnitude of production in the Delta, and inform what is possible in terms of restoration and management options.

Science Support for Resilient By Design Competition (News)

The challenges of accelerating sea level rise and aging shoreline infrastructure are creating a once-in-a-century opportunity to redesign the Bay shore. Originally constructed with little regard for the Bay, the future shoreline can more successfully integrate the natural and built environments to make a healthier shore for both the Bay and local communities. New shoreline design approaches must incorporate the complex ecological and physical processes of our urbanized estuary while anticipating the future challenges of climate change and extreme weather.

Photo by Shira Bezalel

Re-Oaking (Project)

“Re-Oaking” is an approach to reintegrating oaks and other native trees within the developed California landscape to provide a range of ecosystem services. The concept has emerged from SFEI's research into the distribution and characteristics of California's former valley oak savannas -- a distinctive, widespread habitat that was mostly lost a century ago. Now valley oaks and other native trees are being recognized for the benefits they did -- and could again – provide, as communities design the ecologically healthy and resilient landscapes of the future.

Announcing the release of Re-Oaking Silicon Valley: Building Vibrant Cities with Nature (News)

Could restoring lost ecosystems to cities play a role in building ecological resilience across landscapes? In Re-oaking Silicon Valley, a new report by SFEI, we explore this opportunity in our region. Both beautiful and functional, native oaks can be excellent choices for streetscapes, backyards, and landscaping. Requiring little water after establishment, oaks can save money by reducing irrigation requirements while sequestering more carbon than most other urban trees common to our region.

Photo Credits: Micha Salomon (L), Dee Shea Himes (R)

Healthy Watersheds Resilient Baylands (Project)

The Healthy Watersheds Resilient Baylands project will enhance resilience to climate change through the implementation of several multi-benefit environmental projects by the San Francisco Estuary Partnership, SFEI, and 15 other organizations. The project has two major components: Multi-benefit Urban Greening and Tidal Wetlands Restoration. Through both components, we are developing science-based strategies that inform the design of innovative implementation projects.

Resilience Atlas (News)

The Resilience Atlas is an interactive mapping platform that visualizes the past, present and future conditions of the Bay’s edge and surrounding watersheds by combining layers of information, such as shoreline infrastructure, shoreline change over time, and sea level rise. 

Baylands Ecosystem Habitat Goals Project (Project)

SFEI's Letitia Grenier served as lead scientist of the Baylands Ecosystem Habitat Goals Project, which yielded a report called The Baylands and Climate Change: What We Can Do. The report is an update to the 1999 Baylands Ecosystem Habitat Goals, which for the first time set comprehensive restoration goals for the San Francisco Bay estuary. Produced by a collaborative of 21 management agencies working with a multi-disciplinary team of over 100 scientists, it synthesizes the latest science—particularly advances in the understanding of climate change and sediment supply—and incorporates projected changes through 2100 to generate new recommendations for achieving and sustaining healthy baylands ecosystems.

Flood Control 2.0 Completed! (News)

SFEI and several agency partners recently completed a multi-year, EPA funded project called Flood Control 2.0. The goal of the project was to develop information that is useful for integrating habitat restoration into flood management at the Bay edge. Project outputs are now available at floodcontrol.sfei.org.

A multi-partner project to create placed-based sea-level rise adaptation strategies (News)

As sea level rise accelerates in the San Francisco Bay, scientists, planners, and decision makers will need to re-envision and adapt our complex shoreline to provide ecological and social resilience. Although there are many efforts currently underway in the region to assess climate change vulnerabilities, the region lacks a coherent science-based framework for guiding and evaluating climate adaptation strategies appropriate to our diverse shoreline settings.

Lower Walnut Creek Vision Just Released! (News)

SFEI recently released a resilient landscape vision for lower Walnut Creek that incorporates habitat restoration actions into flood risk management. The vision, developed in coordination with a team of regional science experts, highlights opportunities for restoring and sustaining vital tidal wetland habitats around lower Walnut Creek while supporting a high level of flood protection under rising San Francisco Bay water levels.

SFEI work on Landscape Resilience and Urban Biodiversity featured in Google Blog and Fast Company Story (News)

Our partnership with Google to enhance the ecological resilience of urban landscapes is featured in a story by Fast Company, a Google Blog post, and an accompanying video.

"A Delta Renewed" report released at the 2016 Bay-Delta Science Conference (News)

The San Francisco Estuary Institute (SFEI) released A Delta Renewed – A Guide to Science-Based Ecological Restoration in the Sacramento-San Joaquin Delta.

South Baylands Mercury Project (SBMP) (Project)

We have developed biosentinel species indicators for wetlands to help the SBMP management team make decisions relative to mercury risk about where and how to restore salt ponds to wetlands. 2008 was the third and last year of a project to characterize and monitor bio-available mercury and its uptake into local food webs of the South Bay managed ponds and intertidal habitats, focusing initially on Pond A8 and Alviso Slough. Results indicated that this approach can be used to guide management decisions about wetlands restoration locations.