Jon Keeley
Biography
Dr. Keeley is currently a research scientist with the U.S. Geological Survey, stationed at Sequoia National Park. Prior to this appointment, he served one year in Washington, D.C. as director of the ecology program for the National Science Foundation. He was professor of biology at Occidental College for 20 years and spent a sabbatical year at the University of Cape Town, South Africa. He has more than 350 publications in national and international scientific journals and books. His research has focused on ecological impacts of wildfires as well as other aspects of plant ecology, including rare plants, rare habitats such as vernal pools, and plant physiology. In 1985 he was awarded a Guggenheim Fellowship and is a Fellow of the Ecological Society of America and an Honorary Lifetime Member of the California Botanical Society. He has served on the Los Angeles County Department of Regional Planning Environmental Review Board, and the State of California Natural Communities Conservation Program (NCCP) Board of Scientific Advisors.
EDUCATION
- Ph.D. (Botany) University of Georgia, Athens, 1977
- M.S. (Biology) San Diego State University, 1973
- B.S. (Biology) San Diego State University, 1971
RESEARCH INTERESTS
- Adaptation
- Biodiversity
- Biogeography
- Chaparral Ecology
- Coastal Sage Ecology
- Community ecology
- Conservation biology
- Ecotone
- Endangered habitat
- Environmental impacts
- Evolution
- Extinction
- Fire ecology
- Forest ecology
- Global change biology
- Grassland Ecology
- Historical Reconstruction
- Invasive species ecology
- Landscape ecology
- Landscape patterns
- Natural history
- Phylogeny
- Physiological plant ecology
- Plant ecology
- Plant taxonomy
- Population biology
- Restoration ecology
- Species identification
- Species interactions
- Species introduction
- Species inventory
- Species/Population management
- Systematics
- Vegetation classification
- Vernal Pool Conservation
- Vernal Pool Ecology
PROFESSIONAL EXPERIENCE
- U.S. Geological Survey, Western Ecological Research Center, Research Scientist
- (ST Scientist), 2015–present
- (GS series 0408), 1998–present
- University of California, Los Angeles, Adjunct Full Professor, 2001-present
- Rancho Santa Ana Botanic Garden, Research Associate, 1997–present
- National Science Foundation, Program Director 1997–1998
- Occidental College,
- Professor 1988–1998
- Department Chair 1982–1988
- Assist/Assoc Professor 1977–1988
- University of Cape Town, Visiting Professor 1990
AWARDS
- Fellow, Ecological Society of America, 2014
- Distinguished MEDECOS Fellow, 2011
- USGS Performance Award, 2011
- USGS Star Award, 2008
- Honorary Lifetime Member, California Botanical Society, 1998
- Fellow, Southern California Academy of Sciences, l994
- Guggenheim Fellow, l985–l986
- Sterling Award for Outstanding Teaching, l985
Science and Products
WERC Fire Science
WERC scientists are defining the past, present, and future of wildfires for wildlife and human communities. Explore this webpage to learn about specific, ongoing projects across California and parts of Nevada.
Southern California Wildfire Risk Scenario Project
Every year, wildfires devastate the landscapes of Southern California from Los Angeles to San Diego. How has a higher number of human-caused fires affected fire hazards and threats to resources? WERC’s Dr. Jon Keeley and collaborators are analyzing fire patterns across the state to help cities balance their management of fire hazards and natural resources.
Environmental Change and Fire
The effects of a changing environment can ripple throughout an ecosystem. Increased temperatures and more frequent and severe droughts in the future may influence wildfire patterns as well as water resources for communities. Dr. Jon Keeley and partners are using nearly a century’s worth of fire data to aid local landowners, and state and Federal agencies in planning for wildfire on evolving...
Balancing Fire Hazards and Resource Protection
Human impacts on fires across California have been quite diverse. In many forests, fires have been nearly excluded over the past century, causing an unhealthy accumulation of dead vegetation and a greater threat of severe fires. However, on much of California’s lower elevation foothills and valleys, humans have greatly increased fire frequency. These landscapes are often juxtaposed with...
Sequoia and Kings Canyon Field Station
The Sequoia and Kings Canyon Field Station is home to research programs that focus on wildfire patterns in Southern California, and the effects of drought on Sierra Nevada forests. Select the "Science" tab for a more comprehensive summary.
Drivers of chaparral type conversion to herbaceous vegetation in coastal Southern California
AimIn Southern California, native woody shrublands known as chaparral support exceptional biodiversity. However, large‐scale conversion of chaparral into largely exotic herbaceous cover is a major ecological threat and serious conservation concern. Due to substantial uncertainty regarding the causes and extent of this vegetation change, we aimed...
Syphard, Alexandra D.; Brennan, Teresa J.; Keeley, Jon E. Native peoples’ relationship to the California chaparral
Ethnographic interviews and historical literature reviews provide evidence that for many tribes of California, chaparral plant communities were a rich source of food, medicines, and technologies and that they supplemented natural fires with deliberate burning of chaparral to maximize its ability to produce useful products. Many of the most...
Underwood, Emma C.; Safford, Hugh D.; Molinari, Nicole A.; Keeley, Jon E.; Anderson, M. Kat; Keeley, Jon E. Human presence diminishes the importance of climate in driving fire activity across the United States
Growing human and ecological costs due to increasing wildfire are an urgent concern in policy and management, particularly given projections of worsening fire conditions under climate change. Thus, understanding the relationship between climatic variation and fire activity is a critically important scientific question. Different factors limit fire...
Syphard, Alexandra D.; Keeley, Jon E.; Pfaff, Anne Hopkins; Ferschweiler, Ken Characters in Arctostaphylos taxonomy
There is value in understanding the past and how it has affected the present. Science focuses on empirical findings, and we know that our prior experiences and those of our predecessors play important roles in determining how we interpret the present. We learn from accomplishments and foibles of predecessors and appreciate the real life...
Keeley, Jon E.; Parker, V. Thomas; Vasey, Michael C. Why were California's wine country fires so destructive?
As of late October more than a dozen wildfires north of San Francisco had killed more than 40 people, burned approximately 160,000 acres and destroyed more than 7,000 structures.This tragic loss of life and property is unprecedented in California. However, the fires are not anomalous events in terms of their size, intensity or the speed with which...
Keeley, Jon E. Epicormic resprouting in fire-prone ecosystems
Many plants resprout from basal buds after disturbance, and this is common in shrublands subjected to high-intensity fires. However, resprouting after fire from epicormic (stem) buds is globally far less common. Unlike basal resprouting, post-fire epicormic resprouting is a key plant adaptation for retention of the arborescent skeleton after fire...
Pausas, Juli G.; Keeley, Jon E. Trends and drivers of fire activity vary across California aridland ecosystems
Fire activity has increased in western US aridland ecosystems due to increased human-caused ignitions and the expansion of flammable exotic grasses. Because many desert plants are not adapted to fire, increased fire activity may have long-lasting ecological impacts on native vegetation and the wildlife that depend on it. Given the heterogeneity...
Syphard, Alexandra D.; Keeley, Jon E.; Abatzoglou, John T. Different historical fire–climate patterns in California
The relationship between annual variation in area burned and seasonal temperatures and precipitation was investigated for the major climate divisions in California. Historical analyses showed marked differences in fires on montane and foothill landscapes. Based on roughly a century of data, there are five important lessons on fire–climate...
Keeley, Jon E.; Syphard, Alexandra D. Flammability as an ecological and evolutionary driver
We live on a flammable planet yet there is little consensus on the origin and evolution of flammability in our flora.We argue that part of the problem lies in the concept of flammability, which should not be viewed as a single quantitative trait or metric. Rather, we propose that flammability has three major dimensions that are not necessarily...
Pausas, Juli G.; Keeley, Jon E.; Schwilk, Dylan W. The importance of building construction materials relative to other factors affecting structure survival during wildfire
Structure loss to wildfire is a serious problem in wildland-urban interface areas across the world. Laboratory experiments suggest that fire-resistant building construction and design could be important for reducing structure destruction, but these need to be evaluated under real wildfire conditions, especially relative to other factors. Using...
Syphard, Alexandra D.; Brennan, Teresa J.; Keeley, Jon E. Impacts of mastication fuel treatments on California, USA, chaparral vegetation structure and composition
Mechanical fuel treatments are a primary pre-fire strategy for potentially mitigating the threat of wildland fire, yet there is limited information on how they impact shrubland ecosystems. Our goal was to assess the impact of mechanical mastication fuel treatments on chaparral vegetation and to determine the extent to which they emulate early post...
Brennan, Teresa J.; Keeley, Jon E. Can private land conservation reduce wildfire risk to homes? A case study in San Diego County, California, USA
The purchase of private land for conservation purposes is a common way to prevent the exploitation of sensitive ecological areas. However, private land conservation can also provide other benefits, one of these being natural hazard reduction. Here, we investigated the impacts of private land conservation on fire risk to homes in San Diego County,...
Butsic, Van; Syphard, Alexandra D.; Keeley, Jon E.; Bar-Massada, AviLiving with Fire: The USGS Southern California Wildfire Risk Project
Southern California's fire ecology is unlike that of anywhere else in the United States. Fire control strategies developed for mountain forests don't have the same results here. So can science help uncover new answers to help Southern California communities manage and live with wildfires? This 11 minute film showcases ongoing USGS research supporting agencies on the
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USGS Film: Living with Fire
A screenshot from the USGS film "Living with Fire".
"Living with Fire" is a 11-minute USGS production exploring ongoing USGS research on wildfire science in southern California -- where the fire ecology is unlike any other region in the United States.
USGS is investigating ways to balance community fire risk management and native habitat conservation as part
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