Jon Keeley
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.
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
Education and Certifications
Ph.D. (Botany) University of Georgia, Athens, 1977
M.S. (Biology) San Diego State University, 1973
B.S. (Biology) San Diego State University, 1971
Honors and 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
Impact of antecedent climate on fire regimes in coastal California
Ecological impacts of wheat seeding after a Sierra Nevada wildfire
Testing a basic assumption of shrubland fire management: h=How important is fuel age?
Effects of invasive alien plants on fire regimes
Fire regimes and vegetation responses in two Mediterranean-climate regions
The role of fire and fire management in the invasion of nonnative plants
American Indian influence on fire regimes in Calfornia's coastal ranges
The role of fire and fire management in the invasion of nonnative plants in California
The fire and fire surrogate study in the Sierra Nevada: Evaluating restoration treatments at Blodgett Experimental Forest and Sequoia National Park,
Effects of an introduced pathogen and fire exclusion on the demography of sugar pine
Lessons learned from the wildfires
La prevention des risques et la lutte contre les incendies dans un paysage fortement marque par la presence humaine: les incendies de chaparral californien
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Impact of antecedent climate on fire regimes in coastal California
Severe fire weather is a major determinant of fire size in coastal California; however, it is unclear to what extent antecedent climate also controls fire activity. This study investigates the relationship between fire activity and climate in central coastal and southern California. Climate variables included the Palmer Drought Severity Index (PDSI), total monthly precipitation, mean monthly maximAuthorsJ. E. KeeleyEcological impacts of wheat seeding after a Sierra Nevada wildfire
The Highway Fire burned 1680 ha of mixed ponderosa pine–oak–chaparral in the newly created Giant Sequoia National Monument and the adjacent Sequoia National Forest of Fresno County, California in August 2001. The USDA Forest Service Burned Area Emergency Rehabilitation (BAER) program recommended that portions of the burned forest be seeded with a non-persistent variety of wheat at a density of 157AuthorsJon E. KeeleyTesting a basic assumption of shrubland fire management: h=How important is fuel age?
This year's catastrophic wildfires in southern California highlight the need for effective planning and management for fire-prone landscapes. Fire frequency analysis of several hundred wildfires over a broad expanse of California shrublands reveals that there is generally not, as is commonly assumed, a strong relationship between fuel age and fire probabilities. Instead, the hazard of burning in mAuthorsMax A. Moritz, Jon E. Keeley, Edward A. Johnson, Andrew A. SchaffnerEffects of invasive alien plants on fire regimes
Plant invasions are widely recognized as significant threats to biodiversity conservation worldwide. One way invasions can affect native ecosystems is by changing fuel properties, which can in turn affect fire behavior and, ultimately, alter fire regime characteristics such as frequency, intensity, extent, type, and seasonality of fire. If the regime changes subsequently promote the dominance of tAuthorsM.L. Brooks, C. M. D'Antonio, D.M. Richardson, J.M. DiTomaso, J.B. Grace, R.J. Hobbs, J. E. Keeley, M. Pellant, D. PykeFire regimes and vegetation responses in two Mediterranean-climate regions
Brain cholinesterase activities were determined in birds from forests sprayed with Dylox2 at 1.13 kg/hectare (1 lb/acre ? active ingredient [a.i.]) or Sevin-4-oil2 at 1.13 kg/hectare (1 lb/acre ? a.i.) for up to 5 days postspray. Of ten bird species evaluated from the Dylox spray area, four species represented by six individuals had values which were depressed more than 2 standard deviations belowAuthorsGloria Montenegro, Rosanna Ginocchio, Alejandro Segura, Jon E. Keeley, Miguel GomezThe role of fire and fire management in the invasion of nonnative plants
Spacecraft imagery, especially from the National Atmospheric and Oceanic Administration's Improved TIROS (Television Infra-Red Observational Satellite) Operational Satellites, permits timely evaluations of snow and ice conditions encountered by arctic nesting geese. Imagery from the TIROS satellite for 5 wide]y scattered locations in arctic North America was obtained for three 3-day intervals inAuthorsKyle E. Merriam, Thomas W. McGinnis, Jon E. KeeleyAmerican Indian influence on fire regimes in Calfornia's coastal ranges
Understanding the historical pattern of human impacts on landscapes is critical to correctly interpreting the ecological basis for vegetation distribution. In some parts of the world, such as the Mediterranean Basin, a long and intensive utilization of resources has greatly altered the distribution of forests and woodlands. Was vegetation distribution in the coastal ranges of California similarlyAuthorsJon E. KeeleyThe role of fire and fire management in the invasion of nonnative plants in California
Researchers with the U.S. Geological Survey seek to understand how fire and fire management strategies may be aiding the invasion of nonnative plants.AuthorsK. E. Merriam, T.W. McGinnis, J. E. KeeleyThe fire and fire surrogate study in the Sierra Nevada: Evaluating restoration treatments at Blodgett Experimental Forest and Sequoia National Park,
No abstract available at this timeAuthorsE. E. Knapp, S.L. Stephens, J.D. Mciver, J.J. Moghaddas, J. E. KeeleyEffects of an introduced pathogen and fire exclusion on the demography of sugar pine
An introduced pathogen, white pine blister rust (Cronartium ribicola), has caused declines in five-needled pines throughout North America. Simultaneously, fire exclusion has resulted in dense stands in many forest types, which may create additional stress for these generally shade-intolerant pines. Fire exclusion also allows fuels to accumulate, and it is unclear how affected populations will respAuthorsPhillip J. van Mantgem, Nathan L. Stephenson, MaryBeth Keifer, Jon E. KeeleyLessons learned from the wildfires
No abstract available at this timeAuthorsJ. E. Keeley, C. J. FotheringhamLa prevention des risques et la lutte contre les incendies dans un paysage fortement marque par la presence humaine: les incendies de chaparral californien
No abstract available at this timeAuthorsJ. E. Keeley, C. J. Fotheringham - Software
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