Publications
Below is a list of WERC's peer-reviewed publications. If you are searching for a specific publication and cannot find it in this list, please contact werc_web@usgs.gov
Filter Total Items: 3710
Effects of hydropower operations on spawning habitat, rearing habitat, and stranding/entrapment mortality of Fall Chinook Salmon in the Hanford Reach of the Columbia River Effects of hydropower operations on spawning habitat, rearing habitat, and stranding/entrapment mortality of Fall Chinook Salmon in the Hanford Reach of the Columbia River
No abstract available.
Authors
Donald R. Anglin, Steven L. Haeseker, Joseph J. Skalicky, Howard Schaller, Kenneth F. Tiffan, James R. Hatten, Paul Hoffarth, John Nugent, David Benner, Marv Yoshinaka
Heterogeneity in fire severity within early season and late season prescribed burns in a mixed-conifer forest Heterogeneity in fire severity within early season and late season prescribed burns in a mixed-conifer forest
Structural heterogeneity in forests of the Sierra Nevada was historically produced through variation in fire regimes and local environmental factors. The amount of heterogeneity that prescription burning can achieve might now be more limited owing to high fuel loads and increased fuel continuity. Topography, woody fuel loading, and vegetative composition were quantified in plots within...
Authors
Eric E. Knapp, Jon E. Keeley
USGS science in Menlo Park -- a science strategy for the U.S. Geological Survey Menlo Park Science Center, 2005-2015 USGS science in Menlo Park -- a science strategy for the U.S. Geological Survey Menlo Park Science Center, 2005-2015
In the spring of 2004, the U.S. Geological Survey (USGS) Menlo Park Center Council commissioned an interdisciplinary working group to develop a forward-looking science strategy for the USGS Menlo Park Science Center in California (hereafter also referred to as "the Center"). The Center has been the flagship research center for the USGS in the western United States for more than 50 years...
Authors
Thomas M. Brocher, Michael D. Carr, David L. Halsing, David A. John, Victoria E. Langenheim, Margaret T. Mangan, Mark C. Marvin-DiPasquale, John Y. Takekawa, Claire R. Tiedeman
By
Natural Hazards Mission Area, Water Resources Mission Area, Ecosystems Mission Area, Volcano Hazards Program, Earthquake Hazards Program, Volcano Science Center, Earthquake Science Center, Western Ecological Research Center (WERC), Alaska Science Center, Geology, Minerals, Energy, and Geophysics Science Center
Bufo californicus mortality Bufo californicus mortality
No abstract available.
Authors
Edward L. Ervin, D.A. Kisner, Robert N. Fisher
Fire decreases arthropod abundance but increases diversity: Early and late season prescribed fire effects in a Sierra Nevada mixed-conifer forest Fire decreases arthropod abundance but increases diversity: Early and late season prescribed fire effects in a Sierra Nevada mixed-conifer forest
Prior to fire suppression in the 20th century, the mixed-conifer forests of the Sierra Nevada, California, U.S.A., historically burned in frequent fires that typically occurred during the late summer and early fall. Fire managers have been attempting to restore natural ecosystem processes through prescription burning, and have often favored burning during the fall in order to mimic...
Authors
Scott Ferrenberg, Dylan W. Schwilk, Eric E. Knapp, Eric Groth, Jon E. Keeley
Tree mortality from fire and bark beetles following early and late season prescribed fires in a Sierra Nevada mixed-conifer forest Tree mortality from fire and bark beetles following early and late season prescribed fires in a Sierra Nevada mixed-conifer forest
Over the last century, fire exclusion in the forests of the Sierra Nevada has allowed surface fuels to accumulate and has led to increased tree density. Stand composition has also been altered as shade tolerant tree species crowd out shade intolerant species. To restore forest structure and reduce the risk of large, intense fires, managers have increasingly used prescription burning...
Authors
Dylan W. Schwilk, Eric E. Knapp, Scott Ferrenberg, Jon E. Keeley, Anthony C. Caprio
A structural equation model analysis of postfire plant diversity in California shrublands A structural equation model analysis of postfire plant diversity in California shrublands
This study investigates patterns of plant diversity following wildfires in fire‐prone shrublands of California, seeks to understand those patterns in terms of both local and landscape factors, and considers the implications for fire management. Ninety study sites were established following extensive wildfires in 1993, and 1000‐m2 plots were used to sample a variety of parameters. Data on...
Authors
J.B. Grace, Jon E. Keeley
Home range characteristics of great gray owls in Yosemite National Park, California Home range characteristics of great gray owls in Yosemite National Park, California
We studied home range and habitat use of radio-tagged Great Gray Owls (Strix nebulosa) in Yosemite, California. From 1986–90 we made 5338 relocations on nine adult and three juvenile owls. Home-range size was not correlated with number of locations and was significantly different between breeding and nonbreeding periods. Breeding female summer home range averaged 61.47 ha and during the...
Authors
Charles van Riper, Jan W. van Wagtendonk
Evolution of plant adaptations Evolution of plant adaptations
No abstract available at this time
Authors
Jon E. Keeley
Food webs and parasites in a salt marsh ecosystem Food webs and parasites in a salt marsh ecosystem
No abstract available at this time
Authors
K. D. Lafferty, R. F. Hechinger, J.C. Shaw, K.L. Whitney, A. M. Kuris
Fire severity and plant age in postfire resprouting of woody plants in sage scrub and chaparral Fire severity and plant age in postfire resprouting of woody plants in sage scrub and chaparral
Postfire resprouting by woody plants confers a marked advantage in rate of recovery over species that regenerate entirely from seed. However, the predictability of this advantage varies markedly between species, with some showing nearly 100% rootcrown survival and others often much lower. This study examined patterns of fire-caused mortality and tested the relative importance of fire...
Authors
Jon E. Keeley
Wildfire management on a human dominated landscape: The story of California chaparral wildfires Wildfire management on a human dominated landscape: The story of California chaparral wildfires
No abstract available.
Authors
Jon E. Keeley, C. J. Fotheringham