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: 3792
Coupling demography, physiology and evolution in chaparral shrubs, Coupling demography, physiology and evolution in chaparral shrubs,
Historically, since fire is a recurrent catastrophic disturbance, mediterranean-climate shrubs have been classified by their mode of postfire regeneration, i.e., obligate seeders, facultative seeders or obligate resprouters. While these terms are useful, they are too restrictive in that they only refer to a species’ response to fire and do not adequately describe modes of reproduction...
Authors
Jon E. Keeley
Evolution of life histories in Pinus Evolution of life histories in Pinus
No abstract available at this time
Authors
Jon E. Keeley, P.H. Zedler
Density-dependent effects on growth, body size, and clutch size in Black Brant Density-dependent effects on growth, body size, and clutch size in Black Brant
We documented gosling size in late summer, adult body size, and clutch size of known-age Black Brant (Branta bernicla nigricans) females nesting on the Tutakoke River colony between 1986 and 1995. During this period, the colony increased from 1,100 to >5,000 nesting pairs. Gosling mass at 30 days of age declined from 764 ± SE of 13 g and 723 ± 15 g for males and females, respectively, in...
Authors
James S. Sedinger, Mark S. Lindberg, Brian T. Person, Michael W. Eichholz, Mark P. Herzog, Paul L. Flint
Translocated sea otter populations off the coasts of Oregon and Washington Translocated sea otter populations off the coasts of Oregon and Washington
The historical distribution of sea otters extended from the northern islands of Japan north and east across the Aleutian chain to the mainland of North America then south along the west coast to central Baja California, Mexico (Riedman and Estes 1990). By the beginning of the twentieth century, after 150 years of being intensively hunted for their valuable fur, sea otters had been...
Authors
Ronald J. Jameson
Scientific foundation for the natural community conservation planning / coastal sage scrub program Scientific foundation for the natural community conservation planning / coastal sage scrub program
No abstract available at this time
Authors
P.A. Stine
Saltcedar invasion in desert wetlands of the southwestern United States: ecological and political implications Saltcedar invasion in desert wetlands of the southwestern United States: ecological and political implications
No abstract available at this time
Authors
J.E. Lovich, R. G. de Gouvenain
Postfire ecosystem recovery and management: The October 1993 large fire episode in California, Postfire ecosystem recovery and management: The October 1993 large fire episode in California,
No abstract available at this time
Authors
Jon E. Keeley
Concerns about rehabilitation of oiled wildlife Concerns about rehabilitation of oiled wildlife
No abstract available.
Authors
J. A. Estes
Mechanism of smoke-induced seed germination in a post-fire chaparral annual Mechanism of smoke-induced seed germination in a post-fire chaparral annual
1 Smoke-stimulated germination in the post-fire flora of California chaparral does not appear to be triggered by nitrate. Application of freshly prepared unbuffered KNO3 solutions (pH c. 6.2) failed to enhance germination of five populations of Emmenanthe penduliflora or one Phacelia grandiflora population, regardless of light or stratification conditions. 2 KNO3 buffered at acidic pH...
Authors
Jon E. Keeley, C. J. Fotheringham
Heat content variation of Sierra Nevada conifers Heat content variation of Sierra Nevada conifers
A study of fuels of Siena Nevada conifer species showed that percent ash content, heat content with ash, and heat content without ash of needle and duff fuels significantly varied by species, fuel component, and developmental stage of the overstory. Ash and heat contents of woody fuels varied by species and fuel component but not by developmental stage. Bark fuels significantly differed...
Authors
J. W. van Wagdendonk, W.M. Sydoriak, J.M. Benedict
Nongame and upland gamebird surveys on Sacramento Valley National Wildlife Refuges, 1986-1993 Nongame and upland gamebird surveys on Sacramento Valley National Wildlife Refuges, 1986-1993
No abstract available.
Authors
D.S. Gilmer, K.A. Gonzalez, Mike A. Wolder, N.R. Graves