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: 3617
Reproductive characteristics of female sea otters
No abstract available.
Authors
R.J. Jameson, A. M. Johnson
Distribution, abundance, and age ratios of Wrangel Island lesser snow geese Anser caerulescens during autumn migration on the Yukon-Kuskokwim Delta, Alaska
We monitored the distribution, abundance, and productivity of Lesser Snow Geese on the Yukon-Kuskokwim (Y-K) Delta, Alaska during September and October 1991, when the geese were en route from their nesting grounds on Wrangel Island, Russia to wintering areas along the Pacific Coast. Adult geese in brood flocks were captured on Wrangel Island and fitted with either satellite platform transmitting t
Authors
Craig R. Ely, John Y. Takekawa, M.L. Wege
Disappearance of the cascades frog Rana cascadae at the southern end of its range, California, USA
It has recently become evident that amphibian species in many areas of the world have suffered serious declines. Healthy, seemingly well-protected populations have disappeared for no obvious reason. Data from historic accounts and museum records indicate that the Cascades frog, Rana cascadae, was once abundant at the southern end of its range in the vicinity of Lassen Volcanic National Park, Calif
Authors
Gary M. Fellers, Charles A. Drost
Remains of ducks and other prey found near fox and mink dens on an Iowa Wildlife Refuge
No abstract available.
Authors
J. P. Fleskes, E. E. Klaas
Native grassland restoration in California: Assessing suitable sites
No abstract available.
Authors
J. E. Keeley
Smoke-induced flowering in the fire-lily Cyrtanthus ventricosus
No abstract available.
Authors
J. E. Keeley
Limits in the resolution of Loran-C for aerial telemetry studies
No abstract available.
Authors
J. Jaeger, J. Wehausen, V. Bleich, C. L. Douglas
Boron, molybdenum, and selenium in aquatic food chains from the lower San Joaquin River and its tributaries, California
Boron (B), molybdenum (Mo), and selenium (Se) were measured in water, sediment, particulate organic detritus, and in various biota—filamentous algae, net plankton, macroinvertebrates, and fishes—to determine if concentrations were elevated from exposure to agricultural subsurface (tile) drainage during the spring and fall 1987, in the San Joaquin River, California. Concentrations of B and Se, but
Authors
Michael K. Saiki, Mark R. Jennings, William G. Brumbaugh
The marine snail, Cerithidea californica, matures at smaller sizes where parasitism is high
No abstract available.
Authors
K. D. Lafferty
Recruitment of seedlings and vegetative sprouts in unburned chaparral
Age structure of 12 stands of chaparral, unburned for 56—120 yr, was investigated. All shrubs produced discernible growth rings, and ring counts on stems from stands of known age, plus synchrony in annual growth ring width among species in the same stand, were taken as evidence that growth rings represented annual rings. Species that survive fire by vegetative regeneration from the root crown were
Authors
Jon E. Keeley
Associations between benthic flora and diel changes in dissolved arsenic, phosphorus, and related physico-chemical parameters
Diel relationships between physical and chemical parameters and biomass were examined along a 57-km reach of Whitewood Creek, South Dakota, between 29 August and 2 September 1988. A time lag of ∼3-6 h for fluctuations in soluble reactive phosphorus (SRP) concentrations (ranging from 0.1 to 0.5 μM at the downstream sites) relative to dissolved arsenic (ranging from 0.3 to 1.2 μM as arsenate (pentav
Authors
James S. Kuwabara