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Page 2454, results 61326 - 61350

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Macroinvertebrate abundance, water chemistry, and wetland characteristics affect use of wetlands by avian species in Maine
J. R. Longcore, D.G. McAuley, G.W. Pendleton, C. R. Bennatti, T.M. Mingo, K. L. Stromborg
Alan Hanson, Joseph Kerekes, Julie Paquet, editor(s)
2006, Conference Paper, Limnology and Waterbirds 2003. The 4th Conference of the Aquatic Birds Working Group of the Societas Internationalis Limnologiae (SIL)
Our objective was to determine use by avian species (e.g., piscivores, marsh birds, waterfowl, selected passerines) of 29 wetlands in areas with low (<200 ueq 1-1) acid-neutralizing capacity (ANC) in southeastern Maine. We documented bird, pair, and brood use during 1982?1984 and in 1982 we sampled 10 wetlands with...
Development of the Moon
Michael B. Duke, Lisa R. Gaddis, G. Jeffrey Taylor, Harrison H. Schmitt
2006, Reviews in Mineralogy and Geochemistry (60) 597-655
No abstract available....
Identifying the effects of petrologic processes in a closed basaltic system using trace element concentrations in olivines and glasses: Implications for comparative planetology
Justin Hagerty, Charles K. Shearer, David Vaniman, Paul V. Burger
2006, American Mineralogist (91) 1499-1508
We use trace-element concentrations in olivines and glasses from a closed basaltic system to identify the effects of petrologic processes on the trace-element record of that system. The closed basaltic system in question is the Makaopuhi Lava Lake (MLL), which is closed with respect to magma mixing. Detailed studies of...
Selected case studies using CFC data
L.N. Plummer, Eurybiades Busenberg, P.G. Cook, L. F Han, M. Groning
2006, Book chapter, Use of chlorofluorocarbons in hydrology: A guidebook
No abstract available. ...
The San Andreas fault in Sonoma and Mendocino counties
Carol S. Prentice, Keith I. Kelson
Carol S. Prentice, Judith G. Scotchmoor, Eldridge M. Moores, Jon P. Kiland, editor(s)
2006, Book chapter, 1906 San Francisco earthquake centennial field guides: Field trips associated with the 100th Anniversary Conference, 18–23 April 2006, San Francisco, California
This two-day trip explores the northern San Andreas fault in the Gualala area between Fort Ross and Point Arena (Fig. 1). The first stop overlooks the Golden Gate Bridge and includes a discussion of its in-progress seismic retrofit. Several subsequent stops are at paleoseismic sites on...
Source scaling telationships of microearthquakes at Parkfield, CA, determined using the SAFOD pilot hole seismic array
Kazutoshi Imanishi, William L. Ellsworth
Rachel E. Abercrombie, Art McGarr, Giulio Di Toro, Hiroo Kanamori, editor(s)
2006, Book chapter, Earthquakes: Radiated energy and the physics of faulting
Weestimate thesourceparametersof34microearthquakes at Parkfield,CA,ranginginsizefromM-0.2 toM2.1, byanalyzingseismogramsrecorded bythe32-level, 3-componentseismic arrayinstalled in theSAFODPilotHole. Wesucceeded in obtainingstablespectral ratios by stacking theratioscalculatedfromthemovingwindowstakenalongtherecordfollowingthedirectwaves.Thesespectral ratios were modeledtodetermine seismicmoments andcornerfrequenciesassuming an omega-squared model. Static stress dropsand apparent stresses ofmicroearthquakes at Parkfielddisplay moment-independent scaling in agreementwith scaling lawsreported for moderate and large earthquakes. It is likely that thedynamics...
Groundwater modeling
Leonard F. Konikow, Thomas E. Reilly, Paul M. Barlow, Clifford I. Voss
J.W. Delleur, editor(s)
2006, Book chapter, The handbook of groundwater engineering
No abstract available....
Earthquake Trail, Sanborn County Park: A geology hike along the San Andreas fault
Philip W. Stoffer
Carol S. Prentice, Judith G. Scotchmoor, Eldridge M. Moores, Jon P. Kiland, editor(s)
2006, Book chapter, 1906 San Francisco earthquake centennial field guides: Field trips associated with the 100th Anniversary Conference, 18–23 April 2006, San Francisco, California
On the southern part of the San Francisco Peninsula, the San Andreas fault traverses the actively uplifting Santa Cruz Mountains. The field guide is comprised of a hiking tour along the fault in Sanborn County fault, a visit to a winery and vineyards traversed by the fault, and visits to...
Temporal, spatial, and environmental influences on the demographics of grizzly bears in the Greater Yellowstone Ecosystem
Charles C. Schwartz, Mark A. Haroldson, Gary C. White, Richard B. Harris, Steve Cherry, Kim A. Keating, Dave Moody, Christopher Servheen
2006, Book
During the past 2 decades, the grizzly bear (Ursus arctos) population in the Greater Yellowstone Ecosystem (GYE) has increased in numbers and expanded in range. Understanding temporal, environmental, and spatial variables responsible for this change is useful in evaluating what likely influenced grizzly bear demographics in the GYE and where...
Estimating Potential Effects of Hypothetical Oil Spills on Polar Bears
Steven C. Amstrup, George M. Durner, T. L. McDonald, W.R. Johnson
2006, Report
Much is known about the transport and fate of oil spilled into the sea and its toxicity to exposed wildlife. Previously, however, there has been no way to quantify the probability that wildlife dispersed over the seascape would be exposed to spilled oil. Polar bears, the apical predator of the...
The role of biological uptake in iron and manganese cycling in Lake Baikal
L.Z. Granina, E. Callender
2006, Conference Paper, Hydrobiologia
The role of biological uptake in the internal cycling of Fe and Mn in Lake Baikal was quantified. Biological uptake, sedimentation consisting of the biogenic and lithogenic fluxes, and remineralization have been evaluated. The results of calculations show that about 5-10% of Fe and Mn accumulated in the lake are...
Terrapene carolina. Eastern Box Turtle
T.G. Farrell, C.K. Dodd Jr., P.G. May
Peter A. Meylan, editor(s)
2006, Book chapter, Chelonian Research Monographs 3. Biology and Conservation of Florida's Turtles
Abstract not supplied at this time...