Pintails on the move
M. Miller, J. Fleskes, D. Orthmeyer, John Y. Takekawa, Michael L. Casazza, B. Perry
2002, California Waterfowl 8, 10-13
No abstract available at this time...
Estimating the number of females with cubs-of-the-year in the Yellowstone grizzly bear population
K.A. Keating, C.C. Schwartz, M.A. Haroldson, D. Moody
2002, Ursus (13) 161-174
Distribution and movements of female northern pintails radiotagged in San Joaquin Valley, California
Joseph P. Fleskes, Robert L. Jarvis, David S. Gilmer
2002, Journal of Wildlife Management (66) 138-152
To improve understanding of northern pintail (Anas acuta) distribution in central California (CCA), we radiotagged 191 Hatch-Year (HY) and 228 After-Hatch-Year (AHY) female northern pintails during late August-early October, 1991-1993, in the San Joaquin Valley (SJV) and studied their movements through March each year. Nearly all (94.3%) wintered in CCA,...
Algal layer ratios as indicators of air pollutant effects in Permelia sulcata
J. P. Bennett
2002, Bryologist (105) 104-110
Parmelia sulcata Taylor is generally believed to be fairly pollution tolerant, and consequently it is sometimes collected in urban and/or polluted localities. The condition of these specimens, however, is not always luxuriant and healthy. This study tested the hypothesis that total thallus and algal layer thickness, and the algal layer...
Tulare Basin Waterfowl and Central Valley Duck Hunters
Joseph P. Fleskes
2002, California Waterfowl 12-13
No abstract available at this time...
Sun photometer and lidar measurements of the plume from the Hawaii Kilauea Volcano Pu'u O'o vent: Aerosol flux and SO2 lifetime
J.N. Porter, K.A. Horton, P. J. Mouginis-Mark, B. Lienert, S.K. Sharma, E. Lau, T. Elias, A. J. Sutton, C. Oppenheimer
2002, Geophysical Research Letters (29) 30-1-30-4
Aerosol optical depths and lidar measurements were obtained under the plume of Hawaii Kilauea Volcano on August 17, 2001, ∼9 km downwind from the erupting Pu'u O'o vent. Measured aerosol optical depths (at 500 nm) were between 0.2–0.4. Aerosol size distributions inverted from the spectral sun photometer measurements suggest the...
Nitrogen loss from nonpolluted South American forests mainly via dissolved organic compounds
Steven S. Perakis, L. O. Hedin
2002, Nature (415) 416-419
Conceptual1,<a id="ref-link-section-d257630553e380" title="Aber, J. et al. Nitrogen saturation in temperate forest ecosystems: Hypotheses revisited. BioScience 48, 921–34 (1998)." href="https://www.nature.com/articles/415416a#ref-CR2" data-track="click" data-track-action="reference anchor"...
Controls on facies and sequence stratigraphy of an upper Miocene carbonate ramp and platform, Melilla basin, NE Morocco
Kevin J. Cunningham, Luke S. Collins
2002, Sedimentary Geology (146) 285-304
Upwelling of cool seawater, paleoceanographic circulation, paleoclimate, local tectonics and relative sea-level change controlled the lithofacies and sequence stratigraphy of a carbonate ramp and overlying platform that are part of a temporally well constrained carbonate complex in the Melilla basin, northeastern Morocco. At Melilla, from oldest to youngest, a third-order...
A statistical evaluation of non-ergodic variogram estimators
F.C. Curriero, M.E. Hohn, A.M. Liebhold, S.R. Lele
2002, Environmental and Ecological Statistics (9) 89-110
Geostatistics is a set of statistical techniques that is increasingly used to characterize spatial dependence in spatially referenced ecological data. A common feature of geostatistics is predicting values at unsampled locations from nearby samples using the kriging algorithm. Modeling spatial dependence in sampled data is necessary before kriging and is...
The US Geological Survey's national coal resource assessment: The results
Leslie F. Ruppert, Mark A. Kirschbaum, Peter D. Warwick, Romeo M. Flores, Ronald H. Affolter, Joseph R. Hatch
2002, International Journal of Coal Geology (50) 247-274
The US Geological Survey and the State geological surveys of many coal-bearing States recently completed a new assessment of the top producing coal beds and coal zones in five major producing coal regions—the Appalachian Basin, Gulf Coast, Illinois Basin, Colorado Plateau, and Northern Rocky Mountains and Great Plains. The assessments,...
The effects of partial cutting on stand structure and growth of western hemlock-Sitka spruce stands in southeast Alaska
R.L. Deal, J. C. Tappeiner
2002, Forest Ecology and Management (159) 173-186
The effects of partial cutting on species composition, new and residual-tree cohorts, tree size distribution, and tree growth was evaluated on 73 plots in 18 stands throughout southeast Alaska. These partially cut stands were harvested 12-96 years ago, when 16-96% of the former stand basal area was removed. Partial cutting...
Status and trends in atmospheric deposition and emissions near Atlanta, Georgia, 1986-99
N.E. Peters, T.P. Meyers, Brent T. Aulenbach
2002, Atmospheric Environment (36) 1577-1588
Wet and dry atmospheric deposition were investigated from weekly data, 1986-99 (1986-97 for dry deposition) at the Panola Mountain Research Watershed (PMRW), a forested research site 25 km, southeast of Atlanta, Georgia. Furthermore, the wet deposition was compared to that at three adjacent National Atmospheric Deposition Program's National Trends Network...
Remarks on the current status of the non-marine herpetofauna of Egmont Key, Florida
C. Kenneth Dodd Jr., Marian L. Griffey
2002, Florida Scientist (65) 62-66
No abstract available....
Simulation of broadband ground motion including nonlinear soil effects for a magnitude 6.5 earthquake on the Seattle fault, Seattle, Washington
S. Hartzell, A. Leeds, A. Frankel, R. A. Williams, J. Odum, W. Stephenson, W. Silva
2002, Bulletin of the Seismological Society of America (92) 831-853
The Seattle fault poses a significant seismic hazard to the city of Seattle, Washington. A hybrid, low-frequency, high-frequency method is used to calculate broadband (0-20 Hz) ground-motion time histories for a M 6.5 earthquake on the Seattle fault. Low frequencies (1 Hz) are calculated by a stochastic method that uses...
Book review: Reptiles and amphibians of the Smokies
C. Kenneth Dodd Jr.
2002, Herpetological Review (33) 76-77
No abstract available. Review info: Reptiles and amphibians of the Smokies. By Stephen C. Tilley, James E. Huheey, 2001. ISBN: 978-0937207307, 143 p....
Description and comparison of geologic maps with FRAGSTATS - A spatial statistics program
G. L. Raines
2002, Computers & Geosciences (28) 169-177
FRAGSTATS is a public-domain GIS implementation of a set of spatial statistics that address a fundamental problem in GIS applications, description and comparison of maps. The spatial statistics from the 1:2,500,000-scale United States geologic map of Nevada, the central United States, and the northeastern United States quantify the differences in...
Community food webs
Donald L. DeAngelis
Abdel H. El-Shaarawi, Walter W. Piegorsch, editor(s)
2002, Book chapter, Encyclopedia of Environmetrics
Community food webs describe the feeding relationships, or trophic interactions, between the species of an ecological community. Both the structure and dynamics of such webs are the focus of food web research. The topological structures of empirical food webs from many ecosystems have been published on the basis of field...
Health impacts of coal and coal use: Possible solutions
R. B. Finkelman, W. Orem, V. Castranova, C. A. Tatu, H. E. Belkin, B. Zheng, H.E. Lerch, S.V. Maharaj, A. L. Bates
2002, International Journal of Coal Geology (50) 425-443
Coal will be a dominant energy source in both developed and developing countries for at least the first half of the 21st century. Environmental problems associated with coal, before mining, during mining, in storage, during combustion, and postcombustion waste products are well known and are being addressed by ongoing research....
Source of solutes to the coastal sabkha of Abu Dhabi
W.W. Wood, W. E. Sanford, A.R.S. Al Habshi
2002, Geological Society of America Bulletin (114) 259-268
An ascending-brine model is proposed to address the observed isotope geochemistry, solute composition, and solute and water fluxes in the coastal sabkha of the Emirate of Abu Dhabi. Mass-balance measurements document that >95% of the solutes are derived from ascending continental brines; minor amounts are derived from rainfall and from...
Fish communities of the Sacramento River Basin: Implications for conservation of native fishes in the Central Valley, California
J. T. May, L. R. Brown
2002, Environmental Biology of Fishes (63) 373-388
The associations of resident fish communities with environmental variables and stream condition were evaluated at representative sites within the Sacramento River Basin, California between 1996 and 1998 using multivariate ordination techniques and by calculating six fish community metrics. In addition, the results of the current study were compared with recent...
Multiple-bench architecture and interpretations of original mire phases - Examples from the Middle Pennyslvanian of the Central Appalachian Basin, USA
S.F. Greb, C.F. Eble, J.C. Hower, W.M. Andrews
2002, International Journal of Coal Geology (49) 147-175
Coal seams often exhibit lateral and vertical variability in composition. When sampled as a whole seam this variability is masked. But if a seam is subdivided into correlateable components, this variability can be tested and better understood. Herein, an architectural approach is used to divide seams into intra-seam components. Clastic...
Stress triggering of the 1999 Hector Mine earthquake by transient deformation following the 1992 Landers earthquake
F. F. Pollitz, I. S. Sacks
2002, Bulletin of the Seismological Society of America (92) 1487-1496
The M 7.3 June 28, 1992 Landers and M 7.1 October 16, 1999 Hector Mine earthquakes, California, both right lateral strike-slip events on NNW-trending subvertical faults, occurred in close proximity in space and time in a region where recurrence times for surface-rupturing earthquakes are thousands of years. This suggests a...
The nature of the crust under Cayman Trough from gravity
Uri S. ten Brink, D.F. Coleman, William P. Dillon
2002, Marine and Petroleum Geology (19) 971-987
Considerable crustal thickness variations are inferred along Cayman Trough, a slow-spreading ocean basin in the Caribbean Sea, from modeling of the gravity field. The crust to a distance of 50 km from the spreading center is only 2–3 km thick in agreement with dredge and dive results. Crustal thickness increases to ∼5.5 km...
Fate and effects of the triazinone herbicide metribuzin in experimental pond mesocosms
J.F. Fairchild, L.C. Sappington
2002, Archives of Environmental Contamination and Toxicology (43) 198-202
Metribuzin is a triazinone herbicide that is widely used for the control of grasses and broad-leaved weeds in soybeans, sugarcane, and numerous other crops. Metribuzin is highly toxic to freshwater macrophytes and algae under laboratory conditions (median plant EC50 = 31 ??g/L; n = 11 species) but has not been...
Implications of flood pulse restoration for Populus regeneration on the upper Missouri River
Ken D. Bovee, Michael L. Scott
2002, River Research and Applications (18) 287-298
We developed a mass balance flow model to reconstruct unregulated daily peak flows in the National Wild and Scenic reach of the Missouri River, Montana. Results indicated that although the observed frequency of large peak flows has not changed in the post-dam period, their magnitude has been reduced from 40...
