D.L. DeAngelis
2002, Book chapter, Encyclopedia of Environmetrics.
Abstract not supplied at this time...
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Publication Extents
Not all publications have extents, not all extents are completely accurateW.B. Karesh, S.A. Osofsky, Tonie E. Rocke, P.L. Barrows
2002, Conservation Biology (16) 1432-1434
No abstract available....
James A. Estes
Richard L. Knight, Suzanne Riedel, editor(s)
2002, Book chapter, Aldo Leopold and the ecological conscience
No abstract available....
J.E. Lovich
B. Tellman, editor(s)
2002, Invasive species in the Sonoran Region. 331-335
No abstract available at this time...
H. L. Kincaid, L.J. Mengel, S. Brimm
2002, Book, National Fish Strain Registry
No abstract available at this time...
Jonathan Taylor, Jerry Vaske, Maureen Donnelly, Lori Shelby
2002, Report
This study examined National Wildlife Refuge (NWR) visitors' reactions to changes in fees implemented as part of the fee demonstration program. Visitors' evaluations of the fees paid were examined in addition to their beliefs about fees and the fee demonstration program, and the impact of fees paid on their intention...
M. K. Burnham-Curtis, T.M. Ramme, T. N. Todd, C.R. Bronte, G.W. Fleischer, N.M. Pronin, S.G. Maistrenko
2002, Advances in Limnology (57) 85-95
Omul, Coregonus autumnalis, are a commercially important coregonine fish from Lake Baikal, Siberia, Russia. In Lake Baikal, three morphotypes recognized by fishery experts occupy different zones in the lake: they are referred to as "littoral," "pelagic," and "benthic". Expressed character divergence was supported by whole-body morphometric analysis, but it is...
R. S. Redman, R. J. Rodriguez
2002, Mycological Research (106) 1427-1434
Extracellular enzymes play an important role in the pathogenicity and virulence of phytopathogenic fungi. Several isolates of Colletotrichum coccodes, causal agent of anthracnose on tomato, were screened to determine the relationship between protease activity and virulence. A direct relationship was observed between extracellular protease activity and the induction of disease...
T. S. Dyman, R. A. Crovelli, C. E. Bartberger, K. I. Takahashi
2002, Natural Resources Research (11) 207-218
The U.S. Geological Survey recently assessed undiscovered conventional gas and oil resources in eight regions of the world outside the U.S. The resources assessed were those estimated to have the potential to be added to reserves within the next thirty years. This study is a worldwide analysis of the estimated...
R. T. Busing, T. Fujimori
2002, Journal of Vegetation Science (13) 785-792
Dynamics of a Sequoia sempervirens forest in northern California were studied with long-term plot data (1.44 ha) and recent transect data. The study was conducted in an old stand (> 1100 yr) on alluvial flats. Over three decades (1972–2001), changes in the composition and structure of the tree stratum were minor. Sequoia maintained a...
D. S. Mueller
Wahl T.L.Pugh C.A.Oberg K.A.Vermeyen T.B.Wahl T.L.Pugh C.A.Oberg K.A.Vermeyen T.B., editor(s)
2002, Conference Paper, Hydraulic Measurements and Experimental Methods
The use of equipment based on the Doppler principle for measuring water velocity and computing discharge is common within the U.S. Geological Survey (USGS). The instruments and software have changed appreciably during the last 5 years; therefore, the USGS has begun a field validation of the instruments currently (2002) available...
Jayne Belnap
2002, Biology and Fertility of Soils (35) 128-135
Biological soil crusts can be the dominant source of N for arid land ecosystems. We measured potential N fixation rates biweekly for 2 years, using three types of soil crusts: (1) crusts whose directly counted cells were >98% Microcoleus vaginatus (light crusts); (2) crusts dominated by M....
Leslie E. Holland-Bartels, editor(s)
2002, Report
The 1989 spill of some 42 million L of crude oil into Prince William Sound, Alaska, represents not only the largest tanker spill in United States history, but the world’s largest spill in northern waters. Acute effects have been studied extensively. However, efforts to quantify the spill’s long-term chronic effects...
J.L. Armstrong, J.E. Hightower
2002, Journal of Applied Ichthyology (18) 475-480
The Atlantic sturgeon (Acipenser oxyrinchus oxyrinchus) was historically abundant within Albemarie Sound and the Roanoke River in North Carolina, but declined dramatically in the late 1800s in response to intensive fishing. Recent evidence suggests that the population may be recovering, following a statewide prohibition on harvest in 1991. A recruitment...
R. Sepic, K. Kase
2002, Government Information Quarterly (19) 407-424
Coordinated by the U.S. Geological Survey (USGS), the National Biological Information Infrastructure (NBII) is a Web-based system that provides access to data and information on the nation's biological resources. Although it was begun in 1993, predating any formal E-Government initiative, the NBII typifies the E-Government concepts outlined in the President's...
J.H. Shaw, A. Plesch, J.F. Dolan, T. L. Pratt, P. Fiore
2002, Bulletin of the Seismological Society of America (92) 2946-2960
We describe the three-dimensional geometry and Quaternary slip history of the Puente Hills blind-thrust system (PHT) using seismic reflection profiles, petroleum well data, and precisely located seismicity. The PHT generated the 1987 Whittier Narrows (moment magnitude [Mw] 6.0) earthquake and extends for more than 40 km along strike beneath the...
M.K. Schulmeister, J.M. Healey, G.W. McCall, S. Birk, J.J. Butler
2002, Acta Universitatis Carolinae, Geologica (46) 353-355
The high-resolution capabilities of direct-push technology were exploited to develop new insights into the hydrochemistry at the margin of an alluvial aquifer. Hydrostratigraphic controls on groundwater flow and contaminant loading were revealed through the combined use of direct-push electrical conductivity (EC) logging and geochemical profiling. Vertical and lateral variations in...
P. A. Macfarlane, A. Forster, D. F. Merriam, J. Schrotter, J.M. Healey
2002, Hydrogeology Journal (10) 662-673
Aquifer properties can be evaluated by monitoring artificially stimulated fluid movements between wells, if the fluid is heated. Changes in the temperature profile recorded in observation wells indicate the flow path of the heated fluid, which in effect acts as a tracer. A fluid-flow experiment in the Cretaceous Dakota Formation...
W. Henry McCullagh, James D. Williams, Stuart W. McGregor, J. Malcom Pierson, Charles Lydeard
2002, American Malacological Bulletin (17) 1-15
Recent surveys for unionid bivalves were conducted in the mainstem of the Sipsey River and headwater tributaries (Tombigbee River drainage) during the summer and autumn of 1996-1999. A total of 35 species and 22 genera were found. Museum records from the upper Sipsey, based largely on the efforts of H....
R.W. Grigg, E. E. Grossman, S.A. Earle, S.R. Gittings, D. Lott, J. McDonough
2002, Coral Reefs (21) 73-82
During the last glacial maximum (LGM), about 21,000 years ago, the Hawaiian Islands of Maui, Lanai, and Molokai were interconnected by limestone bridges, creating a super-island known as Maui-Nui. Approximately 120 m of sea-level rise during the Holocene Transgression flooded, and then drowned, these bridges separating the islands by inter-island...
B.A. Manny, G.W. Kennedy
2002, Journal of Applied Ichthyology (18) 486-490
Bottom substrates and overlying water at three sites where lake sturgeon were reported by others to spawn in the 160-km channel between lakes Huron and Erie were surveyed by boat just before or after the exact time of spawning in 2001 to determine the kinds of substrates present and differences...
R. W. Graymer, A.M. Sarna-Wojcicki, J.P. Walker, R. J. McLaughlin, R.J. Fleck
2002, Geological Society of America Bulletin (114) 1471-1479
The distribution of offset, correlated rock units, relative position of northward- younging volcanic rocks, and distribution of units not offset together reveal the history of strike-slip deformation along the East Bay fault system. The system accumulated 175 km of right-lateral offset since 12 Ma, but of this amount, only ???25...
Colin F. Williams
2002, Conference Paper, Transactions - Geothermal Resources Council
Based on current projections, the United States faces the need to increase its electrical power generating capacity by 40% (approximately 300,000 Megawatts-electrical or MWe) over the next 20 years (Energy Information Administration, EIA - Department of Energy). A critical question for the near future is the extent to which geothermal...
R.L. Brown, M.L. Wiggins, A. Gupta
2002, SPE Journal (7) 237-242
Detecting the saturation of a fractured reservoir using shear waves is possible when the fractures have a geometry that induces a component of movement perpendicular to the fractures. When such geometry is present, vertically traveling shear waves can be used to examine the saturation of the fractured reservoir. Tilted, corrugated,...
A. Krings, R. Westbrooks, J. Lloyd
2002, SIDA, Contributions to Botany (20) 845-848
Cirsium nuttallii (Asteraceae) is documented for North Carolina. The species had previously been known from Florida to South Carolina and from disjunct populations in Virginia. An illustrated key is provided to aid others in the diagnosis of Cirsium in North Carolina and the southeast....