Reforestation of bottomland hardwoods and the issue of woody species diversity
J. A. Allen
1997, Restoration Ecology (5) 125-134
Bottomland hardwood forests in the southcentral United States have been cleared extensively for agriculture, and many of the remaining forests are fragmented and degraded. During the last decade, however, approximately 75,000 ha of land-mainly agricultural fields-have been replanted or contracted for replanting, with many more acres likely to be reforested...
Survival rates of adult lake trout in northwestern Lake Michigan, 1983-1993
Mary C. Fabrizio, Mark E. Holey, Patrick C. McKee, Michael L. Toneys
1997, North American Journal of Fisheries Management (17) 413-428
The restoration of lake trout Salvelinus namaycush in Lake Michigan has been an elusive goal of resource management agencies in the Great Lakes region. In this study, we estimated annual survival rates of adult lake trout from an area in northwestern Lake Michigan known as the Clay Banks refuge. We...
The influence of seine capture efficiency on fish abundance estimates in the upper Mississippi River
L. E. Holland Bartels, M. R. Dewey
1997, Journal of Freshwater Ecology (12) 101-111
The effects of season, presence of vegetation, and time of day on seine capture efficiency for fish were evaluated using test enclosures in the upper Mississippi River. Overall capture efficiency of the seine haul was 49% (53% during the day and 43% at night). During daytime tests, the efficiency ranged...
An empirical comparison of stock identification techniques applied to striped bass
John R. Waldman, R. Anne Richards, W. Bane Schill, Isaac Wirgin, Mary C. Fabrizio
1997, Transactions of the American Fisheries Society (126) 369-385
Managers of migratory striped bass stocks that mix along the Atlantic coast of the USA require periodic estimates of the relative contributions of the individual stocks to coastal mixed- stock fisheries; however, to date, a standard approach has not been adopted. We compared the performances of alternative stock identification...
Changes in breeding bird populations in North Dakota: 1967 to 1992-93
L.D. Igl, Douglas H. Johnson
1997, The Auk (114) 74-92
We compared breeding bird populations in North Dakota using surveys conducted in 1967 and 1992-93. In decreasing order, the five most frequently occurring species were Horned Lark (Eremophila alpestris), Brown-headed Cowbird (Molothrus ater), Western Meadowlark (Sturnella neglecta), Red-winged Blackbird (Agelaius phoeniceus), and Eastern Kingbird (Tyrannus tyrannus). The five most abundant...
Occurrence of zebra mussels in near-shore areas of western Lake Erie
Christine M. Custer, T. W. Custer
1997, Journal of Great Lakes Research (23) 108-115
We measured biomass, percent coverage, and length-frequency of zebra mussels in near-shore areas of western Lake Erie between 16 September and 10 November 1993 as part of a larger study on the ecological relationship between diving ducks and zebra mussels. Wet...
Combined-sewer overflow data and methods of sample collection for selected sites, Detroit, Michigan
M.J. Sweat, J.R. Wolf
1997, Open-File Report 96-646
The discharge of untreated sewage is illegal in Michigan unless permitted under Act 245 due to public health concerns. In October, 1992, the Michigan Department of Natural Resources (MDNR, now the Michigan Department of Environmental Quality) issued a discharge permit to Detroit authorizing discharge from the City's 78 combined-sewer overflows...
Status, trends, and changes in freshwater inflows to bay systems in the Corpus Christi Bay National Estuary Program study area
W.H. Asquith, J. G. Mosier, P. W. Bush
1997, Report
This report presents the results of a study to quantify current (1983–93) mean freshwater inflows to the six bay systems (open water and wetlands) in the Corpus Christi Bay National Estuary Program study area, to test for historical temporal trends in inflows, and to quantify historical and projected changes in...
Relative effects of survival and reproduction on the population dynamics of emperor geese
Joel A. Schmutz, Robert F. Rockwell, Margaret R. Petersen
1997, Journal of Wildlife Management (61) 191-201
Populations of emperor geese (Chen canagica) in Alaska declined sometime between the mid-1960s and the mid-1980s and have increased little since. To promote recovery of this species to former levels, managers need to know how much their perturbations of survival and/or reproduction would affect population growth rate (λ). We constructed...
Water quality variability in San Francisco Bay, Some gGeneral lessons from 1996 sampling: 1996 annual report, San Francisco estuary regional monitoring program for trace substances
J. E. Cloern, B.E. Cole, J.L. Edmunds, J.I. Baylosis
1997, Report
This report describes the results from the 1996 Regional Monitoring Program for Trace Substances (RMP). It is the fourth Annual Report from the RMP which began in 1993 and attempts to synthesize the most obvious data patterns from the last four years. This report includes data from Base Program monitoring...
Kinderhookian (Lower Mississippian) calcareous rocks of the Howard Pass quadrangle, western Brooks Range: A section in Geologic studies in Alaska by the U.S. Geological Survey, 1995
Julie A. Dumoulin, Anita G. Harris
1997, Report, Geologic studies in Alaska by the U.S. Geological Survey, 1995 (Professional Paper 1574)
Calcareous rocks of Kinderhookian (early Early Mississippian) age are widely distributed across the Howard Pass quadrangle in the western Brooks Range. Most occur in the lower part of the Lisburne Group (herein called the Rough Mountain Creek unit) and the upper part of the Endicott Group (Kayak Shale) in two...
Analysis of the Cape Cod tracer data
Souheil Ezzedine, Yoram Rubin
1997, Water Resources Research (33) 1-11
An analysis of the Cape Cod test was performed using several first- and higher-order theoretical models. We compare conditional and unconditional solutions of the transport equation and employ them for analysis of the experimental data. We consider spatial moments, mass breakthrough curves, and the distribution of the solute mass in...
Turbulent stresses in the surf-zone: Which way is up?
John W. Haines, Guy Gelfenbaum
B.L Edge, editor(s)
1997, Conference Paper, Proceedings of the Coastal Engineering Conference
Velocity observations from a vertical stack of three-component Acoustic Doppler Velocimeters (ADVs) within the energetic surf-zone are presented. Rapid temporal sampling and small sampling volume provide observations suitable for investigation of the role of turbulent fluctuations in surf-zone dynamics. While sensor performance was good, failure to recover reliable measures of...
Preliminary geologic map of the Fillmore 7.5' quadrangle, Southern California: A digital database
R.F. Yerkes, R. H. Campbell
1997, Open-File Report 95-802
This Open-File report is a digital geologic map database. This pamphlet serves to introduce and describe the digital data. There is no paper map included in the Open-File report. This digital map database is compiled from previously published sources combined with some new mapping and modifications in nomenclature. The geologic map...
Preliminary geologic map of the Canoga Park 7.5' Quadrangle, southern California: A digital database
R.F. Yerkes, Russell H. Campbell
1997, Open-File Report 95-90
No abstract available....
Quality-control design for surface-water sampling in the National Water-Quality Assessment Program
David K. Mueller, Jeffrey D. Martin, Thomas J. Lopes
1997, Open-File Report 97-223
The data-quality objectives of the National Water-Quality Assessment Program include estimating the extent to which contamination, matrix effects, and measurement variability affect interpretation of chemical analyses of surface-water samples. The quality-control samples used to make these estimates include field blanks, field matrix spikes, and replicates. This report describes the design...
Cartographic data on CD-ROM
Water Resources Division, U.S. Geological Survey
1997, Fact Sheet 068-94
Watershed Characteristics and Land Management in the Nonpoint-Source Evaluation Monitoring Watersheds in Wisconsin
K.F. Rappold, J.A. Wierl, F.U. Amerson
1997, Open-File Report 97-119
In 1992, the Wisconsin Department of Natural Resources, in cooperation with the U.S. Geological Survey, began a land-use inventory to identify sources of contaminants and track the land-management changes for eight evaluation monitoring watersheds in Wisconsin. An important component of the land-use inventory has been developing descriptions and preliminary assessments...
Dissolved nutrient data for the San Francisco Bay Estuary, California, January through November 1995
Stephen W. Hager, Laurence E. Schemel
1997, Open-File Report 97-359
The U.S. Geological Survey conducted hydrologic investigations in San Francisco Bay between January and November of 1995. Dissolved inorganic plant nutrients, nitrate, nitrite, ammonium, silica, and reactive phosphorus were measured in surface and in near-bottom waters at previously established locations in the channel portions of both northern and southern reaches...
A Graphical-User Interface for the U. S. Geological Survey's SUTRA Code using Argus ONE (for simulation of variable-density saturated-unsaturated ground-water flow with solute or energy transport)
Clifford I. Voss, David Boldt, Allen M. Shapiro
1997, Open-File Report 97-421
This report describes a Graphical-User Interface (GUI) for SUTRA, the U.S. Geological Survey (USGS) model for saturated-unsaturated variable-fluid-density ground-water flow with solute or energy transport,which combines a USGS-developed code that interfaces SUTRA with Argus ONE, a commercial software product developed by Argus Interware. This product, known as Argus Open Numerical...
Evaluation of Nonpoint-Source Contamination, Wisconsin: Selected Topics for Water Year 1995
D.W. Owens, Steven R. Corsi, K.F. Rappold
1997, Open-File Report 96-661-A
The objective of the watershed-management evaluation monitoring program in Wisconsin is to evaluate the effectiveness of best-management practices (BMP's) for controlling nonpoint-source contamination in eight rural and four urban watersheds. This report, the fourth in an annual series of reports, presents a summary of the data collected for the program...
Hydrologic and hydrochemical data for the Ob-Irtysh and Yenisey River systems of central Russia, 1954-1988
N.N. Bobrovitskaya, B.G. Skakalsky, K.M. Zubkova, G.I. Dobrotvorskaya, I.V. Petrova, M.V. Tsivjyan, N.I. Chistyakova, V.G. Yanuta
1997, Open-File Report 97-232
STATSGO soil characteristics for the conterminous United States
David M. Wolock
1997, Open-File Report 97-656
This digital data release consists of an ARC/INFO grid and associated INFO tables. The grid is called MUID and has STATSGO (U.S. Department of Agriculture, 1994) soil mapping unit identifiers gridded on a 1-kilometer resolution for the conterminous United States. The INFO tables have soil characteristics data in them. The ITEMS in the tables are...
Digital compilation of landslide overview map of the conterminous United States
Jonathan W. Godt, Dorothy H. Radbruch-Hall
1997, Open-File Report 97-289-B
This dataset consists of polygons enclosing areas of landslide incidence and susceptibility for the conterminous United States....
The Late Triassic bivalve Monotis in accreted terranes of Alaska
Norman J. Silberling, J. A. Grant-Mackie, K. M. Nichols
1997, Bulletin 2151
Late Triassic bivalves of the genus Monotis occur in at least 16 of the lithotectonic terranes and subterranes that together comprise nearly all of Alaska, and they also occur in the Upper Yukon region of Alaska where Triassic strata are regarded as representing non-accretionary North America. On the basis...
