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Selected hydrologic data for the Mesilla ground-water basin, 1987 through 1992 water years, Doña Ana County, New Mexico, and El Paso County, Texas
Edward L. Nickerson
1995, Open-File Report 95-111
The Mesilla ground-water basin monitoring program was established in 1987 to document hydrologic conditions and establish a long-term, continuous data base to permit future quantitative evaluation of the ground-water flow system and stream/aquifer relations. Data collection is divided into three program elements. These are the (1) Mesilla ground- water basin...
Optimizing sampling effort for sampling warmwater stream fish communities
J.T. Peterson, C.F. Rabeni
1995, North American Journal of Fisheries Management (15) 528-541
We measured the variation of some commonly used fish community attributes for two warmwater stream reaches during June–October 1992 and 1993. Habitat‐specific variation among samples, expressed as coefficients of variation (SD/mean) collected throughout the study ranged from 0.13 to 1.58 and were lower for community‐level attributes such as species richness...
Monitoring exposure of nestling songbirds to agricultural application of an organophosphorus insecticide using cholinesterase activity
Pamela F. McInnes, David E. Andersen, Dale J. Hoff, Michael J. Hooper, L. K. Kinkel
1995, Environmental Toxicology and Chemistry (15) 544-552
In June 1992 we collected 53 blood plasma samples from nestling red‐winged blackbirds (Agelaius phoeniceus), house sparrows (Passer domesticus), and brown‐headed cowbirds (Molothrus ater) at five study sites in northwestern Minnesota to evaluate the feasibility of using plasma and brain cholinesterase (ChE) activity and reactivation as a means of assessing...
Geodetic measurements used to estimate ice transfer during Bering Glacier surge
Jeanne Sauber, George Plafker, John Gipson
1995, Eos Science News (76) 289-290
The application of geodetic measurements to glacial research has found a new testing ground: near a surging Alaskan glacier. A set of geodetic measurements collected adjacent to the Bagley Icefield (Figure 1) and along the Gulf of Alaska (Figure 2) are being used to estimate the effects of the Bering...
Microwave radiometers and their application in field and aircraft campaigns for remote sensing of land and water surfaces
A.M. Shutko, A.A. Haldin, E.P. Novichikhin, A.A. Mil’shin, S.P. Golovachev, A.G. Grankov, V.G. Mishanin, T.J. Jackson, B.J. Logan, G.B. Tilley, E.W. Ramsey, H. Pirchner
1995, Conference Paper, 1995 International Geoscience and Remote Sensing Symposium, IGARSS '95. Quantitative Remote Sensing for Science and Applications
The paper presents an overview of the scientific investigations and practical applications of a group of specialists working in the Institute of Radioengineering and Electronics of the Russian Academy of Sciences (IRE RAS) with their partners in Russia and the USA in the area of passive microwave remote sensing as...
Pathological and behavioral manifestations of the “Cayuga syndrome,” a thiamine deficiency in larval landlocked Atlantic salmon
Jeffrey P. Fisher, Jan M. Spitsbergen, Tina Iamonte, Edward E. Little, Aaron DeLonay
1995, Journal of Aquatic Animal Health (7) 269-283
The “Cayuga syndrome” is a maternally transmitted, naturally occurring thiamine deficiency that causes 100% mortality of larval landlocked Atlantic salmon Salmo salar in several of New York's Finger Lakes, Results of multiyear studies to qualify and quantify the neurobehavioral and gross pathological signs of this condition are described, Affected sac fry became...
Surface electromagnetic geophysical exploration of the ground-water resources of Isla de Mona, Puerto Rico, a caribbean carbonate island
M.I. Martinez, Joseph W. Troester, Ronald T. Richards
1995, Carbonates and Evaporites (10) 184-192
Two electromagnetic surface geophysical techniques were used to explore the ground-water resources of Isla de Mona, Puerto Rico—a 55-square-kilometer island located between Puerto Rico and Hispañiola, Isla de Mona is a tectonically uplifted carbonate plateau of Neogene age that has an average elevation of about 50 meters above mean...
Denudation rates determined from the accumulation of in situ-produced 10Be in the luquillo experimental forest, Puerto Rico
Erik Thorson Brown, Robert F. Stallard, Matthew C. Larsen, Grant M. Raisbeck, Francoise Yiou
1995, Earth and Planetary Science Letters (129) 193-202
We present a simple method for estimation of long-term mean denudation rates using in situ-produced cosmogenic 10Be in fluvial sediments. Procedures are discussed to account for the effects of soil bioturbation, mass wasting and attenuation of cosmic rays by biomass and by local topography. Our analyses of 10Be in...
Effects of geothermal development on deformation in the Long Valley Caldera, eastern California, 1985-1994
M.L. Sorey, C. D. Farrar, G.A. Marshall, J.F. Howie
1995, Journal of Geophysical Research B: Solid Earth (100) 12475-12486
Long Valley caldera in east central California has been the site of crustal unrest in the form of seismicity and ground deformation in response to magmatic inflation since 1980. Uplift of the resurgent dome has totaled ∼0.6 m over the 1975–1992 period. Within this region of uplift, and near the...
Surface seismic and electrical methods to detect fluids related to faulting
Donna Eberhart-Phillips, William D. Stanley, Brian D. Rodriguez, William J. Lutter
1995, Journal of Geophysical Research Solid Earth (100) 12919-12936
In the absence of drilling, surface-based geophysical methods are necessary to observe fault zones and fault zone physical properties at seismogenic depths. These in situ physical properties can then be used to infer the presence and distribution of fluids along faults, although such observations are by nature indirect and become...
Banding reference areas and survival rates of green-winged teal, 1950-1989
Diane S. Chu, James D. Nichols, Jay B. Hestbeck, James E. Hines
1995, Journal of Wildlife Management (59) 487-498
The green-winged teal (Anas crecca carolinensis) is an important harvest species, yet we know relatively little about its population ecology. We investigated aspects of green-winged teal population ecology of potential importance to waterfowl managers. We used recoveries of green-winged teal banded during winter (1950-89) to establish banding reference areas and...
Factors affecting visibility rate of aerial waterfowl surveys in the Mississippi alluvial valley
David R. Smith, Kenneth J. Reinecke, Michael J. Conroy, Michael W. Brown, James R. Nassar
1995, Journal of Wildlife Management (59) 515-527
Because visibility bias can confound attempts to detect changes in abundance, we evaluated factors that affect visibility rate in aerial surveys of wintering waterfowl. We placed waterfowl decoys in 32 2- x 0.25-km strip transects in the Mississippi Alluvial Valley (MAV) during February 1990 and 1991 and observed the decoys...
Survival of adult female northern pintails in the Sacramento Valley, California
Michael R. Miller, Joseph P. Fleskes, Dennis L Orthmeyer, Wesley E. Newton, David S. Gilmer
1995, Journal of Wildlife Management (59) 478-486
North American populations of northern pintails (Anas acuta) declined between 1979 and the early 1990s. To determine if low survival during winter contributed to declines, we estimated winter (last week of Aug-Feb 1987-90) survival for 190 adult (after hatching yr [AHY]) female radio-tagged pintails in late summer in Sacramento Valley...
Effects of canine parvovirus on gray wolves in Minnesota
L. David Mech, Sagar M. Goyal
1995, Journal of Wildlife Management (59) 565-570
Long-term effects of disease on wild animal population demography is not well documented. We studied a gray wolf (Canis lupus) population in a 2,060-km2 area of Minnesota for 15 years to determine its response to canine parvovirus (CPV). The CPV had little effect (P > 0.05) on wolf population size...
Use of solicited bands and separation of hunting and natural mortality: a comment
Michael J. Conroy, James E. Hines, B. Kenneth Williams
1995, Journal of Wildlife Management (59) 619-621
We previously presented (Conroy 1985, Conroy et al. 1989) models for analysis of band recovery data stratified into those voluntarily reported and those obtained by solicitation, similar to models described by Pollock et al. (1994). We discuss differences between the 2 modeling approaches and suggest designs and analyses involving...
The relationship of habitat characteristics to the distribution of chironomidae (Diptera) as measured by pupal exuviae collections in a large river system
Steven V. Fend, James L. Carter
1995, Journal of Freshwater Ecology (10) 343-359
Floating chironomid pupal exuviae were collected throughout the Yakima River (Washington, USA) and tributaries in 1989 and 1990. All samples were taken during the October-November low-flow season and most sites were visited once with a sampling effort of approximately 10 minutes. Sampled stream segments ranged from 3rd to 7th order...
When did Sardinia stop rotating? New palaeomagnetic results
L. Vigliotti, Victoria E. Langenheim
1995, Terra Nova (7) 424-435
Previous palaeomagnetic results from Tertiary volcanic rocks of Sardinia suggest that the island underwent a quick counterclockwise rotation between 20.5 and 19 Ma. In order to test this hypothesis, a new palaeomagnetic study was carried out on sediments and volcanic rocks with well-controlled biostratigraphic or radiometric ages younger than the...