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Performance Of Sodium Cyanide Ejectors, Guy Connnolly, Gary D. Simmons

Vertebrate Pest Conference Proceedings: 11th (1984)

Performance of three models of sodium cyanide (NaCN) ejectors was evaluated at Port O'Connor, Texas, early in 1982. M-44s, M-50s, and coyote getters were test-pulled and reset at 7-day or 21-day intervals for 42 days. Each pull was recorded as good if, in our judgment, it would have taken a coyote. Based on 402 to 430 test pulls of each ejector model, the percentages of good pulls were 40% for M-50s, 73% for M-44s, and 99% for coyote getters. M-44s with shortened plungers performed better than standard M-44s.

Most pulls of M-50s resulted in ejection failure due to corrosion between …

Nuisance Bats: Current Technology In Their Management And Control, Robert L. Corrigan

Vertebrate Pest Conference Proceedings: 11th (1984)

Managing nuisance bat colonies can be accomplished via exclusion (bat-proofing) or in limited cases via the use of repellents. Exclusion is emphasized as the first and most desirable approach providing it is also practical. New products and devices have recently become available which may significantly aid in making exclusion programs more possible and practical. Repellents such as lights, fiberglass batting and various improvised mechanical devices may all have some utilization. Controlling nuisance bats can be accomplished via the use of toxicants and trapping, although there is considerable opposition from many bat researchers towards the use of toxicants. Toxicants that have …

Woodpeckers: A Serious Suburban Problem?, Scott R. Craven

Vertebrate Pest Conference Proceedings: 11th (1984)

Damage to homes and buildings caused by woodpeckers is a widespread and locally severe problem in vertebrate pest control. This paper describes the distribution, characteristics, and impacts of woodpecker damage as determined by questionnaires, interviews, and published accounts. Woodpecker damage results from territorial behavior, feeding, or nesting activity. Some plywood and cedar are especially vulnerable. Average loss per incident is about $300, although some cases result in much greater losses. Disturbance and aggravation are also important factors. Abatement measures include scare devices, structural modification, chemical treatment of the siding, and shooting or trapping (with a permit). Success is variable. Recommendations …

Keynote Address—Politics Of Pesticides, David H. Dietz

Vertebrate Pest Conference Proceedings: 11th (1984)

The politics of pesticides is a rather humorless topic, as I'm sure most of you know. I've always been told that when you start an address or make a speech you ought to have some kind of humor, if for no other reason that you at least get your audience to listen to you for two minutes during any presen-tation. For those of you that may be members of the Audubon Society or members of the Sierra Club, I'll, in advance, make my apologies for the joke I'm about to tell. It's not really meant as a put down if …

Rat Control In Alberta, Michael J. Dorrance

Vertebrate Pest Conference Proceedings: 11th (1984)

A rat control program, administered and coordinated by Alberta Department of Agriculture, has kept Alberta essentially free of Norway rats (Rattus norvegicus) since 1950. A control zone, 29 x 600 km, along the eastern border prevents rats from moving into Alberta from the east. Sporadic rat infestations within the interior of Alberta are reported by concerned citizens and eradicated by government personnel. Strong support for the program by citizens and local governments was developed through public education and information. The program has been successful for a variety of reasons including geography, climate, legislation, availability of warfarin, the relatively …

Wetlands Forest Communities As Indicators Of Flooding Potential In Backwater Areas Of River Bottomlands, Edward E. Dale Jr.

Arkansas Water Resources Center Technical Reports

A phytosociological study was made of forest types that occur in backwater and river bottomlands of the Gulf Coastal Plain, Arkansas Valley, and Mississippi Delta Regions of Arkansas. Twenty different forest types dominated principally by a single species were identified and described. Their occurrence was then correlated with flooding conditions in their habitats and the types were arranged along decreasing moisture gradients. Those forest types tolerant of flooding or saturated soils between three months to a year or more are Taxodium distichum, Nyssa aquatica, Cephalanthus occidentalis, Salix nigra, and Planera aquatica types. Those tolerant from one to three months are …

Resource Law Notes Newsletter, No. 3, Sept. 1984, University Of Colorado Boulder. Natural Resources Law Center

Resource Law Notes: The Newsletter of the Natural Resources Law Center (1984-2002)

No abstract provided.

Use Of Microcomputers To Aid Wastewater Treatment Plant Operations, David G. Parker, Sandra C. Parker

Arkansas Water Resources Center Technical Reports

This report presents the development of a microcomputer based data management system for wastewater treatment plants. The relational database model was shown to be well suited for data management applications in wastewater treatment plants. A general data management system was developed for use with a microcomputer using a commercially available relational database management system. Use of the developed system requires no special computer training. The system was tailored for use at the wastewater treatment plant at Springdale, Arkansas. The capabilities of the system were demonstrated with actual data from the Springdale plant.

Water Management Simulator Presentations, Leslie E. Mack

Arkansas Water Resources Center Technical Reports

One of the larger stumbling blocks to comprehensive water management is the lack of public understanding of the multitude of variables that operate at the same time within the hydrologic cycle. With more public understanding, there is greater public support for various water projects. Dr. John R. Amend from Montana State University developed a water management simulator which could handle a large number of variables simultaneously of natural surface and groundwater flow plus a number of water use variables on an accelerated time sequence. By using several remote control devices, participants can "control" their water use but have no control …

Evaluation Of Nitrogen And Phosphorus Enrichment Using In Situ Enclosure Bags With Temporal Indigenous Phytoplankton Populations, Richard L. Meyer, W. Reed Green

Arkansas Water Resources Center Technical Reports

An in situ experimental procedure and protocol was developed to evaluate nitrate and phosphate enrichment using isolated indigenous phytoplankton assemblages during different seasons. Results of the comparison of the parameters-temperature, pH, alkalinity, conductivity, and dissolved oxygen between the open water and enclosed systems indicated that there was no significant influence of the physicochemical factors on the isolated biological processes. Growth responses were measured by turbidity, biomass and chlorophyll-a, the most sensitive being chlorophyll-a. Additions of nitrate and phosphate were added in known concentrations and in different magnitudes of concentration based upon ambient conditions and ratio. During the fall, phosphorus influenced …

The Probe, Issue 46 - September 1984

The Probe: Newsletter of the National Animal Damage Control Association

THE PROBE
National Animal Damage Control Association No. 46 September, 1984
Second Eastern Wildlife Damage Control Conference
Personnel Changes
New Member
Aerial hunting
Seagulls
Coyote pelts
Ninth Bird Control Seminar Proceedings
Letters to Ye Ed
Gulls and Starlicide
Behavioral and Neural Biology
Eyeball Balloons Reduce Predation
Sav-A-Life
Predator Trapping
Grizzly Bears
Phencyclidine (PCP) and Bears
Australia and their Kangaroos

Groundwater Quality And Mineral Deposits Relationships In The Ozark Mountains, Kenneth F. Steele

Arkansas Water Resources Center Technical Reports

Ninety-nine groundwater sites were sampled in northern Arkansas in order to determine the effect of local manganese, phosphate, pyrite, lead-zinc and uranium mineralization on the groundwater chemistry. Most of this study (75 springs) was concentrated in the Batesville manganese district. Hydrogeochemical exploration for these types of manganese deposits appears possible with 44 percent of the springs within 2000 feet of mineralization having anomalous metal concentrations (especially manganese). Because only a few springs were sampled in the remaining areas, the results are not conclusive; however, only the pyrite and small lead-zinc deposit would appear worthy of additional investigation. None of the …

Studies Of Effectiveness Of Commercial Home Treatment Systems, William W. Trigg, Raymond D. Couser

Arkansas Water Resources Center Technical Reports

Eleven home water systems were tested representing six different types of filtering systems. Tests were made for Sulfates, Nitrates, Phosphate, Iron and Escherichia coli and Enterobacter aerogenes before and after passing through a home treatment system. All of the systems removed iron adequately but had little effect on the removal of nitrates, phosphates, sulfates or control of pH. Since none of the ground waters was contaminated by coli- forms, nothing was established regarding the effectiveness of bacterial removal by these systems.

Factors Affecting The Removal Of Suspended And Dissolved Solids In High Strength Wastewater From Vegetable Processing, William A. Sistrunk

Arkansas Water Resources Center Technical Reports

Fifty or more individual factorial experiments were designed to study the effectiveness of physical-chemical and micro-biological treatments in removal of suspended and dissolved solids in effluent from potatoes, hominy, dry beans and other vegetables. The wastewaters were obtained from local processing plants and treated with 3 to 5 inorganic salts, 13 polymers, and 3 or more pH levels during 12 months. Also, selected strains of yeast and fungi were used to assimilate the effluent. Individual inorganic salts were more effective on a certain vegetable effluent than others. Polymers (anionic and cationic) were more effective in coagulating suspended solids in combination …

Water Current, Volume 16, No. 5, September/October 1984

Water Current Newsletter

Director's Report
1984 Irrigation Tour Highlights
Water Resources Seminar Announced
Burlington Northern Awards Grant
DEC Groundwater Strategy
Congress Passes HR 71
National Water Resources Research Conference
Research Review: Groundwater Management Using Control Analysis and Multiple Objective Techniques
Call for Papers

Wetlands And Coal Surface Mining: A Management Handbook, Milady A. Cardamone, Jan R. Taylor, William J. Mitsch

KWRRI Research Reports

As the third phase of a three-year project, this report outlines management options for protecting wetlands during the surface mining of coal, particularly for the portion of the Eastern Interior Coal Region that is found in Kentucky, Indiana, and Illinois. It is presented in manual form for use by coal mine operators, regulatory agencies and research institutions.

The previous phases of the project produced an atlas of the most heavily-mined areas of the western Kentucky coal field, which classified and identified wetlands in these areas, and discussed some specific impacts of mining on these wetlands. The need to present information …

A Statistical Comparison Of A Direct Filtration And A Conventional Water Treatment Facility In The Intermountain Region, Susan K. Burns, V. Dean Adams

Reports

Interest in low-cost direct filtration facilities and their effectiveness in treating the potable water sources of the Intermountain Region is increasing as the need for treated water supplies increase. Direct filtration is a water treatment scheme which does not include sedimentation and in some cases flocculation. Compared to conventional treatment, direct filtration has lowered capital costs, reduced space requirement, and decreased sludge quantities. Moreover, the direct filtration process may offer large reductions in coagulant dosages and costs.

Currently information comparing a direct filtration system to a conventional water treatment system in the Intermountain area is not readily available. The specific …

John Muir Newsletter, August/October 1984, Holt-Atherton Pacific Center For Western Studies

Muir Center Newsletters (1981-2015)

Holt-Atherton Pacific Center \\/ / University of the Pacific for Western Studies X^ / Stockton, Calif 95211 VOLUME 4 AUGUST/OCTOBER 1984 NUMBER 4 EDITORIAL STAFF: RONALD H. LIMBAUGH, KIRSTEN E. LEWIS PROJECT UPDATE Muir scholars take note: the microform project is rounding third and heading for home. Since the last newsletter we have completed the filming of Series II (journals) and Series IV (illustrative works), and have begun filming Series III (manuscripts). The last series to be filmed, Series I (correspondence), is fully controlled but not yet camera-ready. By November we expect to have all the filming completed and processed. …

Evalution Of Drainage Tile To Alleviate Salt Building In Heavy Soils Irrigated With Brackish Water And Cropped With Rice And Soybeans, T. C. Keisling, J. T. Gilmour, H. D. Scott, A. M. Sadeghi, R. E. Baser

Arkansas Water Resources Center Technical Reports

The use of tile drains for alleviating soluble salt accumulation on silt loam soil was investigated during 1984. Although the chemical analyses of the floodwater and tile drainage water were very similar suggesting that the floodwater was moving to the tile drain, the overall results so far indicate that this is not a feasible solution owing to lack of significant drainage. Application of DRAINMOD utilizing soil and weather data from Arkansas showed no significant effluent from the tile drains for our experimental site during rice production. This was attributed to the extremely slow saturated hydraulic conductivity values for this particular …

Identification Of Critical Water Levels In Flooded Rice Fields, Carl L. Griffis

Arkansas Water Resources Center Technical Reports

A mathematical model was developed to simulate the transient hydrology of a flooded rice field. With the model, users can determine the critical interlevee areas in which to monitor the water levels so that the irrigation well can be turned on at the critical low water level, and turned off at the critical high water level, in order to maximize water application efficiency. Sensitivity analysis performed with the model showed that it will be necessary to calibrate the model for each specific field. A calibration procedure has been developed.

Finite Element Simulation Of Saturated-Unsaturated Subsurface Flow, George E. Blandford

KWRRI Research Reports

A two-dimensional transient model for flow through saturated-unsaturated porous media is developed, The model numerically solves the pressure head dependent or moisture content dependent form of Richard's equation. The model code uses isoparametric quadratic triangular and/or quadrilateral finite elements for the geometric representation and for the weak Galerkin spacial integrations. An implicit, unconditionally stable single-step numerical time integration scheme with an oscilliatory noise reduction option is utilized for the temporal discretization. The highly efficient symmetric skyline (profile) solution scheme is used to solve the resulting simultaneous equations. The nonlinear subsurface flow parameters are approximated using cubic spline interpolation. The element …

Discharge And Travel Time Determinations In The Royal Spring Groundwater Basin, Kentucky, John Thrailkill, Douglas R. Gouzie

KWRRI Research Reports

Groundwater flow in many karst regions, including the Inner Bluegrass Karst Region of central Kentucky in which the study area was located, is unlike groundwater flow in granular aquifers. At least the major flows are turbulent and often with a free surface in large conduits, and applying concepts based on Darcy's Law to describe and model these flows is inappropriate. Parameters such as linear velocity, channel geometry, and conveyance used to describe surface streamflows are more applicable, and the primary objective of the project was to estimate these in a groundwater basin using the travel time of dye slugs and …

The Probe, Issue 45 - August 1984

The Probe: Newsletter of the National Animal Damage Control Association

THE PROBE
National Animal Damage Control Association No. 45 August, 1984
HR 1797, the Anti-trapping Bill
Bureau of Land Management
ASIW Publication SIP 817
Computer Rats
New device on the market that warns "most types of animals" of an approaching vehicle.
Office of Management and Budget
Letters to Ye Ed
ADC
New Member
Utah prairie dog
Red, Eastern and Western Gray Kangaroos
Rabies
Skunks

Toxicological Studies On Aquatic Contaminants Originating From Coal Production And Utilization: The Induction Of Tolerance To Silver In Laboratory Populations Of Fish And The Chronic Toxicity Of Nickel To Fish Early Life Stages, Wesley J. Birge, Jeffrey A. Black, James F. Hobson, Albert G. Westerman

KWRRI Research Reports

Aquatic toxicity studies were performed on two important coal-derived contaminants, silver and nickel. Silver was investigated with regard to metal-induced tolerance in laboratory populations of the fathead minnow (Pimephales promelas). Fish were exposed to acute silver concentrations following acclimation to sublethal exposures of this metal. Based on median lethal times (LT50), animals which had received 14 days prior exposure to 1.5 and 15 μg Ag/L were three to four times more resistant to silver than were previously unexposed organisms. This metal-induced resistance was not a sustained response. After organisms which had been acclimated to 15 μg/L had been transferred to …

Impact Assessment Of Coal Slurry Pipelines On Water Resources Utilization And Allocation, Muhammad Najmus Saquib, M. Levent Kavvas, David T. Kao, Lindell E. Ormsbee

KWRRI Research Reports

Pike county, the largest coal producing and exporting county from the state of Kentucky was studied to assess the impact of a possible coal slurry pipeline project on the water resources allocation and utilization in the region. Potential coal slurry pipelines from the region were identified and water requirement for operating several hypothetical pipelines were computed by using a recently developed computer program. Climatological data for the county were collected and analyzed for a 29-year period of record with a view to determining the monthly net consumptive use in the region. Available groundwater data for the region was also collected …

A Study Of Alternative Sites For Equestrian/Hobby Farm Development In The Karratha Area, Bernard Kok

Resource management technical reports

This report has been prepared in response to a request from the Shire of Roebourne to assess the land use capabilities for equestrian/hobby farm development in the Karratha area.The report comprises five parts; a brief review of the areas climate,discussion of the geological soil units and vegetation, water supply, alternative areas of development and recommendations.

Identification Of Soil-Water Chemical Parameters For The Prediction And Treatment Of Suspended Solids In Surface Water Reservoirs Of Coal Mine Lands, V. P. Evangelou, J. H. Grove, R. I. Barnhisel

KWRRI Research Reports

High concentrations of suspended solids in coal mine sedimentation ponds are a factor in lowering water quality. This study focuses on the influence dissolved solids have on concentration and settling of suspended solids. Water samples from sedimentation ponds in Eastern and Western Kentucky were used to evaluate water composition in such ponds. Spoil samples from surface mine sites in both parts of the state were used to evaluate water composition released from the spoils upon introducing water.

The results demonstrate that water quality emanating from coal spoils of Eastern and Western coal mines is dependent on the type of spoil …

Water Current, Volume 16, No. 4, July/August 1984

Water Current Newsletter

Director's Report
Summary of UCOWR Annual Meeting
Symposium on Multiobjective Optimization
Groundwater Research Possibilties Explored
Nebraska Water Conference Council Fall Meeting
Research Review: Tillage Practice Effects on Water Conservation and the Efficiency and Management of Surface Irrigation Systems
NARD Annual Meeting

Research Note: Pcbs In The Acushnet River Estuary, Jacek Sulanowski

Bridgewater Review

Much media attention has recently been devoted to potentially toxic substances disseminated throughout various components of the environment. In almost every case these substances had been manufactured and distributed under the assumption that they did not pose a threat to man. Indeed when tested by methods current at the time of their initial introduction the substances were considered benign. It was only later when technologically advanced and more sensitive methods of analyses were developed that the presence of these substances was considered to be of real concern. Unfortunately, in the interval between introduction and detection, the accumulation of these substances …

Wetlands Preservation And The Protection Of Endangered Species As Limits On Western Water Development, A. Dan Tarlock

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

25 pages.