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Articles 47281 - 47310 of 52464
Full-Text Articles in Physical Sciences and Mathematics
Utah Water Research Laboratory, Utah Center For Water Resources Research, A Program Overview, L. Douglas James, Donna H. Falkenborg
Utah Water Research Laboratory, Utah Center For Water Resources Research, A Program Overview, L. Douglas James, Donna H. Falkenborg
Reports
Organization of Prepared Material: This overview presents the water resources research program administered through the Utah Water Research Laboratory and the Utah Center for Water Resources Reserach. The document is prepared for an internal review by a faculty team organized by the Administration of Utah State university and an external review by a team organized by the U.S. Geological Survey as part of a national effort to evaluate the water research centers in every state over a 2-year period. These materials are prepared to stimulate discussion and spark innocative ideas for building an even stronger program. The UWRL/UCWRR administration sees …
Economic Evaluation Of Conservation Concepts For Municipal Water Systems, Trevor C. Hughes, Rangesan Narayanan, Mac Mckee, A. Bruce Bishop, Robert Leconte, Sumani Al-Hassan
Economic Evaluation Of Conservation Concepts For Municipal Water Systems, Trevor C. Hughes, Rangesan Narayanan, Mac Mckee, A. Bruce Bishop, Robert Leconte, Sumani Al-Hassan
Reports
Five concepts for conservation of municipal water supply are analyzed from an economic efficiency perspectice. They include: 1) seasonal pricing (for reduction of peak period water use), 2) dual water systems (separate high quality drinking water and untreated outdoor irrigation systems), 3) imported water transmission facility capacity optimization, 4) flow restricting devices, and 5) short-term rationing concepts. Optimization models, including generalized model generators, were developed for analysis of the first three concepts and demonstrated by applications to cities in Utah. The flow restricting device and short-term rationsing concept analyses applied approaches taken from the literature to example sites in Utah. …
Evaluation Of Volatilization Of Hazardous Constituents At Hazardous Waste Land Treatment Sites, R. Ryan Dupont, J. A. Reineman
Evaluation Of Volatilization Of Hazardous Constituents At Hazardous Waste Land Treatment Sites, R. Ryan Dupont, J. A. Reineman
Reports
The magnitude and extent of volatile organic emissions from hazardous waste land treatment systems were evaluated in laboratory and field studies using complex petroleum refining hazardous wastes. Laboratory experiments were conducted using two soils and a intert construction sand to investigate the emission flux rates of seven volatile constituents, i.e., benzene, toluene, ethylbenzene, p-, m-, o-xylene, and naphthalene, from API Separatory Sludge and Slop Oil Emulsion Solids wastes in column and flask laboratory units as a function of waste application rate, application method (surface versus subsurface), soil type and soil physical characteristics. Field experiemtns were conducted at an active petroleum …
Analysis Of The Charleston, Illinois Water Supply For The Presence Of Organic Mutagens Utilizing The Ames Salmonella/Microsome Assay, Steven Lee Washburn
Analysis Of The Charleston, Illinois Water Supply For The Presence Of Organic Mutagens Utilizing The Ames Salmonella/Microsome Assay, Steven Lee Washburn
Masters Theses
Water samples from the Charleston, Illinois water supply and selected agricultural run-off areas were tested for the presence of organic mutagenic chemicals. The Ames Salmonella/microsome mutagenicity assay utilizing strains TA98 and TA100 was used to analyze concentrated water samples. A special set of samples was exposed to the S9 activation system coupled with the TA98 strain to simulate the mammalian metabolic system.
No mutagens were detected in any of the samples tested. Several positive and negative control systems were included in the testing system. Negative control systems were used to determine the average spontaneous reversion rates for each strain for …
Recommendations For Amelioration Of Legal And Environmental Concerns About Mining Of Deepsea Deposits Of Polymetallic Sulfides, Michael P. De Luca
Recommendations For Amelioration Of Legal And Environmental Concerns About Mining Of Deepsea Deposits Of Polymetallic Sulfides, Michael P. De Luca
Dissertations, Theses, and Masters Projects
No abstract provided.
An Assessment Of Hybrid Poplar Biomass Plantations For Ontario, Peter Caleb Sturrup
An Assessment Of Hybrid Poplar Biomass Plantations For Ontario, Peter Caleb Sturrup
Theses and Dissertations (Comprehensive)
The search for an alternative to oil dominated political and economic thinking during the 1970’s and continues in this decade. In Ontario, one such alternative is methanol, which could possibly be supplied in large quantities from hybrid poplar biomass plantations. While the nature of these plantations has been debated at greath length, the exact quantity and location of land that could be available for plantations in Ontario has not been identified.
Using the Land Evaluation Model (LEM 2) developed at the University of Guelph an inventory of the land resources and the resulting land use patterns is determined. Throughout the …
Hydrocarbon Levels In Tampa Bay Final Report, Larry J. Doyle, Edward S. Van Vleet, William M. Sackett, Norman J. Blake, Gregg R. Brooks
Hydrocarbon Levels In Tampa Bay Final Report, Larry J. Doyle, Edward S. Van Vleet, William M. Sackett, Norman J. Blake, Gregg R. Brooks
Reports
The primary purpose of this project was to establish and characterize, as far as possible, hydrocarbon base levels for the Tampa Bay Estuary. In addition, we were to characterize 1) hydrocarbon molecular compositions, 2) the isotopic composition of total and lipid sediment organic carbon, and 3) evaluate the potential for utilizing isotopic analyses to quantify and determine the extent of future oil spills.
A Brief Chronology Of Some Events Related To Cancellation/Suspension Of The Predacides (Compound 1080, Strychnine, Sodium Cyanide) By The Environmental Protection Agency In 1972 And Ensuing Actions By Federal And State Agencies., Dale A. Wade
Great Plains Wildlife Damage Control Workshop Proceedings
Covers 1964-1986
Wildlife In Texas: Marketing Potential And The Significance Of Wildlife Damage, Milo J. Shult
Wildlife In Texas: Marketing Potential And The Significance Of Wildlife Damage, Milo J. Shult
Great Plains Wildlife Damage Control Workshop Proceedings
This is a challenging topic to discuss, and I would first like to review some things which are unique to Texas with respect to wildlife populations. These concern the importance of wildlife from a commodity standpoint Then I would like to delve into some areas which tend to be a little more philosophical and focus on the impacts of total wildlife management, including wildlife damage control. Historically in our nation, wildlife has had ups and downs; there are a number of success stories in terms of management but also some obvious failures. I would like to be positive today concerning …
Current Status And Potential Registrations Of Compound 1080 And Strychnine For Rodent Control, Lyle A. Crosby
Current Status And Potential Registrations Of Compound 1080 And Strychnine For Rodent Control, Lyle A. Crosby
Great Plains Wildlife Damage Control Workshop Proceedings
On December 1, 1976, the Environmental Protection Agency applied Section 6 of the Federal Insecticide, Fungicide, and Rodenticide Act, "Administrative Review", in determining that the use of products containing strychnine, for above ground application to control several rodent species, met specific cancellation criteria outlined in 40 CFR 162.11. Position Document 4 (the final Agency decision), published on September 30, 1983, proposed to cancel registrations of strychnine products for above ground use to control prairie dogs and required label modification for confined use on ground squirrels. The final decision was challenged by several parties who requested a formal hearing which was …
Beaver Problems Associated Wtth Conservation Activities, Ed M. Schwille
Beaver Problems Associated Wtth Conservation Activities, Ed M. Schwille
Great Plains Wildlife Damage Control Workshop Proceedings
As far back as 1935, the U.S. Department of Agriculture, Soil Conservation Service (SCS) began providing technical assistance to private landowners to build ponds and small lakes. To date in Texas, over 500,000 structures of this type have been built. During the 1940's, the SCS started construction of Watershed Protection and Flood Control Impoundments in Texas. These flood prevention structures number about 1,900. Other programs have brought about construction of over 16,000 grade stabilization structures (GSS) for erosion control. Numerous ponds and lakes have been built without any help from the SCS over the years. All of these impoundments store …
Alligator Nuisance Control Program In Texas: Problem And Process, Lee Ann Johnson, David S. Lobpries, Bruce G. Thompson
Alligator Nuisance Control Program In Texas: Problem And Process, Lee Ann Johnson, David S. Lobpries, Bruce G. Thompson
Great Plains Wildlife Damage Control Workshop Proceedings
Following protection of the American alligator (Alligator mississippiensis) in Texas beginning in 1969, alligator numbers have increased rapidly (Patter 1981). Such population increases led to the federal reclassification of the species from Endangered to Threatened--Similarity of Appearance in 1983 in Texas (Bowman 1983). Similarity of appearance classification acknowledges the biological security of the Texas alligator population and the need for specific harvest controls to ensure that the conservation of similar appearing species is not compromised.
Preliminary Studies On The Feasibility Of Urban Rabies Control, Richard C. Rosatte
Preliminary Studies On The Feasibility Of Urban Rabies Control, Richard C. Rosatte
Great Plains Wildlife Damage Control Workshop Proceedings
A preliminary investigation was initiated in 1984 to determine the feasibility of an urban rabies control strategy which involved capturing, vaccinating and releasing skunks and raccoons in metropolitan Toronto, Ontario. Results indicate urban skunks and raccoons are utilizing extremely small home ranges and their movements are not extensive. Trapping data suggested a large proportion of the population of skunks and raccoons in the study area were captured during the first 4 nights of trapping. Capture data also indicated the presence of new animals in the study areas between trapping periods. The 3 study areas, which differed in human land-use classification, …
Furbearer Management And The Steel Foothold Trap, Samuel B. Linhart
Furbearer Management And The Steel Foothold Trap, Samuel B. Linhart
Great Plains Wildlife Damage Control Workshop Proceedings
The trapping of furbearers, particularly with steel foothold traps, has become more and more controversial. The controversy is significant because the steel trap is considered the most versatile of the various methods available for capturing furbearers (Payne 1980). Whether traps are used to reduce livestock losses by predators or to harvest furs, the controversy has gained the attention and interest of various social factions, each with differing beliefs, attitudes, and philosophies.
Preliminary Field Evaluation Of A New Formulation Of Rozol ( Chlorophacinone ) Bait Against Pocket Gophers In Colorado, John A. Baroch, Richard M. Poche
Preliminary Field Evaluation Of A New Formulation Of Rozol ( Chlorophacinone ) Bait Against Pocket Gophers In Colorado, John A. Baroch, Richard M. Poche
Great Plains Wildlife Damage Control Workshop Proceedings
Mountain pocket gophers (Thomomy's talpoides) and plains pocket gophers (Geomys bursarius) are a problem to rangelands in Colorado. A new chlorophacinone (50 ppm) pelleted bait was applied to active burrow systems by hand baiting. Efficacy on the Geomys plot was 100%, while 94.73% of the Thomomys were controlled with the product.
Coyote Vulnerability To Several Management Techniques, Frederik F. Knowlton, Lamer A. Windberg, Cram E. Wahlgren
Coyote Vulnerability To Several Management Techniques, Frederik F. Knowlton, Lamer A. Windberg, Cram E. Wahlgren
Great Plains Wildlife Damage Control Workshop Proceedings
We appreciate this opportunity to present a brief synopsis of a complex field study recently completed near Laredo, Texas. It provides a preliminary assessment of differences in coyote vulnerability to several management tools At this point, our analyses are incomplete and interpretations are tentative, at best nonetheless, the data provide some insights and a basis for speculations and questions about coyote behavior, population processes, and the logistics of coyote population reduction. This research was sponsored by the U.S. Fish and Wildlife Service (through the Predator Ecology and Behavior Project) and the Caesar Kleberg Wildlife Research Institute, with generous assistance from …
Seventh Great Plains Wildlife Damage Control Workshop Proceedings, Daniel B. Fagre
Seventh Great Plains Wildlife Damage Control Workshop Proceedings, Daniel B. Fagre
Great Plains Wildlife Damage Control Workshop Proceedings
Table of contents
Efficacy And Farmer Acceptance Of Nonlethal Control Of Blackbird Depredations To Small Grain Crops, Albert E. Bivings
Efficacy And Farmer Acceptance Of Nonlethal Control Of Blackbird Depredations To Small Grain Crops, Albert E. Bivings
Great Plains Wildlife Damage Control Workshop Proceedings
In 1980, Congress responded to complaints of migratory bird damage to grain crops, principally rice, with added funding for enhanced Animal Damage Control (ADC) programs in Arkansas and Louisiana. This resulted in the establishment of an office in Stuttgart, Arkansas and a similar office in Crowley, Louisiana. Enabling legislation specifically directs the principal focus to be on rice/blackbird conflicts. This paper will present a review of the problems addressed in Arkansas, techniques utilized and the author's assessment of their efficacy and acceptability.
Coyote Vulnerability To Several Management Techniques, Frederick F. Knowlton, Lamer A. Windberg, Cram E. Wahlgren
Coyote Vulnerability To Several Management Techniques, Frederick F. Knowlton, Lamer A. Windberg, Cram E. Wahlgren
Great Plains Wildlife Damage Control Workshop Proceedings
We appreciate this opportunity to present a brief synopsis of a complex field study recently completed near Laredo, Texas. It provides a preliminary assessment of differences in coyote vulnerability to several management tools At this point, our analyses are incomplete and interpretations are tentative, at best Nonetheless, the data provide some insights and a basis for speculations and questions about coyote behavior, population processes, and the logistics of coyote population reduction. This research was sponsored by the U.S. Fish and Wildlife Service (through the Predator Ecology and Behavior Project) and the Caesar Kleberg Wildlife Research Institute, with generous assistance from …
Preliminary Field Evaluation Of A New Formulation Of Rozol (Chlorophacinone) Bait Against Pocket Gophers In Colorado, John Baroch, Richard M. Poche
Preliminary Field Evaluation Of A New Formulation Of Rozol (Chlorophacinone) Bait Against Pocket Gophers In Colorado, John Baroch, Richard M. Poche
Great Plains Wildlife Damage Control Workshop Proceedings
Mountain pocket gophers (Thomomys talpoides) and plains pocket gophers (Geomys bursarius) are a problem to rangelands in Colorado. A new chlorophacinone (50 ppm) pelleted bait was applied to active burrow systems by hand baiting. Efficacy on the Geomys plot was 100%, while 94.73% of the Thomomys were controlled with the product.
Incidence And Significance Of G I Ardia Lamblia ( Lambl) In Texas Beaver Populations, Robert Beach, William F. Mcculloch
Incidence And Significance Of G I Ardia Lamblia ( Lambl) In Texas Beaver Populations, Robert Beach, William F. Mcculloch
Great Plains Wildlife Damage Control Workshop Proceedings
The Giardia lamblia (Lambl) protozoan is not a recently discovered parasite. It was. in fact, one of the first organisms viewed and described by Antony van Leeuwenhoek (1681) as he designed the first usable microscope. Leeuwenhoek found this organism in a sample of his own diarrhetic stool and thus he constitutes the first confirmed case of human giar- His finding represents proof of glardiasis! close association with man for many years. LecuwenhoeW discovery of the giardial trophozotte was not elaborated on for some 178 years, however, as it was not until 1859 that Wilhelm D. Jambi systematically described the organism …
Wildlife In Texas: Marketing Potential And The Significance Of Wildlife Damage, Milo J. Shult
Wildlife In Texas: Marketing Potential And The Significance Of Wildlife Damage, Milo J. Shult
Great Plains Wildlife Damage Control Workshop Proceedings
This is a challenging topic to discuss, and I would first like to review some things which are unique to Texas with respect to wildlife populations. These concern the importance of wildlife from a commodity standpoint Then I would like to delve into some areas which tend to be a little more philosophical and focus on the impacts of total wildlife management, including wildlife damage control.
Pesticide Registration In The United States, Dale A. Wade
Pesticide Registration In The United States, Dale A. Wade
Great Plains Wildlife Damage Control Workshop Proceedings
This review provides an abbreviated history of pesticide regulation in the United States, with a summary of the current registration process and exceptions under the authority of the Environmental Protection Agency and the Federal Environmental Pesticide Control Act of 1972, as amended. Issues related to registration are briefly described.
The Extirpation And Re-Establishment Of Coyotes In The Edwards Plateau Of Texas, Gary Nunley
The Extirpation And Re-Establishment Of Coyotes In The Edwards Plateau Of Texas, Gary Nunley
Great Plains Wildlife Damage Control Workshop Proceedings
In the early 1900's organized predator control was initiated to remove coyotes and wolves from the sheep and goat producing areas of Texas. Operations were begun in the Edwards Plateau, the largest area of sheep concentration. By the 1920's, many of the inner Edwards Plateau counties were considered to be practically free of coyotes (Canis latrans) and wolves (Canis lupus, Canis rufus). The 1950's found coyotes and wolves extirpated from most of the Edwards Plateau. After a coyote population erruption in the late 1950's, coyotes began to re-establish themselves on the periphery of the Plateau. This encroachment process continued throughout …
Black-Tailed Prairie Dog Management On The Northern Great Plains New Challenges And Opportunities, Greg L. Schenbeck
Black-Tailed Prairie Dog Management On The Northern Great Plains New Challenges And Opportunities, Greg L. Schenbeck
Great Plains Wildlife Damage Control Workshop Proceedings
Implications of new information and several recent developments to the management of black-tailed prairie dogs (cynomys ludovicianusl on the northern plains are discussed. Of primary importance is the need to conduct management programs that are as cost-effective as possible and responsive to the concerns of private land interests. Research findings indicate that cost-effectiveness can be improved by combining rodenticide use with changes in livestock grazing practices to reduce habitat suitability for prairie dogs. Other research suggests that reduced concentrations of Compound 1080 for prairie dog control warrants continued scientific evaluation. If reduced concentrations of 1080 could be used effectively and …
Efficacy And Farmer Acceptance Of Nonlethal Control Of Blackbird Depredations To Small Grain Crops, Albert E. Bivings
Efficacy And Farmer Acceptance Of Nonlethal Control Of Blackbird Depredations To Small Grain Crops, Albert E. Bivings
Great Plains Wildlife Damage Control Workshop Proceedings
In 1980, Congress responded to complaints of migratory bird damage to grain crops, principally rice, with added funding for enhanced Animal Damage Control (ADC) programs in Arkansas and Louisiana. This resulted in the establishment of an office in Stuttgart, Arkansas and a similar office in Crowley, Louisiana. Enabling legislation specifically directs the principal focus to be on rice/blackbird conflicts. This paper will present a review of the problems addressed in Arkansas, techniques utilized and the author's assessment of their efficacy and acceptability.
Use Of Video Tapes In Wildlife Damage Extension - Education, F. Robert Henderson, Bart Hettenbach
Use Of Video Tapes In Wildlife Damage Extension - Education, F. Robert Henderson, Bart Hettenbach
Great Plains Wildlife Damage Control Workshop Proceedings
The purpose of this paper is to report on a telephone survey to 15 professional wildlife damage control workers in 9 of the 10 Great Plains states. North Dakota was the only state that was not contacted.
The Use Of Population Reduction As A Technique To Combat Rabies In Alberta, Canada, Richard C. Rosatte
The Use Of Population Reduction As A Technique To Combat Rabies In Alberta, Canada, Richard C. Rosatte
Great Plains Wildlife Damage Control Workshop Proceedings
Control of rabies by reducing the density of potential vectors has been a controversial matter. Only 2 outbreaks of rabies in Europe are likely to have been completely eradicated by control, 1 in Dijon, France, in 1923, and the other in Corsica in 1943 (MacDonald 1980). Schnurrenberger et aL (1964) apparently controlled an outbreak of rabies in striped skunks (Mephitis mephitis) in Ohio by gassing dens and through the use of poison. An invasion of red fox (Vulpes vulpesl rabies in southern Jutland from Demark was initially halted by a gassing and poisoning campaign. However, in Great Britain, despite the …
Aggressive Behavior Of Mississippi Kites In Suburban Areas, Berkeley R. Peterson, Charles S. Brown
Aggressive Behavior Of Mississippi Kites In Suburban Areas, Berkeley R. Peterson, Charles S. Brown
Great Plains Wildlife Damage Control Workshop Proceedings
The Mississippi Kite is a small diurnal bird of prey which nests throughout the southern Great Plains. Its aggressive behavior during nesting has created problems for residents in suburban areas. The removal of the nest and relocation of the eggs and young will end the attacks by the parent birds. The eggs are incubated and the resulting young, as well as other young removed from problem nests, are then placed in foster nests in more remote areas.
Big Game Depredations And Damage Compensation In Wyoming, John R. Demaree
Big Game Depredations And Damage Compensation In Wyoming, John R. Demaree
Great Plains Wildlife Damage Control Workshop Proceedings
The Wyoming Game and Fish Department is responsible for controlling depredations by big game, trophy game, and game birds. Under certain guidelines landowners can submit a claim to the department for compensation from wildlife depredations. Measures used by department personnel to prevent wildlife damage are the use of scare devices, harassment techniques, repellents, fencing, trapping, issuing of kill permits, and modifying hunting seasons. In evaluating the damage to estimate monetary losses, sources of information used include AUM's, consumptive rates, fecal analysis, enclosures, production records, and necropsies. In terms of depredation compensation, the most costly species to the department over the …