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Articles 48421 - 48450 of 52448
Full-Text Articles in Physical Sciences and Mathematics
Volume 5, Number 12 (December 1981), The Solar Ocean Energy Liaison
Volume 5, Number 12 (December 1981), The Solar Ocean Energy Liaison
The OTEC Liaison
No abstract provided.
Monthly Planet, 1981, December, Jim Springer, Huxley College Of The Environment, Western Washington University
Monthly Planet, 1981, December, Jim Springer, Huxley College Of The Environment, Western Washington University
The Planet
No abstract provided.
A Salt And Water Balance Model For A Silt Loam Soil Cropped To Rice And Soybean, J. T. Gilmour, J. A. Ferguson, B. R. Wells
A Salt And Water Balance Model For A Silt Loam Soil Cropped To Rice And Soybean, J. T. Gilmour, J. A. Ferguson, B. R. Wells
Technical Reports
A computer model was developed which described salt and water balances for a silt loam soil common to the Grand Praire physiographic region of Arkansas. A ten year period of weather data (1966-75) was used as input data for two divergent cases in regard to salt accumulation. Case one was a rice-soybean rotation with soybean irrigated, while case two was a rice-soybean-soybean rotation with soybean not irrigated. Salts considered were calcium, magnesium, sodium, sulfate and chloride as well as the precipitate, calcium carbonate. Where soybeans were not irrigated less evapotranspiration, more infiltration and less runoff were observed during the fallow …
Radionuclides In Dardanelle Lake In The Area Of The Nuclear I Facility: 1979-1981, D. M. Chittenden Ii
Radionuclides In Dardanelle Lake In The Area Of The Nuclear I Facility: 1979-1981, D. M. Chittenden Ii
Technical Reports
The variations of the concentrations of 90Sr and 137Cs at four stations in Dardanelle Reservoir were analyzed as functions of two parameters: concentration of ionic species and the activity released, Ar, from the two 900 Mw reactors which use the reservoir as a source of cooling water. Multiple regression analyses were performed on the radionuclide concentrations using the two parameters as predictors. The analyses indicated that 90Sr is in a state of equilibrium between the solution and the suspended sediment. The position of the equilibrium was found to be quite sensitive to changes in the concentration of alkaline earth cations, …
Water Current, Volume 13, No. 6, November/December 1981
Water Current, Volume 13, No. 6, November/December 1981
Water Current Newsletter
Water Seminars Start in January
UNL Coordinates Three University Study of 1976-77 Drought Relief Program
1980 River Basin Proceedings Published
Water Planning Update
NWRC Staffer Now Fellow at UNL Great Plains Center
Research Review: Distribution of Nitrogen Under Native Range Cultivated Fields in the Nebraska Sandhills
Nebraska Could Add Muscle to Interstate Water Negotiations
Laws Prevent Use of Permit System in Nebraska's Sandhills
Fischbach Predicts Irrigation Scheduling Will Catch On
Comments Wanted on Newsletter Format
Volume 5, Number 11 (November 1981), The Solar Ocean Energy Liaison
Volume 5, Number 11 (November 1981), The Solar Ocean Energy Liaison
The OTEC Liaison
No abstract provided.
Monthly Planet, 1981, November, Jim Springer, Huxley College Of The Environment, Western Washington University
Monthly Planet, 1981, November, Jim Springer, Huxley College Of The Environment, Western Washington University
The Planet
No abstract provided.
The Probe, Issue 17 - November 1981
The Probe, Issue 17 - November 1981
The Probe: Newsletter of the National Animal Damage Control Association
THE PROBE National Animal Damage Control Association November, 1981
It is now time to pay your dues.
Bats roosting in an attic can provide a free and easy way to keep a house warm in winter.
THE NO ANTIDOTE 1080
ORCHARD MOUSE CONTROL
The highly publicized "Adopt-a-Horse" program of the FRIENDS UF ANIMALS that was foisted on the Bureau of Land Management (BLM) is undergoing reevaluation.
NADCA ANNUAL MEETING
ASTM SYMPOSIUM ANNOUNCEMENT
WILDLIFE MANAGEMENT ON PUBLIC LANDS
Cats won't chase birds at the bird feeder if you feed the birds lemon-scented bird seed.
The killing of the three-year old by …
A Benefit Cost Analysis Of A Soil Erosion Control Program For The Northern Watershed Of Lake Chicot, Arkansas, C. Tim Osborn, Alan D. Mcqueen, Robert N. Shulstad
A Benefit Cost Analysis Of A Soil Erosion Control Program For The Northern Watershed Of Lake Chicot, Arkansas, C. Tim Osborn, Alan D. Mcqueen, Robert N. Shulstad
Technical Reports
Lake Chicot, a 5,025-acre oxbow lake created by the ancient meandering of the Mississippi River, is located near the town of Lake Village in Chicot County of southeastern Arkansas (Fig. 1). Today the lake is separated into a northern basin of 1,154 acres and a southern basin of 3,871 acres by a levee maintained by the Arkansas Game and Fish Commission (Fig. 2). The entire lake once offered excellent fishing and recreational benefits. But with channelization in the drainage basin and final closure of the Cypress Creek gap along the Mississippi River levee in 1920, drainage and flood waters from …
Characterization Of La Verkin Springs Water And Methods For Its Reuse In Energy Development, United States Department Of The Interior, Bureau Of Reclamation
Characterization Of La Verkin Springs Water And Methods For Its Reuse In Energy Development, United States Department Of The Interior, Bureau Of Reclamation
Water
Analytical water data obtained from a 9-month test program at the LVS (LaVerkin Springs) site, which is located in Washington County, Southwestern Utah, were evaluated. Fresh water and the water after processing through various pretreatment steps and after ED (electrodialysis) desalting and by desalting processes was demonstrated by the LVS site test program. The relative merit of different methods of treatment, disposal, and reuse of LVS water were studied. The objectives of the study were to evaluate methods for preventing high salinity LVS water from entering the Virgin River and for utilizing the processed water in energy development. The disposal …
John Muir Newsletter, November 1981, Holt-Atherton Pacific Center For Western Studies
John Muir Newsletter, November 1981, Holt-Atherton Pacific Center For Western Studies
Muir Center Newsletters (1981-2015)
Holt-Atherton Pacific Center for Western Studies *_~fc~_j«t-fc University of the Pacific Stockton, Calif 95211 VOLUME 1 .NOVEMBER 1981 NUMBER 5 EDITORIAL STAFF: RONALD H. LIMBAUGH. JANICE D. MAGDICH URGENT URGENT- .—-URGENT ■ URGENT 'We have just received word from the Coalition to Save our Documentary Heritage that Congress will act within the next few days on an appropriations bill(H.R. Ul2l) for the National Archives which includes an earmarked amount of "up to" three million dollars for the National Historical Publications and Records Commission, the funding agency for the John Muir Microform Project. Since each side has proposed separate legislation, a …
Fifth Great Plains Wildlife Damage Control Workshop: Proceedings -- Frontmatter And Contents
Fifth Great Plains Wildlife Damage Control Workshop: Proceedings -- Frontmatter And Contents
Great Plains Wildlife Damage Control Workshop Proceedings
WORKSHOP CHAIRPERSONS
Ron J. Johnson — Extension Wildlife Specialist, Department of Forestry, Fisheries and Wildlife, University of Nebraska - Lincoln
Robert M. Timm - - Extension Vertebrate Pest Specialist, Department of Forestry, Fisheries and Wildlife, University of Nebraska - Lincoln
POSTER SESSION CHAIRPERSON
Ronald M. Case — Professor, Department of Forestry, Fisheries and Wildlife, University of Nebraska - Lincoln
PANEL AND SESSION CHAIRPERSONS
William D. Fitzwater — Director, bioLOGIC Consultants, Albuquerque, New Mexico
Roger E. Gold — Coordinator, Environmental Programs, University of Nebraska - Lincoln
Walter E. Howard — Professor and Ecologist, Wildlife and Fisheries Biology, University of California, Davis …
Efficacy And Costs Of Four Rodenticides For Controlling Columbian Ground Squirrels In Western Montana, Steven W. Albert, C. Raymond Record
Efficacy And Costs Of Four Rodenticides For Controlling Columbian Ground Squirrels In Western Montana, Steven W. Albert, C. Raymond Record
Great Plains Wildlife Damage Control Workshop Proceedings
Efficacy and costs of four rodenticides for the control of Columbian ground squirrels were compared in western Montana. Reductions in surface ground squirrel activity and costs per 100 burrows treated for the various treatments were: 1080 oat groats 99.6%-$3.11, gas cartridges 72.2%-$26.57, strychnine oats 64.2%-$3.06, zinc phosphide cabbage 60.9%-$8.48, zinc phosphide oats 41.3%-$3.15, and strychnine cabbage 14.4%-$9.58. Surface deaths associated with 1080 amounted to 2.35 ground squirrels per 100 burrows treated. Above ground death rates for the remaining treatments were negligible or nonexistent for both target and non-target species. One white-footed deer mouse was found dead on the strychnine cabbage …
Bird-Vectored Diseases, P.M. Gough, J.W. Beyer
Bird-Vectored Diseases, P.M. Gough, J.W. Beyer
Great Plains Wildlife Damage Control Workshop Proceedings
Although property damage and losses can be inflicted by wild birds throughout the entire year, avian-vectored diseases of livestock are primarily a winter phenomenon in the Great Plains states. Reasons for this include the following: (1) During the winter season the birds congregate in flocks of sufficient size to be of epidemiologic significance. (2) There is a high degree of interaction between birds and livestock only when limited food induces the birds to forage among confined animals and when adverse weather forces the birds to seek shelter in housing units for livestock. (3) Colder temperatures increase the time of survival …
Outwitting The House Sparrow [Passer Domesticus (Linnaeus)], William D. Fitzwater
Outwitting The House Sparrow [Passer Domesticus (Linnaeus)], William D. Fitzwater
Great Plains Wildlife Damage Control Workshop Proceedings
With the decline of house sparrow populations during the first quarter of this century, control research attention shifted to other avian species so little new is available on either life history studies or management. Solutions to animal damage control problems are generally through (1) environmental controls, (2) protection of crops and/or sites, and (3) population reduction. In the case of sparrow problems, environmental controls are of limited application as the birds prefer the habitat modifications made by man. Protection of crops or sites relies on repellents which are generally ineffective against this particular species. The only viable population level controls …
Ipm - An Overview, R.E. Gold
Ipm - An Overview, R.E. Gold
Great Plains Wildlife Damage Control Workshop Proceedings
Integrated Pest Management (IPM) is a term that is widely used, but little understood. The Federal Interagency IPM Coordinating Committee adopted the description of IPM as "a systems approach to reduce pest damage to tolerable levels through a variety of techniques, including predators and parasites, genetically resistant hosts, natural environmental modifications and, when necessary and appropriate, chemical pesticides." Essentially, the ultimate goal of IPM programs is to reduce pest populations to "tolerable levels". This may be a departure from more traditional approaches to pest control that advocated the elimination or eradication of pest populations. Another postulate of IPM is that …
Pyrotechnics For Bird Control, Geral L. Long
Pyrotechnics For Bird Control, Geral L. Long
Great Plains Wildlife Damage Control Workshop Proceedings
It is a little disputed fact that each year birds cause damage through crop depredation, roosting activities, and bird/aircraft strike damage with occasionally associated loss of life . Stephen (1961) cites an article by Elkins (1957) which said ducks cause millions of dollars of loss to barley, oats, and wheat crops in Canadian prairies. Damage to ripening cereal grain crops in the western United States is one of the most widespread bird problems (DeGrazio 1964). Zajanc (1962) reports these losses are estimated at $15 million annually in three western states alone where blackbirds feed in fields of rice, corn, small …
Future Of Pesticides In Vertebrate Pest Control, Rex E. Marsh
Future Of Pesticides In Vertebrate Pest Control, Rex E. Marsh
Great Plains Wildlife Damage Control Workshop Proceedings
The present state-of-the-art provides little information which would lead to the conclusions that animal damage control will take a new direction away from chemicals. Hence, vertebrate pesticides whether toxicants or repellents will remain essential components of integrated pest management programs. The future of vertebrate pesticides is far from being bright, but current developments offer some good reasons to remain optimistic. The various factors which influence the development of new vertebrate pesticides (principally rodenticides) are discussed along with projections of stable as well as changing trends. Speculation on the future of vertebrate pesticides may provide tentative directions for some and forecast …
Opening Comments And Extension's Role In Nebraska, Leo E. Lucas
Opening Comments And Extension's Role In Nebraska, Leo E. Lucas
Great Plains Wildlife Damage Control Workshop Proceedings
I would like to echo Dr. Massengale's comments in welcoming you to Nebraska. We are pleased to have you here. Nebraska is a major agricultural state. Ninety-seven percent of the land is privately owned and most of it is in agricultural production of one type or another. Nebraska ranks fifth in total receipt sales of Ag products. Nebraska ranks second in the nation in numbers of cattle on feed, fourth in cash receipts from all livestock marketing, first in production of great northern beans, popcorn and alfalfa meal, and fourth in corn production. Agriculture is important to the state's economy.
L:Egal Problems Of Bird Damage Control - Protected Species And Practical Solutions, Ronald D. Ogden
L:Egal Problems Of Bird Damage Control - Protected Species And Practical Solutions, Ronald D. Ogden
Great Plains Wildlife Damage Control Workshop Proceedings
Legal problems in bird damage control can occur from two directions. First, most birds are protected by federal law; all birds are protected by some states and all birds can be protected by local governing agencies. Second, the method of control may be restricted by state or local governments. Some states require permits to use toxicants; shooting is prohibited in some areas by local government. The only practical solution is to know the federal and state regulations pertaining to each individual project and to check each time with local agencies for further restrictions. A federal permit is required to trap …
Computers And Vertebrate Pest Control, Terrell P. Salmon, Dennis C. Stroud, Aileen Kennedy
Computers And Vertebrate Pest Control, Terrell P. Salmon, Dennis C. Stroud, Aileen Kennedy
Great Plains Wildlife Damage Control Workshop Proceedings
Computers are affordable and usable by most individuals involved in vertebrate pest control. Their value as a research tool for vertebrate pest population modeling has been proposed; however, few, if any, are being used for field operations. Despite their ecological limitations, simulating models have been developed that are useful in wildlife management, including wildlife pest problems. Improvement of these or similar models could answer questions such as population effects from a control program, proper timing of control, and the impact of control on non-target species. Vertebrate pest control information can also be stored, retrieved and disseminated via the computer. The …
A Vertebrate Ipm Project In Nebraska, Robert M. Timm
A Vertebrate Ipm Project In Nebraska, Robert M. Timm
Great Plains Wildlife Damage Control Workshop Proceedings
An Integrated Pest Management project in Nebraska is assisting farmers, particularly pork producers, in controlling damage caused by Norway rats, house mice, house sparrows, and starlings. This extension program also provides information on control of pocket gophers in alfalfa and on rangelands. Integrated control recommendations include rodent- and bird-proof construction, limitation of food and shelter, traps, and toxicants (rodenticides and avicides). The project is attempting to gather data on economic damage, including structural damage to confinement buildings, caused by these pests. This information will be used to assist producers in deciding when to initiate control.
Fifth Great Plains Wildlife Damage Control Workshop, Robert M. Timm, Ron J. Johnson
Fifth Great Plains Wildlife Damage Control Workshop, Robert M. Timm, Ron J. Johnson
Great Plains Wildlife Damage Control Workshop Proceedings
Proceedings Fifth Great Plains Wildlife Damage Control Workshop Contents
Poster Session Abstracts
Great Plains Wildlife Damage Control Workshop Proceedings
Poster Abstracts include:
● FURBEARER TRAPPER-HUNTER EDUCATION IN KANSAS
EDWARD K. BOGGESS and F. ROBERT HENDERSON, Cooperative Extension Service, Kansas State University
● A FLOW CHART FOR HOUSE MOUSE CONTROL
DARYL D. FISHER and ROBERT M. Timm, Department of Forestry, Fisheries and Wildlife, University of Nebraska–Lincoln
● BIRD DRAMAGE CONTROL AND DISPERSAL RECORDINGS
RON J. JOHNSON and ROBERT H. SCHMIDT, Department of Forestry, Fisheries and Wildlife, University of Nebraska–Lincoln
● GROUND SQUIRREL CONTROL IN NEWLY PLANTED GRAlN FIELDS
ANN E. KOLHLER and RON J. JOHNSON, Department of Forestry. Fisheries and Wildlife, University of Nebraska–Lincoln
● WOODPECKER DAMAGE TO HOUSES AND …
Repellents For Deer And Rabbits, Edward K. Boggess
Repellents For Deer And Rabbits, Edward K. Boggess
Great Plains Wildlife Damage Control Workshop Proceedings
Rabbit and deer damage to newly planted trees is a serious problem in many areas of western Kansas and throughout much of the Great Plains. This problem is particularly serious in the establishment of new windbreak and shelterbelt plantings.
U.S. Fish And Wildlife Service Coyote Control Research, Guy Connolly
U.S. Fish And Wildlife Service Coyote Control Research, Guy Connolly
Great Plains Wildlife Damage Control Workshop Proceedings
This paper reviews recent research by the Denver Wildlife Research Center, Section of Predator Management Research, on chemical and lethal coyote control methods. Steel trap modifications, aerial shooting, den hunting, the M-44 (spring-loaded sodium cyanide ejector), toxic and nontoxic baits, the toxic collar, other livestock-borne toxicants, development of new toxicants, and aversive conditioning with lithium chloride are discussed. No new, lethal coyote control method has been implemented into practical use over the past decade, but toxic baits and den hunting were lost or banned from use in the Federal-Cooperative Animal Damage Control Program. One new technique, the toxic collar, may …
A Review Of Prairie Dog Diet And Its Variability Among Animals And Colonies, Kathleen A. Fagerstone
A Review Of Prairie Dog Diet And Its Variability Among Animals And Colonies, Kathleen A. Fagerstone
Great Plains Wildlife Damage Control Workshop Proceedings
After almost 70 years of decline, prairie dog numbers are increasing in many western states. As populations expand, it becomes increasingly important to clarify the degree of competition between prairie dogs and livestock. A review of studies on prairie dog food habits shows variable results. Prairie dogs frequently eat the same plant species as cattle and their activities may cause a decrease in grasses normally considered good livestock forage and an increase in forb cover. However, in some instances, prairie dogs may be beneficial to rangeland; plant species diversity and protein content of forage are often greater on prairie dog …
Prairie Dog Dispersal In Wind Cave National Park: Possibilities For Control, Monte G. Garrett, William L. Franklin
Prairie Dog Dispersal In Wind Cave National Park: Possibilities For Control, Monte G. Garrett, William L. Franklin
Great Plains Wildlife Damage Control Workshop Proceedings
A study was conducted in Wind Cave National Park, South Dakota, to collect basic information on black-tailed prairie dog (Cynomys ludovicianus) dispersal and to test alternative control techniques. Dispersal occurred during a limited time period in late spring, involved both male and female prairie dogs, and resulted in relatively short movements and poor survivorship. The use of artificial visual barriers to inhibit colony expansion was effective but difficult to apply. The use of diethylstilbestrol as a temporary anti-fertility agent was shown to be an easy and effective method to reduce prairie dog reproduction and decrease colony expansion.
Bison Depredation On Grain Fields In Interior Alaska, Philip S. Gipson, Jay D. Mckendrick
Bison Depredation On Grain Fields In Interior Alaska, Philip S. Gipson, Jay D. Mckendrick
Great Plains Wildlife Damage Control Workshop Proceedings
The reported value of grain damaged by bison (Bison bison) may exceed $100,000 annually in the vicinity of Delta Junction, Alaska. This paper reviews the history and present status of bison and their relations to agriculture around Delta Junction. A number of management options are discussed that may reduce conflicts between bison enthusiasts and farmers.
Controlling Problem Pocket Gophers And Moles, F. Robert Henderson
Controlling Problem Pocket Gophers And Moles, F. Robert Henderson
Great Plains Wildlife Damage Control Workshop Proceedings
Two small mammals, pocket gophers and moles, spend most of their lives underground and can cause a lot of concern and frustration to people above ground. The pocket gopher and mole, while engaging in their daily activities, leave their telltale marks on lawns and gardens, on golf courses, parks, cemeteries, and on alfalfa fields and rangelands. Sometimes they damage irrigation canals and dikes and chew into underground cables. They can also create root damage to young trees.