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Articles 48901 - 48930 of 52448
Full-Text Articles in Physical Sciences and Mathematics
Initial Results Of Chemical Inhibitors And Photoperiodic Influences On Growth And Reproduction In Microtus Pennsylvanicus, Jack A. Cranford, David H. Pistole, Terry L. Derting
Initial Results Of Chemical Inhibitors And Photoperiodic Influences On Growth And Reproduction In Microtus Pennsylvanicus, Jack A. Cranford, David H. Pistole, Terry L. Derting
Eastern Pine and Meadow Vole Symposia
Recently Berger et al. (1977) have demonstrated reproductive in¬hibition in Microtus montanus as a result of specific plant compounds in natural vegetation. Naturally occurring cinnamic acids and their related vinyl phenols have been demonstrated to have marked effects on uterine weight, inhibition of follicular development and cessation of breeding activity. Compounds having antigonadotrophic and antithryo-tropic activities have been identified in a wide variety of plants (Chury 1967). Bickoff et al. (1959) report that alfalfa contained a non-estrogenic compound which would over ride the estrogenic effect of the plant estrogen coumestrol. Adler (1962) demonstrated that a non-estrogenic compound in alfalfa could …
Movement Types And Weather Correlates In Free-Ranging Meadow Voles, Dale M. Madison
Movement Types And Weather Correlates In Free-Ranging Meadow Voles, Dale M. Madison
Eastern Pine and Meadow Vole Symposia
Meadow voles (Microtus pennsylvanicus) were radiotracked in their natural environment from June through August 1974, 1975 and 1978. Four different types of movement were observed: residency, shifting, wandering and dispersal. Next to the residency pattern, wandering was the most common form of movement and probably was important during breeding activities. Dispersal was a rare event and is probably confused with wandering in the existing literature.
A total of 17 weather variables were analyzed for correlations with vole movement. Male voles showed a distinct tendency to move more widely during periods of dry weather. The latter was attributed to …
Textural And Taste Influences On Gnawing By Pine Voles, Lynette A. Geyer, James N. Cummins
Textural And Taste Influences On Gnawing By Pine Voles, Lynette A. Geyer, James N. Cummins
Eastern Pine and Meadow Vole Symposia
Pine voles and meadow voles exhibited differential preferences for various Malus clones. When damage to dormant stems in a 24-hr test was assessed by either a graded damage scale or percentage consumption by weight, pine voles preferred Golden Delicious, M.9, and M.26 and consistently avoided M.x sublobata PI 286613 ("613") and related clones and Robusta 5. Dehydrating stems magnified the disparity among cultivars, as attractive stems continued to suffer extensive damage, while 613 became even less palatable. In the autumn phase all varieties showed increased acceptance. Meadow voles, like pine voles, exhibited differential acceptance of cultivars, but their preferences differed …
Results Of A Bioassay Technique For Ground-Sprayed Rodenticides, David H. Davis, William T. Sullivan Jr., Don H. Hayne
Results Of A Bioassay Technique For Ground-Sprayed Rodenticides, David H. Davis, William T. Sullivan Jr., Don H. Hayne
Eastern Pine and Meadow Vole Symposia
A laboratory test of toxicity to voles of toxicants sprayed. on a soil substrate was used. to test brodifacoum, chlorqphacinone and. endrin against pine voles. By this test, endrin was not as effective against meadow voles as against pine voles.
Update Of Pine Vole Research At The Kearneysville Experiment Farm, Roger S. Young
Update Of Pine Vole Research At The Kearneysville Experiment Farm, Roger S. Young
Eastern Pine and Meadow Vole Symposia
As reported in the 1979 Proceedings of the Third Eastern Pine and Meadow Vole Symposium, an air and ground broadcast and hand placement in runs and mouse-ateria bait stations (tubes) experiment was started on December 5, 1978. Treatments were to apply brodifacoum (Volak) at 10. 0 lb. /A and diphacinone (Ramik-Brown) at 10. 0 lb. and 20. 0 lb. /A air broadcast and 10. 0 lb. /A ground broadcast and hand placement. The air broadcast treatments were not evenly distributed. Ground catch of the air broadcast of brodifacoum resulted in one portion of the treated area receiving 24% more toxicant. …
Field Evaluation Of Candidate Rodenticide, Milo E. Richmond, Pamela N. Miller
Field Evaluation Of Candidate Rodenticide, Milo E. Richmond, Pamela N. Miller
Eastern Pine and Meadow Vole Symposia
During autumn of 1978 and 1979 the New York Cooperative Wildlife Research Unit continued its program of research and management aimed at the pine vole (Pitymys pinetorum) and meadow vole (Microtus pennsylvanicus). Two herbicides, Ammate-X (E.I. Dupont de Nemours) and Kerb (Rhom S Haas Corp.) along with 4 candidate rodenticides, Bromadiolone and Chlorophacinone (Chempar Inc.), Volak (I.C.I. Chemicals Inc.) and zinc phosphide (Bell Laboratories Inc.) were tested in both orchard and laboratory situations. This work is being conducted in conjunction with a separate research unit project aimed at evaluating the potential of using populations of the …
Effective Vole Control With Zp Rodent Bait Ag, Edward F. Marshall
Effective Vole Control With Zp Rodent Bait Ag, Edward F. Marshall
Eastern Pine and Meadow Vole Symposia
Since the loss of DDT, Vacor (DPL 787) and other acute rodenticides and the serious use restrictions placed upon strychnine and 1080 for field use, it has become quite apparent that control of field rodents, more particular pine and meadow voles, with standard anticoagulants has become a difficult task, and in some instances impossible.
Bell Laboratories, Inc. has chosen to take a very serious look at many of the older compounds and rework and reformulate these compounds into palatable and efficacious finished baits. After 5 years of research and development. Bell Laboratories, Inc. has recently registered, with the Environmental Protection …
Frontmatter & Contents For Proceedings Of The Fourth Eastern Pine And Meadow Vole Symposium, February 21-22, 1980
Eastern Pine and Meadow Vole Symposia
Frontmatter and contents
Proceedings Of The Fourth Eastern Pine And Meadow Vole Symposium, February 21-22, 1980
Proceedings Of The Fourth Eastern Pine And Meadow Vole Symposium, February 21-22, 1980
Eastern Pine and Meadow Vole Symposia
Entire Symposium
HIGHLIGHTS OF THE FOURTH EASTERN PINE AND MEADOW VOLE SYMPOSIUM
The Fourth Eastern Pine and Meadow Vole Symposium was held in Hendersonvi1le, North Carolina February 21 and 22, 1980 for the primary purpose of assessing the current status of research and extension pro¬grams relating to the problem of vole damage to fruit trees. The meeting was designed to be informative and to create an atmosphere whereby growers and various agencies such as EPA, USDA, USDI, the chemical industry and university personnel could observe the current thrust of vole research programs and their potential impact on future control methods. …
Management Model For Pine Voles: Preliminary Report, John F. Coyle, Alan R. Tipton
Management Model For Pine Voles: Preliminary Report, John F. Coyle, Alan R. Tipton
Eastern Pine and Meadow Vole Symposia
The use of computer models in scientific research has grown by leaps and bounds in the past decade. One of the primary reasons for this growth is the increased realization that computers and more specifically computer models, can be useful tools in synthe¬sizing large amounts of information and providing insight into problem areas of research and management.
Numerous books and papers have been written on the justification for modeling, the philosophy of modeling, and model development and utilization. Recent reviews of small mammal population models are given by Conley and Nichols (1978) and Stenseth (1977). This paper will not address …
An Experimental Monitoring And Advisory Service In Orchard Vole Control, Don W. Hayne, William T. Sullivan Jr.
An Experimental Monitoring And Advisory Service In Orchard Vole Control, Don W. Hayne, William T. Sullivan Jr.
Eastern Pine and Meadow Vole Symposia
The North Carolina integrated, pest and. orchard, management project (IPOMS) has moved, from the data-gathering phase into an experimental information delivery system. We present here for possible comment the •written directions for vole monitoring that we prepared, for use by the orchard, specialists who will implement the monitoring and advisory system.
IPOMS started, in 1976 as a joint effort of a number of subject matter departments under the North Carolina Agricultural Research Service. A brief description of this cooperative effort of horticulturists, entomologists, plant pathologists, economists, zoologists and soil and weed. scientists has been presented to this group (Hayne 1978). …
Volume 4, Number 2 (February 1980), The Solar Ocean Energy Liaison
Volume 4, Number 2 (February 1980), The Solar Ocean Energy Liaison
The OTEC Liaison
No abstract provided.
The Probe, Issue 4 - February 1980
The Probe, Issue 4 - February 1980
The Probe: Newsletter of the National Animal Damage Control Association
Contents: THE SECRETARY'S DECISION Interior Goal No. 1 CEQ Recommendation NADCA Response Interior Goal No. 2 Interior Goal No. 3 Interior Goal No. 4 Interior Goal No. 5 Interior Goal Mo. 6 Interior Restriction No. 1 Interior Restriction No. 3 Interior Restriction Mo, 2 Interior Restriction No. 4 Interior Research Directives No. 1 Interior Research Directive No. 2 Interior Research Directive No. 3 Interior Research Directive No. 4 Interior Proposed Budget NADCA Animal Damage Control Program Recommendations SEE WHAT THE PUBLIC THINKS OF ADC?
Monthly Planet, 1980, February, Brian Blix, Huxley College Of The Environment, Western Washington University
Monthly Planet, 1980, February, Brian Blix, Huxley College Of The Environment, Western Washington University
The Planet
No abstract provided.
An Environmental Study Of The Origin, Distribution, And Bioaccumulation Of Selenium In Kentucky And Barkley Lakes, B. E. Mcclellan, Kenneth J. Frazer
An Environmental Study Of The Origin, Distribution, And Bioaccumulation Of Selenium In Kentucky And Barkley Lakes, B. E. Mcclellan, Kenneth J. Frazer
KWRRI Research Reports
Many samples of water, bottom sediment, and fish were analyzed for toxic metal ion content. The samples were collected from several selected sites along Kentucky and Barkley Lakes as well as the Cumberland River and several sub-impoundments along these aquatic systems. Emphasis was placed on selenium, although several other metal ions were determined. The results showed that there are no serious pollution problems with As, Cd, Cr, Cu, Hg, Pb, Se, Sr, Zn, or Zr at any of the sites examined. Actually, none of the trace metals examined even come close to the EPA limits on fish, with the exception …
Compensatory Response Of Maturing Corn Kernels Following Simulated Damage By Birds, Paul P. Woronecki, Robert A. Stehn, Richard A. Dolbeer
Compensatory Response Of Maturing Corn Kernels Following Simulated Damage By Birds, Paul P. Woronecki, Robert A. Stehn, Richard A. Dolbeer
United States Department of Agriculture Wildlife Services: Staff Publications
(1) A study was made to measure compensatory growth responses and to estimate losses associated with bird damage to maturing corn. (2) Corn kernels contain 20-40% of their final biomass at the time they are usually consumed by blackbirds. (3) Very slight compensation of kernel weight occurred following simulated bird damage to tip kernels. (4) Heavy bird damage, early in kernel development, increased fungal, sprouting, and insect damage before harvest. (5) Estimates of bird damage, subsequent secondary damage, and compensation were affected by the amount of damage, maturity of the kernels at the time of damage, and environmental factors before, …
The Ferc's Purpa Cogeneration Rules: Economics, Rate Design, And Policy Aspects, Charles David Laderoute
The Ferc's Purpa Cogeneration Rules: Economics, Rate Design, And Policy Aspects, Charles David Laderoute
UMR-MEC Conference on Energy / UMR-DNR Conference on Energy
Nearly two years have passed since the United States Congress enacted and the President signed into law the so-called National Energy Act which was actually comprised of five separate acts:
(1) Public Utility Regulatory Policies Act (PURPA)
(2) Powerplant and Industrial Fuel Use Act (FUA)
(3) Natural Gas Policy Act (NGPA)
(4) Energy Tax Act (ETA)
(5) National Energy Conservation Policy Act (NECPA)
Title II of PURPA addresses, inter alia, the issue of cogeneration: a technology that in recent years has received increasing attention as a method of utilizing our energy sources more efficiently. The first four of the above …
The Economics And Adaptation Of Microwave Heating & Cooling, Tom Day
The Economics And Adaptation Of Microwave Heating & Cooling, Tom Day
UMR-MEC Conference on Energy / UMR-DNR Conference on Energy
From cooking potatoes to medical surgery, the microwave is causing an interesting and beneficial transition in our daily lives. High technology is producing an avalanche of microwave appliances and equipment which offer favorable results in energy conservation with impressive safety parameters at competitive costs. This paper examines the basis for the comparative economic benefit from microwave applications and sights several commercial and industrial avenues of conservation metit.
Water Current, Volume 12, No. 1, January/February 1980
Water Current, Volume 12, No. 1, January/February 1980
Water Current Newsletter
Annual Report, Nebraska Water Resources Center
Water Planner Hired
Water Resources Seminar Schedule Change
Second Water Data Conference
Engineering Short Course at UNL
New Edition of Publication No. 7
Nation-Wide Conservation Program
Unified National Program for Floodplain Management
NSF Research Program in Appropriate Technology
Research Review: The Biological Regulation of Bloom-Causing Blue-Green Algae: A Feasible Alternative
Federal Water Pollution Control Act Section "404" Evaluation For Dickey-Lincoln School Lakes, New England Division, United States Army Engineer Division, United States Army Corps Of Engineers
Federal Water Pollution Control Act Section "404" Evaluation For Dickey-Lincoln School Lakes, New England Division, United States Army Engineer Division, United States Army Corps Of Engineers
Dickey-Lincoln School Lakes Project
The purpose of this report is to relate various aspects of the proposed Dickey-Lincoln School Lakes Hydroelectric Project to appropriate considerations defined by Section 404 of the Federal Water Pollution Control Act of 1972.
Fish And Wildlife Mitigation Report : Dickey-Lincoln School Lakes Project, Maine, New England Division, Corps Of Engineers, U. S. Army Engineer Division
Fish And Wildlife Mitigation Report : Dickey-Lincoln School Lakes Project, Maine, New England Division, Corps Of Engineers, U. S. Army Engineer Division
Dickey-Lincoln School Lakes Project
The Dickey Lincoln School Lakes Project is a proposed multipurpose project located on the upper reaches of the St. John River in Aroostook County, Maine. Development would consist of two dams with associated reservoirs and hydroelectric generating facilities, five dikes and transmission lines. A more detailed description of the proposed project and its associated impacts is contained within the Revised Draft Environmental Impact Statement for the proposed project.
Dickey-Lincoln School Lakes Project At Dickey, Maine : Draft Supplement Environmental Impact Statement, U.S. Army Engineer Division, New England Division
Dickey-Lincoln School Lakes Project At Dickey, Maine : Draft Supplement Environmental Impact Statement, U.S. Army Engineer Division, New England Division
Dickey-Lincoln School Lakes Project
The purpose of this Draft Supplement (SDEIS) to the Revised Draft Environmental Impact Statement (RDEIS) is to evaluate the environmental impacts of the Fish and Wildlife Mitigation Plan proposed for Implementation in conjunction with development of the Dickey-Lincoln School Lakes Project, Maine (Appendix K, RDEIS and Attachment 1 of the Report). Although the mitigation plan is intended to mitigate rather than impose adverse environmental impacts, the mitigation measures proposed do constitute a major Federal action requiring the development of a supplemental environmental impact statement pursuant to the National Environmental Policy Act of 1969.
Annotated Biobliography Of Remote Sensing For Highway Planning And Natural Resources, An, Daniel L. Civco, William C. Kennard, Michael Wm. Lefor
Annotated Biobliography Of Remote Sensing For Highway Planning And Natural Resources, An, Daniel L. Civco, William C. Kennard, Michael Wm. Lefor
Storrs Agricultural Experiment Station
No abstract provided.
Reflectorized Soybean Canopy In Relation To Transpiration And Herbicide Phytotoxicity, S.N. Ogbuehi, J.R.C. Leavitt, James R. Brandle
Reflectorized Soybean Canopy In Relation To Transpiration And Herbicide Phytotoxicity, S.N. Ogbuehi, J.R.C. Leavitt, James R. Brandle
School of Natural Resources: Faculty Publications
No abstract provided.
Regional Tectonics And Seismicity Of Eastern Nebraska, Annual Report July 1980 - June 1981, R. R. Burchett
Regional Tectonics And Seismicity Of Eastern Nebraska, Annual Report July 1980 - June 1981, R. R. Burchett
School of Natural Resources: Faculty Publications
This annual report presents and interprets the information obtained by the Conservation and Survey Division (Nebraska Geological Survey) during contract year July 1, 1980, to June 30, 1981, under contract NRC-04-76-3lS with the U. S. Nuclear Regulatory Commission. The information pertains to the geology, structure, tectonics, and seismicity of eastern Nebraska with emphasis on central Otoe County. Some of the information presented here results from a combination of studies begun in earlier years but the greater part results from studies begun during the contract year.
The scope of the studies is summarized as follows:
1. Rock outcrops in Otoe County …
Volume 4, Number 1 (January 1980), The Solar Ocean Energy Liaison
Volume 4, Number 1 (January 1980), The Solar Ocean Energy Liaison
The OTEC Liaison
No abstract provided.
A Guide To The Threatened And Endangered Vascular Plants Of The Lake Mead National Recreation Area, James S. Holland, Wesley E. Niles, Charles L. Douglas, Dennis R. Schramm
A Guide To The Threatened And Endangered Vascular Plants Of The Lake Mead National Recreation Area, James S. Holland, Wesley E. Niles, Charles L. Douglas, Dennis R. Schramm
Publications (WR)
This illustrated guide was prepared to provide the botanical community, land managers, and other interested persons with a reference that describes and locates the twelve plant taxa currently being considered by the Fish and Wildlife Service for threatened or endangered status in or around the Lake Mead National Recreation Area. The guide is intended to assist managers of government agencies in determining the presence of these species and in defining management programs for their protection. The guide should be consulted prior to any construction project. If a potential conflict is identified, an onsite evaluation should be conducted early in the …
Influence Of Dredging And High Discharge On The Ecology Of Black Canyon, Larry J. Paulson, Theron G. Miller, John R. Baker, U.S. Water And Power Resources Service
Influence Of Dredging And High Discharge On The Ecology Of Black Canyon, Larry J. Paulson, Theron G. Miller, John R. Baker, U.S. Water And Power Resources Service
Publications (WR)
The Water and Power Resources Service is considering dredging in Black Canyon to create a larger forebay to accommodate higher peak discharges and reverse flows for proposed modifications to Hoover Dam.
The Black Canyon area from Hoover Dam to Willow Beach supports a heavily utilized trout fishery and is important habitat for the razorback sucker (Xyrauchen texanus) and possibly bonytail chub (Gila elegans).
The Water and Power Resources Service initiated this investigation to determine what effect dredging and higher peak-discharges would have on the ecology of Black Canyon.
The Limnological Status Of Lake Mead And Lake Mohave Under Present And Future Powerplant Operations Of Hoover Dam, Larry J. Paulson, John R. Baker, James E. Deacon, U.S. Water And Power Resources Service
The Limnological Status Of Lake Mead And Lake Mohave Under Present And Future Powerplant Operations Of Hoover Dam, Larry J. Paulson, John R. Baker, James E. Deacon, U.S. Water And Power Resources Service
Publications (WR)
The ever-increasing demand for energy in the southwest has led to a search for additional sources of power generation. Coal-fired powerplants currently provide most of the baseline energy in the southwest, but this must be supplemented with hydroelectric power during periods of peak demand. In order to provide additional peaking power, the U.S. Bureau of Reclamation is considering a number of projects to modify existing hydroelectric facilities, or add new facilities in the Lake Mead Recreation Area.
The Hoover Powerplant Modification Feasibility Investigation was authorized by Congress on December 16, 1975 to determine the feasibility of: (i) adding one or …
#58 - Survival In The Wilderness, Department Of Health Education
#58 - Survival In The Wilderness, Department Of Health Education
Keys to Total Health
- Survival in the Wilderness
- Finding Directions
- Into the Wilderness!
- Foods in the Wilderness
- Surviving A Disaster
- Quiz