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Articles 34171 - 34200 of 38013
Full-Text Articles in Entire DC Network
Mule Deer Habitat Guidelines, Richard M. Kerr
Mule Deer Habitat Guidelines, Richard M. Kerr
United States Bureau of Land Management: Staff Publications
The purpose of this Mule Deer (Odocoileus hemionus) Habitat Management Guide is principally to assist BLM managers and biologists in planning for and managing mule deer habitat on public lands administered by the Bureau of Land Management. For many years Federal land management agencies have made the distinction between the Federal responsibility for managing habitat and the State prerogatives of managing native wild ungulate populations. Certainly the two are inseparably linked. These responsibilities, and up to now "symbiotic relationships", are probably best described succinctly in Title 43 of the Code of Federal Regulations Part 24.
Outlook -- The …
Agricultural Experiment Station News August 1979
Agricultural Experiment Station News August 1979
Agricultural Research Division: News and Annual Reports
CONTENTS:
FROM THE ACTING DIRECTOR'S DESK
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
GENERAL NOTES
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS - July 1979
BULLETINS PRINTED
Agar Plate Culture Of Selected Trypanosomatidae, Amy Doran Keppel
Agar Plate Culture Of Selected Trypanosomatidae, Amy Doran Keppel
School of Biological Sciences: Dissertations, Theses, and Student Research
Summary
The study of trypanosomatid biology would benefit greatly from the acquisition of a tool for culturing such as those used in microbiology. Agar plate culture has been described several times, but until the present its potential for use in this area has been underestimated. The previous work has demonstrated that this culture method may be used to culture a wide variety of species, that these species give rise to identifiable colony phenotypes, and that these are stable regardless of the life cycle stage used to initiate the culture. It was also shown that colonies could be initiated from the …
Germ Plasm Evaluation Program- Progress Report No. 7, Roman L.Hruska U.S. Meat Animal Research Center
Germ Plasm Evaluation Program- Progress Report No. 7, Roman L.Hruska U.S. Meat Animal Research Center
Roman L. Hruska U.S. Meat Animal Research Center: Reports
The cattle Germ Plasm Evaluation Program has been conducted in three cycles. Cycle I involved breeding Hereford, Angus, Jersey, South Devon, Limousin, Simmental and Charolais bulls by artificial insemination (AI) to Hereford and Angus cows to produce three calf crops (Cycle I, Phase 2) in the spring of 1970, 1971 and 1972.
Cycle II, initiated with the 1972 breeding season, involved the Hereford and Angus cows used in the first cycle. These cows were bred by AI to Hereford, Angus, Red Poll, Brown Swiss, Gelbvieh, Maine Anjou and Chianina sires to produce two calf crops (Cycle II, Phase 2) in …
Agricultural Experiment Station News July 1979
Agricultural Experiment Station News July 1979
Agricultural Research Division: News and Annual Reports
CONTENTS:
SEARCH AND SCREENING COMMITTEE PROGRESS REPORT
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
GENERAL NOTES
AGRICULTURAL EXPERIMENT STATION PUBLICATIONS – June 1979
Nebraska Farm Real Estate Market Developments In 1978-79, Bruce Johnson, Ronald J. Hanson
Nebraska Farm Real Estate Market Developments In 1978-79, Bruce Johnson, Ronald J. Hanson
Nebraska Farm Real Estate Reports
Farm real estate values in Nebraska have trended upward for several decades with only a few interruptions. In Nebraska as well as most of the Nation, dramatic increases have occurred within the last six years. The year 1978-79 was no exception.
Data released by the U.S. Department of Agriculture for February 1, 1979 showed a 22 percent increase in the average value of Nebraska farmland from a year earlier. This was certainly in contrast to the 4 percent drop in land values reported for 1977-78.
Results of the second annual Nebraska Farm Real Estate Market Survey conducted by the Department …
Farm, Ranch And Home Quarterly Institute Of Agriculture And Natural Resources, University Of Nebraska- Lincoln
Farm, Ranch and Home Quarterly
In this issue:
Exciting Events................. 2
Cracked Eggs Are No Yolking Matter.................. 3
Spinoff Research................ 5
Save Those Clippings!.................... 6
IANR Reaches Out- From Nebraska to the World................... 8
Rainbarrels and Reservoirs- Water Storage in Nebraska..................... 10
PUMP Helps Operators Trace Total Irrigation Costs.................. 14
Irrigation Weed Seed....................... 16
Telling the Water Level Story........................ 18
Family Importance and Satisfaction- Quality of Life................. 20
Fusarium Blight- A Common Disease in Bluegrass Lawns...................... 22
Composting Can Benefits Nebraska Communities.................... 25
93rd Annual Report Of The Nebraska Agricultural Experiment Station
93rd Annual Report Of The Nebraska Agricultural Experiment Station
Agricultural Research Division: News and Annual Reports
Contents:
Foreword
Administration and Staff
Nebraska Agricultural Experiment Station
Research Projects
Experiment Station Publications
Publications of the Staff
Report of Income and Expenditures
Agricultural Experiment Station News June 1979
Agricultural Experiment Station News June 1979
Agricultural Research Division: News and Annual Reports
CONTENTS:
FROM THE DIRECTOR'S DESK
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
GENERAL NOTES
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS – May 1979
BULLETINS PRINTED
Whole Issue Nebraska Bird Review (June 1979) 47(2)
Whole Issue Nebraska Bird Review (June 1979) 47(2)
Nebraska Bird Review
Table of Contents
1978 (Twenty-first) Fall Occurrence Report ........................................ 22
Addition to 1978 Spring Migration Report .......................................... 33
1978 Christmas Count........................................................... 33
Some Comments on "The Breeding Birds of Nebraska”............................. 38
A Second Nesting Record for Merlins in Nebraska .................................. 39
Great Black-backed Gull near Omaha............................................. 39
Distribution Of Phytoplankton In Nebraska Lakes, F. A. Morris, M. K. Morris, W. D. Taylor, L. R. Williams, S. C. Hern, V. W. Lambou
Distribution Of Phytoplankton In Nebraska Lakes, F. A. Morris, M. K. Morris, W. D. Taylor, L. R. Williams, S. C. Hern, V. W. Lambou
United States Environmental Protection Agency: Publications
Protection of the environment requires effective regulatory actions which are based on ssound technical and scientific information. This information must include the quantitative description and linking of pollutant sources, transport mechanisms, interactions, and resulting effects on man and his environment. Because of the complexities involved, assessment of specific pollutants in the environment requires a total systems approach which transcends the media of air, water, and land. The Environmental Monitoring and Support Laboratory-Las Vegas contributes to the formation and enhancement of a sound monitoring data base for exposure assessment through programs designed to:
- develop and optimize systems and strategies for monitoring …
Distribution Of Plants With Extrafloral Nectaries And Ants At Two Elevations In Jamaica, Kathleen H. Keeler
Distribution Of Plants With Extrafloral Nectaries And Ants At Two Elevations In Jamaica, Kathleen H. Keeler
School of Biological Sciences: Faculty Publications
Frequencies of plants with extrafloral nectaries were determined for two elevations in Jamaica. Extrafloral nectaries were found on 0.28 of the plants at sea level (Happy Grove, Portland) and 0.00 of the plants at 1310 m (Whitfield Hall, St. Thomas). Ant abundance, as indicated by discovery of and recruitment to baits, was greater at the lower elevation site. However, despite the apparent absence of plants with extrafloral nectaries, there were abundant ants at 1310 m.
Search Image Formation In The Blue Jay (Cyanocitta Cristata), Alexandra T. Pietrewicz, Alan Kamil
Search Image Formation In The Blue Jay (Cyanocitta Cristata), Alexandra T. Pietrewicz, Alan Kamil
Papers in Behavior in Biological Sciences
Blue jays trained to detect Catocala moths in slides were exposed to two types of slide series containing these moths: series of one species and series of two species intermixed. In one species series, detection ability increased with successive encounters with one prey type. No similar effect occurred in two species series. These results are a direct demonstration of a specific search image.
Agricultural Experiment Station News May 1979
Agricultural Experiment Station News May 1979
Agricultural Research Division: News and Annual Reports
CONTENTS:
FROM THE DIRECTOR'S DESK
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
GENERAL NOTES
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS – April 1979
BULLETINS PRINTED
Efficiency Of Gains And Carcass Characteristics Of Swine Of Two Degrees Of Fatness Slaughtered At Three Weights, J. D. Neely, R. K. Johnson, L. E. Walters
Efficiency Of Gains And Carcass Characteristics Of Swine Of Two Degrees Of Fatness Slaughtered At Three Weights, J. D. Neely, R. K. Johnson, L. E. Walters
Department of Animal Science: Faculty Publications
Two hundred barrows and gilts were slaughtered at 100, 113 and 127 kg live weight. The sample was comprised of 36 litters, of which six litters within each breed of sire (Duroc, Hampshire and Yorkshire) were classified as fat litters (2.36 cm) and six litters classified as lean litters (2.16 cm) on the basis of litter mean backfat probes taken at 68 kg live weight. Growth traits were evaluated from 9 weeks of age until the designated slaughter weight. Carcasses from the first replication (18 litters) were evaluated for percentage separable lean, fat and bone and those from the second …
Bacteriological Quality Of Runoff Water From Pastureland, John W. Doran, D.M. Linn
Bacteriological Quality Of Runoff Water From Pastureland, John W. Doran, D.M. Linn
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Runoff from a cow-calf pasture in eastern Nebraska was monitored for total coliforms (TC), fecal coliforms (FC), and fecal streptococci (FS) during 1976, 1977, and 1978. Bacteriological counts in runoff from both grazed and ungrazed areas generally exceeded recommended water quality standards. The FC group was the best indicator group of the impact of grazing. Rainfall runoff from the grazed area contained 5 to 10 times more FC than runoff from the fenced, ungrazed area. There was little difference in TC counts between the two areas, but FS counts were higher in runoff from the ungrazed area and reflected the …
A Forecasting-Programming Method For Placement-Sales Decisions For A Beef Feedlot, Franz Schwarz, J. B. Hassler
A Forecasting-Programming Method For Placement-Sales Decisions For A Beef Feedlot, Franz Schwarz, J. B. Hassler
Nebraska Agricultural Experiment Station: Historical Research Bulletins
This bulletin reports on a practical multi-period linear programming procedure as a management tool for decisions on placements and marketings for a beef feedlot operating over time under market uncertainty. Although the conclusions were based on application to an individual firm with uniqueness in time and space, the model should be equally appropriate for any firm's production and marketing decisions through time.
Agricultural Experiment Station News April 1979
Agricultural Experiment Station News April 1979
Agricultural Research Division: News and Annual Reports
CONTENTS:
FROM THE DIRECTOR'S DESK
PERSONNEL ACTION
GRANTS & CONTRACTS
GENERAL NOTES
Journal Abstracts - Submitted for Publication
BULLETINS PRINTED
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS - March 1979
A Study Of Nongeographic Variation In Tatera Leucogaster (Mammalia: Rodentia) From Botswana, Pierre Swanepoel, Duane A. Schlitter, Hugh H. Genoways
A Study Of Nongeographic Variation In Tatera Leucogaster (Mammalia: Rodentia) From Botswana, Pierre Swanepoel, Duane A. Schlitter, Hugh H. Genoways
University of Nebraska State Museum: Mammalogy Papers
Specimens of Tatera leucogaster from six localities in Botswana were tested for variation with age, secondary sexual variation, and individual variation. Of the six age classes recognized, categories I, II, and III each formed their own group, whereas cat egories IV, V, and VI were not separable on a morphometric basis and were considered to be adults. Significant secondary sexual variation was found only in depth of braincase in which females were larger. The only character exhibiting unusually high individual variation was length of posterior palatal foramen. All other characters exhibited individual variation within acceptable limits.
A Systematic Review Of The Olive-Backed Pocket Mouse, Perognathus Fasciatus (Rodentia, Heteromyidae), Daniel F. Williams, Hugh H. Genoways
A Systematic Review Of The Olive-Backed Pocket Mouse, Perognathus Fasciatus (Rodentia, Heteromyidae), Daniel F. Williams, Hugh H. Genoways
University of Nebraska State Museum: Mammalogy Papers
Geographic variation in Perognathus fasciatus Wied and the identities of specimens of P. fasciatus and P. flavescens from areas of potential sympatry were investigated. Populations of P. fasciatus from the northern Great Plains, in areas with the highest amounts of precipitation, were the darkest colored and had proportionately the smallest auditory bullae. Size varied clinally in the Great Plains, with larger mice being found in the cooler, northern latitudes. Populations from the arid intermountain basins of Colorado, Utah, and Wyoming were largest in size, had the longest tails, were the palest in color, and had the largest bullae. Two races …
Alveolar Hydatid Disease In Minnesota: First Human Case Acquired In The Contiguous United States, William G. Gamble, Martin Segal, Peter M. Schantz, Robert L. Rausch
Alveolar Hydatid Disease In Minnesota: First Human Case Acquired In The Contiguous United States, William G. Gamble, Martin Segal, Peter M. Schantz, Robert L. Rausch
Harold W. Manter Laboratory of Parasitology: Faculty Publications
A 56-year-old woman from southwestern Minnesota underwent an extended left hepatic lobectomy to remove a large multinodular mass with a necrotic central cavity. The clinical, serological, and pathological findings led to the diagnosis of alveolar hydatid disease, and specific identification of Echinococcus multilocularis was achieved by growing mature larvas in voles inoculated intraperitoneally with tissue from the hepatic lesions. The patient probably acquired her infection some years previously from pet cats or dogs that had become infected by ingesting infected rodents. In North America E. multilocularis is enzootic in the northern tundra zone of Alaska and Canada. Since 1964 the …
Whole Issue Nebraska Bird Review (March 1979) 47(1)
Whole Issue Nebraska Bird Review (March 1979) 47(1)
Nebraska Bird Review
Table of Contents
1978 Treasurer's Report ........................................ 2
The Breeding Birds of Nebraska. ...........................................3
Book Reviews .............................................................. 17, 19
Notes ..................................................................... 17, 19
The Breeding Birds Of Nebraska, Paul A. Johnsgard
The Breeding Birds Of Nebraska, Paul A. Johnsgard
Paul Johnsgard Collection
This brief annotated list of Nebraska's breeding birds is the direct outgrowth of the work involved in the preparation of a forthcoming book titled "The Birds of the Great Plains," which will include range maps for all species except extinct or extirpated ones, and will also provide information on breeding habitat, nest location, clutch size, incubation period, and breeding biology. The purpose of the present compilation is to provide a convenient summary for Nebraska alone, amplifying some of the more general statements of that book, and pointing out uncertain or interesting situations needing further attention from field ornithologists. It includes …
Preliminary Results Of Two Research Projects In New York, Jonathan Bart, Milo E. Richmond
Preliminary Results Of Two Research Projects In New York, Jonathan Bart, Milo E. Richmond
Eastern Pine and Meadow Vole Symposia
In the fall of 1977, New York fruit growers in the state's Hudson Valley region were given a temporary permit to use endrin in an effort to curb an increasing vole damage problem. The approval of endrin for this use was the first such large scale release of a chemical in this class since the banning in 1971 of most chlorinated hydrocarbons in this state. With approval for limited use came the obligation to monitor the Hudson Valley region for 1) efficacy of the material, 2) non-target effects on aquatic and terrestrial wildlife and 3) persistence in the orchard environment. …
Results Of Pine Vole Control Studies In 1978, Ross E. Byers
Results Of Pine Vole Control Studies In 1978, Ross E. Byers
Eastern Pine and Meadow Vole Symposia
Broadcast treatments of a number of anticoagulant baits were found to be effective for the control of pine voles in orchards. Rates necessary for good control were: Volak - 15 lbs/A; Bromodiolone 15 lbs/A; Rozol - 20 lbs/A; two applications of Ramik-Brown - 20 lbs/A each. At least 3 days of good weather appeared to be required for good vole control. Cellophane packeted baits of Volak placed at each tree in vole runways under cinder blocks gave excellent control. Bait remained in excellent condition for long periods of time or until opened by voles. An electromagnetic device was evaluated for …
Impact Of Spacing Behavior And Predation On Population Growth In Meadow Voles, Dale M. Madison
Impact Of Spacing Behavior And Predation On Population Growth In Meadow Voles, Dale M. Madison
Eastern Pine and Meadow Vole Symposia
Free-ranging, sexually mature meadow voles (Microtus pennsylvanicus) were tracked using radiotelemetry from June through August 1974, 1975 and 1978. Up to 20 voles were monitored concurrently to derive estimates of intraspecific spacing and natural predation in an effort to clarify processes involved in the limitation of population growth. The daily ranges of the males, as compared to those of the females, were larger, more variable in size, and changed location more from one day to the next. Adult females usually maintained territories free of other females; males overlapped considerably among themselves. Males temporarily moved into the areas occupied by estrous …
Embryo Rejection In The Pine Vole, Kenneth J. Marks, Margaret Horsfall Schadler
Embryo Rejection In The Pine Vole, Kenneth J. Marks, Margaret Horsfall Schadler
Eastern Pine and Meadow Vole Symposia
When a pregnant pine vole is placed in a cage with a strange (unfamiliar) male, one that did not cause her pregnancy, this female goes into "heat", indicating she has rejected the embryos she was carrying. This pine vole can later be impregnated by the strange, or second male. This phenomenon of pregnancy termination, called the "Bruce effect", was first noticed by Hilda Bruce, who saw it occur in labratory mice. Many investigators have noted it in a variety of labratory mice, deer mice, and other species of voles. We set out to see if the Bruce effect was reproducible …
Vole Management Studies-1978, Jay Mcaninch
Vole Management Studies-1978, Jay Mcaninch
Eastern Pine and Meadow Vole Symposia
Earlier studies at the Cary Arboretum (McAninch, 1978) have described mowing and general cultural management practices as key elements in vole management programs. During the 1978 growing season, studies were initiated to quantify several soil parameters and vegetative elements in fruit orchards and correlate these characteristics to the distribution and abundance of vole populations. Although a great deal of additional orchard-vole data has been generated, only the associations described above will be discussed in this paper.
Vole Control With Volak Rodenticide, Dale E. Kaukeinen
Vole Control With Volak Rodenticide, Dale E. Kaukeinen
Eastern Pine and Meadow Vole Symposia
Field trials with VOLAK rodenticide containing 50 ppm brodifacoum have been conducted in eight states and against four vole species during 1977-78. Hand baiting at 5-10 lb/A and broadcast applications at 10-20 lb/A gave more effective control than other products tested in most cases.
The Endrin Rpar, Lawrence S. Ebner
The Endrin Rpar, Lawrence S. Ebner
Eastern Pine and Meadow Vole Symposia
In July, 1976 the U.S. Environmental Protection Agency issued a "Notice of Rebuttable Presumption Against Registration and Continued Registration of Pesticide Products Containing Endrin" (41 Fed. Reg. 31,316). The purpose of this Notice was to initiate an "RPAR" review to determine whether continued usage of endrin, including the use of endrin for vole control, poses a "substantial question of safety" necessitating cancellation proceedings under Section 6(b) of the Federal Insecticide, Fungicide and Rodenticide Act ("FIFRA").