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Articles 37141 - 37170 of 40084
Full-Text Articles in Entire DC Network
Comparisons Of Strychnine And Zinc Phosphide In Prairie Dog Control, H. Todd Holbrook, Robert M. Timm
Comparisons Of Strychnine And Zinc Phosphide In Prairie Dog Control, H. Todd Holbrook, Robert M. Timm
Eastern Wildlife Damage Control Conference: 2nd (1985)
Efficacy and safety are primary considerations in registration and use of toxicants for vertebrate pest control. Strychnine (0.5%) and zinc phosphide (2%) are currently registered by EPA for prairie dog control, but continued registration is uncertain. Two percent zinc phosphide bait has been suspected of producing lower and more erratic results than strychnine bait. In our study in western Nebraska in fall 1984, indices based on changes in burrow activity showed no difference in efficacy (P=0.66) or variability (P=0.7) of control for strychnine and zinc phosphide, however neither toxicant consistently gave effective control of blackballed prairie dogs. Costs for proper …
Apparent Efficacy Of Bird Aircraft Strike Hazard Programs At Four Naval Air Stations, Thomas C. Walker, C. Willard Bennett
Apparent Efficacy Of Bird Aircraft Strike Hazard Programs At Four Naval Air Stations, Thomas C. Walker, C. Willard Bennett
Eastern Wildlife Damage Control Conference: 2nd (1985)
The Department of the Navy implemented its present mandatory bird-aircraft strike reporting system in 1981. Reported bird-aircraft strikes have increased each year, presumably due to increased awareness and compliance with regulations. Four Naval air stations implementing bird-aircraft strike hazard reduction programs in 1984 reported 57-78% fewer strikes in 1984 than in 1983.
Air Force Problems With Birds In Hangars, Timothy J. Will
Air Force Problems With Birds In Hangars, Timothy J. Will
Eastern Wildlife Damage Control Conference: 2nd (1985)
The Air Force's Bird-Aircraft Strike Hazard (BASH) Team has been dealing with bird hazards to aircraft for over ten years, primarily through awareness programs, direct assistance to military bases, and through R&D aimed at world-wide BASH reduction. As with any problem where a biological system (in this case, birds) is involved, diversification is important in developing solutions. The BASH Team has recommended a variety of methods for working with hazards from birds. One area of particular concern is the nuisance of pest birds in hangars. These structures are extremely alluring to birds, which seek the roof-supporting I-beams and bars for …
Relationship Between Seasonal Changes In Forage Quality And Feeding Patterns In Meadow Voles (Microtus Pennsylvanicus), Ronald J. Brooks, Stephen A. Struger
Relationship Between Seasonal Changes In Forage Quality And Feeding Patterns In Meadow Voles (Microtus Pennsylvanicus), Ronald J. Brooks, Stephen A. Struger
Eastern Wildlife Damage Control Conference: 2nd (1985)
Forage analyses revealed that mowed orchards provide a relatively high quality forage to meadow voles (Microtus pennsylvanicus), especially in the fall. Mowed forage was characterized by significantly higher protein and moisture content and significantly lower acid and neutral detergent fibre and lignin than forage from an abandoned orchard. Energy and fat were not significantly affected by mowing.. However, vole numbers declined markedly in mowed regions in comparison to undisturbed areas. Voles preferred to inhabit areas with dense cover even though vegetative dieback had occurred. Voles did not exhibit any distinct preference for either cracked corn (rodenticide carrier agent) …
Estimating Cost-Effectiveness Of Controlling Animal Damage To Conifer Seedlings, David S. Decalesta
Estimating Cost-Effectiveness Of Controlling Animal Damage To Conifer Seedlings, David S. Decalesta
Eastern Wildlife Damage Control Conference: 2nd (1985)
A model for determining the benefit-cost ratio of controlling damage by vertebrate pests to conifer seedlings requires knowledge of the amount, distribution, and duration of animal damage, reduction in damage associated with control, costs of control, methodology and value of trees at harvest. Because control costs occurring in the present must be compared with savings recovered decades later in the future, the model incorporates procedures for discounting or adjusting future monetary benefits into present net worth valuations,, The model allows forest managers to evaluate a wide range of damage costs and savings accruing from use of various control techniques. The …
Economic And Environmental Impacts Of Beavers In North Carolina, David K. Woodward, Robert B. Hazel, Brian P. Gaffney
Economic And Environmental Impacts Of Beavers In North Carolina, David K. Woodward, Robert B. Hazel, Brian P. Gaffney
Eastern Wildlife Damage Control Conference: 2nd (1985)
In 1984, a postal survey of landowners and managers was conducted in North Carolina concerning the presence of beavers (Castor canadensis) on their property. Major objectives of the survey were to determine: (1) current distribution and relative abundance of beavers in North Carolina, (2) the economic and environmental impacts from an apparently increasing beaver population, and (3) landowner attitudes toward these increasing populations. Of the 1,069 questionnaires returned, data was compiled from 456 landowners (43 percent) who confirmed the presence of beaver activity on their property during 1983. A significant increase in beaver numbers and distribution has occurred throughout much …
Nebraska Bird Review (September 1985) 53(3), Whole Issue
Nebraska Bird Review (September 1985) 53(3), Whole Issue
Nebraska Bird Review
1984 Nebraska Nesting Survey … 46
1985 (Sixtieth) Spring Occurrence Report … 50
Hybrid Bluebirds in the Pine Ridge … 67
Notes … 67
Book Review … 68
The Prairie Naturalist Volume 17, No. 3. September 1985
The Prairie Naturalist Volume 17, No. 3. September 1985
The Prairie Naturalist
Paul B. Kannowski, Editor
Nikki R. Seabloom, Assistant Editor
Douglas H. Johnson, Book Review Editor
TABLE OF CONTENTS
EFFECTS OF FIRE ON NUTRIENT AND ENERGY CONCENTRATION OF FIVE PRAIRIE GRASS SPECIES ▪ K. M. Ohr and T. B. Bragg
FOOD HABITS OF JUVENILE GIZZARD SHAD IN OPEN-WATER AND NEAR-SHORE HABITATS OF MELVERN RESERVOIR, KANSAS ▪ B. L. Todd and D. W. Willis
CHANGES IN BREEDING BLACKBIRD NUMBERS IN NORTH DAKOTA FROM 1967 TO 1981–82 ▪ J. F. Besser
RARE ANIMALS AND PLANTS OF SOUTH DAKOTA ▪ W. C. Houtcooper, D. J. Ode, J. A. Pearson, and G. M. Vandel III …
1985 (Sixtieth) Spring Occurrence Report
1985 (Sixtieth) Spring Occurrence Report
Nebraska Bird Review
Two hundred ninety-two species, plus Clark’s Nutcracker, for which no specific dates were reported, and Lapland Longspur, which was not recorded, are listed in this report, from 22 locations. The comparable figures for 1984 are 293 and one possible, from 13 locations; 1983 288 and 2 possibles from 13; and 1982 287 from 15 locations.
The Probe, Issue 56 - September/October 1985
The Probe, Issue 56 - September/October 1985
The Probe: Newsletter of the National Animal Damage Control Association
THE PROBE
National Animal Damage Control Association
September- October, 1985
The Justice Department has decreed that the transfer of ADC activities from Agriculture to Interior was illegal so no legislative action was needed to transfer ADC duties.
1080 Collar
Animal Right Activists on Garden Slugs
Professionalism – Commitment Beyond Employment by Jack W. Thomas Applied Wildlife Management
Elephant Rampage
2nd Eastern Wildlife Damage Control Conference
Legislation Scoreboard
National sample of individual attitudes towards 33 animals.
Olive-backed pipit
Personnel
Viewpoint: Forage And Range Research Needs In The Central Great Plains, Kenneth P. Vogel, H. J. Gorz, Francis A. Haskins
Viewpoint: Forage And Range Research Needs In The Central Great Plains, Kenneth P. Vogel, H. J. Gorz, Francis A. Haskins
Department of Agronomy and Horticulture: Faculty Publications
In the central Great Plains, pastures and rangelands often are not economically competitive with grain crops. This has led to increases in acreages of row crops at the expense of rangelands, pastures, and hay crops on marginal lands resulting in severe erosion problems. The productivity of forages, pastures, and rangelands needs to be increased to levels that would make them economically competitive with grain crops. Innovative research will be needed to develop the required knowledge and technology upon which productivity increases can be based. Pastures and rangelands in this area are usually components of production systems which may also include …
Relationship Between Planthoppers (Nilaparvata Lugens And Sogatella Furcifera) And Rice Diseases, S. C. Lee, D. M. Matias, T. W. Mew, J. S. Sorino, Elvis A. Heinrichs
Relationship Between Planthoppers (Nilaparvata Lugens And Sogatella Furcifera) And Rice Diseases, S. C. Lee, D. M. Matias, T. W. Mew, J. S. Sorino, Elvis A. Heinrichs
Department of Entomology: Faculty Publications
The locational preference of the brown planthopper (BPH) Nilaparvata lugens
(Still) and the whitebacked plant hopper (WBPH) Sogatella furcifera (Horvath) was studied on rice cultivars IR22 and IR36 as an integral part of subsequent research on insect-fungal pathogen relationships. The BPH was observed to stay consistently on the basal portion while the WBPH showed a general preference for the upper portion regardless of varieties, rice growth stages and insect population density levels. The habitat preference of both species (BPH and WBPH) was found not to be affected by the presence of the other species when both species are present on …
Carbon Dioxide Exchange Rate Of Tall Fescue-Leaf Area Vs. Leaf Weight Basis, Wallace Wilhelm, C. J. Nelson
Carbon Dioxide Exchange Rate Of Tall Fescue-Leaf Area Vs. Leaf Weight Basis, Wallace Wilhelm, C. J. Nelson
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
The basis used for expression of carbon dioxide exchange rate (CER) of single leaves may alter the relative ranking of genotypes being selected for a breeding program. Therefore, field and growth chamber experiments were conducted on 16 genotypes of tall fescue (Festuca arundinacea Schreb.) to determine the relative merit of expressing CER data on a leaf area or leaf weight basis. Genotypes were grown in plots in the field and in pots in the growth chamber. The CER was measured using an infrared gas analyzer. Herbage yield was determined. Significant genotypic variation within experiments was found for CER when …
The Development Of An Instructional Design Model For Equal Opportunity In The Nebraska Army National Guard, Rodney Leon Moore
The Development Of An Instructional Design Model For Equal Opportunity In The Nebraska Army National Guard, Rodney Leon Moore
Department of Agricultural Leadership, Education, and Communication: Dissertations, Theses, and Student Research
No abstract provided.
The Probe, Issue 55 - August 1985
The Probe, Issue 55 - August 1985
The Probe: Newsletter of the National Animal Damage Control Association
THE PROBE
National Animal Damage Control Association
No. 55 August, 1985
To Russia, With Love?
Predators and Pesticides
Secondary Hazards to Owls
Phosphine Disposal Problems
Pro-Pesiticide Group
Letter to the Editor of Country Journal
1080 Toxic Collar
EPA
McKinzie Catalog
Forest-Animal Damage Control Research
USFWS Zinc Phosphide Formulations
Birds and Blueberries
Synthesis And Localization Of A Development-Specific Protein In Sclerotia Of Sclerotinia Sclerotiorum, Geraldine Russo, James L. Van Etten
Synthesis And Localization Of A Development-Specific Protein In Sclerotia Of Sclerotinia Sclerotiorum, Geraldine Russo, James L. Van Etten
Department of Plant Pathology: Faculty Publications
A development-specific protein (SSP) makes up about 35 to 40% of the total protein in sclerotia of the fungus Sclerotinia sclerotiorum. The protein consists of three charge isomers, with one isomer making up 80 to 90% of the total. In vitro translation of poly(A)+ RNA isolated from cells in early stages of sclerotia formation revealed that 44% of the amino acids incorporated was into SSP. In vivo- and in vitro-synthesized forms of SSP migrated at identical rates on both isoelectric focusing and denaturing polyacrylamide gels, indicating that SSP was not synthesized as a larger precursor. This was significant …
Thindown In Radiobiology, Robert Katz, D. E. Dunn, G. L. Sinclair
Thindown In Radiobiology, Robert Katz, D. E. Dunn, G. L. Sinclair
Robert Katz Publications
A new expression for the radial dose distribution, tested against available data, and yielding good agreement with enzyme and virus cross sections, is used to calculate cellular inactivation cross sections from track theory models and parameters. We use a cellular model and radiosensitivity parameters, fitted to HILAC data 15 years ago, to represent mammalian cells irradiated at the UNILAC. The observed branching with Z and the decline in cellular action cross sections with an increase in ion LET are attributed to thindown; that is, to the limits imposed by the maximum radial penetration of delta rays. Target size and structure …
Recovery Of Helminths From Prehistoric Feces: The Cultural Ecology Of Ancient Parasitism, Karl J. Reinhard
Recovery Of Helminths From Prehistoric Feces: The Cultural Ecology Of Ancient Parasitism, Karl J. Reinhard
Karl Reinhard Publications
Several helminth parasites have been recovered from archaeological sites on the Colorado Plateau. These include Ascaris, Trichuris, Enterobius, Moniliformis, and tapeworms in the families Hymenolepidae and Taeniidae. The recovery of these animals demonstrates that cross-temporal: comparison of parasitism between different prehistoric lifestyles is possible. Such comparison might elucidate the effects of changing lifestyle and subsistance pattern on human parasitism.
Desiccated feces recovered from archaelogical deposits were studied. Hunter-gatherer feces were selected from Dust Devil Cave in southeastern Utah. Agriculturalist feces were studied from Antelope House, a cave site in northeastern Arizona, and Salmon Ruins, a Pueblo …
Habitat Suitability Index Models: Snowshoe Hare, R.G. Carreker
Habitat Suitability Index Models: Snowshoe Hare, R.G. Carreker
United States Department of Agriculture Wildlife Services: Staff Publications
This document is part of the Habitat Suitability Index (HSI) Model Series [Biological Report 82(10)] which provides habitat information useful for impact assessment and habitat management. Several types of habitat information are provided. The Habitat Use Information Section is largely constrained to those data that can be used to derive quantitative relationships between key environmental variables and habitat suitability. This information provides the foundation for the HSI model and may be useful in the development of other models more appropriate to specific assessment or evaluation needs. The HSI Model Section documents the habitat model and includes information pertinent to its …
Acuta Enews July & August 1985, Vol. 14, No. 7 & 8
Acuta Enews July & August 1985, Vol. 14, No. 7 & 8
ACUTA Newsletters
In This Issue
Party Line
Super-phone of future eyed by FCC
How Cellular Technology Works
The University of Chicago
Water Current, Volume 17, No. 4, July/August 1985
Water Current, Volume 17, No. 4, July/August 1985
Water Current Newsletter
Director's Report
Research Proposals Due
Rainwater Basin Tour
Nebraska Water Levels Rise for Fourth Year
Estimated Costs Vary for 1985 Irrigation
Research Review: Irrigation Scheduling Procedures with Limited Water for Improved Water Use Efficiency for Corn and Soybeans
Variation In Population Sex Ratio And Mating Success Of Asexual Lineages Of Alsophila Pometaria (Lepidoptera: Geometridae), Lawrence G. Harshman, Douglas J. Futuyma
Variation In Population Sex Ratio And Mating Success Of Asexual Lineages Of Alsophila Pometaria (Lepidoptera: Geometridae), Lawrence G. Harshman, Douglas J. Futuyma
Lawrence G. Harshman Publications
Populations of Alsophila pometaria (Harris) are largely gynogenetic and composed of asexual females that must mate with a conspecific male to reproduce. Within this asexual contingent, there are a variety of electrophoretically defined multilocus genotypes. In this study we found that populations differ in sex ratio. We also found that there is an indication of differential mating success among asexual genotypes in a population of A. pometaria.
Nebraska Bird Review (June 1985) 53(2), Whole Issue
Nebraska Bird Review (June 1985) 53(2), Whole Issue
Nebraska Bird Review
The Historic Breeding Distribution of the Least Tern in Nebraska … 26
Possible Addition of the Prairie Skink to the Diet of the Common Grackle … 36
Observations of the Barred Owl in Southeastern Nebraska … 37
The Eighty-fourth Annual Meeting … 38
Notes … 39
The Prairie Naturalist Volume 17, No. 2. June 1985
The Prairie Naturalist Volume 17, No. 2. June 1985
The Prairie Naturalist
Paul B. Kannowski, Editor
Nikki R. Seabloom, Assistant Editor
Douglas H. Johnson, Book Review Editor
TABLE OF CONTENTS
A CHECKLIST OF TEXAS ANTS ▪ G. C. Wheeler and J. Wheeler
HABITAT SELECTION BY SMALL MAMMALS OF THE TALL-GRASS PRAIRIE: EXPERIMENTAL PATCH CHOICE ▪ S. K. Peterson, G. A. Kaufman, and D. W. Kaufman
CORN CONSUMPTION BY WINTERING MALLARDS DURING MORNING FIELD-FLIGHTS ▪ R. J. Whyte and E. G. Bolen
CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA - 1984 ▪ R. N. Randall
MOUNTAIN PLOVER FOOD ITEMS ON AND ADJACENT TO A PRAIRIE DOG TOWN ▪ S. L. Olson
ECOLOGICAL DISTURBANCE IN …
The Eighty-Fourth Annual Meeting
The Eighty-Fourth Annual Meeting
Nebraska Bird Review
About 75 people participated in at least one of the events at the eighty-fourth Annual Meeting, held 18 and 19 May 1985 at the Eastern Nebraska 4-H Camp, adjacent to Schramm State Park, between Louisville and Gretna, in Sarpy County. There was the usual slide show Friday night. Saturday morning was available for birding. In the afternoon the following papers were presented:
Waterfowl Production in the Rainwater Basins—Robin Harding, Department of Biology, Kearney State College
Age and Reproductive Success in Northern Orioles—Thomas Labedz, Nebraska State Museum
A Comparative Analysis of Long-eared Owl Pellets—Russell Benedict and Ray Korpi, presented by Ray …
Possible Addition Of The Prairie Skink To The Diet Of The Common Grackle, Louis A. Somma
Possible Addition Of The Prairie Skink To The Diet Of The Common Grackle, Louis A. Somma
Nebraska Bird Review
On 8 June 1984, at the intersection of California Street and the Union Pacific railroad tracks, just west of Saddle Creek Road in Omaha, a Common Grackle (Quiscalus quiscala) was seen flying approximately 2 m above the observer, with a large adult prairie skink, (Eumeces septentrionalis) (Reptilia; Sauria) in its bill. The Grackle had difficulty flying, since the skink was somewhat heavy and struggling violently, The Grackle dropped to the ground about 7 m away and released the lizard. The skink lay on its back, twitching slightly. The distal half of its tail was missing. The …
The Probe, Issue 54 - June/July 1985
The Probe, Issue 54 - June/July 1985
The Probe: Newsletter of the National Animal Damage Control Association
THE PROBE
National Animal Damage Control Association
No. 54 June/July, 1985
NADCA Questionaire Returns
ADC to USDA
The American Tree Famer
Fleas, Ticks, and Cockroaches – Disease Transmitters
Wildlife Management on your Land
European Wild Pigs
The Nongame Act of 1980
ADC controlling Coyotes
Gophers Carrying Radioactive Soil
Directory Additions
Predator – Sandhill Crane Workshop
Central Texas Trappers Association
International Trade in Endangered Species of Wild Fauna and Flora
Price List: Chemical Repellents, Scare Devices, Traps, Barriers, Feeders, Excluders, Nest Boxes, Poisons/Fumigants
Social Behavior In Passalid Beetles (Coleoptera: Passalidae): Cooperative Brood Care, Jack C. Schuster, Laura B. Schuster
Social Behavior In Passalid Beetles (Coleoptera: Passalidae): Cooperative Brood Care, Jack C. Schuster, Laura B. Schuster
Entomology Papers from Other Sources
A brief summary is given concerning passalid social behavior in relation to their life cycle. Passalid pairs defend log tunnels and remain with off- spring from egg to adulthood. Parent-offspring cooperation involving care of other offspring is a step in the evolution of eusociality. Young adult passalids cooperated with their parents in repair of sibling pupal cases. Co- operative brood care between parents and juveniles has not been reported previously for non-Hymenopterous or non-Isopterous arthropods. The pres- ence of overlap of generations and cooperative brood care by at least temporarily non-reproductive adult individuals in certain passalid species suggest that we …
Pubertal Timing And Grade Effects On Adjustment, Anne C. Petersen, Lisa J. Crockett
Pubertal Timing And Grade Effects On Adjustment, Anne C. Petersen, Lisa J. Crockett
Department of Psychology: Faculty Publications
Effects on adjustment of biological maturation and social timing were com pared using data from a longitudinal sample of 335 young adolescents, who were followed from the sixth through eighth grades. Biological maturation was estimated from the relative timing of the adolescent growth spurt. Social timing was assessed by grade in school. Five adjustment constructs were examined: school achievement (course grades in five subjects), family relations (a 17-item scale), peer relations (a 10- item scale), body image (an 11-item scale), impulse control (an 8-item scale), and psychopathology (an 11-item emotional tone scale and an 11-item general psychopathology scale). All but …
Hydraulics Of Perforated Irrigation Trail Tube, John E. Gilley, Jan Feyen
Hydraulics Of Perforated Irrigation Trail Tube, John E. Gilley, Jan Feyen
Department of Agricultural and Biological Systems Engineering: Faculty Publications
The author presented a methodology for calculating the hydraulics of trail tubes for center-pivot irrigation systems. While he mentioned several possible difficulties with trail tube irrigation, and stated that they have potential benefits in energy saving and improvements in water-use efficiency, additional clarification and analysis are required before the procedures he presented can be used for the rational design of such systems.
First and most importantly, a potential error in the analysis should be mentioned and discussed. The author used the two-term infiltration model of Philip to describe the water intake beneath a center-pivot irrigation system. The assumption of one-dimensional …