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Articles 9361 - 9390 of 16020
Full-Text Articles in Entire DC Network
Behavioral Observations And Physiological Implications For White-Tailed Deer Treated With Two Different Immunocontraceptives, Gary J. Killian, Lowell A. Miller
Behavioral Observations And Physiological Implications For White-Tailed Deer Treated With Two Different Immunocontraceptives, Gary J. Killian, Lowell A. Miller
Wildlife Damage Management Conference
The results of a 6-year behavioral study of white-tailed deer (Odocoileus Viginianus) treated with two immunocontraceptive vaccines, porcine zona pellucida (PZP) and gonadotropin releasing hormone (GnRH) are summarized. Does were immunized late summer and early fall. In November, does were exposed to bucks and observations were made 2-3 times daily for one half hour through the end of February. Does were considered to be in estrus when they were the object of intensive sexual interest by the buck. Compared to controls, PZP-treated does had a significantly lower fawning rate and an increase in the average number of estrous cycles observed …
Ornamental And Turf Pest Control, Larry A. Sagers
Ornamental And Turf Pest Control, Larry A. Sagers
All Archived Publications
No abstract provided.
Management Guidelines For Sage Grouse And Sagebrush Ecosystems In Nevada, Bureau Of Land Management
Management Guidelines For Sage Grouse And Sagebrush Ecosystems In Nevada, Bureau Of Land Management
All U.S. Government Documents (Utah Regional Depository)
These management guidelines and supportive background information promote the conservation of sage grouse (Centrocercus urophasianus) and their sagebrush (Artemisia spp) habitats on Nevada public lands administered by Bureau of Land Management (BLM). The guidelines are intended to provide interim guidance to field managers, without restricting options currently being explored for regional, state, and local sage grouse/sagebrush conservation planning. The guidelines are a Nevada BLM, habitat-specific, adaptation of the recently updated, and soon to be finalized, Western Association of Wildlife Agencies (WAFWA) Draft Guidelines. The Nevada BLM guidelines apply the most current sage grouse science to BLM activities, within the context …
The Utah Statesman, September 25, 2000, Utah State University
The Utah Statesman, September 25, 2000, Utah State University
The Utah Statesman
Weekly student newspaper of Utah State University in Logan.
The Utah Statesman, September 15, 2000, Utah State University
The Utah Statesman, September 15, 2000, Utah State University
The Utah Statesman
Weekly student newspaper of Utah State University in Logan.
The Utah Statesman, September 11, 2000, Utah State University
The Utah Statesman, September 11, 2000, Utah State University
The Utah Statesman
Weekly student newspaper of Utah State University in Logan.
The Utah Statesman, September 8, 2000, Utah State University
The Utah Statesman, September 8, 2000, Utah State University
The Utah Statesman
Weekly student newspaper of Utah State University in Logan.
Western Rangeland Noxious Weeds: Collecting, Sharing And Using Information, U.S. Department Of Interior, U.S. Department Of Agriculture, Riley Memorial Foundation
Western Rangeland Noxious Weeds: Collecting, Sharing And Using Information, U.S. Department Of Interior, U.S. Department Of Agriculture, Riley Memorial Foundation
All U.S. Government Documents (Utah Regional Depository)
Western rangeland weeds such as yellow starthistle, leafy spurge, Canada thistle and Russian knapweed are causing tremendous losses to agricultural industries, including both crop and livestock production, and to environmental resources on private lands. Concurrently, many public lands managed by federal agencies are being steadily invaded. As a result, these lands held in the public trust are experiencing reductions in commodity yields, recreational opportunities, biodiversity and ecosystem function.
The Utah Statesman, September 6, 2000, Utah State University
The Utah Statesman, September 6, 2000, Utah State University
The Utah Statesman
Weekly student newspaper of Utah State University in Logan.
Computing Optimal Pumping Strategies For Groundwater Contaminant Plume Remediation, Richard C. Peralta, Alaa H. Aly
Computing Optimal Pumping Strategies For Groundwater Contaminant Plume Remediation, Richard C. Peralta, Alaa H. Aly
Civil and Environmental Engineering Faculty Publications
Simulation/Optimization (S/0) models can greatly simplify the process of designing remediation systems for contaminated groundwater. We describe some technical aspects of using S/0 models and possible S/0 model formulations for groundwater remediation design. We: discuss some S/0 model optimization algorithms; illustrate simple optimization problem solution; describe two real-world S/0 model applications; and demonstrate S/0 model application under uncertainty.
The Utah Statesman, August 30, 2000, Utah State University
The Utah Statesman, August 30, 2000, Utah State University
The Utah Statesman
Weekly student newspaper of Utah State University in Logan.
The Utah Statesman, August 28, 2000, Utah State University
The Utah Statesman, August 28, 2000, Utah State University
The Utah Statesman
Weekly student newspaper of Utah State University in Logan.
The Utah Statesman, August 2000, Orientation, Utah State University
The Utah Statesman, August 2000, Orientation, Utah State University
The Utah Statesman
Utah State University student newspaper orientation issue.
Soil Microclimate And Chemistry Of Spruce–Fir Tree Islands In Northern Utah, Helga Van Miegrot, Molly T. Hysell, Amber Denton Johnson
Soil Microclimate And Chemistry Of Spruce–Fir Tree Islands In Northern Utah, Helga Van Miegrot, Molly T. Hysell, Amber Denton Johnson
T.W. "Doc" Daniel Experimental Forest
No abstract provided.
Grass Pasture Response To Water And Nitrogen, Robert W. Hill, Robert Newhall, Scott Williams, Brian Andrew
Grass Pasture Response To Water And Nitrogen, Robert W. Hill, Robert Newhall, Scott Williams, Brian Andrew
All Current Publications
The objective of this project is to study the response of pasture grass varieties to weather, irrigation and fertility in a field experimental plot at a high elevation. The water variable is accomplished with a line source sprinkler irrigation system. Two nitrogen fertility levels were imposed on two of the grass varieties
1999 Annual Report, Various Authors
2000 Annual Report, Various Authors
Uv Effects Of Plant-Associated Pseudomonads, T. E. Koper, C. D. Miller, A. J. Anderson
Uv Effects Of Plant-Associated Pseudomonads, T. E. Koper, C. D. Miller, A. J. Anderson
Utah Space Grant Consortium
Concerns about dramatic changes in the Earth’s atmosphere, such as ozone depletion, make it imperative to study how microbial communities are responding to such changes that will increase UV irradiance. Ultraviolet A (UVA) and UVB irradiation on the plant pathogen, Pseudomonas syringae pv syringae (Pss), and a plant beneficial, saprophytic root-colonizer, Pseudomonas putida (Pp) impaired their survival. Stationary-phase cells of both Pss and Pp were more susceptible to fatal UV damage than logarithmic-phase cells. This observation suggests that an active metabolism is involved in responses to protect against UV. Mutants of Pss and Pp, with insertions in rpoS, …
Insights, Spring, 2000, Utah State University
Insights, Spring, 2000, Utah State University
Discovery Magazine
Bi-annual alumni newsletter for the College of Science of Utah State University in Logan.
Effects Of Forced Weaning On Mother-Daughter Associations And Reproduction In Bison (Bos Bison), Jennifer S. Brookshier
Effects Of Forced Weaning On Mother-Daughter Associations And Reproduction In Bison (Bos Bison), Jennifer S. Brookshier
Biology
While the social organization of ungulates has received much attention, the nature and extent of the mother-daughter association is still not fully known for some species. In bison, mothers and daughters have a long-term association that may extend beyond the age of weaning. This association is believed to facilitate the daughters' social integration into the herd. I compared the mother-daughter association for 29 yearling females that were forcibly weaned from their mothers to that of 19 yearling females that were naturally weaned. Forcibly weaned yearlings did not reassociate with their mothers following winter separation, while naturally weaned yearlings associated with …
Sexual Dichromatism In Bohemian Waxwings, James Brian Burns
Sexual Dichromatism In Bohemian Waxwings, James Brian Burns
Biology
If a species of birds is monomorphic, how do individuals identify members of the opposite sex? Birds may use cues in the ultraviolet wavelengths (350-400 nm), which are invisible to humans. This thesis presents evidence of sexual dichromatism in Bohemian Waxwings (Bombycilla garrulus). The strongest differences occurred in the tail coverts, the yellow tail tips, and the red waxy tips of the secondaries. Like other birds, waxwings derive colors from diet-based pigments and from synthesized colors. Because these color types differ in origin, each could provide different visual information about a bird's condition. This led to the testing …
Effects Of Carbohydrate Foods On Foraging Decisions Of The Parasitoid Bathyplectes Curculionis (Thomson) (Hymenoptera: Ichneumonidae), Helen Spafford Jacob
Effects Of Carbohydrate Foods On Foraging Decisions Of The Parasitoid Bathyplectes Curculionis (Thomson) (Hymenoptera: Ichneumonidae), Helen Spafford Jacob
Biology
In a series of field and laboratory experiments, I explored the trade-off between self-maintenance and current reproduction for the parasitoid Bathyplectes curculionis (Thomson)(Hymenoptera: Ichneumonidae), an economically important natural enemy of the alfalfa weevil, the most significant pest in forage alfalfa. Floral nectars, pea aphid honeydew, and artificial foods such as sugar sprays are likely to assist B. curculionis in meeting its self-maintenance needs. Once these needs are met then B. curculionis females may be more likely to search for hosts to parasitize. However, these foods must not only be available, but accessible, of high quality, and detectable, to be of …
The Utilization Of Steep Slopes By Desert Tortoises (Gopherus Agassizii) In The Western Mojave Desert, Ty J. Gardner
The Utilization Of Steep Slopes By Desert Tortoises (Gopherus Agassizii) In The Western Mojave Desert, Ty J. Gardner
Biology
Desert tortoises (Gopherus agassizii) were located on steep slopes at three sites in the western Mojave Desert. These sites were located at: 1) the rifle range of the Marine Corps Logistics Base, Barstow, California, 2) the southern boundary of the Fort Irwin National Training Center, California, immediately west of Manix Tank Trail, and 3) the Lava Range of the Marine Corps Air Ground Combat Center, Twentynine Palms, California. Additionally, a valley site at the Sand Hill range of the Marine Corps Air Ground Combat Center, Twentynine Palms, California, was included for comparison. Study tortoises were found on slopes …
Snfa, The Dictyostelium Discoideum Snf1/Ampk Protein Kinase, Sandy Sung
Snfa, The Dictyostelium Discoideum Snf1/Ampk Protein Kinase, Sandy Sung
Biology
SNF1/AMPK protein kinases are a conserved group of eukaryotic serine/threonine protein kinases that mediate a variety of stress responses, including the response to nutrient deprivation. This report describes the isolation of snfA, the Dictyostelium discoideum SNF1/AMPK ortholog, and an examination of snfA protein function. snfA is a single copy gene that encodes a predicted 80.5 kD polypeptide. A single 2.8 kb snfA transcript was present at nearly constant levels during vegetative growth and all stages of development. The predicted snfA protein consists of three domains: an amino terminal kinase domain that is highly conserved in other SNF1/AMPK protein kinases, …
Contributions Of Domain Four Segment Four Charges To Sodium Channel Activity, Jennifer L. Abbruzzese
Contributions Of Domain Four Segment Four Charges To Sodium Channel Activity, Jennifer L. Abbruzzese
Biology
Ionic currents flowing through voltage-gated sodium (Na+) channels generate the rising phase of action potentials. This process is essential for normal cellular excitability and it is important to investigate the structure/function relationships that allow Na+ channels to change conformations in response to membrane potential. The Na+ channel skeletal muscle (SkM) α subunit is made of four homologous domains (DI-IV), with six transmembrane segments (S1-6) in each domain. One transmembrane segment in the channel, segment four in domain four (DIVS4), appears to make critical contributions to several aspects of channel activity. In this study, wild type (WT) …
Effect Of Daily Fluctuations From Flaming Gorge Dam On Ice Processes In The Green River, John W. Hayse, Steven F. Daly, Andrew Tuthill, Richard A. Valdez, Bryan Cowdell, Gary Burton
Effect Of Daily Fluctuations From Flaming Gorge Dam On Ice Processes In The Green River, John W. Hayse, Steven F. Daly, Andrew Tuthill, Richard A. Valdez, Bryan Cowdell, Gary Burton
All U.S. Government Documents (Utah Regional Depository)
This report provides results and conclusions of a detailed investigation of ice processes in the main channel of the reach of the Green River between the downstream end of Split Mountain (River Mile [RM1] 320) and the Ouray, Utah Bridge (R.M248). The objective of the study was to examine the influence of daily fluctuations in water releases from Flaming Gorge Damon river ice processes in this reach, which serves as an overwintering area for endangered Colorado pikeminnow and razorback sucker. The objective of the study was met through examination of historical records of winter water and air temperatures, flow measurements, …
Utah State University Commencement, 2000 – Main Campus, Utah State University
Utah State University Commencement, 2000 – Main Campus, Utah State University
Commencement Programs
107th Annual Commencement of Utah State University
Aspects Of Insect Conservation: Community Effects Of Habitat Patch Edge, Area, And Shape, Sharon L. Osowski
Aspects Of Insect Conservation: Community Effects Of Habitat Patch Edge, Area, And Shape, Sharon L. Osowski
Biology
The findings of this study have implications for such conservation issues such as habitat fragmentation, reserve planning, and habitat conservation and ecosystem management. This study attempted to answer questions, using an empirical study, on aspects of habitat fragmentation. Current theory about reserve design suggests that: 1) larger areas have higher diversity/abundance than smaller areas; 2) square patches have higher diversity/abundance than linear patches; and 3) patches with hospitable matrices have higher diversity/abundance than inhospitable matrices. This study also adds to the knowledge regarding invertebrate responses to fragmentation. The experimental design was a split-plot multifactorial study. The edge factor had three …
Molecular And Morphological Identification Of An Endophytic Fusarium Isolated From Wheat And Characterization Of Its Laccases In Comparison To Affiliated Fusarium Isolates, Sun Il Kwon
Biology
A fungal isolate present as a seed endophyte caused disease in wheat and other cereals when grown under stressed conditions. The isolate was identified as a member of the Asian clade of the Gibberella fujikuroi species complex in the genus Fusarium, members of which are known as plant pathogens and producers of mycotoxins. The closest relative to the fungus was Fusarium proliferatum, although none of the previously described species was identical in all morphological and molecular phylogenetic characters. At least six laccase isozymes were detected in mycelial extracts or from extracellular culture filtrates of the Fusarium-wheat isolate. …
Effect Of Multiple Founder Events On Genetic Variation: Transplanted Populations Of Bighorn Sheep (Ovis Canadensis), Bernadette N. Graham
Effect Of Multiple Founder Events On Genetic Variation: Transplanted Populations Of Bighorn Sheep (Ovis Canadensis), Bernadette N. Graham
Biology
The use of reintroductions has become a widely used tool in the conservation of bighorn sheep (Ovis canadensis). In an effort to reestablish populations of bighorn sheep in Utah, 23 individuals from two existing populations in British Columbia, Canada, Tranquille and Harper Ranch, were transplanted to Antelope Island in the Great Salt Lake of Utah. The two British Columbian populations had been founded from a native population near William's Lake, also in British Columbia. Small transplanted populations may have lower levels of genetic variation relative to the source population due to the chance loss of alleles following the …