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Mortality Of Adult White-Tailed Deer On Fort Chaffee, Arkansas, Gregory G. Humphreys, Thomas A. Nelson Jan 2000

Mortality Of Adult White-Tailed Deer On Fort Chaffee, Arkansas, Gregory G. Humphreys, Thomas A. Nelson

Journal of the Arkansas Academy of Science

We conducted a telemetry study on Fort Chaffee, Arkansas, to estimate the extent, timing, and causes of mortality among resident adult white-tailed deer {Odocoileus virginianus). Twenty-seven deer were captured, radio-collared and monitored for 1 yr to assess seasonal mortality. Annual mortality rates differed considerably between sexes, with males exhibiting a much higher rate (86.1%) than females (5.3%). The primary causes of death among males were poaching, predation by coyotes, and legal harvest. Legal harvest by a gun-hunter accounted for the only female mortality. No mortalities were attributed to military exercises, which occurred frequently on the study area. Our results suggest …

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Feeding Relationship Between Two Synoptic, Morphologically Similar Fishes, The Western Mosquitofish (Gambusia Affinis) And The Blackspotted Topminnow (Fundulus Olivaceus), Allyson R. Neely, Edmund J. Pert Jan 2000

Feeding Relationship Between Two Synoptic, Morphologically Similar Fishes, The Western Mosquitofish (Gambusia Affinis) And The Blackspotted Topminnow (Fundulus Olivaceus), Allyson R. Neely, Edmund J. Pert

Journal of the Arkansas Academy of Science

We sampled fish during the summer of 1999, in Caney Bayou on the campus of the University of Arkansas at Pine Bluff, Jefferson County, in order to study the feeding relationship between the western mosquitofish (Gambusia ajfinis) and the blackspotted topminnow (Fundulus olivaceus). We identified and enumerated the diet items of 56 blackspotted topminnows and 28 mosquitofish that were captured using electroshocking, seining, and dipnetting. Pooled diet items for each species were analyzed using a variety of approaches: percent of diet composition, frequency of occurrence, Levins' measure of diet breadth, and Morisita's measure of diet overlap. Twenty-one percent of mosquitofish …

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Record Of The Lake Sturgeon, Acipenser Fulvescens Rafinesque, From The Caddo River (Ouachita River Drainage), Arkansas, Betty G. Crump, Henry W. Robison Jan 2000

Record Of The Lake Sturgeon, Acipenser Fulvescens Rafinesque, From The Caddo River (Ouachita River Drainage), Arkansas, Betty G. Crump, Henry W. Robison

Journal of the Arkansas Academy of Science

No abstract provided.

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First Record Of The Subterranean Amphipod Crustacean Allocrangonyx Hubrichti (Allocragonyctidae) In Arkansas, Henry W. Robison, John R. Holsinger Jan 2000

First Record Of The Subterranean Amphipod Crustacean Allocrangonyx Hubrichti (Allocragonyctidae) In Arkansas, Henry W. Robison, John R. Holsinger

Journal of the Arkansas Academy of Science

No abstract provided.

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Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 1 2000, Several Authors Jan 2000

Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 1 2000, Several Authors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

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Contents, Discovery Editors Jan 2000

Contents, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

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Letter From The Dean, Charles J. Scifres Jan 2000

Letter From The Dean, Charles J. Scifres

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

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Instructions For Authors, Discovery Editors Jan 2000

Instructions For Authors, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

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Stock Market Reactions To Unfavorable Product Information: A Case Study Of Comments On Beef Safety Made On An Oprah Winfrey Show, Elpida Ormanidou, Michael Thomsen Jan 2000

Stock Market Reactions To Unfavorable Product Information: A Case Study Of Comments On Beef Safety Made On An Oprah Winfrey Show, Elpida Ormanidou, Michael Thomsen

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

This study examines the impact of unfavorable media coverage on the stock market prices of major food companies, an issue of increasing importance to the food industry. The study focuses on the 16 April 1996 Oprah Winfrey Show, a popular television program that raised questions about the safety of the U.S. beef supply. The show resulted in considerable controversy, and some cattle feeders blamed the show for a drop in cattle prices. The focus of this study is on the impact of the program at other stages of the food system. We examined the stock returns of two major beef …

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Reproductive Behavior Of The Emu, Reema A. Persad, Douglas James, Nicholas B. Anthony Jan 2000

Reproductive Behavior Of The Emu, Reema A. Persad, Douglas James, Nicholas B. Anthony

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Members of a flock of male and female emus were observed in an ethological experiment designed to investigate trends in reproductive behavior exhibited during the North American mating season, which lasts from October to mid-March. Observations were made at dawn, noon, and dusk from December 1999 to mid-March 2000, and the only behaviors that were consistently expressed during these times were pecking, strutting, exclusive, and male and female sexual activities (defined in text). Though statistical significance was found between male strutting behavior and female sexual activity in the December observation period, no overall significance or significance at other observation periods …

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Abstracts From The Student Presentations Of The Arkansas Chapter Of Gamma Sigma Delta, Discovery Editors Jan 2000

Abstracts From The Student Presentations Of The Arkansas Chapter Of Gamma Sigma Delta, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

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Livability Of Leghorn Balut Embryos Stored Under Varying Temperatures And Storage Times, Joyce Jong, F. Dustan Clark Jan 2000

Livability Of Leghorn Balut Embryos Stored Under Varying Temperatures And Storage Times, Joyce Jong, F. Dustan Clark

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Baluts are fertile chicken or duck eggs that have been incubated and removed from the incubator prior to hatching for consumption. Chicken eggs are incubated for 11 to 14 days and duck eggs are incubated for 16 to 20 days. Baluts have an extremely specialized consumer market, with the majority of its consumers of Filipino decent. Current U.S. Department of Agriculture regulations for the storage of baluts prior to sale is 7.2ºC, the same as for infertile commercial table eggs. Consumer preference is to purchase live baluts for consumption. Since exposure to 7.2ºC causes embryo mortality within 8 hours of …

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Growth Curves Of Four Species Of Commercially Valuable Freshwater Mussels (Bivalva: Unionidae), Alan D. Christian, Chris L. Davidson, William R. Posey Ii, Peter J. Rust, Jerry L. Farris, John L. Harris, George L. Harp Jan 2000

Growth Curves Of Four Species Of Commercially Valuable Freshwater Mussels (Bivalva: Unionidae), Alan D. Christian, Chris L. Davidson, William R. Posey Ii, Peter J. Rust, Jerry L. Farris, John L. Harris, George L. Harp

Journal of the Arkansas Academy of Science

North American freshwater mussels (Bivalvia: Unionidae) have been exploited commercially for over 100 years and have been regulated using shell size limits and/or harvest seasons. Presently, freshwater mussels are considered a threatened faunal group in North America due to the large numbers of endangered, threatened or special concern species. Therefore, management of this fauna should emphasize their long-term sustainability. The objectives of this study were 1) to construct von Bertalanffy growth curves for selected "commercially-most-valuable" species, Fusconaia ebena, Megalonaias nervosa, Amblema plicata and Quadrula quadrula, from five rivers and two reservoirs, 2) to compare species-specific von Bertalanffy growth curves from …

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Physicochemical Characteristics And Macroinvertebrate Assemblages Of Riffles Upstream And Downstream Of A Streambank Impacted By Unrestricted Cattle Access, Ronald L. Johnson, Daniel D. Ward, Richard S. Grippo Jan 2000

Physicochemical Characteristics And Macroinvertebrate Assemblages Of Riffles Upstream And Downstream Of A Streambank Impacted By Unrestricted Cattle Access, Ronald L. Johnson, Daniel D. Ward, Richard S. Grippo

Journal of the Arkansas Academy of Science

Riparian zones are important contributors to stream ecosystem health. Alteration of such areas can change stream structure and function, resulting in modified productivity and hydrologic patterns. We studied two riffle sites on the South Fork of the Spring River in Fulton County, AR upstream and downstream of a streambank ostensibly degraded by unrestricted cattle access. The two sites were measured for differences in physical habitat (including bank width, stream velocity, depth, substrate composition, and embeddedness), chemical characteristics (including dissolved oxygen, pH, conductivity, turbidity and total suspended solids) and biological characteristics (including benthic macroinvertebrate community composition, similarity, and standing crop). Measurements …

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New Arkansas Records For Two Nonindigenous Fish Species, With A Summary Of Previous Introductions Of Nonnative Fishes In Arkansas, Thomas M. Buchanan, Jerry Smith, Diana Saul, Jeff Farwick, Tim Burnley, Mark Oliver, Ken Shirley Jan 2000

New Arkansas Records For Two Nonindigenous Fish Species, With A Summary Of Previous Introductions Of Nonnative Fishes In Arkansas, Thomas M. Buchanan, Jerry Smith, Diana Saul, Jeff Farwick, Tim Burnley, Mark Oliver, Ken Shirley

Journal of the Arkansas Academy of Science

No abstract provided.

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Large Pleistocene Box Turtle From Southwest Arkansas, Leo Carson Davis, John G. Scoggins, J. Alan Holman Jan 2000

Large Pleistocene Box Turtle From Southwest Arkansas, Leo Carson Davis, John G. Scoggins, J. Alan Holman

Journal of the Arkansas Academy of Science

No abstract provided.

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Curly-Tail Malformity In Hatchlings Of The Alligator Snapping Turtle, Macroclemys Temminckii (Testudines: Chelydridae) In Arkansas, Malcolm L. Mccallum, Stanley E. Trauth Jan 2000

Curly-Tail Malformity In Hatchlings Of The Alligator Snapping Turtle, Macroclemys Temminckii (Testudines: Chelydridae) In Arkansas, Malcolm L. Mccallum, Stanley E. Trauth

Journal of the Arkansas Academy of Science

No abstract provided.

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Breeding Mortality In The Wood Frog, Rana Sylvatica (Anura: Ranidae), From Northcentral Arkansas, Stanley E. Trauth, Malcolm L. Mccallum, Michael E. Cartwright Jan 2000

Breeding Mortality In The Wood Frog, Rana Sylvatica (Anura: Ranidae), From Northcentral Arkansas, Stanley E. Trauth, Malcolm L. Mccallum, Michael E. Cartwright

Journal of the Arkansas Academy of Science

No abstract provided.

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Home Ranges And Movements Of Adult Deer On Fort Chaffee, Arkansas, Gregory G. Humphreys, Thomas A. Nelson Jan 2000

Home Ranges And Movements Of Adult Deer On Fort Chaffee, Arkansas, Gregory G. Humphreys, Thomas A. Nelson

Journal of the Arkansas Academy of Science

We radio-tracked 27 white-tailed deer (Odocoileus virginianus) weekly for one year on Fort Chaffee, Arkansas, to investigate their seasonal home ranges and movements between hunted areas and refuges on this military base. This work resulted in2,123 separate radiolocations, of which 85% (1,799) were suitable for use in home range analyses. We used the McPAAL computer package to estimate home range using the Harmonic Mean and minimum convex polygon (MCP) methods. Harmonic mean estimates were based on 95% contour lines. Home range size differed between the sexes and methods. Male home ranges were larger than those of females (t= 3.32, P<0.01; harmonic mean) (t=2.07, P<0.05; MCP). Average home range sizes for males and females based on the harmonic mean method were estimated to be 483 ha and 181 ha, respectively, whereas home range estimates for males and females using the MCP method were 636 ha and 289 ha, respectively. The average home range size for all deer was 259 ha (harmonic mean) and 379 ha (MCP). We found no evidence that females restricted their home ranges during the fawning period. However, females' home ranges expanded during the breeding season, perhaps to find mates. Few deer moved to refuge areas that were off-limits to hunters during the hunting season.

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Winter Breeding As A Common Occurrence In The Ringed Salamander, Ambystoma Annulatum (Caudata: Ambystomatidae), In The Ozark National Forest Of Northcentral Arkansas, Stanley E. Trauth Jan 2000

Winter Breeding As A Common Occurrence In The Ringed Salamander, Ambystoma Annulatum (Caudata: Ambystomatidae), In The Ozark National Forest Of Northcentral Arkansas, Stanley E. Trauth

Journal of the Arkansas Academy of Science

No abstract provided.

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Occurrence Of A Second Subspecies Of Box Turtle (Terrapene Carolina), In Arkansas, C. Renn Tumlison, Anthony Rocconi Jan 2000

Occurrence Of A Second Subspecies Of Box Turtle (Terrapene Carolina), In Arkansas, C. Renn Tumlison, Anthony Rocconi

Journal of the Arkansas Academy of Science

No abstract provided.

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Arkansas Animal Science Department Report 1999, Zelpha B. Johnson, D. Wayne Kellogg Jan 2000

Arkansas Animal Science Department Report 1999, Zelpha B. Johnson, D. Wayne Kellogg

Arkansas Agricultural Experiment Station Research Series

No abstract provided.

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Growth And Performance Of Broiler Chicks During The Starter And Grower Phases In Phase-Feeding, L. Niki Loupe, Jason L. Emmert Jan 2000

Growth And Performance Of Broiler Chicks During The Starter And Grower Phases In Phase-Feeding, L. Niki Loupe, Jason L. Emmert

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

An experiment was conducted to evaluate the efficacy of a nutrition program referred to as “phase-feeding” (PF) over the first 6 weeks posthatching. Diets were formulated using amino acid recommendations from the National Research Council (NRC) (1994) or from linear regression equations generated from best estimates of lysine (Lys), sulfur amino acid (SAA), and threonine (Thr) requirements. Regression equations were used to predict weekly Lys, SAA, and Thr requirements for use in a PF regimen that involved lowering amino acid levels following each respective week of the experiment, resulting in six diets fed over the 6-week period. Over the entire …

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Feasibility Of Inducing Overlap Immunologic Competence In Gallinaceous Birds With Ascardia Dissimilis And A. Galli, Julie Hamilton, Thomas A. Yazwinski Jan 2000

Feasibility Of Inducing Overlap Immunologic Competence In Gallinaceous Birds With Ascardia Dissimilis And A. Galli, Julie Hamilton, Thomas A. Yazwinski

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Chickens and turkeys are routinely infected with the roundworms Ascaridia galli and A. dissimilis, respectively. The current study was conducted to gather basic information on these worms and to determine whether heterologous infections (chicken worms in turkeys and turkey worms in chickens) would be successful. Chickens and turkeys were obtained at day of hatch, brooded to 7 days of age, and placed in pens (25/pen) according to infection as received at 7 days of age: homologous, heterologous and control (no infection). Bird weights, mortalities, and feed efficiencies were monitored for 3 weeks postinfection, at which time all birds were killed …

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Arkansas Water Resources Center Annual Technical Report, 1999, Arkansas Water Resources Center Dec 1999

Arkansas Water Resources Center Annual Technical Report, 1999, Arkansas Water Resources Center

Arkansas Water Resources Center Annual Report

No abstract provided.

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Annual Financial Report, 1998-1999, University Of Arkansas, Fayetteville Nov 1999

Annual Financial Report, 1998-1999, University Of Arkansas, Fayetteville

Annual Financial Report

No abstract provided.

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Partners, November 1999, Dale Bumpers College Of Agricultural, Food, And Life Sciences (University Of Arkansas, Fayetteville). Center Of Excellence For Poultry Science Nov 1999

Partners, November 1999, Dale Bumpers College Of Agricultural, Food, And Life Sciences (University Of Arkansas, Fayetteville). Center Of Excellence For Poultry Science

Partners

No abstract provided.

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Models Of Fsa Guaranteed Loan Use Volume And Loss Claims Among Arkansas Commercial Banks, Bruce L. Dixon, Bruce L. Ahrendsen, Scott M. Mccollum Nov 1999

Models Of Fsa Guaranteed Loan Use Volume And Loss Claims Among Arkansas Commercial Banks, Bruce L. Dixon, Bruce L. Ahrendsen, Scott M. Mccollum

AAES Research Reports and Research Bulletins

The Farm Service Agency (FSA) guaranteed loan programs are an important source of credit to production agriculture. The two major guaranteed loan programs are the operating loan (OL) program and the farm ownership (FO) loan program. Guaranteed loans insure payment to the lender of up to 95% of the losses in the event of borrower default. FSA has historically been involved in lending to farm operators via direct loans, but emphasis has changed over the last two decades to making guaranteed loans the primary source of FSA associated lending to production agriculture. This study seeks to determine what characteristics of …

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Functional Enucleation Of Bovine Oocytes, Charles F. Rosenkrans Jr., Eddie J. Wagoner Sep 1999

Functional Enucleation Of Bovine Oocytes, Charles F. Rosenkrans Jr., Eddie J. Wagoner

Patents Granted

Provides a method of forming recipient oocytes. The method generally include taking a cumulus-free oocytes, and separating the chromosomal material from the oocyte by centrifuging against a density gradient material to force the chromosomal material to pass through the cytoplasmic membrane. A method of cloning is also describe that fuses a recipient oocyte with a donor cell.

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Graduate, Fall-Winter 1999, Dale Bumpers College Of Agricultural, Food, And Life Sciences (University Of Arkansas, Fayetteville) Sep 1999

Graduate, Fall-Winter 1999, Dale Bumpers College Of Agricultural, Food, And Life Sciences (University Of Arkansas, Fayetteville)

Graduate

"For alumni and friends of the Dale Bumpers College of Agricultural, Food and Life Sciences and the University of Arkansas System Division of Agriculture."

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