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Small Fish Species Of Arkansas Reservoirs, Thomas M. Buchanan Jan 2005

Small Fish Species Of Arkansas Reservoirs, Thomas M. Buchanan

Journal of the Arkansas Academy of Science

Sixty-six Arkansas reservoirs were sampled with rotenone from 1997 through 2004 to determine the distribution and species richness of small, nongame fish species in manmade lentic environments. Eighty-five small fish species distributed among 13 families were collected. Fish distribution and species richness varied by reservoir size, ecoregion, and reservoir type. Species richness was significantly correlated with reservoir size and the number of small species occurring in reservoir drainages. Some small species apparently maintained breeding populations in reservoirs, other species occurred in low numbers and may not have maintained breeding populations, and some species occurred sporadically, probably as stragglers from nearby …

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Distribution Of Bats In Bottomland Hardwood Forests Of The Arkansas Delta Region, H. Bobby Fokidis, Stephen C. Brandebura, Thomas S. Risch Jan 2005

Distribution Of Bats In Bottomland Hardwood Forests Of The Arkansas Delta Region, H. Bobby Fokidis, Stephen C. Brandebura, Thomas S. Risch

Journal of the Arkansas Academy of Science

Bat distribution data is incomplete for the delta region of Arkansas. We extensively surveyed 16 counties within the Mississippi alluvial plain that comprises the delta from late spring to early fall 2004 using mist nets. We obtained 44 new county records for 9 species: Myotis lucifigus, M. austroriparius, Pipistrellus subflavus, Eptesicus fuscus, Lasiurus seminolus, L. borealis, L. cinereus, Nycticeius humeralis, and Corynorhinus rafinesquii. We generated updated distribution maps for these species and eastward Arkansas range expansions were documented for L.seminolus. Possible sampling concerns and research directions are discussed in relation to the needs of bats inhabiting bottomland forests of the …

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Annotated Checklist Of The Amphipoda Of Arkansas With Emphasis Upon Groundwater Habitats, G. O. Graening, Michael E. Slay, John R. Holsinger Jan 2005

Annotated Checklist Of The Amphipoda Of Arkansas With Emphasis Upon Groundwater Habitats, G. O. Graening, Michael E. Slay, John R. Holsinger

Journal of the Arkansas Academy of Science

Based on recent collections and review of the literature, 20 species of freshwater amphipod crustaceans are listed from the state of Arkansas. Included are species from the families Allocrangonyctidae, Crangonyctidae, Gammaridae and Hyalellidae and the genera Allocrangonyx, Bactrurus, Crangonyx, Stygobromus, Gammarus, and Hyalella. Ten of the species are restricted to subterranean groundwaters, 2 are closely associated with groundwater but also occur in surface waters, and 8 are known primarily from surface waters. Two of the species are in the process of being described in the literature, whereas 2 remain only provisionally recognized to date. On the basis of this new …

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Quantification And Prediction Of Stream Dryness In The Interior Highlands, Justin M. Homan, Nicholas M. Girondo, Charles J. Gagen Jan 2005

Quantification And Prediction Of Stream Dryness In The Interior Highlands, Justin M. Homan, Nicholas M. Girondo, Charles J. Gagen

Journal of the Arkansas Academy of Science

Although ecological studies have noted streams drying in the Interior Highlands, published measurements of streambed dryness are lacking. Clearly, stream drying has the potential to affect benthic macroinvertebrate and fish communities. In 2003, we initiated an assessment of streambed dryness for three streams in the Ouachita Mountains representative of the Central Hills, Ridges, and Valleys. In the following summer, we applied the approach to 15 similar size watersheds in three distinct ecoregions of the Interior Highlands: Ouachita Mountains-Athens Plateau, Ozark Highlands-Springfield Plateau, and Lower Boston Mountains. Repeated dryness measurements were recorded in each stream and correlated to nearby USGS stream …

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Distribution And Status Of The Kiamichi Shiner, Nottropis Ortenburgeri Hubbs (Cyprinidae), Henry W. Robison Jan 2005

Distribution And Status Of The Kiamichi Shiner, Nottropis Ortenburgeri Hubbs (Cyprinidae), Henry W. Robison

Journal of the Arkansas Academy of Science

The Kiamichi shiner, Notropis ortenburgeri, a diminuitive, silvery, upland stream fish in southwestern Arkansas and eastern Oklahoma was studied from 1999-2001 to determine its distribution, habitat, and conservation status in Arkansas and Oklahoma. Eighty-five collections were made during the two-year study. The present distribution in Arkansas and Oklahoma is described as well as the conservation status of the Kiamichi shiner in both states.

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Synthesis And Evaluation Of New Cathepsin D Inhibitors, Rose M. Mcconnell, Walter E. Godwin, Kelley Sayyer, Carol Trana, Adam Green, Matthew Mcconnell, Ashley Young, Lauren Young, Susan E. Hatfield Jan 2005

Synthesis And Evaluation Of New Cathepsin D Inhibitors, Rose M. Mcconnell, Walter E. Godwin, Kelley Sayyer, Carol Trana, Adam Green, Matthew Mcconnell, Ashley Young, Lauren Young, Susan E. Hatfield

Journal of the Arkansas Academy of Science

Cathepsin D, a lysosomal aspartic protease, has been suggested to play a role in the metastatic potential of several types of cancer A high activated cathepsin D level in breast tumor tissue has been associated with an increased incidence of relapse and metastasis. High levels of active cathepsin D have also been found in colon cancer, prostate cancer, uterine cancer, and ovarian cancer. Hydroxyethyl isosteres with cyclic tertiary amine have proven to be clinically useful as inhibitors of aspartyl proteases, such as cathepsin D and the HIV1 aspartyl protease. Also cathepsin D has recently been associated with the development of …

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Seasonal Incidence Of Sperm Within The Spermathecae Of Ouachita Dusky Salamanders (Desmognathus Brimleyorum) In Arkansas, Stanley E. Trauth, Michelle N. Mary Jan 2005

Seasonal Incidence Of Sperm Within The Spermathecae Of Ouachita Dusky Salamanders (Desmognathus Brimleyorum) In Arkansas, Stanley E. Trauth, Michelle N. Mary

Journal of the Arkansas Academy of Science

We examined 91 adult female Ouachita dusky salamanders {Desmognathus brimleyorum) to determine the seasonal incidence of sperm within spermathecae. The spermatheca (sperm storage gland) along with supporting tissue was removed from the dorsal cloacal wall of each female and prepared for light microscopy. We recorded the reproductive condition of females (diameter of enlarged ovarian follicles =EOF) and found large aggregates of sperm within the spermathecae during all months, except February (no specimens available). The highest incidence of sperm in spermathecae occurred in July specimens (53%; n = 17). Although the known nesting season runs from July into August in this …

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Presettlement Pinus Tadea Mississippi Valley Alluvial Plain Of The Monroe County, Arkansas Area, Don C. Bragg Jan 2005

Presettlement Pinus Tadea Mississippi Valley Alluvial Plain Of The Monroe County, Arkansas Area, Don C. Bragg

Journal of the Arkansas Academy of Science

No abstract provided.

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Identification Of Cystacanths And Adults Of Oligacanthorhynchus Tortuosa, Macracanthorhynchus Ingens, And Macracanthorhynchus Hirudinaceus Based On Probiscis And Hook Morphometrics, Dennis J. Richardson Jan 2005

Identification Of Cystacanths And Adults Of Oligacanthorhynchus Tortuosa, Macracanthorhynchus Ingens, And Macracanthorhynchus Hirudinaceus Based On Probiscis And Hook Morphometrics, Dennis J. Richardson

Journal of the Arkansas Academy of Science

No abstract provided.

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Journal Of The Arkansas Academy Of Science - Volume 59 2005, Academy Editors Jan 2005

Journal Of The Arkansas Academy Of Science - Volume 59 2005, Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.

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Level And Source Of Supplemental Selenium For Beef Steers, Scott Fry, Elizabeth B. Kegley, M. Ellen Davis, Michael D. Ratcliff, Douglas L. Galloway, Ron A. Dvorak Jan 2005

Level And Source Of Supplemental Selenium For Beef Steers, Scott Fry, Elizabeth B. Kegley, M. Ellen Davis, Michael D. Ratcliff, Douglas L. Galloway, Ron A. Dvorak

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

Selenium (Se) is deficient in many Arkansas soils; therefore, an experiment was conducted on steers to evaluate the effects of two supplemental Se sources on performance, blood metabolites, and immune function. Thirty Angus-crossbred steers were blocked by weight and assigned within block to one of 15 pens (two steers/pen). Pens were assigned randomly within blocks to one of three dietary treatments consisting of a corn-soybean meal supplement devoid of supplemental Se (negative control, NC) or corn-soybean meal supplements providing 1.7 mg supplemental Se/d as sodium selenite (inorganic Se, ISe) or as Se yeast (organic Se, OSe). Steers were offered fescue …

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Incorporating Glass Transition Concepts To Explain Rice Milling-Quality Reductions During The Drying Process, Derek A. Schluterman, Terry J. Siebenmorgen Jan 2005

Incorporating Glass Transition Concepts To Explain Rice Milling-Quality Reductions During The Drying Process, Derek A. Schluterman, Terry J. Siebenmorgen

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

Previous research has indicated that while drying rough rice using air temperatures above the glass transition temperature (Tg), head rice yield (HRY) reductions are incurred if a state transition occurs when severe intra-kernel moisture content (MC) gradients are present. State transitions can occur by extended drying using high-temperature air or by cooling kernels below Tg before sufficient tempering has occurred. The objectives of this experiment were to determine the maximum MC removal per initial drying pass and the associated tempering durations required to prevent HRY reduction. Two long-grain cultivars, ‘Francis’ and ‘Wells’, at two harvest moisture contents (HMC) were used. …

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89th Annual Meeting, 2005. Program, Academy Editors Jan 2005

89th Annual Meeting, 2005. Program, Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.

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Abnormalities In The Ozark Hellbender, (Cryptobranchus Alleganiensis Bishopi) In Arkansas: A Comparison Between Two Rivers With A Historical Perspective, Waylon R. Hiler, Benjamin A. Wheeler, Stanley E. Trauth Jan 2005

Abnormalities In The Ozark Hellbender, (Cryptobranchus Alleganiensis Bishopi) In Arkansas: A Comparison Between Two Rivers With A Historical Perspective, Waylon R. Hiler, Benjamin A. Wheeler, Stanley E. Trauth

Journal of the Arkansas Academy of Science

We documented abnormalities of Ozark hellbender (Cryptobranchus alleganiensis bishopi) populations in the Eleven Point River (Randolph County, Arkansas) and the Spring River (Fulton County, Arkansas) as part of ongoing monitoring efforts in this species. We found abnormalities in 90% (9 of 10) and 40% (36 of 97) of hellbenders in the Spring River and Eleven Point River, respectively, during the 2003-2004 field seasons. Most abnormalities found in Eleven Point hellbenders were generally less invasive and seemed to be more intrinsic to the species' natural history (i.e., vicissitudes of living), whereas those found in Spring River hellbenders were gross morphological aberrations. …

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Crown Radius And Diameter At Breast Height Relationships For Six Bottomland Hardwood Species, Brian Roy Lockhart, Robert C. Weih Jr., Keith M. Smith Jan 2005

Crown Radius And Diameter At Breast Height Relationships For Six Bottomland Hardwood Species, Brian Roy Lockhart, Robert C. Weih Jr., Keith M. Smith

Journal of the Arkansas Academy of Science

The relationship between a tree's crown radius and diameter at breast height (DBH) has a variety of uses including forest competition studies, tree crown densities, spacing and stocking relationships, wildlife habitat suitability models, and tree volume estimations. Estimating DBH from mean crown radius (MCR) is of interest to natural resource managers because MCR can be estimated from high resolution digital imagery using remote sensing techniques. DBH is a common tree dimensional characteristic that is used to quantify tree and stand structure. This research presents MCR/DBH and DBH/MCR relationships for boxelder (Acer negundo L.), sweet pecan (Carya illinoensis (Wang) K.Koch), sugarberry …

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Status Survey Of The Arkansas Endemic Crayfish, Fallicambarus Gilpini Hobbs And Robinson, Henry W. Robison, Brian K. Wagner Jan 2005

Status Survey Of The Arkansas Endemic Crayfish, Fallicambarus Gilpini Hobbs And Robinson, Henry W. Robison, Brian K. Wagner

Journal of the Arkansas Academy of Science

Fieldwork was conducted during 2002-2003 on the rare, Arkansas endemic crayfish, Fallicambarus gilpini Hobbs and Robison. Collections at 87 localities revealed this crayfish at 8 sites, all located in southeastern Arkansas in Jefferson and Cleveland counties which significantly expands its known range. Fallicambarus gilpini was generally found inhabiting roadside ditches and areas of standing water where it was always taken from upslope areas away from the static water. A sex ratio of 1:1.3 males to females was determined for this species. Ovigerous females were collected from burrows on 20 March 2003. A conservation status of "threatened" is recommended for this …

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Songbird Inventory For Arkansas Post National Memorial, Philip A. Tappe Jan 2005

Songbird Inventory For Arkansas Post National Memorial, Philip A. Tappe

Journal of the Arkansas Academy of Science

Two geographically separate units of Arkansas Post National Memorial were surveyed via fixed-radius plots to document songbird species composition, richness, and diversity by migratory status and nesting guild. At the Memorial Unit, 60 species vere recorded with the Brown-headed Cowbird, Red-winged Blackbird, and Northern Cardinal being most common. individuals of these three species comprised 30% of the total number of birds recorded despite representing only 5% of the species encountered. About 2 1/2 times more resident birds were recorded than migratory birds. However, species richness and diversity of resident and migratory species were similar. The number of individuals, species richness, …

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Mapping Of Ssdna Nicks Within Dsdna Genomes By Two-Dimensional Gel Electrophoresis, Wayne P. Wahls, K. Mark Dewall, Mari K. Davidson Jan 2005

Mapping Of Ssdna Nicks Within Dsdna Genomes By Two-Dimensional Gel Electrophoresis, Wayne P. Wahls, K. Mark Dewall, Mari K. Davidson

Journal of the Arkansas Academy of Science

DNA molecules within chromosomes undergo constant, dynamic changes yet maintain the integrity of the primary DNA sequence. DNA replication, adjustment of helical density, resolution of catenenes, repair of DNA damage, and homologous recombination each involve breakage and religation of the phosphate backbone of the double helix. Although the analysis of dsDNA breaks is facile, the analysis of ssDNA nicks is not. The principal impediment is that conventional, one-dimensional electrophoresis methods cannot readily detect ssDNA nicks in the context of dsDNA breaks. We therefore developed a two dimensional (native/denaturing) gel electrophoresis approach to map the positions of ssDNA nicks. Analysis of …

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Response Of An Arkansas White-Tailed Deer Population To Harvest, Robert E. Kissell Jr., Philip A. Tappe Jan 2005

Response Of An Arkansas White-Tailed Deer Population To Harvest, Robert E. Kissell Jr., Philip A. Tappe

Journal of the Arkansas Academy of Science

No abstract provided.

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Revised Publication Policies And Instructions For Prospecive Authors, Academy Editors Jan 2005

Revised Publication Policies And Instructions For Prospecive Authors, Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.

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Inhibitory Activity Against Listeria Monocytogenes By Soy-Protein Edible Film Containing Grape Seed Extract, Nisin, And Malic Acid, Brittany Adams, T. Sivarooban, Navam S. Hettiarachchy, M. G. Johnson Jan 2005

Inhibitory Activity Against Listeria Monocytogenes By Soy-Protein Edible Film Containing Grape Seed Extract, Nisin, And Malic Acid, Brittany Adams, T. Sivarooban, Navam S. Hettiarachchy, M. G. Johnson

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

The frequent outbreaks of food-borne illness necessitate development of intervention strategies, including the use of natural antimicrobials. Listeria monocytogenes is one of the most important bacterial pathogens that recently has caused a significant number of outbreaks. With the aim of finding potent natural agents that can minimize pathogen contamination concerns, this study evaluated the inhibitory activities against L. monocytogenes of grape seed extract (GSE), malic acid (M), nisin (N), and combinations thereof incorporated into soy-protein edible films. Soy-protein films with/without addition of antimicrobial agents (GSE: 1%, Nisin: 10,000 IU/g, Malic acid: 1%, and their combinations) were prepared and evaluated for …

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Arkansas Water Resources Center Annual Technical Report, 2004, Arkansas Water Resources Center Dec 2004

Arkansas Water Resources Center Annual Technical Report, 2004, Arkansas Water Resources Center

Arkansas Water Resources Center Annual Report

No abstract provided.

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Partners In Poultry Science, December 2004, Dale Bumpers College Of Agricultural, Food, And Life Sciences (University Of Arkansas, Fayetteville). Center Of Excellence For Poultry Science Dec 2004

Partners In Poultry Science, December 2004, 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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Arkansas Animal Science Department Report 2004, Zelpha B. Johnson, D. Wayne Kellogg Dec 2004

Arkansas Animal Science Department Report 2004, Zelpha B. Johnson, D. Wayne Kellogg

Arkansas Agricultural Experiment Station Research Series

No abstract provided.

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Jeanne Clery Disclosure Of Campus Security Policy And Campus Crime Statistics Report, 2003, University Of Arkansas, Fayetteville. Police Department Oct 2004

Jeanne Clery Disclosure Of Campus Security Policy And Campus Crime Statistics Report, 2003, University Of Arkansas, Fayetteville. Police Department

Jeanne Clery Disclosure of Campus Security Policy

No abstract provided.

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Summaries Of Arkansas Cotton Research 2003, Derrick M. Oosterhuis Oct 2004

Summaries Of Arkansas Cotton Research 2003, Derrick M. Oosterhuis

Arkansas Agricultural Experiment Station Research Series

No abstract provided.

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Avian Advice, Fall 2004, Dale Bumpers College Of Agricultural, Food, And Life Sciences (University Of Arkansas, Fayetteville). Center Of Excellence For Poultry Science, University Of Arkansas (System). Cooperative Extension Service Sep 2004

Avian Advice, Fall 2004, Dale Bumpers College Of Agricultural, Food, And Life Sciences (University Of Arkansas, Fayetteville). Center Of Excellence For Poultry Science, University Of Arkansas (System). Cooperative Extension Service

Avian Advice

No abstract provided.

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Graduate, Fall-Winter 2004, Dale Bumpers College Of Agricultural, Food, And Life Sciences (University Of Arkansas, Fayetteville) Sep 2004

Graduate, Fall-Winter 2004, 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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2003 Pollutant Loads Kings River Near Berryville, Arkansas, Marc A. Nelson, L. Wade Cash Sep 2004

2003 Pollutant Loads Kings River Near Berryville, Arkansas, Marc A. Nelson, L. Wade Cash

Arkansas Water Resources Center Technical Reports

An automatic sampler and a USGS gauging station were established in 1998 and water quality sampling was begun in 1999 on the Kings River near Berryville, Arkansas. Continuous stage and discharge measurements and frequent water quality sampling have been used to determine pollutant concentrations and loads in the river. This report presents the results from the sampling and analysis for January 1, 2003 to December 31, 2003.

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Illinois River 2003 Pollutant Loads At Arkansas Highway 59 Bridge, Marc A. Nelson, L. Wade Cash Sep 2004

Illinois River 2003 Pollutant Loads At Arkansas Highway 59 Bridge, Marc A. Nelson, L. Wade Cash

Arkansas Water Resources Center Technical Reports

Automatic water samplers and a U. S. Geological Survey gauging station were established in 1995 on the main stem of the Illinois River at the Arkansas Highway 59 Bridge. Since that time, continuous stage and discharge measurements and water quality sampling have been used to determine pollutant concentrations and loads in the Arkansas portion of the Illinois River. This report represents the results from the measurement and sampling by the Arkansas Water Resources Center -Water Quality Lab for January 1, 2003 to December 31, 2003.

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