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Journal of the Arkansas Academy of Science

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Articles 1 - 30 of 1248

Full-Text Articles in Life Sciences

A Preliminary Checklist Of The Stoneflies (Arthropoda: Insecta: Plecoptera) Of Arkansas, Henry W. Robison, Chris T. Mcallister Jan 2018

A Preliminary Checklist Of The Stoneflies (Arthropoda: Insecta: Plecoptera) Of Arkansas, Henry W. Robison, Chris T. Mcallister

Journal of the Arkansas Academy of Science

Seventy-seven species of stoneflies representing 8 families and 24 genera are herein reported from Arkansas. The most diverse families of state stoneflies were Perlidae (26 species), Capniidae (14 species), and Perlodidae (12 species) while Pteronarcyidae had only a single representative species. Additional taxa will surely be added to the list with future taxonomic studies incorporating molecular analyses.


Gene Flow And Genetic Structure Of Two Of Arkansas’S Rarest Darter Species (Teleostei: Percidae), The Arkansas Darter, Etheostoma Cragini, And The Least Darter, E. Microperca, Justin Baker, Brian Wagner, Robert Wood Jan 2018

Gene Flow And Genetic Structure Of Two Of Arkansas’S Rarest Darter Species (Teleostei: Percidae), The Arkansas Darter, Etheostoma Cragini, And The Least Darter, E. Microperca, Justin Baker, Brian Wagner, Robert Wood

Journal of the Arkansas Academy of Science

Distinguishing the effects of naturally caused historical fragmentation from those of contemporary landscape modification is critically important to understanding the consequences of human influences on patterns of gene flow and population dynamics. Nonetheless, relatively few recent studies focusing on this issue have dealt with species that showed evidence of historical fragmentation. In the current study, we disentangled the effects of fragmentation operating over separate timescales on two darter species, Etheostoma cragini and E. microperca, from the Ozark Highlands. Formerly more wide-spread within this region in Arkansas, these species now occur only in highly isolated habitats (i.e., spring-runs). We separated ...


Update Of Distribution Of The Chestnut Lamprey In Arkansas, Jeremiah Salinger, Ronald L. Johnson, Brian Wagner Jan 2018

Update Of Distribution Of The Chestnut Lamprey In Arkansas, Jeremiah Salinger, Ronald L. Johnson, Brian Wagner

Journal of the Arkansas Academy of Science

Most lamprey species other than sea lampreys have been poorly studied in North America. The chestnut lamprey, Ichthyomyzon castaneus, has a distribution within the Mississippi River and Hudson Bay drainage systems, and the Great Lakes. Since the text Fishes of Arkansas was published in 1988, few papers have been published to update the statewide distribution of this lamprey. We incorporated our electrofishing sampling results with gray and published literature to describe the distribution of this species in the drainage basins of the State of Arkansas. Reported are records of 250 chestnut lamprey specimens, over a 90 year period, from 47 ...


Second Record Of Gray-Headed Junco (Junco Hyemalis Caniceps) In Arkansas, Kimberly G. Smith Jan 2018

Second Record Of Gray-Headed Junco (Junco Hyemalis Caniceps) In Arkansas, Kimberly G. Smith

Journal of the Arkansas Academy of Science

No abstract provided.


Observations Of Townsend’S Solitaires (Myadestes Townsendi) On Mount Magazine In Logan County, Arkansas, Don R. Simons, Kimberly G. Smith Jan 2018

Observations Of Townsend’S Solitaires (Myadestes Townsendi) On Mount Magazine In Logan County, Arkansas, Don R. Simons, Kimberly G. Smith

Journal of the Arkansas Academy of Science

No abstract provided.


House Finch (Haemorhous Mexicanus) Nesting In December In Arkansas, Kimberly G. Smith Jan 2018

House Finch (Haemorhous Mexicanus) Nesting In December In Arkansas, Kimberly G. Smith

Journal of the Arkansas Academy of Science

No abstract provided.


Proportionality Of Population Descriptors Of Helminth Infections Of Smallmouth Bass From The Buffalo National River, James J. Daly Sr., Ken Wagner Jan 2018

Proportionality Of Population Descriptors Of Helminth Infections Of Smallmouth Bass From The Buffalo National River, James J. Daly Sr., Ken Wagner

Journal of the Arkansas Academy of Science

No abstract provided.


New Records Of The American Badger (Taxidea Taxus) In Arkansas, With An Updated Distribution Map, Renn Tumlison, D. Blake Sasse Jan 2018

New Records Of The American Badger (Taxidea Taxus) In Arkansas, With An Updated Distribution Map, Renn Tumlison, D. Blake Sasse

Journal of the Arkansas Academy of Science

No abstract provided.


Distribution Of Dracunculus Sp. Infection In River Otters (Lontra Canadensis) In Arkansas, Renn Tumlison, Allison Surf, Heather May Jan 2018

Distribution Of Dracunculus Sp. Infection In River Otters (Lontra Canadensis) In Arkansas, Renn Tumlison, Allison Surf, Heather May

Journal of the Arkansas Academy of Science

No abstract provided.


Distribution Of The Highland Stoneroller (Campostoma Spadiceum) In Southern Arkansas, Renn Tumlison, Henry W. Robison Jan 2018

Distribution Of The Highland Stoneroller (Campostoma Spadiceum) In Southern Arkansas, Renn Tumlison, Henry W. Robison

Journal of the Arkansas Academy of Science

No abstract provided.


Incidental Captures Of Plains Spotted Skunks (Spilogale Putorius Interrupta) By Arkansas Trappers, 2012-2017, D. Blake Sasse Jan 2018

Incidental Captures Of Plains Spotted Skunks (Spilogale Putorius Interrupta) By Arkansas Trappers, 2012-2017, D. Blake Sasse

Journal of the Arkansas Academy of Science

Arkansas trappers were surveyed following the 2012 and four subsequent trapping seasons regarding accidental captures of spotted skunks while attempting to trap other species. A total of 132 trappers reported capturing spotted skunks although further investigation confirmed the validity of only 42 reports from trappers that caught a total of 60 spotted skunks. Incidental captures were rare; only 0.35-1.29% of trappers each year caught spotted skunks and came primarily from the Ozark and Ouachita regions of the state.


Primeness In Early Season Arkansas Raccoon Pelts, D. Blake Sasse Jan 2018

Primeness In Early Season Arkansas Raccoon Pelts, D. Blake Sasse

Journal of the Arkansas Academy of Science

Trapping seasons in the United States are generally set around the time of the year when pelts are in “prime” condition and are in their most valuable state. In order to assess whether the start of the Arkansas trapping season is at an appropriate date 122 raccoons were captured during the month of November in 2014 and 2015. Based on the evaluation of experienced fur dealers, the percentage of pelts in prime condition was then assessed on weekly and half-monthly basis. This study indicates that starting the trapping season in the last half of the month may maximize the percentage ...


Additional County Records Of Invertebrates From Arkansas, Chris T. Mcallister, Henry W. Robison, Renn Tumlison Jan 2018

Additional County Records Of Invertebrates From Arkansas, Chris T. Mcallister, Henry W. Robison, Renn Tumlison

Journal of the Arkansas Academy of Science

No abstract provided.


Business Meeting Report (Secretary's And Treasurer's Report), Academy Editors Jan 2018

Business Meeting Report (Secretary's And Treasurer's Report), Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.


Keynote Address And Meeting Program Report, Academy Editors Jan 2018

Keynote Address And Meeting Program Report, Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.


In Memoriam: Kimberly G. Smith, 1948-2018, Ragupathy Kannan, Jeffrey Short Jan 2018

In Memoriam: Kimberly G. Smith, 1948-2018, Ragupathy Kannan, Jeffrey Short

Journal of the Arkansas Academy of Science

No abstract provided.


Journal Acknowledgments And Editorial Board, Academy Editors Jan 2018

Journal Acknowledgments And Editorial Board, Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.


Instructions To Authors For The Journal Of The Arkansas Academy Of Science, Academy Editors Jan 2018

Instructions To Authors For The Journal Of The Arkansas Academy Of Science, Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.


Journal Of The Arkansas Academy Of Science- Volume 72 2018, Academy Editors Jan 2018

Journal Of The Arkansas Academy Of Science- Volume 72 2018, Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.


Academy Presidents And Institutional Members, Academy Editors Jan 2018

Academy Presidents And Institutional Members, Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.


Table Of Contents, Academy Editors Jan 2018

Table Of Contents, Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.


Germinal Epithelium Cytology During Spermatogenesis In The Alligator Snapping Turtle, Macrochelys Temminckii (Reptilia: Chelydridae), Stanley E. Trauth, Kevin M. Gribbins Jan 2018

Germinal Epithelium Cytology During Spermatogenesis In The Alligator Snapping Turtle, Macrochelys Temminckii (Reptilia: Chelydridae), Stanley E. Trauth, Kevin M. Gribbins

Journal of the Arkansas Academy of Science

We investigated the cytology of the seminiferous epithelia of the Alligator Snapping Turtle (Macrochelys temminckii). Spermatogenic and regressed testes were assessed from 2 adult individuals collected in Arkansas in May and September of 1993. Specifically, we focused on the cellular phases of germ cell development and maturation. The germ cell morphology and developmental strategy within the germinal epithelium of M. temminckii appear similar to that of other genera of turtles previously studied. Interestingly, mitotic, meiotic, and spermiogeneic cells are nearly identical to that of other turtles studied based on light microscopy. There are also 6 recognizable steps to spermiogenesis, which ...


Distal Urogenital Anatomy Of Male Southern Coal Skinks, Plestiodon Anthracinus Pluvialis (Reptilia: Scincidae), Stanley E. Trauth Jan 2018

Distal Urogenital Anatomy Of Male Southern Coal Skinks, Plestiodon Anthracinus Pluvialis (Reptilia: Scincidae), Stanley E. Trauth

Journal of the Arkansas Academy of Science

I investigated the morphology and histology of the distal urogenital anatomy of male southern coal skinks (Plestiodon anthracinus pluvialis) from reproductively active individuals collected in Arkansas in order to provide comparative information with recent studies on squamate urogenital anatomy. Specifically, I focused on the basic anatomy and positioning of posterior ducts in this skink, which included portions of the ductus deferens, the ampulla ductus deferentis, the sexual segment of the kidney, the ureter and collecting ducts, as well as aspects of the urodaeal chamber and urogenital papillae. I found a much reduced ampulla ductus deferentis comprising only 0.7 mm ...


Vertebrate Natural History Notes From Arkansas, 2018, Renn Tumlison, D. Blake Sasse, Henry W. Robison, Matt B. Connior, Chris T. Mcallister, Kelly Jobe, Matthew Anderson Jan 2018

Vertebrate Natural History Notes From Arkansas, 2018, Renn Tumlison, D. Blake Sasse, Henry W. Robison, Matt B. Connior, Chris T. Mcallister, Kelly Jobe, Matthew Anderson

Journal of the Arkansas Academy of Science

Because meaningful observations of natural history are not always part of larger studies, important pieces of information often are unreported. Small details, however, can fill gaps in understanding and lead to interesting questions about ecological relationships or environmental change. We have compiled recent important observations of distribution, deformities, and foods of various vertebrates, observations of winter activity of a woodchuck (Marmota monax) and winter torpor of a hoary bat (Lasiurus cinereus), and also report a very unusual case of bilateral gynandromorphism in a Cardinal (Cardinalis cardinalis). These unique observations continue to add immensely to the growth of knowledge of the ...


Microbial Diversity In The Thermal Springs Within Hot Springs National Park, E. Taylor Stone, Richard Murray, Matthew D. Moran Jan 2018

Microbial Diversity In The Thermal Springs Within Hot Springs National Park, E. Taylor Stone, Richard Murray, Matthew D. Moran

Journal of the Arkansas Academy of Science

The thermal water systems of Hot Springs National Park (HSNP) in Hot Springs, Arkansas exist in relative isolation from other North American thermal systems. The HSNP waters could therefore serve as a unique center of thermophilic microbial biodiversity. However, these springs remain largely unexplored using culture-independent next generation sequencing techniques to classify species of thermophilic organisms. Additionally, HSNP has been the focus of anthropogenic development, capping and diverting the springs for use in recreational bathhouse facilities. Human modification of these springs may have impacted the structure of these bacterial communities compared to springs left in a relative natural state. The ...


Avian Frugivory In A Fruiting Mulberry Tree (Morus Rubra) In Arkansas, Ragupathy Kannan Jan 2018

Avian Frugivory In A Fruiting Mulberry Tree (Morus Rubra) In Arkansas, Ragupathy Kannan

Journal of the Arkansas Academy of Science

A fruiting Mulberry tree (Morus rubra) was observed for 67 hours in the spring of 2016 and 2017 in Fort Smith, Arkansas. A total of 172 five-minute scans were performed, during which the following parameters were recorded: species visited, number of individuals of each species, time of visitations, and foraging tier. Between each scan, the foraging rate (number of fruits consumed/min) and inter- and intra- specific aggressive interactions were recorded. A total of 3465 observations of individual birds from 32 species was recorded. Species diversity index was higher in the upper half of the tree. The mean foraging rates ...


Deep Learning-Based Framework For Autism Functional Mri Image Classification, Xin Yang, Saman Sarraf, Ning Zhang Jan 2018

Deep Learning-Based Framework For Autism Functional Mri Image Classification, Xin Yang, Saman Sarraf, Ning Zhang

Journal of the Arkansas Academy of Science

The purpose of this paper is to introduce deep learning-based framework LeNet-5 architecture and implement the experiments for functional MRI image classification of Autism spectrum disorder. We implement our experiments under the NVIDIA deep learning GPU Training Systems (DIGITS). By using the Convolutional Neural Network (CNN) LeNet-5 architecture, we successfully classified functional MRI image of Autism spectrum disorder from normal controls. The results show that we obtained satisfactory results for both sensitivity and specificity.


Small Mammal Abundances In A Grassland And Forest Area At The Lake Fayetteville Environmental Center, Arkansas, Douglas A. James, S. A. Bartholomew, A. Deshwal, P. Panwar Jan 2018

Small Mammal Abundances In A Grassland And Forest Area At The Lake Fayetteville Environmental Center, Arkansas, Douglas A. James, S. A. Bartholomew, A. Deshwal, P. Panwar

Journal of the Arkansas Academy of Science

We examined changes in abundance of small mammals in forest and prairie-grassland habitat at Lake Fayetteville, Arkansas over a period of 32 years. We estimated the population size of small mammals using a mark-recapture method by capturing small mammals employing rat-sized Sherman live traps laid out in a grid with 8 rows of traps, 15 traps per row, 9.14 m (30 feet) between traps and rows covering an area of 1.01 ha (2.5 acres) in size. Six species of mammals were trapped in the prairie-grassland and three species were captured in the forest habitat. In the forest ...


Aquatic Invertebrate Community Structure, Biological Condition, Habitat, And Water Quality At Ozark National Scenic Riverways, Missouri, 2005-2014, David E. Bowles, L. W. Morrison, J. T. Cribbs Jan 2018

Aquatic Invertebrate Community Structure, Biological Condition, Habitat, And Water Quality At Ozark National Scenic Riverways, Missouri, 2005-2014, David E. Bowles, L. W. Morrison, J. T. Cribbs

Journal of the Arkansas Academy of Science

Ozark National Scenic Riverways (OZAR) was established to protect the corridor of the Current River and its major tributary, the Jacks Fork. The Current River is one of the few remaining free-flowing rivers in the U.S., with much of its base flow coming from several large springs. To assess the biological condition of these rivers, aquatic invertebrate community structure was monitored from 2005 to 2014. Benthic invertebrate samples and associated habitat and water quality data were collected from each of nine sampling sites using a Slack-Surber sampler. The Stream Condition Index (SCI), a multimetric index that incorporates taxa richness ...


Winter Surveys Of Cotinus Obovatus (American Smoketree) In The Ozark Mountains, Gary R. Graves Jan 2018

Winter Surveys Of Cotinus Obovatus (American Smoketree) In The Ozark Mountains, Gary R. Graves

Journal of the Arkansas Academy of Science

Cotinus obovatus (American smoketree) is a rare deciduous tree with a relictual distribution in southeastern North America. Efforts to map its fine-scale geographic distribution in the Ozark Mountains have been limited to the growing season when the distinctive blooming panicles and foliage facilitate detection in hardwood-cedar woodlands. I describe the physiognomic traits of leafless C. obovatus that permit effective population mapping in winter landscapes. Clumped growth and diagonally leaning stems facilitate detection at a distance. Bark texture, twig morphology, and sap odor confirm the identity of the tree at close range.