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Articles 1 - 21 of 21
Full-Text Articles in Life Sciences
Arkansas Field Botany (Flora And Vegetation) Bibliography (1988-2000), James H. Peck, C. Theo Witsell, Thomas L. Foti
Arkansas Field Botany (Flora And Vegetation) Bibliography (1988-2000), James H. Peck, C. Theo Witsell, Thomas L. Foti
Journal of the Arkansas Academy of Science
The floristic richness and diversity of vegetation in Arkansas continues to require and stimulate a growing body of taxonomic and ecological research publications. Peck and Peck (1988) listed 766 references, including those of the two prior lists. Since then we have gathered 417 additional references. The total list now contains 1,183 references, with 70% prepared or published since 1970. This update is provided for four reasons: 1) to compile a comprehensive source to direct and facilitate future studies, 2) to provide easier access to many reports not normally located in electronic databases, 3) to improve communications with botanists outside Arkansas, …
Food Habits Of The Ouachita Dusky Salamander, Desmognathus Brimleyorum (Caudata: Plethodontidae), In Arkansas, David H. Jamieson, Peter J. Rust, Stanley E. Trauth
Food Habits Of The Ouachita Dusky Salamander, Desmognathus Brimleyorum (Caudata: Plethodontidae), In Arkansas, David H. Jamieson, Peter J. Rust, Stanley E. Trauth
Journal of the Arkansas Academy of Science
No abstract provided.
Diversity Of Lamium (Lamiceae) In Arkansas, Including Occurrences Of Lamium Hybridum And Flower Color Forms, Jason A. Haley, Daniel L. Marsh
Diversity Of Lamium (Lamiceae) In Arkansas, Including Occurrences Of Lamium Hybridum And Flower Color Forms, Jason A. Haley, Daniel L. Marsh
Journal of the Arkansas Academy of Science
No abstract provided.
Status Of Pet Mountain Lions (Puma Concolor) In Arkansas, D. Blake Sasse
Status Of Pet Mountain Lions (Puma Concolor) In Arkansas, D. Blake Sasse
Journal of the Arkansas Academy of Science
No abstract provided.
Redescription Of Eimeria Macyi (Apicomplexa: Eimeriidae) From The Eastern Pipistrelle, Pipistrellus Subflavus (Mammalia: Chiroptera), From Arkansas, Chris T. Mcallister, Steve J. Upton, Stanley E. Trauth, David W. Allard
Redescription Of Eimeria Macyi (Apicomplexa: Eimeriidae) From The Eastern Pipistrelle, Pipistrellus Subflavus (Mammalia: Chiroptera), From Arkansas, Chris T. Mcallister, Steve J. Upton, Stanley E. Trauth, David W. Allard
Journal of the Arkansas Academy of Science
No abstract provided.
Molecular Orbital Studies Of Nitrosyl Metalloporphyrin Complexes, John P. Graham, Genevive Brown
Molecular Orbital Studies Of Nitrosyl Metalloporphyrin Complexes, John P. Graham, Genevive Brown
Journal of the Arkansas Academy of Science
Molecular orbital calculations are applied to the study of the structure and bonding of nitrosyl metalloporphyrin complexes. The Fenske-Hall approximate molecular orbital method and the Amsterdam Density Functional (ADF) method are used. The calculations provide qualitative and quantitative explanations for the observed structural differences between the nitrosyl porphyrin complexes ofiron, manganese, and cobalt. It is proposed that the energy of the highest occupied molecular orbital (HOMO) of these complexes is primarily responsible for the observed structural differences. The interaction between the nitrosyl ligand and metal dz2 orbital results in an antibonding orbital that is occupied in the complexes of Fe …
Distribution And Status Of Ophiogomphus Westfalli (Ondonata: Gomphidae) In Missouri And Arkansas, George L. Harp, Linden Trial
Distribution And Status Of Ophiogomphus Westfalli (Ondonata: Gomphidae) In Missouri And Arkansas, George L. Harp, Linden Trial
Journal of the Arkansas Academy of Science
Ophiogomphus westfalli is endemic to the Interior Highlands (Ozark Plateaus and Ouachita Mountains), in Missouri, Arkansas and southeastern Kansas. First described in 1985, its life history is still little known. Prior to 1997, this species was known from only six sites in Missouri and 10 in Arkansas. From late May through late July in both 1999 and 2000 we surveyed 49 sites, three of them twice each, on Missouri Ozark streams inorder to further clarify the distribution and relative abundance of this dragonfly. Adults, nymphs and/or exuviae were found at 23 sites. Literature and museum searches bring to 72 locations …
Identification Of Florida Largemouth Bass Alleles In Arkansas Public And Private Aquaculture Ponds, Ronald L. Johnson, Randall Staley
Identification Of Florida Largemouth Bass Alleles In Arkansas Public And Private Aquaculture Ponds, Ronald L. Johnson, Randall Staley
Journal of the Arkansas Academy of Science
The Florida subspecies of the largemouth bass (LMB) has often been introduced into waters outside of its range, with escape of individuals into associated waterways common. Sustaining pure lines within controlled hatchery settings is also difficult. The present study investigated LMB populations by way of allozyme analysis of three diagnostic loci of 115 LMB in three public and seven private aquaculture ponds within Arkansas. The goal was to determine the success of hatcheries in maintaining pure subspecies. None of the pond populations studied were fixed for all alleles. Private ponds had northern LMB allele frequencies of up to 0.40 in …
Perceived Damage By Elk In The Arkansas Ozarks, Jennifer H. Herner-Thogmartin, Kimberly G. Smith, Michael E. Cartwright
Perceived Damage By Elk In The Arkansas Ozarks, Jennifer H. Herner-Thogmartin, Kimberly G. Smith, Michael E. Cartwright
Journal of the Arkansas Academy of Science
Wildlife managers in Arkansas are faced with managing a growing population of Rocky Mountain elk (Cervus elaphus neloni) that has extended its range to incorporate private lands near the Buffalo National River (BNR) in northcentral Arkansas. This range expansion has created conflicts between private landowners and wildlife management personnel. To document the extent of damage and assess attitudes of landowners with elk on their land, interviews were conducted with landowners who contacted us or the Arkansas Game and Fish Commission about problems with elk. A survey also was created and sent to landowners who live near the BNR in Boone …
Survey Of The Macrobenthic Community In Ferguson Lake, Saline County, Arkansas, John D. Rickett, E. P. (Perk) Floyd
Survey Of The Macrobenthic Community In Ferguson Lake, Saline County, Arkansas, John D. Rickett, E. P. (Perk) Floyd
Journal of the Arkansas Academy of Science
One hundred thirty benthic samples were collected on 33 visits to Ferguson Lake, Saline County, Arkansas, between May 1997 and October 2000. Sediments were visually examined and described, and some were returned to the lab for sediment oxygen demand (SOD) analysis. Fourteen taxa, representing five phyla of invertebrates, were identified. In all samples, oligochaetes, chaoborids, and chironomids comprised the majority of individuals, reaching densities up to 7449, 14,208, and 8783 per m2, respectively. When seasonally grouped, largest total abundances and greatest abundances of most taxa were collected during the winter months (December-February). A minor abundance peak occurred in July due …
Characterization Of A PorosTm-Fumonisin B1 Affinity Column For Isolating Ceramide Synthase From Rat Liver, S. Jernigan, W. B. Melchior Jr., G. R. Jenkins, K. L. Rowland, D. W. Roberts, P. C. Howard, H. Tolleson
Characterization Of A PorosTm-Fumonisin B1 Affinity Column For Isolating Ceramide Synthase From Rat Liver, S. Jernigan, W. B. Melchior Jr., G. R. Jenkins, K. L. Rowland, D. W. Roberts, P. C. Howard, H. Tolleson
Journal of the Arkansas Academy of Science
Fumonisin B1 is a mycotoxin produced by fungi of the genus Fusarium, common pathogens of corn and other grain plants. Toxic effects associated with fumonisin B1 include equine leukoencephalomacia, porcine pulmonary edema, rat renal carcinoma, and murine hepatocellular carcinoma. Increased risk for esophageal cancer in humans has been epidemiologically associated with consumption of corn contaminated with Fusarium, suggesting that fumonisin B1 may be involved. The biological effects of fumonisin B1 exposure result primarily from disruption of de novo sphingolipid biosynthesis via inhibition of ceramide synthase. Exposure of animals or cultured cells to fumonisin B1 results in the characteristic accumulation of …
New Records Of The Woodchuck (Marmota Monax) From Southern Arkansas, C. Renn Tumlison, Anna Smith, Randy Frazier
New Records Of The Woodchuck (Marmota Monax) From Southern Arkansas, C. Renn Tumlison, Anna Smith, Randy Frazier
Journal of the Arkansas Academy of Science
No abstract provided.
Distribution Of Leconte's Free-Tailed Bat (Tadarida Brasiliensis Cynocephala) In Arkansas, With Notes On Reproduction And Natural History, David A. Saugey, D. Blake Sasse, J. D. Wilhide, Drew Reed, Tammy R. Jones, Darrell R. Heath, Daniel R. England
Distribution Of Leconte's Free-Tailed Bat (Tadarida Brasiliensis Cynocephala) In Arkansas, With Notes On Reproduction And Natural History, David A. Saugey, D. Blake Sasse, J. D. Wilhide, Drew Reed, Tammy R. Jones, Darrell R. Heath, Daniel R. England
Journal of the Arkansas Academy of Science
During the past 20 years (1982-2001) we have studied the biology, occurrence and distribution of LeConte's (Brazilian) free-tailed bat, Tadarida brasiliensis cynocephala, in Arkansas. Colonies and individuals were reported from man made structures only. Four new county records have been documented since 1988, extending the range from the central part of the state to Arkansas's northern-most tier of counties. Numerous nuisance maternity colonies were investigated during exclusion activities and one, year-round colony provided the majority of reproductive data. A total of 152 free-tailed bats was submitted to the Arkansas Department of Health Rabies Laboratory (1982-2001); most during February through April, …
Life History Of The River Shiner, Notropis Blennius (Cyprinidae), In The Arkansas River Of Western Arkansas, Laura Hudson, Thomas M. Buchanan
Life History Of The River Shiner, Notropis Blennius (Cyprinidae), In The Arkansas River Of Western Arkansas, Laura Hudson, Thomas M. Buchanan
Journal of the Arkansas Academy of Science
The reproductive cycle, food habits, and age and growth of the river shiner, Notropis blennius (Girard), in the Arkansas River of western Arkansas were studied from May 1996 through October 1997. Based on gonadosomatic indices and mean ovumd iameters of females, tubercle development in males, and the first appearance of young-of-year in samples, the breeding season extended from June through August in both 1996 and 1997. The river shiner is a diurnal, generalist feeder that forages on a wide variety of food items. In all four seasons, detritus dominated the diets of adults and juveniles in terms of volume and …
Breeding Season Distribution Of Cerulean Warblers In Arkansas In The 1990s, Douglas A. James, Christopher J. Kellner, Jan Self, Jerry Davis
Breeding Season Distribution Of Cerulean Warblers In Arkansas In The 1990s, Douglas A. James, Christopher J. Kellner, Jan Self, Jerry Davis
Journal of the Arkansas Academy of Science
The Cerulean Warbler (Dendroica cerulea) has been declining in numbers in its North American nesting range, and the same is true in Arkansas. To provide specific sites that can be monitored in the future, this study describes places where the bird was documented in the state in the 1990s. The warbler was found in mature deciduous forest in both upland and bottomland situations but was most abundant in the upland Ozark forests and uncommon in other regions of the state. Most (70%) of the occupied sites were on federal and state lands. Pattern of overall distribution was essentially the same …
Survey Of Salvinia (Salviniaceae) In Eastern Arkansas, James H. Peck
Survey Of Salvinia (Salviniaceae) In Eastern Arkansas, James H. Peck
Journal of the Arkansas Academy of Science
Salvinia, water spangles, is a genus of 10 species of free-floating heterosporous aquatic ferns with two species introduced to North America. S. minima Baker was introduced into the eastern United States by at least 1814 and occurs mainly across the southeastern United States. S. molesta Mitchell was recognized as a distinct species in the 1970s, was introduced into the United States as a water-garden plant in the 1980s, and has escaped and spread across the southeastern United States in the 1990s. It is recognized by federal agency as noxious aquatic weed. S. minima Baker was discovered in Arkansas in 1998. …
Decomposition Rate Comparisons Between Frequently Burned And Unburned Areas Of Uneven-Aged Loblolly Pine Stands In Southeastern Arkansas, Michele Renschin, Hal O. Leichty, Michael G. Shelton
Decomposition Rate Comparisons Between Frequently Burned And Unburned Areas Of Uneven-Aged Loblolly Pine Stands In Southeastern Arkansas, Michele Renschin, Hal O. Leichty, Michael G. Shelton
Journal of the Arkansas Academy of Science
Although fire has been used extensively over long periods of time in loblolly pine (Pinus taeda L.) ecosystems, little is known concerning the effects of frequent fire use on nutrient cycling and decomposition. To better understand the long-term effects of fire on these processes, foliar litter decomposition rates were quantified in a study investigating prescribed fire and uneven-aged loblollypine management in the Upper Coastal Plain in Arkansas. Part of the study area had been burned on a 2- to 3-year cycle since 1981, whereas another portion had not received any prescribed fires. Decomposition rates were determined by placing foliar litter …
Results Of A Bat Survey In The Western Ozark National Forest, Michelle L. Caviness, Douglas A. James
Results Of A Bat Survey In The Western Ozark National Forest, Michelle L. Caviness, Douglas A. James
Journal of the Arkansas Academy of Science
No abstract provided.
Status Report On Harperella, Ptilimnium Nodosum (Rose) Mathias, In Arkansas, Edith L. Hardcastle, David X. Williams
Status Report On Harperella, Ptilimnium Nodosum (Rose) Mathias, In Arkansas, Edith L. Hardcastle, David X. Williams
Journal of the Arkansas Academy of Science
No abstract provided.
Early History Of The Wolf, Black Bear, And Mountain Lion In Arkansas, Annalea K. Bowers, Leah D. Lucio, David W. Clark, Susan P. Rakow, Gary A. Heidt
Early History Of The Wolf, Black Bear, And Mountain Lion In Arkansas, Annalea K. Bowers, Leah D. Lucio, David W. Clark, Susan P. Rakow, Gary A. Heidt
Journal of the Arkansas Academy of Science
During the nineteenth century settlement of Arkansas, the red wolf (Canis rufos), black bear (Ursus americanus), and mourtain lion (Puma concolor) were not only the three largest and most dangerous predators, they also stirred the imaginations of explorers and settlers. References to these species appeared prominently in the journals of early explorers such as George W. Featherstonhaugh (1844) and Frederick Gerstaecker (1854), and their presence inspired voluminous collections of stories and tall tales. Black bears were so common that a large trade developed in pelts, oil, and other body parts, and Arkansas became commonly known as "The Bear State." Wolves …
Ouachita Mountain Population Of Diphasiastrum Digitatum (Dillenius Ex. A. Braun (Holub)) Reported In Montgomery County On The Ouachita National Forest, Terry Keith Mckay, Daniel L. Marsh
Ouachita Mountain Population Of Diphasiastrum Digitatum (Dillenius Ex. A. Braun (Holub)) Reported In Montgomery County On The Ouachita National Forest, Terry Keith Mckay, Daniel L. Marsh
Journal of the Arkansas Academy of Science
No abstract provided.