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Articles 5311 - 5340 of 5607
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Glycoprotein Proteinase In Agkistrodon Bilineatus Venom, John D. Ruff, Bob D. Johnson, Dewey H. Sifford
Glycoprotein Proteinase In Agkistrodon Bilineatus Venom, John D. Ruff, Bob D. Johnson, Dewey H. Sifford
Journal of the Arkansas Academy of Science
No abstract provided.
Proceedings Of The Arkansas Academy Of Science Volume 34 1980, Academy Editors
Proceedings Of The Arkansas Academy Of Science Volume 34 1980, Academy Editors
Journal of the Arkansas Academy of Science
No abstract provided.
Study Of The Anatomy Of The Alimentary Canal Of Brochymena Quadripustulata (Hemiptera:Pentatomidae), Dan T. Barber, Lynita M. Cooksey, David W. Abell
Study Of The Anatomy Of The Alimentary Canal Of Brochymena Quadripustulata (Hemiptera:Pentatomidae), Dan T. Barber, Lynita M. Cooksey, David W. Abell
Journal of the Arkansas Academy of Science
An anatomical study of the alimentary canal and associated salivary apparatus was conducted for the pentatomid, Brochymena quadripustulata. The esophagus, ventriculus, pylorus, rectum, principal salivary glands and ducts are described and illustrated. Described structures of Brochymena quadripustulata are compared with various species of pentatomids and other hemipterans.
Food Of Bluegill And Longear Sunfish In Degray Reservoir, Arkansas, 1976, Horace E. Bryant, Thomas E. Moen
Food Of Bluegill And Longear Sunfish In Degray Reservoir, Arkansas, 1976, Horace E. Bryant, Thomas E. Moen
Journal of the Arkansas Academy of Science
Stomach contents were examined from 544 bluegill (Lepomis macrochirus) and 709 longear sunfish (L. megalotis) collected from nearshore areas of DeGray Reservoir April-November 1976. Major foods of bluegill (percentage of total weight of food in parentheses) were insects (33), bryozoa (7.3), planktonic crustaceans (6.5), and plant materials (15.4). The major food items contributing to the diet of longear sunfish were insects (52.6%), crayfish (12.5%), fish (7.4%), and plant material (6.7%). Although bluegill and longear sunfish are closely related species, their diets were not as similar as expected: bluegill consumed zooplankton, adult dipterans, and adult ephemeropterans associated with limnetic areas; while …
64th Annual Meeting, 1980. Program, Academy Editors
64th Annual Meeting, 1980. Program, Academy Editors
Journal of the Arkansas Academy of Science
No abstract provided.
Food Of Largemouth Bass (Micropterus Salmoides) In Degray Reservoir, Arkansas, 1976, Horace E. Bryant, Thomas E. Moen
Food Of Largemouth Bass (Micropterus Salmoides) In Degray Reservoir, Arkansas, 1976, Horace E. Bryant, Thomas E. Moen
Journal of the Arkansas Academy of Science
Stomach contents were examined from 748 largemouth bass, Micropterus salmoides (<125 mm total length), collected from DeGray Reservoir during April-November 1976. Fish constituted 59% by weight of the total diet and occurred in 81% of the stomachs; crayfish made up nearly 38% of the weight and occurred in 24% of the stomachs. Sunfish, the principal fish food (about 28% by weight), were observed in 36% of the stomachs. Shad were the second most important prey (23% by weight and 29% frequency in occurrence). Crayfish constituted about 42% of the total weight of the food of bass 200 mm long or longer, but only 12% in bass less than 200 mm. Crayfish consumption was greatest during the fall.
Inventory Of The Decapod Crustaceans (Crayfishes And Shrimps) Of Arkansas With A Discussion Of Their Habitats, Raymond W. Bouchard, Henry W. Robison
Inventory Of The Decapod Crustaceans (Crayfishes And Shrimps) Of Arkansas With A Discussion Of Their Habitats, Raymond W. Bouchard, Henry W. Robison
Journal of the Arkansas Academy of Science
The freshwater decapod crustaceans of Arkansas presently consist of two species of shrimps and 51 taxa of crayfishes divided into 47 species and four subspecies. The shrimps are represented by Macrobranchium ohione and Palaemonetes kadiakensis. The crayfish fauna is the largest of any state west of the Mississippi River reflecting the variety of habitats within Arkansas as a result of the geologic diversity in the state. The Ozark Plateaus and Ouachita provinces are dominated by the genus Orconectes, while in the Gulf Coastal Plain Procambarus is the most conspicuous group. Other crayfish stocks present include Cambarus, found predominantly in the …
Connections Of The Mesencephalic Locomotor Region (Mlr) In The Cat, E. Garcia-Rill, Robert D. Skinner, S. A. Gilmore
Connections Of The Mesencephalic Locomotor Region (Mlr) In The Cat, E. Garcia-Rill, Robert D. Skinner, S. A. Gilmore
Journal of the Arkansas Academy of Science
The cat entopeduncular nucleus (EN), which is the main output of the basal ganglia, is known to project to the mesencephalic tegmentum. We have been able to elicit antidromic responses in single EN neurons from the region of the mesencephalic locomotor region (MLR), then transect (precollicular-postmamillary) the brainstem and elicit rhythmic movements of the limbs by stimulation of the same site in the same animal. Injections of the fluorescent dye 2,4 diamidino phenylindole 2 HCL (DAPI) into this area induces retrograde labeling of cell bodies in EN and motor cortex. Injections of a tritiated amino acid (leucine) into the motor …
Significant Additions To The Molluscan Fauna Of The Illinois River, Arkansas, Mark E. Gordon, Arthur V. Brown
Significant Additions To The Molluscan Fauna Of The Illinois River, Arkansas, Mark E. Gordon, Arthur V. Brown
Journal of the Arkansas Academy of Science
No abstract provided.
Isolation Of Phospholipase A2 From Agkistrodon Bilineatus Venom, Karl H. Landberg, Bob D. Johnson, Dewey H. Sifford
Isolation Of Phospholipase A2 From Agkistrodon Bilineatus Venom, Karl H. Landberg, Bob D. Johnson, Dewey H. Sifford
Journal of the Arkansas Academy of Science
No abstract provided.
Sage Thrasher (Oreoscoptes Montanus), A New State Record, Norman Lavers
Sage Thrasher (Oreoscoptes Montanus), A New State Record, Norman Lavers
Journal of the Arkansas Academy of Science
No abstract provided.
Growth And Year Class Composition Of The White Bass (Morone Chrysops) In Degray Lake, Arkansas, Thomas E. Moen, Michael R. Dewey
Growth And Year Class Composition Of The White Bass (Morone Chrysops) In Degray Lake, Arkansas, Thomas E. Moen, Michael R. Dewey
Journal of the Arkansas Academy of Science
No abstract provided.
Water, Waste And Quality Management During Preparation And Processing Of Vegetables, W. A. Sistrunk
Water, Waste And Quality Management During Preparation And Processing Of Vegetables, W. A. Sistrunk
Arkansas Water Resources Center Technical Reports
The research was designed to test and/or develop new systems of washing, peeling and blanching, develop methods of utilization of solid wastes, and find ways to reduce wastestrength of effluent without affecting quality of vegetables for processing. The highest wastestrength of effluent from vegetable processing in the region was found in plants that were canning Irish potatoes, dry beans and hominy. The high volumes of water used for washing spinach and leafy greens and the physical damage to the washed product is one of the major problems. Repetitive washing of spinach in the same water did not affect quality as …
Hovering Flight In Red-Tailed Hawks, Norman La Vers
Hovering Flight In Red-Tailed Hawks, Norman La Vers
Journal of the Arkansas Academy of Science
No abstract provided.
Occurrence Of The Plains Harvest Mouse, Reithrondontomys Montanus (Baird) In Arkansas, Douglas A. James, John A. Sealander, Jeffrey R. Short
Occurrence Of The Plains Harvest Mouse, Reithrondontomys Montanus (Baird) In Arkansas, Douglas A. James, John A. Sealander, Jeffrey R. Short
Journal of the Arkansas Academy of Science
No abstract provided.
Proceedings Of The Arkansas Academy Of Science - Volume 33 1979, Academy Editors
Proceedings Of The Arkansas Academy Of Science - Volume 33 1979, Academy Editors
Journal of the Arkansas Academy of Science
No abstract provided.
Comparison Of The Lens Protein Profiles Of Three Species Of Ozark Salamanders, James M. Britton
Comparison Of The Lens Protein Profiles Of Three Species Of Ozark Salamanders, James M. Britton
Journal of the Arkansas Academy of Science
The vertebrate lens has a high protein content (35%), 80-90% of which is composed of the soluble, lens-specific structural proteins, the crystallins. The lens protein profiles of urodelan species have been found to be qualitatively distinct. On this basis the lens proteins have been proposed as a measure of true speciation in urodelans. This paper is the result of our effort to derive a technique for comparison of lens protein profiles on a purely qualitative basis without utilizing the complex methodology employed by previous workers. With this object in mind, the lens protein profiles of Plethodon glutinosus, Ambystoma annulatum, and …
Status Of The Red-Cockaded Woodpecker At The Felsenthal National Wildlife Refuge In Arkansas, Douglas A. James, Fred L. Burnside Jr.
Status Of The Red-Cockaded Woodpecker At The Felsenthal National Wildlife Refuge In Arkansas, Douglas A. James, Fred L. Burnside Jr.
Journal of the Arkansas Academy of Science
The Red-cockaded Woodpecker is an endangered species that is endemic to mature pine forests of the southeastern United States. In Arkansas it presently occurs only in pinelands of the Ouachita Province and Gulf Coastal Plain. Cavity trees for nesting and roosting must be mature pines diseased with red-heart fungus. Due to recent forestry practices mature pine stands are disappearing thus reducing numbers of needed cavity trees. The Felsenthal National Wildlife Refuge in southeastern Arkansas contains high densities of Red-cockaded Woodpeckers and because of favorable management priorities there the survival of the woodpecker seems assured. Populations of the species in other …
Modifications And Improvements In The Formax Method Of Preparing Small Avian Study Specimens, Martin A. Floyd, Gary A. Heidt
Modifications And Improvements In The Formax Method Of Preparing Small Avian Study Specimens, Martin A. Floyd, Gary A. Heidt
Journal of the Arkansas Academy of Science
No abstract provided.
Three Species Of Trypethelium New To Arkansas, George T. Johnson
Three Species Of Trypethelium New To Arkansas, George T. Johnson
Journal of the Arkansas Academy of Science
No abstract provided.
Evaluation Of Undergraduate Courses Taught By Biology Teachers, Jewel E. Moore, Robert T. Kirkwood
Evaluation Of Undergraduate Courses Taught By Biology Teachers, Jewel E. Moore, Robert T. Kirkwood
Journal of the Arkansas Academy of Science
No abstract provided.
Electrophoretic Analysis Of Blood Serum Proteins In Three Species Of Water Snakes (Genus Nerodia), Phyllis J. Garnett
Electrophoretic Analysis Of Blood Serum Proteins In Three Species Of Water Snakes (Genus Nerodia), Phyllis J. Garnett
Journal of the Arkansas Academy of Science
Serum from three species of water snakes (Nerodia rhombifera, N. erythrogaster and N. fasciata) from one geographic region was analyzed electrophoretically on cellulose acetate, and anodic mobility and relative concentration of the fractions were determined by a recording densitometer with an automatic integrator. Classification of fractions was based on mobility (Rf, values), and for identification purposes, bands were labeled in order of decreasing mobility (albumin and alpha₁, alpha₂, alpha₃, beta₁, beta₂, gamma₁, and gamma₂ globulins). Seven fractions were identified in each species with alpha₃ being absent from N. rhombifera and N. erythrogaster, and only one gamma fraction was observed in …
Genic Variation In White-Tailed Deer From Arkansas, Phyllis K. Price, Michael E. Cartwright, Mitchell J. Rogers
Genic Variation In White-Tailed Deer From Arkansas, Phyllis K. Price, Michael E. Cartwright, Mitchell J. Rogers
Journal of the Arkansas Academy of Science
Liver and kidney samples of 33 white-tailed deer (Odocoileus virginianus) representing three populations in Arkansas were examined with horizontal starch gel electrophoresis. Of 17 loci examined, only PGM-1 and ES-2 exhibited polymorphism. Average individual heterozygosity, ranging from 2.3% to 4.7% with a mean of 3.1 %, was much lower than that reported for white-tailed deer in other parts of its range. The three populations examined in this study were highly similar based on Rogers' genetic similarity coefficient.
63rd Annual Meeting, 1979. Program, Academy Editors
63rd Annual Meeting, 1979. Program, Academy Editors
Journal of the Arkansas Academy of Science
No abstract provided.
Age And Huddling As Determinants Of Metabolic Rate In Grasshopper Mice (Onychomys Leucogaster), Meredith Bailey, Dennis A. Baeyens, Lana Mann
Age And Huddling As Determinants Of Metabolic Rate In Grasshopper Mice (Onychomys Leucogaster), Meredith Bailey, Dennis A. Baeyens, Lana Mann
Journal of the Arkansas Academy of Science
The metabolic rates of grasshopper mice (Onychomys leucogaster) were determined every third day from birth to adulthood. Metabolic rates were quantitated by measuring oxygen consumption in an open circuit system. There was a rapid fall in oxygen consumption from the third day after birth until the ninth day. Mice which were housed separately assumed a constant metabolic rate at an earlier age than mice which were kept with litter-mates. The greatest increases in metabolism occurred when immature mice were separated from litter-mates for oxygen consumption determinations. It is concluded that huddling plays an important role in reducing the metabolic rate …
Hematology As Related To Diving Characteristics Of Elaphe Obsoleta, Nerodia Erythrogaster, Nerodia Fasciata And Nerodia Rhombifera, Dennis A. Baeyens, M. W. Patterson, Chris T. Mcallister
Hematology As Related To Diving Characteristics Of Elaphe Obsoleta, Nerodia Erythrogaster, Nerodia Fasciata And Nerodia Rhombifera, Dennis A. Baeyens, M. W. Patterson, Chris T. Mcallister
Journal of the Arkansas Academy of Science
The diving capabilities of Nerodia erythrogaster flavigaster and Nerodia fasciata confluens were investigated and the results were compared with similar studies on Nerodia rhombifera rhombifera and Elaphe obsoleta obsoleta (Baeyens et al., 1978). In addition, morphological and hematological parameters contributing to underwater survival were examined. The duration of underwater survival for N. erythrogaster and N. fasciata was approximately one hour with no difference between the species. The lung volumes of the two species were also similar but were significantly less than lung volumes reported for E. obsoleta. There were no significant differences in hemoglobin concentration, red blood cell count or …
Maturation And Fecundity Of Redear Sunfish, James C. Adams, Raj V. Kilambi
Maturation And Fecundity Of Redear Sunfish, James C. Adams, Raj V. Kilambi
Journal of the Arkansas Academy of Science
Based on gonosomatic indices and ovum diameter frequency distributions, the redear sunfish spawns from May through July. Fast growing 2-year-old (above 150 mm) and older fish attain sexual maturity. Mature ovum diameter ranged from 0.60 to 1.30 mm. Fecundity • total length, • total weight, and • age relationships were: 1nF = 5.95242 + 0.01967L (r²= 0.90), LnF = 8.80328 + 0.00594W (r²= 0.92), and 1nF = 8.19332 + 0.50231 A (r² =0.83), respectively.
Seasonal Abundance And Habitat Distribution Of Birds In Northeastern Arkansas, Earl L. Hanebrink, Alan F. Posey
Seasonal Abundance And Habitat Distribution Of Birds In Northeastern Arkansas, Earl L. Hanebrink, Alan F. Posey
Journal of the Arkansas Academy of Science
Bird sighting records from 1964 through 1978 for 17 northeastern Arkansas counties were compiled according to the seasonal status, relative abundance and habitat distribution of each species. The five seasonal occurrence categories and their relative species composition were: transient visitant (46.6%), summer resident (20.3%), winter resident (14.8%), permanent resident (17.2%) and winter visitant (1.0%). The seven seasonal abundance categories and their relative species composition were: very rare (13.9%), rare 15.9%), uncommon (30.7%), fairly common (10.5%), common (25.6%), very common (1.7%) and abundant (1.7%). Eleven habitat categories were included: campestrian, abandoned fields, forest edge, lowland woods, upland woods, riparian woods, marshes, …
Effect Of Turf Fungicides On Earthworms, J. H. Roark, J. L. Dale
Effect Of Turf Fungicides On Earthworms, J. H. Roark, J. L. Dale
Journal of the Arkansas Academy of Science
Numerous turf fungicides were tested under various conditions for possible deleterious effects upon the earthworm Eisenla foetida. Earthworms treated by immersion for one minute in 0.1% solutions of 10 different fungicides died insignificant numbers after benomyl and thiophanate methyl treatments. After 1% fungicide treatments, there was significant mortality from benomyl, ethazole, Kromad, and thiophanate methyl fungicides. With 2% fungicide solutions, significant numbers died after benomyl, cadmium succinate, ethazole, thiophanate methyl, and thiram treatments. Earthworms fed bermudagrass clippings treated with 10 different fungicides showed a significant decrease in longevity from clippings treated with benomyl, dinocap, ethazole, and thiophanate methyl. Earthworms reared …
Status Of The Endangered Bats, Myotis Sodalis, M. Grisescens, And Plecotus Townsendii Ingens, In Arkansas, Michael J. Harvey, John J. Cassidy, Gary G. O'Hagan
Status Of The Endangered Bats, Myotis Sodalis, M. Grisescens, And Plecotus Townsendii Ingens, In Arkansas, Michael J. Harvey, John J. Cassidy, Gary G. O'Hagan
Journal of the Arkansas Academy of Science
No abstract provided.