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Articles 5251 - 5280 of 5634
Full-Text Articles in Life Sciences
Some Effects Of Methyl Green On Expression Of Damage Induced In G1 Xenopus Cells By Ultraviolet Light, Keith E. Mathias, H. Gaston Griggs
Some Effects Of Methyl Green On Expression Of Damage Induced In G1 Xenopus Cells By Ultraviolet Light, Keith E. Mathias, H. Gaston Griggs
Journal of the Arkansas Academy of Science
No abstract provided.
Use Of An Outdoor Lab In Teaching Botany, Jewel E. Moore
Use Of An Outdoor Lab In Teaching Botany, Jewel E. Moore
Journal of the Arkansas Academy of Science
No abstract provided.
Immune Responses Of Rats To Antigens Of Moloney Leukemia Virus, Frances B. Soderberg, Susan G. Tai, Joe M. Jones
Immune Responses Of Rats To Antigens Of Moloney Leukemia Virus, Frances B. Soderberg, Susan G. Tai, Joe M. Jones
Journal of the Arkansas Academy of Science
No abstract provided.
Investigation Of The Streambed Oxygen Demand Of Fourche Creek, Pulaski County, Arkansas, John D. Rickett, Patrick Edelmann
Investigation Of The Streambed Oxygen Demand Of Fourche Creek, Pulaski County, Arkansas, John D. Rickett, Patrick Edelmann
Journal of the Arkansas Academy of Science
No abstract provided.
Hemogregarines In The Red-Eared Slider, Chrysemys Scripta Elegans (Wied) From Arkansas, Chris T. Mcallister, Anthony W. King
Hemogregarines In The Red-Eared Slider, Chrysemys Scripta Elegans (Wied) From Arkansas, Chris T. Mcallister, Anthony W. King
Journal of the Arkansas Academy of Science
No abstract provided.
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.
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 …
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.
Effect Of Cold Shock On The Metabolism Of Trichomonas Gallinae, James J. Daly
Effect Of Cold Shock On The Metabolism Of Trichomonas Gallinae, James J. Daly
Journal of the Arkansas Academy of Science
The influence of cold (4°C) used to prepare cells for metabolic investigations was examined with Trichomonas gallinae in this study. Cells washed with cold diluent in a refrigerated centrifuge were found to be less stimulated in their gas production at 37°C when exposed to glucose or maltose than cells washed at room temperature conditions. Such cold-prepared cells had higher initial glycogen contents after washing, faster endogenous glycogen degradation rates when incubated at 37 °C, but lower glycogen synthesis in the presence of glucose or maltose when compared to cells not prepared in the cold. However, uptake of glucose and maltose …
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 …
Fishes Of Rock Creek, Sharp County, Arkansas, F. Allen Carter, John K. Beadles
Fishes Of Rock Creek, Sharp County, Arkansas, F. Allen Carter, John K. Beadles
Journal of the Arkansas Academy of Science
A survey of the fishes of Rock Creek in north central Arkansas was made on 9-10 November, 1978, and 15-16 March, 1979. Field collections were made using a minnow seine and backpack shocker. The creek system was inhabited by 28 species of fish representing eight families. Fish collections were typical of a small Ozark stream. The most abundant species were: Campostoma oligolepis Hubbs and Greene, largescale stoneroller; Notropis telescopus (Cope), telescope shiner; Notropis zonatus (Putnam), bleeding shiner; Moxostoma duquesnei (Lesueur), black redhorse; Etheostoma blennioides Rafinesque, greenside darter; Etheostoma caeruleum Storer, rainbow darter; Etheostoma euzonum (Hubbs and Black), Arkansas saddled darter; …
Estimated Growth And Standing Crop Of Largemouth Bass (Micropterus Salmoides) From Lake Elmdale, Alex Zdinak Jr., Raj V. Kilambi, Marvin L. Galloway, John E. Mcclanahan, Clark Duffe
Estimated Growth And Standing Crop Of Largemouth Bass (Micropterus Salmoides) From Lake Elmdale, Alex Zdinak Jr., Raj V. Kilambi, Marvin L. Galloway, John E. Mcclanahan, Clark Duffe
Journal of the Arkansas Academy of Science
Electro-fishing gear was used to make shoreline population estimates of largemouth bass (Micropterus salmoldes) in Lake Elmdale, Washington County, Arkansas, during September 1979. The population density was estimated to be 1541 bass/Km² with a standing crop of 30.4 kg/ha. The length-weight relationship was calculated as W = 0.00001 504L^2.97, and the total length-scale radius relationship as L = 41.75 + 1.23 St. The average condition coefficient(K) was 1.31. In comparison with four other Arkansas lakes the population density of largemouth bass was highest in Lake Elmdale while the growth rate was lowest.
Systematic Status Of The Fishes Of Genus Campostoma (Cyprinidae) Inhabiting The Major Drainages Of Northern Arkansas, Stephen A. Sewell, John K. Beadles, V. Rick Mcdaniel
Systematic Status Of The Fishes Of Genus Campostoma (Cyprinidae) Inhabiting The Major Drainages Of Northern Arkansas, Stephen A. Sewell, John K. Beadles, V. Rick Mcdaniel
Journal of the Arkansas Academy of Science
A total of 6980 morphometric and meristic data points were analyzed from specimens previously identified as Campostoma anomalum pullum and Compostoma oligolepis from all areas of their Ozark ranges in Arkansas. Data were analyzed using the Statistical Analysis System (SAS) and IBM 370 Computer System (HASP II). An attempt was made to establish separation points through multivariate analysis (MANOVA) by taxon and watershed. Additional analyses included factor analysis and discriminant function analysis. Scale count frequencies were analyzed using computer program MINITAB. MANOVA revealed a lack of consistent separation points, and Ozark populations were shown to be distinct and highly variable …
Aquatic Macroinvertebrates Of Wapanocca National Wildlife Refuge, George L. Harp, Phoebe A. Harp
Aquatic Macroinvertebrates Of Wapanocca National Wildlife Refuge, George L. Harp, Phoebe A. Harp
Journal of the Arkansas Academy of Science
No abstract provided.
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.
Distributional Survey Of The Fishes Of Ten Mile Creek In Southeastern Arkansas, Carl D. Jeffers, Edmond J. Bacon Jr.
Distributional Survey Of The Fishes Of Ten Mile Creek In Southeastern Arkansas, Carl D. Jeffers, Edmond J. Bacon Jr.
Journal of the Arkansas Academy of Science
A survey of the fishes of Ten Mile Creek was conducted during 1976 to 1979. The ichthyofauna of Ten Mile Creek is typical of lowland drainage systems in southeastern Arkansas. Fifty-three species representing 13 families and 23 genera were collected. Etheostoma parvipinne was locally abundant in the headwaters, and other vulnerable or rare species included Notropls maculatus, Fundulus notti, Fundulus chrysotus, Erimyzon sucetta, Moxostoma poecilurum, and Lepomis punctatus. Eight specimens of Notropis hubbsi were collected.
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.
Goldeye In The Black River, John K. Beadles
Goldeye In The Black River, John K. Beadles
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.
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 …
Effects Of Channelization On Fish Populations Of The Cache River And Bayou Deview, Morris Mauney, George L. Harp
Effects Of Channelization On Fish Populations Of The Cache River And Bayou Deview, Morris Mauney, George L. Harp
Journal of the Arkansas Academy of Science
This study was designed to better understand the possible effects of channelization by comparing natural and previously channelized sections of the Cache River and Bayou DeView. Forty-five fish species were collected in natural reaches, but only 24 species were collected in channelized reaches. Cyprinus carpio and Dorosoma cepedianum constituted 40 and 20 percent of the total fish biomass in channelized reaches, respectively, but only 22 and 2 percent of the total biomass in natural reaches. The mean weight of total fishes and game fishes only per surface ha in natural sections were 276 and 46 kg, respectively, but these values …
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.
Additions To The Strawberry River Ichthyofauna, Henry W. Robison
Additions To The Strawberry River Ichthyofauna, Henry W. Robison
Journal of the Arkansas Academy of Science
No abstract provided.
Additions, Deletions, And Corrections For The Atlas And Annotated List Of The Vascular Plants Of Arkansas, Edwin B. Smith, M. Gwen Barber
Additions, Deletions, And Corrections For The Atlas And Annotated List Of The Vascular Plants Of Arkansas, Edwin B. Smith, M. Gwen Barber
Journal of the Arkansas Academy of Science
No abstract provided.