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Articles 6691 - 6720 of 7180
Full-Text Articles in Entire DC Network
Effects Of Water Released From Stratified And Unstratified Reservoirs On The Downstream Water Quality, Stephen B. Smith
Effects Of Water Released From Stratified And Unstratified Reservoirs On The Downstream Water Quality, Stephen B. Smith
Journal of the Arkansas Academy of Science
Water quality samples were collected from the Little River system in Pine Creek Lake, Oklahoma, and Gillham Lake, Arkansas, and their associated tailwaters during the winter (reservoirs unstratified) and summer (reservoirs stratified) of 1980. Downstream water quality was not affected by reservoir water releases while the reservoirs were unstratified. When the reservoirs were stratified water quality in the tailwaters was dependent on the release depth of the water. The practice of flushing out a tailwater following an extended low flow period should be examined on a site by site basis. Anoxic water released from a reservoir may contain high amounts …
Selection Of Breeding Ponds By The Ringed Salamander, Ambystoma Annulatum, Peter P. Brussock, Arthur V. Brown
Selection Of Breeding Ponds By The Ringed Salamander, Ambystoma Annulatum, Peter P. Brussock, Arthur V. Brown
Journal of the Arkansas Academy of Science
No abstract provided.
Polyculture Of Giant Malaysian Prawns (Macrobrachium Rosenbergii) And Fathead Minnows (Pimephales Promelas), Tommie Crawford, Mike Freeze
Polyculture Of Giant Malaysian Prawns (Macrobrachium Rosenbergii) And Fathead Minnows (Pimephales Promelas), Tommie Crawford, Mike Freeze
Journal of the Arkansas Academy of Science
No abstract provided.
Cave Fauna Of Arkansas: Further Records, James D. Dunivan, C. Renn Tumlison, V. Rick Mcdaniel
Cave Fauna Of Arkansas: Further Records, James D. Dunivan, C. Renn Tumlison, V. Rick Mcdaniel
Journal of the Arkansas Academy of Science
No abstract provided.
Aquatic Macroinvertebrate Taxa Present In Two Ozark Springs In Randolph County, Arkansas, G. Randall Guntharp, George L. Harp
Aquatic Macroinvertebrate Taxa Present In Two Ozark Springs In Randolph County, Arkansas, G. Randall Guntharp, George L. Harp
Journal of the Arkansas Academy of Science
No abstract provided.
Dark Repair Of Lethal Damage Induced In A Hybrid Mammalian Tissue Culture Cell Line By Ultraviolet Light, Robin Haetten, Margaret Mcguinness, H. Gaston Griggs
Dark Repair Of Lethal Damage Induced In A Hybrid Mammalian Tissue Culture Cell Line By Ultraviolet Light, Robin Haetten, Margaret Mcguinness, H. Gaston Griggs
Journal of the Arkansas Academy of Science
No abstract provided.
An Infestation Of The Bat Bug Cimex Pilosellus On An Arkansas Population Of Big Brown Bats (Eptesicus Fuscus), Alan D. Price, V. Rick Mcdaniel, C. Renn Tumlison
An Infestation Of The Bat Bug Cimex Pilosellus On An Arkansas Population Of Big Brown Bats (Eptesicus Fuscus), Alan D. Price, V. Rick Mcdaniel, C. Renn Tumlison
Journal of the Arkansas Academy of Science
No abstract provided.
Invertebrate Fauna Of Devils Den, A Sandstone Cave In Northwestern Arkansas, Stewart B. Peck, James H. Peck
Invertebrate Fauna Of Devils Den, A Sandstone Cave In Northwestern Arkansas, Stewart B. Peck, James H. Peck
Journal of the Arkansas Academy of Science
The same invertebrate fauna of 17 species was found in Devils Den Cave, Washington County, Arkansas, in 1969 and 1979. The fauna consists of 1 trogloxene, 14 troglophiles, and 2 troglobites, a spider, Porrhomma cavernicolum, and a collembolan, Pseudosinella dubia. Devils Den Cave has a well developed cavernicolous fauna, although it is in sandstone which generally supports a poor cave adapted fauna. The troglobites probably evolved in the vicinity of northwestern Arkansas in limestone caves or in deep forest soils of the Ozark region. They then dispersed overland, perhaps as recently as the late Wisconsinan, to occupy this sandstone cave.
New Records For Troglobitic Asellids From Northwest Arkansas, Mark D. Schram
New Records For Troglobitic Asellids From Northwest Arkansas, Mark D. Schram
Journal of the Arkansas Academy of Science
No abstract provided.
Warmwater Fish Community Of A Cool Tailwater In Arkansas, Richard A. Frietsche
Warmwater Fish Community Of A Cool Tailwater In Arkansas, Richard A. Frietsche
Journal of the Arkansas Academy of Science
A diverse warmwater fish community has persisted in the Lake Greeson tailwater, despite hydropower releases of cold hypolimnetic water. Forty-eight species of fish were collected by electrofishing in the upper 16.1 km of the tailwater. Hydropower releases have reduced the abundance of some of the warmwater sport fish in the upper tailwater, and their populations are probably maintained in part by recruitment from downstream. Angling effort has been diverted from the warmwater sport fish populations to a put-and-take trout fishery.
Physiological Studies Of Heat Stress Acclimation During A Specific Exercise Regimen, Leland F. Morgans, Alan M. Johnson
Physiological Studies Of Heat Stress Acclimation During A Specific Exercise Regimen, Leland F. Morgans, Alan M. Johnson
Journal of the Arkansas Academy of Science
Eleven subjects were used to determine if the exercise regimen of racquetball could be used as a heat stress acclimator. Core temperature, skin temperature, sweat production, and weight loss were recorded during a racquetball match. Skin and core temperatures were determined by using thermistors. Sweat was collected with modified stress electrodes. Weight loss was recorded by comparing nude weights at the beginning and end of a match. The results indicated that an hour of strenuous racquetball play caused a significant increase in core temperature with subsequent sweating which resulted in a significant decrease in skin temperature and weight loss. The …
Reported Animal Rabies In Arkansas: 1950-1981, Gary A. Heidt
Reported Animal Rabies In Arkansas: 1950-1981, Gary A. Heidt
Journal of the Arkansas Academy of Science
Reported animal rabies in Arkansas is reviewed for the years 1950-81 . Total cases ranged from 44 in 1969 to 332 in 1979, with a mean of 154. Domestic animals accounted for 72.5% of the total cases until 1961-63 and then declined to 15.8% from 1964-81. This switch from domestic to wildlife rabies corresponded to a similar trend in nationally reported rabies and was probably due to increased public awareness and the vaccination of domestic dogs and cats. Over the 31 year period a total of 18 species of mammals has been implicated in reported rabies (individual species of foxes, …
Endemic Flora And Fauna Of Arkansas, Henry W. Robison, Kenneth L. Smith
Endemic Flora And Fauna Of Arkansas, Henry W. Robison, Kenneth L. Smith
Journal of the Arkansas Academy of Science
Arkansas has an amazing diversity of plants and animals contained within its political boundaries. Forty-seven taxa are reported as Arkansas endemics, including seven plants, thirteen crustaceans (two amphipods, three isopods, eight crayfishes), nine insects (one mayfly, one caddisfly, three stoneflies, four beetles), ten snails, six fishes, and two salamanders.
Water Quality And Benthic Invertebrate Communities In Lake Greeson Tailwater, Stephen B. Smith
Water Quality And Benthic Invertebrate Communities In Lake Greeson Tailwater, Stephen B. Smith
Journal of the Arkansas Academy of Science
The Little Missouri River below Lake Greeson, Arkansas, was sampled for water quality and benthos during summer 1979. The hydropower turbine water intakes, 20 m below the lake surface, released hypolimnetic water into the tailwater. Downstream water temperatures, total organic matter, and total inorganic matter varied considerably and benthic invertebrate communities immediately below the dam were stressed by waters released for power generation. Detrimental effects from altered temperature and flow regimes had decreased by 16.1 km downstream, where invertebrate communities were typical of less stressed environments.
River Otter In Arkansas: Ii. Indications Of A Beaver-Facilitated Commensal Relationship, C. Renn Tumlison, Mark R. Karnes, Anthony W. King
River Otter In Arkansas: Ii. Indications Of A Beaver-Facilitated Commensal Relationship, C. Renn Tumlison, Mark R. Karnes, Anthony W. King
Journal of the Arkansas Academy of Science
Dam building activities of beaver (Castor canadensis) create ponds that apparently augment habitat available to otter (Lutra canadensis). This paper considers possible effects of beaver activity and pond formation on distribution and populations of otter in Arkansas. Literature synthesis and analysis of harvest records were used to investigate the suspected relationship.
Early Stages Of Prairie Restoration On A 1.5 Hectare Field In Faulkner County, Arkansas, Robert D. Wright, Donald E. Culwell
Early Stages Of Prairie Restoration On A 1.5 Hectare Field In Faulkner County, Arkansas, Robert D. Wright, Donald E. Culwell
Journal of the Arkansas Academy of Science
A plot of land on the University of Central Arkansas campus has been permanently designated as a Nature Reserve which is to remain much as it is with woods and open, grassy fields for class use and other educational purposes. The 1.5 hectare open field is a particularly good site for prairie restoration, since the area has not been under cultivation in recent time. Andropogon gerardi, A. scoparius, Sorghastrum avenaceum, Panicum virgatum, Liatris pycnostachya, Eryngium yuccifolium, Rudbeckia hirta, and Helianthus sp. are examples of plants naturally occurring here with some frequency. A number of other plants typical of prairie remnants …
Protective Immune Responses Of Rabbits To Ascaris Suum Larval Antigens, Lawrence W. Hinck, Myra B. Finch
Protective Immune Responses Of Rabbits To Ascaris Suum Larval Antigens, Lawrence W. Hinck, Myra B. Finch
Journal of the Arkansas Academy of Science
No abstract provided.
Status Of The Small-Footed Bat, Myotis Leibii Leibii, In The Southern Ozarks, V. Rick Mcdaniel, Michael J. Harvey, Renn Tumlison, Ken N. Paige
Status Of The Small-Footed Bat, Myotis Leibii Leibii, In The Southern Ozarks, V. Rick Mcdaniel, Michael J. Harvey, Renn Tumlison, Ken N. Paige
Journal of the Arkansas Academy of Science
No abstract provided.
Stratigraphy Of A Pennsylvanian Deltaic Sequence In Russellville, Arkansas, Christopher F. Moyer, Ken Fritsche
Stratigraphy Of A Pennsylvanian Deltaic Sequence In Russellville, Arkansas, Christopher F. Moyer, Ken Fritsche
Journal of the Arkansas Academy of Science
No abstract provided.
Seven Significant Vascular Plant Records For Arkansas, J. H. Rettig
Seven Significant Vascular Plant Records For Arkansas, J. H. Rettig
Journal of the Arkansas Academy of Science
No abstract provided.
Host Reactions And Physical Properties Of Four Isolates Of Tobacco Ringspot Virus, Lisa Smith, James M. Mcguire
Host Reactions And Physical Properties Of Four Isolates Of Tobacco Ringspot Virus, Lisa Smith, James M. Mcguire
Journal of the Arkansas Academy of Science
No abstract provided.
Two Year Comparison Of The Winter Food Habits Of Mink (Mustela Vison) From Deltaic Northeast Arkansas, Ronald A. Smith, V. Rick Mcdaniel
Two Year Comparison Of The Winter Food Habits Of Mink (Mustela Vison) From Deltaic Northeast Arkansas, Ronald A. Smith, V. Rick Mcdaniel
Journal of the Arkansas Academy of Science
No abstract provided.
Analysis Of Regurgutated Short-Eared Owl (Asio Flammeus) Pellets From The Roth Prairie, Arkansas County Arkansas, Ronald A. Smith, Earl L. Hanebrink
Analysis Of Regurgutated Short-Eared Owl (Asio Flammeus) Pellets From The Roth Prairie, Arkansas County Arkansas, Ronald A. Smith, Earl L. Hanebrink
Journal of the Arkansas Academy of Science
No abstract provided.
Publication Policies And Suggestions For Authors, Academy Editors
Publication Policies And Suggestions For Authors, Academy Editors
Journal of the Arkansas Academy of Science
No abstract provided.
Application Of A New Method For Quantitative Evaluation Of Stream Benthic Algal Populations, Richard L. Meyer, Neil Woomer
Application Of A New Method For Quantitative Evaluation Of Stream Benthic Algal Populations, Richard L. Meyer, Neil Woomer
Arkansas Water Resources Center Technical Reports
The response of stream biota to changing water quality or other ecosystem perturbations is an important means of assessing water quality. The dynamic nature of streams induces significant sampling and measurement problems. In smaller streams a true algal plankton subcommunity is lacking and the major location for the production of algae is attachment onto stones and other stable surfaces at the substrate-water interface. Several artificial techniques have been developed to analyze the composition of a portion of the epiphytic periphyton (algae attached to stones) but not populations which are qualitatively and quantitatively similar to natural substrates. A newly developed substrate …
Classification And Ranking Of Selectd Arkansas Lakes, Robert E. Babcock, Eugene H. Schmitz, Thomas Buchanan, Richard L. Meyer, James I. Meinecke, David B. Czarnecki
Classification And Ranking Of Selectd Arkansas Lakes, Robert E. Babcock, Eugene H. Schmitz, Thomas Buchanan, Richard L. Meyer, James I. Meinecke, David B. Czarnecki
Arkansas Water Resources Center Technical Reports
Trophic-state related problems associated with waters in the United States have generated tremendous public interest and concern, particularly during the past decade. These interests and concerns led to Public Law 92-500, the mandate by Congress known as the Federal Water Pollution Control Act. Various sections of PL 92-500 directly address the need for trophic-state analyses, particularly Section 314 referred to as the Clean Lakes Program which assigns states the responsibility for classifying their lakes according to water quality, identifying methods of pollution control and restoring those lakes which have become degraded.
An Investigation Of Social Class As A Criterion For Deriving Market Segments Among An Elderly Population, George Bernard Glisan
An Investigation Of Social Class As A Criterion For Deriving Market Segments Among An Elderly Population, George Bernard Glisan
Graduate Theses and Dissertations
The purpose of this study was to examine the usefulness of social class as a basis for deriving target markets among elderly consumers. Using the retirement communities of Bella Vista and Hillcrest in Bentonville and Fayetteville, Arkansas, respectively, four social class groupings were derived. The social class groupings were obtained via the Hollingshead Three-Item Index of Social Position. Three of the hypotheses were developed in a manner to assess buyer behavior for prepurchase information acquisition, purchase decision choice criteria, and post-purchase degree of satisfaction for limited problem-solving types of purchases. In all instances the null hypotheses could not be rejected. …
Publication Policies And Suggestions For Authors, Academy Editors
Publication Policies And Suggestions For Authors, Academy Editors
Journal of the Arkansas Academy of Science
No abstract provided.
Economics Of Rainbow Trout Production In Arkansas, Walter R. Robison, Scott H. Newton
Economics Of Rainbow Trout Production In Arkansas, Walter R. Robison, Scott H. Newton
Journal of the Arkansas Academy of Science
No abstract provided.
Pentatomidae Of Arkansas, Harvey E. Barton, Linda A. Lee
Pentatomidae Of Arkansas, Harvey E. Barton, Linda A. Lee
Journal of the Arkansas Academy of Science
A total of 30 genera and 53 species and subspecies of Pentatomidae are reported as occurring or possibly occurring in Arkansas. Fifty species and subspecies contained in 29 genera were collected or recorded from previously collected material. Based on distributional records in the literature, three additional species and one genus are listed as probably occurring in Arkansas. County and seasonal records are reported for each taxon.