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Articles 5191 - 5220 of 5635
Full-Text Articles in Life Sciences
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.
Overwintering, Feeding Study Of Channel Catfish In Cages, Walter R. Robison
Overwintering, Feeding Study Of Channel Catfish In Cages, Walter R. Robison
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, …
Leaf Processing In A Slough Of An Ozark Stream, Don F. Petty, Arthur V. Brown
Leaf Processing In A Slough Of An Ozark Stream, Don F. Petty, Arthur V. Brown
Journal of the Arkansas Academy of Science
Processing of sugar maple (Acer saccharum), black oak (Quercus velutina), and American sycamore (Platanus occidentalis) was investigated in a slough of the Illinois River, Benton County, Arkansas, using 5-gram packs in wire baskets. Oak and sycamore showed similar degradation rates, while maple was processed much faster. All processing rates were strongly retarded during a period of siltation. Chironomid larvae were the dominant organisms associated with the packs and their numbers were depressed by the silt influx. Shredders were notably few in number as compared with studies from the northwestern United States.
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.
Effects Of Various Treatments On The Distribution In Rats Of Immune Complexes Containing Antigens Of Mulv Leukemia Virus, Wail M. Siag, Jean Matchett, Joe M. Jones
Effects Of Various Treatments On The Distribution In Rats Of Immune Complexes Containing Antigens Of Mulv Leukemia Virus, Wail M. Siag, Jean Matchett, Joe M. Jones
Journal of the Arkansas Academy of Science
Immune complexes (IC) containing antigens of MuLV (¹²⁵lp30-anti-p30 or ¹²⁵lp70-anti-gp70) and formed in vitro or in vivo were sequestered primarily in the spleen. Treatments of rats with trypan blue, known to inhibit the reticuloendothelial system (RES) and diethylstilbestrol (DES), known to stimulate the RES, resulted in slight but not significant reduction of uptake of IC by the spleen. Splenectomy did not increase sequestration of IC by the liver nor did it change the distribution of IC in other tissues. Protein A, a cell wall protein of Staphylococcus aureus, when injected with IC resulted in a 10-fold reduction of uptake of …
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 …
Water Chemistry Of Farm Ponds In Arkansas, Stanley L. Chapman, D. Leroy Gray, Dennis W. King
Water Chemistry Of Farm Ponds In Arkansas, Stanley L. Chapman, D. Leroy Gray, Dennis W. King
Journal of the Arkansas Academy of Science
No abstract provided.
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.
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.
Feasibility Study For A Beaver Reservoir Agricultural Water Supply Volume I, James Ferguson, Robert Shulstad, William Bateman
Feasibility Study For A Beaver Reservoir Agricultural Water Supply Volume I, James Ferguson, Robert Shulstad, William Bateman
Arkansas Water Resources Center Technical Reports
An irrigation district of approximately 30,000 acres has been proposed to be located in Washington and Benton Counties in Northwest Arkansas utilizing water from Beaver Reservior. This report on the economic benefits of such a district is done under contract No. DACW03-81-C for the U.S. Army Corps of Engineers by the Water Resources Research Center at the University of Arkansas.
Feasibility Study For A Beaver Reservoir Agricultural Water Supply Volume Ii, James Ferguson, Robert Shulstad, William Bateman
Feasibility Study For A Beaver Reservoir Agricultural Water Supply Volume Ii, James Ferguson, Robert Shulstad, William Bateman
Arkansas Water Resources Center Technical Reports
An irrigation district of approximately 30,000 acres has been proposed to be located in Washington and Benton Counties in Northwest Arkansas utilizing water from Beaver Reservior. This report on the economic benefits of such a district is done under contr
Aquaculture Industry Of Arkansas In 1979-1980, Donald H. Fiegel, Mike Freeze
Aquaculture Industry Of Arkansas In 1979-1980, Donald H. Fiegel, Mike Freeze
Journal of the Arkansas Academy of Science
A survey of previous fish farmer certificate holders in Arkansas was conducted during 1979-1980 using renewal questionnaires, telephone conversations, and personal contacts. This survey was compared with similar surveys from preceding years. Approximately 51.0% of 12,372 intensively farmed hectares in 1979-80 were devoted to bait fish production, while 22.9% were utilized in food fish production. Acreage in bait fish, food fish, and fingerling production decreased from 1979 to 1980; however, price increases during this time resulted in a higher total value of the industry
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.
Flying Insect Populations As Sampled By Malaise Trap On Crowley's Ridge In Northeast Arkansas, Lynita M. Cooksey, Harvey E. Barton
Flying Insect Populations As Sampled By Malaise Trap On Crowley's Ridge In Northeast Arkansas, Lynita M. Cooksey, Harvey E. Barton
Journal of the Arkansas Academy of Science
Malaise trap collections from woodlot and open field sampling sites on Crowley's Ridge yielded 10,830 individuals during the months of May, July and September, 1980. Greatest numbers of insects were collected in May, with fewest in September. Four orders comprised 97% of the total catch: Diptera (57%), Lepidoptera (17%), Hymenoptera (15%) and Homoptera (8%). Coleoptera, Hemiptera, Neuroptera, Odonata and Orthoptera comprised the remaining 3%. Ordinal composition and seasonal occurrence patterns are discussed and compared for the two sampling sites.
River Otter In Arkansas: I. Distribution And Harvest Trends, C. Renn Tumlison, Anthony W. King, Lew Johnston
River Otter In Arkansas: I. Distribution And Harvest Trends, C. Renn Tumlison, Anthony W. King, Lew Johnston
Journal of the Arkansas Academy of Science
River otter (Lutra canadensis) management in Arkansas is hampered by a lack of information on population parameters. This initial study on the biology of Arkansas river otter is concerned with present distribution and harvest trends. Otter occur throughout Arkansas, except in the upper Ozark region. A distributional shift, apparently along the Arkansas River, has led to an increase in otter harvest in the Ouachita Mountain region. A dramatic increase in otter harvest over the past four years (1976-1979) is attributable, in part, to a pelt price increase. Additionally, nuisance level beaver (Castor canadensis) populations and an extended trapping season for …
Occurrence Of The Land Planarians Bipalium Kewense And Geoplana Sp. In Arkansas, James J. Daly, Julian T. Darlington
Occurrence Of The Land Planarians Bipalium Kewense And Geoplana Sp. In Arkansas, James J. Daly, Julian T. Darlington
Journal of the Arkansas Academy of Science
No abstract provided.