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University of Arkansas, Fayetteville

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Articles 421 - 450 of 473

Full-Text Articles in Terrestrial and Aquatic Ecology

Checklist Of Spiders Collected In Mississippi Compared With Preliminary Study Of Arkansas Spiders, Peggy Rae Dorris Jan 1972

Checklist Of Spiders Collected In Mississippi Compared With Preliminary Study Of Arkansas Spiders, Peggy Rae Dorris

Journal of the Arkansas Academy of Science

This paper presents a comparative list of spiders collected in the 82 counties of Mississippi and in a random sampling of the spiders of Arkansas. The Mississippi list includes 26 families with 263 species, whereas the Arkansas collection includes 24 families with 206 species. Various methods of collecting were used in an effort to sample all populations and to contribute to knowledge of the taxonomy both Mississippi and Arkansas.

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Studies Of Arundinaria: Experimental Induction Of Flowering And Additional Observation In The Field, Daniel L. Marsh Jan 1971

Studies Of Arundinaria: Experimental Induction Of Flowering And Additional Observation In The Field, Daniel L. Marsh

Journal of the Arkansas Academy of Science

Arundinaria has been observed for three successive seasons at a site near Amity, Arkansas. In advance of the 1971 flowering period rhizomes were taken from the field, pruned, and placed either in an environmental chamber or in the greenhouse in water or in sandy soil. Flowering occurred under each condition, but was most rapid and profuse in transplants growing in sandy soil in the greenhouse. Observations point to the possibility of induction of flowering or to the possible existence of an annually flowering race. Possible economic uses are considered.

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Survey Of The Vascular Flora Of Poinsett County, Arkansas, Michael I. Johnson Jan 1971

Survey Of The Vascular Flora Of Poinsett County, Arkansas, Michael I. Johnson

Journal of the Arkansas Academy of Science

A survey of the vascular flora of Poinsett County, Arkansas was made over a period of 13 months. The fifteen field trips taken were planned to include representative soil associations and geographic areas within the county. Three hundred sixty-three species and varieties from eighty-three families were collected or examined.

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Phosphorescent Animal Forms Of Arkansas, Peggy Rae Dorris Jan 1971

Phosphorescent Animal Forms Of Arkansas, Peggy Rae Dorris

Journal of the Arkansas Academy of Science

Two phosphorescent animal forms, Euryurus sp. and Centruroides vittatus, were collected with a black light in an attempt to collect phosphorescent spiders. Both the millipede and the scorpion were easily observed by the bright phosphorescent yellow color which glowed in the presence of the black light

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Relative Abundance, Seasonal Distribution And Taxonomy Of Sphingidae Of Northeast Arkansas, Charles L. Selman, Harvey E. Barton Jan 1971

Relative Abundance, Seasonal Distribution And Taxonomy Of Sphingidae Of Northeast Arkansas, Charles L. Selman, Harvey E. Barton

Journal of the Arkansas Academy of Science

A total of 38 species of sphingids, with keys and descriptions, are reported from Northeast Arkansas. Graphs and tables are presented to show relative abundance and seasonal distribution. Drawings of genitalia, fore tibiae, and forewings, as well as photographs of species in the key are included.

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Pre-Impoundment Limnological Study Of The Strawberry River In Northeastern Arkansas, Henry W. Robison, George L. Harp Jan 1971

Pre-Impoundment Limnological Study Of The Strawberry River In Northeastern Arkansas, Henry W. Robison, George L. Harp

Journal of the Arkansas Academy of Science

A study of pre-impoundment limnological characteristics of the Strawberry River was made from August, 1967 to June, 1968. Two collecting stations were established, one upstream which would not be inundated and a lower station which would be inundated when impoundment was complete. The Strawberry River was characterized by high alkalinity and pH, low carbon dioxide and turbidity, and adequate oxygen values. Plankton was characterized by limited numbers of Staurastrum, Gomphonema, and Rotatoria. Pool-riffle communities were ill-defined. Chironomidae, Oligochaeta and Ephemeroptera were dominant pool macroinvertebrates among 13 taxa collected. Of the 20 taxa collected in riffles Trichoptera, Ephemeroptera, Simuliidae and Chironomidae …

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Ichthyofaunal Diversification And Distribution In The Big Creek Watershed, Craighead And Greene Counties, Arkansas, James T. Jenkins, George L. Harp Jan 1971

Ichthyofaunal Diversification And Distribution In The Big Creek Watershed, Craighead And Greene Counties, Arkansas, James T. Jenkins, George L. Harp

Journal of the Arkansas Academy of Science

Big Creek is a relatively small deltaic stream, in northeastern Arkansas, in an area of intense cultivation. Recently it has been dredged in the interest of flood control. Lost Creek and Mud Creek are the major tributaries of Big Creek and collectively drain the Big Creek watershed. The streams were found to have relatively low alkalinity, moderate carbon dioxide, adequate oxygen values, and relatively high turbidity. Channeling of Big Creek and Lost Creek has effectively destroyed distinct pool-riffle biocies and reduced the number of acceptable spawning areas. Lost Creek, also, receives effluent from residential dwellings, a secondary treatment sewage plant, …

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Notes On The Habitat And Distribution Of The Odonata Of Franklin County, Arkansas, Jim Houston Jan 1970

Notes On The Habitat And Distribution Of The Odonata Of Franklin County, Arkansas, Jim Houston

Journal of the Arkansas Academy of Science

No abstract provided.

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Butterflies Of Arkansas Family Nymphalidae, E. Phil Rouse Jan 1970

Butterflies Of Arkansas Family Nymphalidae, E. Phil Rouse

Journal of the Arkansas Academy of Science

No abstract provided.

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Additions To The Arkansas Flora, Edwin B. Smith Jan 1970

Additions To The Arkansas Flora, Edwin B. Smith

Journal of the Arkansas Academy of Science

No abstract provided.

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Observation Of Flowering In Arundinaria Gigantea (Walt.) Chapm. In Arkansas, Daniel L. Marsh Jan 1970

Observation Of Flowering In Arundinaria Gigantea (Walt.) Chapm. In Arkansas, Daniel L. Marsh

Journal of the Arkansas Academy of Science

No abstract provided.

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Freshwater Algae Of Arkansas Ii. New Additions, Richard L. Meyer, James H. Wheeler, J. R. Brewer Jan 1970

Freshwater Algae Of Arkansas Ii. New Additions, Richard L. Meyer, James H. Wheeler, J. R. Brewer

Journal of the Arkansas Academy of Science

No abstract provided.

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Floristic Elements Of The Pope County, Arkansas, Area, Gary E. Tucker, Bill Grabill Jan 1970

Floristic Elements Of The Pope County, Arkansas, Area, Gary E. Tucker, Bill Grabill

Journal of the Arkansas Academy of Science

No abstract provided.

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Glyptostrobus Europaeus (Brongn.) Heer In Arkansas, Eugene B. Wittlake Jan 1970

Glyptostrobus Europaeus (Brongn.) Heer In Arkansas, Eugene B. Wittlake

Journal of the Arkansas Academy of Science

Glyptostrobus europaeus (Brongn.) Heer, a fossil gymnosperm is found at a few locations in central North America, in deposits of the Eocene. This work cites previously reported localities and reports a new site at Hooker, Arkansas. This deposit appears to be the most abundant for specimens of G. europaeus in the Eocene of North America. History of the Hooker site, characteristics of the living species G. pensilis (Abel) Koch and G. europaeus is presented. Worldwide distribution of both species through time, is discussed. Specimens of many parts of the life cycle of G. europaeus are recorded and illustrated.

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Age And Growth Of The Blue Catfish, Ictalurus Furcatus, In The Arkansas River, D. Leroy Gray Jan 1970

Age And Growth Of The Blue Catfish, Ictalurus Furcatus, In The Arkansas River, D. Leroy Gray

Journal of the Arkansas Academy of Science

No abstract provided.

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Effect Of Domestic Effluent On Two Spring Surveys Of Fishes In Lost Creek, Craighead County, Arkansas, John K. Beadles Jan 1970

Effect Of Domestic Effluent On Two Spring Surveys Of Fishes In Lost Creek, Craighead County, Arkansas, John K. Beadles

Journal of the Arkansas Academy of Science

Lost Creek is representative of deltonic streams of the St. Francis Basin possessing characteristics of being turbid. It has a low flow velocity except during the annual spring rains. Lost Creek meanders approximately 18 km. before receiving effluents and empties into Big Creek approximately 4 km. west of Jonesboro, Arkansas. Five collecting stations were studied in 1966 while six stations were sampled in 1970. Some fishes have been found to tolerate moderate amounts of domestic effluents and it is probable that the two species Lepomis cyanellus and Ictalurus melas, collected within the effluents, were more resistant than the other species …

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Digitaria Adscendens And D. Sanguinalis (Gramineae) In Arkansas, Albert Robinson Jr. Jan 1969

Digitaria Adscendens And D. Sanguinalis (Gramineae) In Arkansas, Albert Robinson Jr.

Journal of the Arkansas Academy of Science

No abstract provided.

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Survey Of The Helminth Parasites Of Selected Game Fishes Of Lake Fort Smith, Arkansas, David A. Becker, Walter C. Houghton Jan 1969

Survey Of The Helminth Parasites Of Selected Game Fishes Of Lake Fort Smith, Arkansas, David A. Becker, Walter C. Houghton

Journal of the Arkansas Academy of Science

No abstract provided.

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Some Noteworthy Species Of The Arkansas Flora, Gary E. Tucker Jan 1969

Some Noteworthy Species Of The Arkansas Flora, Gary E. Tucker

Journal of the Arkansas Academy of Science

No abstract provided.

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Freshwater Algae Of Arkansas, Richard L. Meyer Jan 1969

Freshwater Algae Of Arkansas, Richard L. Meyer

Journal of the Arkansas Academy of Science

No abstract provided.

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Survey Of The Arkansas Campanulaceae (Including The Lobeliaceae), Edwin B. Smith Jan 1969

Survey Of The Arkansas Campanulaceae (Including The Lobeliaceae), Edwin B. Smith

Journal of the Arkansas Academy of Science

This paper is a summary of the Campanulaceae of Arkansas, based on the material on file in the University of Arkansas herbarium. A key to the species is included, followed by an alphabetical listing by genus and species of the taxa in the Campanulaceae known to occur in the state. After each taxon, the following information is included in this order: blooming period (as indicated on our material), known distribution in general terms (NW-northwest, E-east, G-general, C- central, etc.), habitat, chromosome number (as reported in Darlington & Wylie, 1955; in the Index to Plant Chromosome Numbers, Vol. I.II, and Supplement; …

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Study Of The Herbaceous, Vascular Plants From Selected Sites In Faulkner County, Arkansas, Sara Mills Barnett Jan 1969

Study Of The Herbaceous, Vascular Plants From Selected Sites In Faulkner County, Arkansas, Sara Mills Barnett

Journal of the Arkansas Academy of Science

No abstract provided.

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Dardanelle Reservoir Illinois Bayou Embayment Background Survey, Clarence B. Sinclair Jan 1969

Dardanelle Reservoir Illinois Bayou Embayment Background Survey, Clarence B. Sinclair

Journal of the Arkansas Academy of Science

No abstract provided.

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Some Aspects Of The Age And Growth Of The Longear Sunfish, Lepomis Megalotis, In Arkansas Waters, Edmond J. Bacon Jr., Raj V. Kilambi Jan 1968

Some Aspects Of The Age And Growth Of The Longear Sunfish, Lepomis Megalotis, In Arkansas Waters, Edmond J. Bacon Jr., Raj V. Kilambi

Journal of the Arkansas Academy of Science

No abstract provided.

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Maturity And Spawning Periodicity Of The Gizzard Shad, Dorosoma Cepedianum, (La Sueur), In Beaver Reservoir, Raymond E. Baglin Jr., Raj V. Kilambi Jan 1968

Maturity And Spawning Periodicity Of The Gizzard Shad, Dorosoma Cepedianum, (La Sueur), In Beaver Reservoir, Raymond E. Baglin Jr., Raj V. Kilambi

Journal of the Arkansas Academy of Science

No abstract provided.

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Enigma Of Penstemon Tenuis Small (Scrophulariaceae), Aileen L. Mcwilliam Jan 1968

Enigma Of Penstemon Tenuis Small (Scrophulariaceae), Aileen L. Mcwilliam

Journal of the Arkansas Academy of Science

No abstract provided.

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Coreopsis Saxicola Alex. Var. Duncanii Sherff (Compositae) In Arkansas, Edwin B. Smith Jan 1968

Coreopsis Saxicola Alex. Var. Duncanii Sherff (Compositae) In Arkansas, Edwin B. Smith

Journal of the Arkansas Academy of Science

No abstract provided.

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Report On The Gramineae Of The Arkansas Springfield Plateau, Albert Robinson Jr. Jan 1968

Report On The Gramineae Of The Arkansas Springfield Plateau, Albert Robinson Jr.

Journal of the Arkansas Academy of Science

No abstract provided.

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Subspecies And Ecology Of Meadowlarks In Northwest Arkansas, Robert Lowery, Earl L. Hanebrink Jan 1967

Subspecies And Ecology Of Meadowlarks In Northwest Arkansas, Robert Lowery, Earl L. Hanebrink

Journal of the Arkansas Academy of Science

No abstract provided.

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Ground Beetles Of The Genus Lebia Latreille In Arkansas (Coleoptera: Carabidae): Ecology And Geographical Distribution, R. Hemenway, W. H. Whitcomb Jan 1967

Ground Beetles Of The Genus Lebia Latreille In Arkansas (Coleoptera: Carabidae): Ecology And Geographical Distribution, R. Hemenway, W. H. Whitcomb

Journal of the Arkansas Academy of Science

No abstract provided.

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