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University of Arkansas, Fayetteville

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Articles 211 - 240 of 473

Full-Text Articles in Terrestrial and Aquatic Ecology

Survey Of Mollusca (Bivalva: Unionacea) Inhabiting Myatt Creek, Fulton County, Arkansas, Chris L. Davidson, George L. Harp, John L. Harris Jan 1997

Survey Of Mollusca (Bivalva: Unionacea) Inhabiting Myatt Creek, Fulton County, Arkansas, Chris L. Davidson, George L. Harp, John L. Harris

Journal of the Arkansas Academy of Science

No abstract provided.

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Comparison Of Waterbird Utilization Of Two Northwest Arkansas Reservoirs, Jefferey T. Briggler, Robert C. Dobbs Jan 1997

Comparison Of Waterbird Utilization Of Two Northwest Arkansas Reservoirs, Jefferey T. Briggler, Robert C. Dobbs

Journal of the Arkansas Academy of Science

Waterbird use of two moderately-sized reservoirs in northwest Arkansas was studied in the autumns of 1993 and 1995. In addition to waterbird counts; surface area, water temperature, conductivity, pH, turbidity, dissolved oxygen, macrophyte presences, number of total macroin vertebrates and degree of human activity were evaluated. Lake Fayetteville supported a greater overall waterbird species richness and species abundance than Lake Wedington. The observed number of ducks per hectare showed a significant difference between the lakes in both 1993 and 1995. Surface feeding birds were significantly more abundant at Lake Fayetteville in both 1993 and 1995, whereas diving birds, which feed …

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Distribution And Status Of The Ozark Shiner, Notropos Ozarcanus Meek, In Arkansas, Henry W. Robison Jan 1997

Distribution And Status Of The Ozark Shiner, Notropos Ozarcanus Meek, In Arkansas, Henry W. Robison

Journal of the Arkansas Academy of Science

The Ozark shiner, Notropis ozarcanus, an endemic species of the Ozark Highlands, was studied from 1994-1995 to determine its present distribution and conservation status in Arkansas. One-hundred and four collections of fishes were made from throughout the historic range of the Ozark shiner. A total of 91 Ozark shiners was collected during the two-year study. The present state distribution is described as well as the conservation status of the Ozark shiner in Arkansas. The largest populations seem to be present in the protected Buffalo River.

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First Records For The Blackmask Racer (Coluber Constrictor Latrunculus) In Eastern Arkansas, Stanley E. Trauth Jan 1997

First Records For The Blackmask Racer (Coluber Constrictor Latrunculus) In Eastern Arkansas, Stanley E. Trauth

Journal of the Arkansas Academy of Science

The presence of the blackmask racer (Coluber constrictor latrunculus) in eastern Arkansas was first demonstrated by examination of a series of color slides of live specimens now preserved and deposited in the Arkansas State University Museum of herpetology. Adult color pattern is of paramount importance in the definition of subspecies of C. constrictor, and this is especially true for C. c. latrunculus. This subspecies is characterized by a conspicuous black stripe that extends from the postnasal, through the eye and onto the temporals or anterior dorsal scales. The dorsum is slate gray, and the venter is a pale grayish blue. …

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Survey Of The Fishes In Streams Drainig The Jack Mountain Area, Hot Springs And Garland Counties, Arkansas, With Notes On The Ouachita Madtom (Noturus Lachneri), Renn Tumlison, Creed Tumlison Jan 1996

Survey Of The Fishes In Streams Drainig The Jack Mountain Area, Hot Springs And Garland Counties, Arkansas, With Notes On The Ouachita Madtom (Noturus Lachneri), Renn Tumlison, Creed Tumlison

Journal of the Arkansas Academy of Science

No abstract provided.

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Aquatic Macroinvertebrates Of The White River National Wildlife Refuge, Arkansas, Stephen W. Chordas Iii, George L. Harp, G. W. Wolfe Jan 1996

Aquatic Macroinvertebrates Of The White River National Wildlife Refuge, Arkansas, Stephen W. Chordas Iii, George L. Harp, G. W. Wolfe

Journal of the Arkansas Academy of Science

The objectives of this study were to survey the diversity of the aquatic macroinvertebrates ofthe White River National Wildlife Refuge (WRNWR) and determine relative abundances and distributional and seasonal patterns. No comprehensive investigation of WRNWR aquatic macroinvertebrates had been conducted previously. Thirty sampling stations were established within WRNWR. Each station was sampled twice, providing 60 totalsamples, for 1.5 man hours witha Turtox Indestructible™ dip net. Three black light trap samples were taken to augment the species list. A total of 15,056 individuials representing 219 taxa was taken by dip net samples during the sampling period October 1989-September 1990. Insects comprised …

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Techniques For Radiotracking And Biotelemetry Of Coolwater Sport Fish In Norfork Reservoir, Arkansas, Kenda S. Flores Jan 1996

Techniques For Radiotracking And Biotelemetry Of Coolwater Sport Fish In Norfork Reservoir, Arkansas, Kenda S. Flores

Journal of the Arkansas Academy of Science

Sonic and radio transmitters were implanted in 19 fish in Norfork Reservoir (12 walleye and seven striped bass) to determine the better transmitter type for two coolwater fish species in riverine and deep basin habitats. Radio transmit ters were equipped with either internal or external antennas and both radio and sonic transmitters had thermistors. Sonic transmitters proved superior to radio transmitters forlocating tagged fish after stratification. Fish implanted with radk transmitters were not found after July while fish implanted with sonic transmitters were located 87% of the time. Walleyt remained in the spring-fed riverine portion ofthe reservoir where water temperatures …

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Biodiversity Of Camp Joseph T. Robinson Military Installation In North Little Rock, Arkansas 1994-1995, Joseph R. Penor, Alvan A. Karlin, Gary A. Heidt Jan 1996

Biodiversity Of Camp Joseph T. Robinson Military Installation In North Little Rock, Arkansas 1994-1995, Joseph R. Penor, Alvan A. Karlin, Gary A. Heidt

Journal of the Arkansas Academy of Science

In 1994 the University of Arkansas - Little Rock (UALR), in cooperation with the Nature Conservancy and the Arkansas Natural Heritage Commission, began a faunal assessment of Camp Joseph T. Robinson MilitaryInstallation in North LittleRock, Arkansas. The purpose ofthe study was (1) to determine the distribution and the abundance ofnative ? fauna on the installation, (2) to survey the installation for rare and endangered species, and (3) to determine the impact ofhuman activities on sensitive habitats and on the fauna. During the fall (1994-1996), winter (1995-1996) and spring « (1995-1996) seasons, mammals were located by either live-trapping, mist-netting, scent stations, …

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Ultrastructure Of Cepedietta Virginiensis (Protista: Haptophrynidae), From The Gall Bladder Of The Pickerel Frog, Rana Palustris, In Arkansas, Chris T. Mcallister, Stanley E. Trauth Jan 1996

Ultrastructure Of Cepedietta Virginiensis (Protista: Haptophrynidae), From The Gall Bladder Of The Pickerel Frog, Rana Palustris, In Arkansas, Chris T. Mcallister, Stanley E. Trauth

Journal of the Arkansas Academy of Science

No abstract provided.

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Subspecific Recognition In Arkansas Ringneck Snakes (Diadophis Punctatus), Stanley E. Trauth Jan 1996

Subspecific Recognition In Arkansas Ringneck Snakes (Diadophis Punctatus), Stanley E. Trauth

Journal of the Arkansas Academy of Science

No abstract provided.

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First Arkansas Records For Bigscale Logperch Percina Macrolepida Stevenson (Pisces: Percidae), With Comments On Habitat Preference And Distinctive Characters, Thomas M. Buchanan, Chad Hargrave, Drew Wilson, L. G. Claybrook, Philip W. Penny Jr. Jan 1996

First Arkansas Records For Bigscale Logperch Percina Macrolepida Stevenson (Pisces: Percidae), With Comments On Habitat Preference And Distinctive Characters, Thomas M. Buchanan, Chad Hargrave, Drew Wilson, L. G. Claybrook, Philip W. Penny Jr.

Journal of the Arkansas Academy of Science

Fish samples were collected with seines and rotenone from 21 localities representing five major habitat types along the Red River in Arkansas. The bigscale logperch, Percina macrolepida, was found at 11 of those sites, providing the first records ofthat species from the state. The primary preferred habitat parameters for bigscale logperch are no current, a sand and/or silt substrate, and a water depth of 1.0-2.0 m. Percina macrolepida is morphologically very similar to the widespread and common logperch, P. caprodes, but can be distinguished from all forms of that species in Arkansas by a combination of characters. Snout shape and …

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Dietary Diversity And Overlap Between Two Subspecies Of Spadefoot Toads (Scaphiopus Holbrookii Holbrookii And S. H. Hurterii) In Arkansas, David H. Jamieson, Stanley E. Trauth Jan 1996

Dietary Diversity And Overlap Between Two Subspecies Of Spadefoot Toads (Scaphiopus Holbrookii Holbrookii And S. H. Hurterii) In Arkansas, David H. Jamieson, Stanley E. Trauth

Journal of the Arkansas Academy of Science

The food habits of adult spadefoot toads (Scaphiopus h. holbrookii and S. h. hurterii) collected in Arkansas were exam ined during this study. Thirty-six adult S. h. holbrookii (29 males and 7 females) and 48 adult S. h. hurterii (23 males and 2 females) were necropsied. Most specimens were collected over a 10-year span oftime (1985-94). Alltoads were taken from breeding aggregations which were visited periodically inany given year (frommid-February to late April).Prey items wer found in the stomachs of 13 (36.1%) of the S. h. holbrookii and 23 (48.0%) ofthe S. h. hurterii. Scaphiopus h. holbrookii and h. hurterii …

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New Distributional Records For Freshwater Mussels In The Ouachita River, Arkansas, William R. Posey Ii, John L. Harris, George L. Harp Jan 1996

New Distributional Records For Freshwater Mussels In The Ouachita River, Arkansas, William R. Posey Ii, John L. Harris, George L. Harp

Journal of the Arkansas Academy of Science

Two freshwater mussel species thought to have been extirpated from Arkansas have recently been rediscovered in the Ouachita River in the vicinity of Camden. Prior to this survey, Wheeler (1918) last reported Arkansia wheeleri Ortmann and Walker, the Ouachita rock-pocketbook, and Cumberlandia monodonta (Say), the spectaclecase, from the Ouachita River near Arkadelphia. Quadrula apiculata (Lea), the southern mapleleaf, has been reported from Arkansas on two occasions, but due to taxonomic uncertainty, it has not been recognized in recent compilations of Arkansas freshwater mussels. During this survey, the southern mapleleaf was collected from the Ouachita River which verifies its occurrence within …

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Distribution And Natural History Aspects Of The Arkansas Endemic Crayfish, Cambarus Causeyi Reimer, Henry W. Robison, Gene Leeds Jan 1996

Distribution And Natural History Aspects Of The Arkansas Endemic Crayfish, Cambarus Causeyi Reimer, Henry W. Robison, Gene Leeds

Journal of the Arkansas Academy of Science

Recent collections of the Arkansas endemic crayfish, Cambarus causeyi Reimer, have yielded important information concerning its distribution and habitat within the state. New locations and county records are enumerated, habitat preferences discussed, and status ofthis heretofore rare crayfish species is clarified.

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One-Year Study Of The Species Diversity And Relative Abundance Of Snakes And Lizards In The Jack Mountain Region Of Hot Springs County, Arkansas, Vincent A. Cobb, Jeff A. Summerhill Jan 1996

One-Year Study Of The Species Diversity And Relative Abundance Of Snakes And Lizards In The Jack Mountain Region Of Hot Springs County, Arkansas, Vincent A. Cobb, Jeff A. Summerhill

Journal of the Arkansas Academy of Science

No abstract provided.

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Microorganisms Associated With The Carapace And Plastron Of Aquatic Turtles (Pseudemys Concinna And Trachemys Scripta) In Southwestern Arkansas, Renn Tumlison, Sharon Clark Jan 1996

Microorganisms Associated With The Carapace And Plastron Of Aquatic Turtles (Pseudemys Concinna And Trachemys Scripta) In Southwestern Arkansas, Renn Tumlison, Sharon Clark

Journal of the Arkansas Academy of Science

No abstract provided.

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Recent Record Of The White Sucker, Catostomus Commersoni, In The White River System, Arkansas, James C. Petersen, Faron D. Usrey, William E. Keith, James A. Wise Jan 1996

Recent Record Of The White Sucker, Catostomus Commersoni, In The White River System, Arkansas, James C. Petersen, Faron D. Usrey, William E. Keith, James A. Wise

Journal of the Arkansas Academy of Science

No abstract provided.

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Cavity Protection Techniques For Red-Cockaded Woodpeckers, Warren G. Montague Jan 1995

Cavity Protection Techniques For Red-Cockaded Woodpeckers, Warren G. Montague

Journal of the Arkansas Academy of Science

Population growth of red-cockaded woodpeckers (Picoides borealis) is often limited by the availability of suitable cavities. Structural damage to natural and artificial cavities intended for use by P. borealis is common. Roost and nest cavities of P. borealis often become occupied by other cavity-dependent species. Techniques for preventing damage to artificial cavities and for deterring southern flying squirrel (Glaucomys volans) use of otherwise serviceable cavities are described. Such cavity protection techniques may be necessary to prevent extirpation of small, isolated populations of P. borealis.

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5'-Nucleotidase And Thrombin-Like Activities Of Selected Crotalid Venoms, Ali M.S. Shams, Dewey H. Sifford, Bob D. Johnson Jan 1995

5'-Nucleotidase And Thrombin-Like Activities Of Selected Crotalid Venoms, Ali M.S. Shams, Dewey H. Sifford, Bob D. Johnson

Journal of the Arkansas Academy of Science

Thrombin-like activities were not observed inCrotalus basiliscus, C. molossus and C. scutulatus scutulatus crude venoms. 5'-Nucleotidase specific activities of 0.863, 0.273 and 5.520 units/mg of crude venom protein were observed inC. basiliscus, C. molossus and C. s. scutulatus venoms, respectively. Concanavalin ASepharose 4 B (Con A)affinitychromatography yielded two fractions from each of the crude venoms. Ineach instance, both fractions exhibited 5'-nucleotidase activities and the Con A-binding proteins had higher activities than the Con A-nonbinding proteins. 5'-Nucleotidase activities inthe DEAESephadex A-50 chromatographic fractions were localized in the first elution fraction and the last fraction(s) to elute. EDTAhad no effect on the …

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Vertebrate Fauna Of Abandoned Mines At Gold Mine Springs, Independence County, Arkansas, Chris T. Mcallister, Stanley E. Trauth, Linda D. Gage Jan 1995

Vertebrate Fauna Of Abandoned Mines At Gold Mine Springs, Independence County, Arkansas, Chris T. Mcallister, Stanley E. Trauth, Linda D. Gage

Journal of the Arkansas Academy of Science

No abstract provided.

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Vertebrate Prey Of Selected Arkansas Snakes, Stanley E. Trauth, Chris T. Mcallister Jan 1995

Vertebrate Prey Of Selected Arkansas Snakes, Stanley E. Trauth, Chris T. Mcallister

Journal of the Arkansas Academy of Science

No abstract provided.

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Egg Mass Characteristics Of Terrestrial Morphs Of The Mole Salamander, Ambystoma Talpoideum (Caudata:Ambystomatidae), From Northeastern Arkansas And Clutch Comparisons With Other Ambystoma Species, Stanley E. Trauth, Robert L. Cox Jr., J. D. Wilhide, Hilary J. Worley Jan 1995

Egg Mass Characteristics Of Terrestrial Morphs Of The Mole Salamander, Ambystoma Talpoideum (Caudata:Ambystomatidae), From Northeastern Arkansas And Clutch Comparisons With Other Ambystoma Species, Stanley E. Trauth, Robert L. Cox Jr., J. D. Wilhide, Hilary J. Worley

Journal of the Arkansas Academy of Science

No abstract provided.

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Long-Range Dispersal Of A Red-Cockaded Woodpecker, Warren G. Montague, George A. Bukenhofer Jan 1994

Long-Range Dispersal Of A Red-Cockaded Woodpecker, Warren G. Montague, George A. Bukenhofer

Journal of the Arkansas Academy of Science

No abstract provided.

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Pre-Spawning Migration Of Channel Catfish Into Three Warmwater Tributaries-Effects Of A Cold Tailwater, Gary L. Siegwarth, James E. Johnson Jan 1994

Pre-Spawning Migration Of Channel Catfish Into Three Warmwater Tributaries-Effects Of A Cold Tailwater, Gary L. Siegwarth, James E. Johnson

Journal of the Arkansas Academy of Science

Spring migrations of channel catfish (Ictalurus punctatus) into the Kings, Mulberry and Buffalo rivers, Arkansas, were compared to determine adult catfish migration into a warm water river that flows into a cold tailwater. The Buffalo River flows into a cold tailwater reach of the White River and supports a sparse channel catfish population compared to similar rivers in the region that do not flow into cold tailwaters. This is an important factor because many recent studies have demonstrated that channel catfish make pre-spawning migrations into tributary streams and may contribute significantly to tributary populations. To assess channel catfish migration, hoop …

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Spatial Distributions Of Three Species Of Desmognathus In A North Carolina Stream, James J. English, Alvan A. Karlin, Laurie D. Lacer Jan 1994

Spatial Distributions Of Three Species Of Desmognathus In A North Carolina Stream, James J. English, Alvan A. Karlin, Laurie D. Lacer

Journal of the Arkansas Academy of Science

Salamanders of the family Plethodontidae comprise the most common salamanders in eastern North America. It is not uncommon for more than 10 plethodontid species to occur syntopically in one creek. The purpose of this research was to determine whether the spatial distribution of one species affected the spatial distribution of other species. Geographic Information System technology and nearest-neighbor analyses were used to determine the spatial distributions of three species of the salamander genus Desmognathus. The analysis demonstrates that D. ochrophaeus and D. monticola change their spatial use from a random distribution during the day to a clumped distribution during evening …

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Long-Term Study Of Benthos In Dardanelle Reservoir, John D. Rickett, Robert L. Watson Jan 1994

Long-Term Study Of Benthos In Dardanelle Reservoir, John D. Rickett, Robert L. Watson

Journal of the Arkansas Academy of Science

Winter, spring, summer, and autumn samples were collected with a 15.24x15.24-cm Ekman grab from five stations on Dardanelle Reservoir, Pope County, Arkansas during the 24-year period from 1970-1993. Twenty-three taxa representing the eight phyla, Cnidaria, Nematoda, Nematomorpha, Entoprocta, Ectoprocta, Mollusca, Annelida, and Arthropoda, were collected. Numerically, oligochaetes comprised 36%, whereas chironomid larvae, Chaoborus larvae, and Hexagenia naiads mad up 29.7, 17, and 12%, respectively, of the samples. Asiatic clams, fingernail clams, amphipods, and Urnatella were collected frequently during the last 10 years but were not abundant. Other taxa were taken infrequently but consistently during the study period. Densities of all …

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Pleistocene And Halocene Remains From The Red River, Southwest Arkansas, Terry A. Sanders Jan 1994

Pleistocene And Halocene Remains From The Red River, Southwest Arkansas, Terry A. Sanders

Journal of the Arkansas Academy of Science

Vertebrate remains have been found on gravel bars of the Red River in southwest Arkansas, northeast Louisiana, and east Texas. The majority of these specimens were recovered by amateur archaeologists and Dr. Frank Schambach of the Arkansas Archaeology Survey. Extinct species of bison (Bison sp.), mastodon (Mammut americanum), pampathere (Holmesina septentrionalis), llama (Palaeolama mirifica), tortoises (Geochelone sp.), and (Terrapene sp.) indicate a Pleistocene component in the region's alluvium. The giant tortoise, pampathere, and llama represent first known occurrences of these species for the state of Arkansas. Search times between finds were recorded for seven localities. The richest gravel bar averaged …

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Renewal And Recovery: Shortleaf Pine /Bluestem Grass Ecosystem And Red-Cockaded Woodpeckers, George A. Bukenhofer, Joseph C. Neal, Warren G. Montague Jan 1994

Renewal And Recovery: Shortleaf Pine /Bluestem Grass Ecosystem And Red-Cockaded Woodpeckers, George A. Bukenhofer, Joseph C. Neal, Warren G. Montague

Journal of the Arkansas Academy of Science

No abstract provided.

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Distributional Records Of The Badger (Taxidea Taxus) In Arkansas, Michael E. Cartwright, Gary A. Heidt Jan 1994

Distributional Records Of The Badger (Taxidea Taxus) In Arkansas, Michael E. Cartwright, Gary A. Heidt

Journal of the Arkansas Academy of Science

No abstract provided.

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First Record Of The Channel Shiner, Notropis Wickliffi Trautman, In Arkansas And Comments On The Current River Populations Of Notropis Volucellus (Cope), Henry W. Robison, Thomas M. Buchanan Jan 1994

First Record Of The Channel Shiner, Notropis Wickliffi Trautman, In Arkansas And Comments On The Current River Populations Of Notropis Volucellus (Cope), Henry W. Robison, Thomas M. Buchanan

Journal of the Arkansas Academy of Science

No abstract provided.

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