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Bragasellus Comasi N.Sp., Crustacea Isopoda Asellots Cavernicole D'Espagne Occidentale, Jean-Paul Henry, Guy Magniez

International Journal of Speleology

This new, albinistic and anophtalmous Bragasellus has been collected in the waters of the Cova del Infierno (“Hell Cave”) near Covadonga, province of Asturias, Northwestern Spain.

The Effect Of Cave Entrances On The Distribution Of Cave-Inhabiting Terrestrial Arthropods, Stewart B. Peck

International Journal of Speleology

Populations of cave invertebrates are generally considered to be food-limited. The cave entrance is a major source of food input into the community in the form of decaying organic matter. Thus, the densities of scavenging terrestrial cave invertebrates should be related to the distance from the cave entrance because this represents a measure of food abundance. A test showed this expectation to be true in Crossings Cave, Alabama. A population density peak occurred 10 m inside the cave where the dark zone and detritus infall regions meet. The greatest population peak occurred at 100 m where densities of crickets and …

Les Adaptations À La Volvation Du Squelette Externe De La Tête Chez Caecosphaeroma Burgundum Dollfus, Crustacé Isopode Des Eaux Souterraines, C. Marvillet

International Journal of Speleology

The study of the cephalic capsule of Caecosphaeroma burgundum, a subterranean waters Isopod, demonstrates improved adaptations to volvation; these concern in a similar manner the other regions of the body, particularly the pleotelson. From a primitive aquatic Isopod structure, the head of this blind Spheromid has been completely fashioned by many mechanical factors: posterior margin of pleotelson providing support on the head, relation of anterior angles of the second pereionit and, above all, the mandibular palps and antennae which retract into two deep grooves of the face. The comparative study of the head of other volvational Isopods shows the …

Analysis Of The Sediment Filtering Action Of Grassed Media, Billy J. Barfield, David T. Y. Kao, E. W. Tollner

KWRRI Research Reports

The movement of sediment in non-submerged flow through a rigid grass media was studied experimentally by simulating the media with cylindrical nails. Models of sediment movement were developed from probablistic reasoning and from the use of existing parameters describing total bed material in open channel flow. In the probability analysis, the percent sediment trapped was found to be a power function of the number of potential fall paths, N_f,a particle could make from the surface to the bed while traveling through the filter media. The percent trapped was also found to be an inverse power function of the …

Trace Fossils Of The Brassfield Formation, Lower Silurian, In South-Central Ohio And North Central Kentucky, Eugene J. Murray

Masters Theses

No abstract provided.

Trials With Trickle Irrigation Equipment At Morogoro Preliminary Report, M.E. Parkes, M. E. Madata

Tanzania Journal of Science

The use of trickle irrigation is discussed with reference to Tanzania. A split-split plot design experiment is described in which yields of tomato, onion, and cabbage are compared for trickle and hand-irrigated plots, with different levels of fertiliser treatment. Yields for trickle-irrigated plots were significantly greater only for tomatoes. These results were achieved during July to October and a second attempt to grow the same vegetables during December to March was unsuccessful. Further trials are required to obtain a suitable rotation of vegetable crops from both a nutritional and agronomic point of view. Experience with the trickle irrigation equipment is …

The Contribution Of Subsoil Phosphorus To The Nutrition Of Alfalfa As Influenced By Soil Temperature, Reuel E. Lamborn

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

High bicarbonate-soluble phosphorus (P) in some Utah subsoils may affect the validity of fertilizer recommendations based on plow layer samples. The primary objective of this experiment was to determine the proportion of plant P derived from subsoils at typical Utah soil P levels and soil temperatures.

A calcareous soil very low in bicarbonate-soluble P was treated with various amounts of P and packed into deep pots to provide 24 centimeters of "topsoil" and 27 centimeters of "subsoil". Water baths in a growth chamber were used to control soil temperatures at 14 centigrade and 20 centigrade. Light, air temperature and humidity …

Residual Nitrogen As It Affects Soil Fertility Under Irrigated Agriculture In A Tropical Wet-Dry Climate, Don Carlos Kidman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In the Zapotitan Valley near San Andres, El Salvador, Central America, an experiment was conducted to determine the availability of residual soil N to corn grown during the rainy season. This was an extension of an experiment conducted during the preceding dry season. The variables of the dry season experiment were irrigation method, crop, and rate of fertilizer N application. Soil NO₃-N and NH₄-N were determined by soil sample analysis to a soil depth of 120 cm by 30 cm depth increments. The samples were taken at the end of the dry season experiment and again …

Some Aspects Of Geochemistry Of The Water And Sediment Of Bear Lake, Idaho-Utah, Richard H. Fuller

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Development by man through the last half century has caused a number of changes in Bear Lake. These changes include the diversion of Bear River water into Bear Lake, the pumping of lake water back into the river, and the building of breakwaters and other obstructions along the shore of Bear Lake.

The diversion of Bear River water into the lake has resulted in a yearly addition of an estimated 36,000 metric tons of calcium into the lake, which has caused the precipitation of an estimated minimum 90,000 metric tons of aragonite. The pumping of Bear Lake water back into …

Effect Of Drilling Fluid Components And Mixtures On Plants And Soils, Shahnaz Honarvar (Asad Sangabi)

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Using greenhouse pot techniques, 32 drilling mud components were tested to see if, at a high rate of addition, they reduced plant growth. Green beans and sweet corn were the test plants. The excellent black, silt loam, slightly acidic, uncultivated Dagor soil (Cumulic Haploxeroll) was used for most tests. Rates used were considered to be abnormal level (high rate) and usual (low rate) amounts that might be added in commonly used drilling muds.

Drilling mud components that caused no observable or statistically significant reductions of plant yield are the following: Super Visbestos, (Asbestos), asphalt, Ben-Ex (a vinyl acetate and maleic …

Evaluating The Availability Of Organic Nitrogen In Soils, Saleh M. Romaih

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The main objective of this study was to evaluate the organic N in silty clay loam soil as an indicator of soil fertility. The incubation method was used in this study. The NO₃ -N, the total N percent, and the organic matter were determined. The soil which was used in this study came from Evans Research Farm. The samples were taken from two different N experiments which were adjacent to each other. The soil samples were taken in October-November, 1973, after the crop had been harvested. These two experiments had different cropping histories.

The results of the first experiment …

Ua77/1 Western Alumnus, Vol. 44, No. 4, Wku Alumni Association

WKU Administration Documents

WKU alumni magazine. Features the following articles:

• Dilmarter, Ronald. What Is a Cave, Anyway?
• Gray, David. Water Quality Studied
• Snodgrass, Jim. Spelunking in Big Cave Country
• Morse, Mike. The People of Cave Country
• Wilson, Gordon. Remember When . . . Folklore of the Cave Region
• The Seventh Wonder 'Makes It' to Celluloid - 'First' Cave Film - Mammoth Cave
• 1+2+4=1 Great Season - Track & Field
• Given, Ed. The Little Man Who Stood Tall, Al Almond
• Sutherland, David. Teacher Corps: Western Interns Learn/Teach on the Job
• Thompson, Kelly. An Appreciation - Gordon Wilson
• Cassidy, Frederic. Importance of Depth Collecting - …

Use Of Selected Macroinvertebrates As Indicators Of Sedimentation Effects On Huntington River, Utah, Michael Kenneth Reichert

Theses and Dissertations

Benthic macroinvertebrate communities of Huntington River, Emery County, Utah were studied to determine effects of sedimentation from construction of Electric Lake Dam, a state highway, and two bridges. Approximately 900 benthic samples were collected from riffle areas above, in, and below the construction zone from January, 1971 to December, 1973. Two settling basins below construction sites were effective in limiting scouring of downstream communities. Heavy silt deposition was limited to a 1-km stream reach. Number of indicators, density, and biomass were reduced in the construction zone during periods of sediment input. During periods of scouring, density and biomass were reduced; …

Final Report: Buffalo National River Ecosystems, R. E. Babcock, H. C. Macdonald, D. G. Parker, Joe F. Nix, Kenneth F. Steele, Richard L. Meyer, R. W. Raible, D. A. Becker, R. V. Kilambi, E. H. Schmitz

Arkansas Water Resources Center Technical Reports

The objective of this study was to sample the Buffalo River on a seasonal basis for a year, in order to determine whether any potential water quality problems existed.

A New Kimballian Peccary From Nebraska, C. Bertrand Schultz, Larry D. Martin

Bulletin of the University of Nebraska State Museum (1924–2023)

A new species of Pliocene peccary, Prosthennops (Macrogens) graffhami; is described from the Kimball Formation, Ogallala Group, Frontier County, Nebraska. This new species is the latest in geologic age and most advanced in the genus.

The remains of fossil vertebrates are generally rare in the upper part of the Ogallala group, and some have maintained that Hemphillian faunas such as Coffee Ranch and Smith County, Kansas, represent the latest Ogallala faunas. Later faunas than are typically considered as Hemphillian, containing more advanced forms, occur in the Kimball Formation and deposits of equivalent age. Known faunas which may …

Bears (Ursidae) From The Late Cenozoic Of Nebraska, C. Bertrand Schultz, Larry D. Martin

Bulletin of the University of Nebraska State Museum (1924–2023)

A ramus and partial premaxilla establish the presence of a new subspecies of Indarctos in the upper Pliocene (Kimball Formation, Ogallala Group) of Frontier County, Nebraska. An extremely large species of Agriotherium is represented by fragmentary remains from the middle Pliocene (middle part of Ash Hollow Formation, Ogallala Group) of Sherman County, Nebraska.

This study is part of a series of papers dealing primarily with the fauna of the Kimball formation in Nebraska (Barbour 1927, 1929; Barbour and Schultz, 1941; Schultz and Stout, 1948, 1961; Kent 1963, 1967; Tanner, 1967; Short, 1969; Martin and Tate, 1970; Schultz, Schultz, and Martin, …

Scimitar-Toothed Cats, Machairodus And Nimravides, From The Pliocene Of Kansas And Nebraska, Larry D. Martin, C. Bertrand Schultz

Bulletin of the University of Nebraska State Museum (1924–2023)

"Machairodus catocopis Cope" is shown to be a pseudaelurin cat belonging to the genus Nimravides Kitts. Nimravides thinobates (Macdonald) is a possible synonym of N. catocopis (Cope). Nimravides is compared with the Eurasian Machairodus-like cat, Dinofelis. Machairodus (Heterofelis) coloradensis is reported from the Kimball Formation, upper Pliocene (Kimballian) of Cheyenne County, Nebraska, and from the upper part of the Ash Hollow Formation, Pliocene (Hemphillian) of Sherman County, Nebraska. The Kimballian form is described as a new subspecies, Machairodus coloradensis tanneri.

The genus Machairodus has long been associated with the Hemphillian of North America and the …

Cenozoic Mammals From The Central Great Plains, C. Bertrand Schultz, Larry D. Martin, R. George Corner, Lloyd G. Tanner

Bulletin of the University of Nebraska State Museum (1924–2023)

Includes:

Part 1. Middle and Late Cenozoic Tapirs from Nebraska. By C. Bertrand Schultz, Larry D. Martin, and R. George Corner.

Part 2. Stratigraphic Occurrences of Teleoceras, with a New Kimballian Species from Nebraska. By Lloyd G. Tanner.

Part 3. A New Kimballian Peccary from Nebraska. By C. Bertrand Schultz and Larry D. Martin.

Part 4. Bears (Ursidae) from the Late Cenozoic of Nebraska. By C. Bertrand Schultz and Larry D. Martin.

Part 5. Scimitar-toothed Cats, Machairodus and Nimravides, from the Pliocene of Kansas and Nebraska. By Larry D. Martin and C. Bertrand Schultz.

84 pp

The Kunduchi Mangrove Basin, Alison Mccusker

Tanzania Journal of Science

The pattern of tidal submergence and exposure in the Kunduchi mangrove basin is determined by contour mapping and by relating the contours to published tide predictions. Salinity of the creek effluent is measured at spring and neap tides in both wet and dry seasons. The vegetation of the basin, up to the highest high water level, is described briefly.

Decomposition And Mineralization In An Artemisia Tridentata Community In Northern Nevada, P. L. Comanor

Memorandum

No abstract provided.

Water Loss In Chihuahuan Desert Ants, W. G. Whitford, C. A. Kay, A. M. Schumacher

Memorandum

No abstract provided.

Biology Of Nematodes In Desert Ecosystems, D. W. Freckman, R. Mankau, S. A. Sher

Memorandum

No abstract provided.

Conceptualization And Early Development Of A Water Response Ecosystem Model, D. C. Wilkin, P. W. Lommen, J. V. Robinson, G. S. Innis

Memorandum

No abstract provided.

Measurement Of Evapotranspiration With A Monolith Lysimeter, D. W. Young, D. D. Evans, T. W. Sammis

Memorandum

No abstract provided.

Use Of The Normal Generating Distribution For Estimating Population Survival, H. C. Romesburg

Memorandum

No abstract provided.

Effects Of Rodents On Germination Of Desert Annuals, O. J. Reichman

Memorandum

No abstract provided.

Rodent Seed Foraging Strategies And Competition With Ants In The Sonoran Desert, J. H. Brown

Memorandum

No abstract provided.

Distribution And Balance Of Biomass And Nutrients In Desert Shrub Ecosystem, J. O. Klemmedson, R. C. Barth

Memorandum

No abstract provided.

Process Studies Related To The Deep Creek Ecosystem, C. W. Minshall, J. T. Brock, D. A. Mccullough, R. Dunn, M. R. Mcsorley, R. Pace

Memorandum

No abstract provided.

Comparative Ecology Of The Harvester Ants Pogonomyrmex Barbatus (F. Smith) And Pogonomyrmex Rugosus (Emery), W. G. Whitford, P. Johnson, J. Ramirez

Memorandum

No abstract provided.