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Distribution And Abundance Of Soft-Sediment Intertidal Polychaetes, Hassan Muftah Howege

University of the Pacific Theses and Dissertations

Polychaetes are important components of the intertidal sandflat community in Lawson’s Flat, Dillon Beach, California. Little is known about the factors that control the relative abundance of these species. In view of the extensive evidence of the importance of interactions between component species in intertidal communities it is of interest to obtain information that would facilitate future experimental work of such interactions. This study documents seasonal changes in the abundance of the polychaete component of the intertidal community. Attention is directed at possible factors that might affect seasonal changes in distribution. A major finding is that certain herbivorous polychaetes exhibit …

La Dynamique De Population De L'Isopode Proasellus Slavus Ssp.N. Et Les Larves De Chironomides Dans L'Hyporhéique De La Drave Du Point De Vue De La Pollution, Milan Meštrov, Romana Lattinger-Penko, Vlatka Tavčar

International Journal of Speleology

If we sum up the data and observations derived from our researches on the Drava river, we conclude after consideration of surface water fauna and after comparison of chemical parameters that it influences the hyporheic water of a rough gravel-sandy alluvium more than 2 m deep, while in the compact sandy substratum it has less influence. The next conclusion is that the horizontal and vertical distribution of Proasellus slavus ssp.n. in the alluvium of the Drava river, depends upon the granulation of substratum, with reference so the largeness of interstices; that the populations vary in density and structure according to …

The Distribution Of The Fauna In The Interstitial Habitats Of Riverine Sediments Of The Danube And The Piesting (Austria), Dan L. Danielopol

International Journal of Speleology

The interstitial fauna living in the riverine sediments of the Danube and Piesting have been investigated in Lower Austria. The nematodes, oligochaetes and cyclopoids are the most abundant groups (they represent up to 80% of the total fauna). The harpacticoids, the insect larvae, the isopods, the amphipods, the cladocera and the limnohalacarids are poorly represented (generally under 20% of the total fauna). The absence of hydrachnellids is striking. The vertical distribution of the interstitial fauna shows for several groups i.e. limnohalacarids, ostracods, isopods, harpacticoids, that the epigean species are quantitatively better represented in the upper sediment layers instead of the …

Recent Karyological Research On Cave Planarians From Europe, Nicole Gourbault

International Journal of Speleology

Very few studies have been involved with karyology in Planarian living in total darkness. The first results indicate however, that most of the hypogeous Paludicoles have a diploid chromosome number notably superior to the similar surface forms. In another connection a relative uniformity of the morphology of the chromosome is observed in the same group, so that the studied karyotypes show a similar general aspect.

Studies On Subterranean Drift Of Stygobiont Crustaceans (Niphargus, Crangonyx, Graeteriella), Siegfried Husmann

International Journal of Speleology

In two groundwater canals of a water work in West Germany the drift of stygobiont groundwater organisms was investigated. The collections were made at two-hour intervals. Niphargus aquilex Schiodte, Crangonyx subterraneus Bate and Graeteriella unisetigera (Graeter) were considered more closely, because they were caught in greater numbers than other organisms. These stygobionts show no sign of dial periodicity.

An Introduction To The Japanese Groundwater Animals With Reference To Their Ecology And Hygienic Significance, Kôichi Matsumoto

International Journal of Speleology

1) Nearly two hundred species of troglobites are known from the groundwaters of Japan. Most of these troglobiontic species, sixteen of seventy-seven genera, and what is more, four of forty-seven families are endemic to Japan. Uchidastygacaridae, Nipponacaridae, and Kantacaridae are endemic acaridan families of Japan. The coleopterous family, Phreatodytidae, is alto endemic to Japan. 2) Though studies on Protozoa, Turbellaria, Annelida, Aschelminthes, and Ostracoda, etc. remain sparse, the interstitial fauna is actively investigated recently and many specimens of Bathynellacea, Ingolfiella, Bogidiella, Microcerberus, Pseudovermis (Opisthobranchia), and Nerillidae, etc. have been collected from freshwater and marine environments. 3) None of the troglobites …

New Data On The Foraminifera Of The Groundwaters Of Middle Asia, V. I. Mikhalevich

International Journal of Speleology

New data obtained during the expedition to Middle Asia (1973) essentially enlarge our knowledge of foraminifera living in underground waters. Seven new species were discovered in the wells of the Kara-Kum and Ust-Urt deserts. All of them contain cytoplasma. The wells are situated in the region of bedding of underground waters of the heightened salinity in the zone of balance of runoff and evaporation. The majority of the species described in our work like many of the species recorded from the underground waters earlier (Brodsky, 1928; Nikoljuk, 1968; Jankovskaja and Mikhalevich, 1972) belong to the genera living in coastal brackish …

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 …

1976 Phosphorus And Sulphur Group, J. W. Bowden, R J. Lunt, K F. Longbottom, W E. Hawkins

Experimental Summaries - Plant Research

Stocking x Super. rate trials - 66M30, 62MB9, 68BR7. Crossed plot trials - residual value. P x K on Pasture - 74TS4, 74M06, 75GE6. N x P on· Wheat - 75M09. P x Species - 75LG4, 75JE5. Maintenance P x S trials - Wheat Belt Research Station - 65A1; C5, N5, 69WH15. High Rainfall Areas - 68B1, 69E6, 69AL2. Farmers residual value - 66N07, 66ME3,67N011, 66NA3, 66LG1, 68LG1, 66M06, 67M01, 67GE2, 67N05, 67N04, 66N09. Miscellaneous Cropping Trials - Super x Spacing - 76ME26, 76ES8, 9 and 10. Super Study rate and spacing - 76NA7, 76N05, 76JE8. Continuous cropping - 75LG26, …

1976 Pasture Species Investigations - High Rainfall Area, D A. Nicholas

Experimental Summaries - Plant Research

1. Clover cultivar grazing trial - North Bannister - 68NA1. 2. Perennial versus Annual grass grazing trial Manjimup Research Station - 72MN5. 3. Pasture types x stocking rate trial - Denmark - 72D1. 4. Clover cultivar evaluation trial - Denmark - 76D4. 5. Clover cultivar evaluation trial - Esperance - 76ES11.

Review Of The Oligocene Cetacea, Frank C. Whitmore Jr., Albert E. Sanders

United States Geological Survey: Staff Publications

Early in the Oligocene Epoch, Cetacea of the primitive suborder Archaeoceti had already declined sharply from their apparent abundance in Eocene seas. By the beginning of the Miocene, archaeocetes are known to have survived only in the northeast Atlantic and southwest Pacific Oceans. Concurrently with this decline, the first members of the suborders Odontoceti and Mysticeti appeared. They are known from only a few specimens, mostly in upper Oligocene deposits, on both coasts of North America, in Germany, Austria, Italy, the Caucasus, Azerbaijan, Australia, and New Zealand. Two important odontocete genera, Agorophius and Xenorophus, come from beds that are …

Biological Inventory Of The Southern Nevada Water Project, Second Stage, W. Glen Bradley, J. Scott Miller

Publications (WR)

The present report is a biological inventory of the Southern Nevada Water Project, Second Stage. The boundaries of the project encompass sections of North Las Vegas, Las Vegas, East Las Vegas and areas along Las Vegas Wash extending to its drainage point in Las Vegas Bay in Lake Mead. Therefore, it encompasses a wide array of ecological situations and landscapes ranging from essentially natural to various stages of urban development.

This biological inventory presents basic ecological classifications, descriptions of vegetation, lists of vascular plants and vertebrates known to occur in the area. Each major group, i.e., plants, fish, amphibians, reptiles, …

Video Tape : An Old-New Instructional Aid In The Physics Laboratory, Fanny Mercedes Torres Holguin

University of the Pacific Theses and Dissertations

My objective is to use the video-tape as another medium -- along with overhead projector, textbooks, guides of apprenticeship, pictures, lab equipment and suggestions from the programs and new trends in physics teaching -- being used to supplement our efforts in trying to reach more and more of our students The use of audiovisual media, and generally speaking the use of technology in education, can be constructive or destructive, can e very powerful in developing "human beings" or "robots", can increase the rate of apprenticeship, or can produce an educational catastrophe. However, it will heavily depend on the the professor, …

Nitrogen Cycling In Microcosms And Application To The Biology Of The Northern Arm Of The Great Salt Lake, John C. Stube, Frederick J. Post, Donald B. Porcella

Reports

No abstract provided.

Hydrologic Impact Of Burning And Grazing On A Chained Pinyon-Juniper Site In Southeastern Utah, Gerald F. Gifford, John C. Buckhouse, Frank E. Busby

Reports

No abstract provided.

Studies On Glyoxalase-I, Liang-Po Bebe Han

Chemistry and Chemical Biology ETDs

Glyoxalase-I has been purified 3000-fold from rat erythrocytes by a procedure employing chloroform-ethanol fractionation and chromatography on CM-Sephadex, Sephadex G100, and DEAE-Sephadex. Two major chromatographically distinct glyoxalase-I activity peaks (designated Form I and Form II) were resolved when a shallow linear salt gradient was used on a DEAE-Sephadex A50 column. Form I showed a specific activity of 861 I.U./mg protein and Form II showed a specific activity of 783 I.U./mg protein although neither was purified to homogeneity. Form I and Form II were distinguishable by disc polyacrylamide gel electrophoresis but indistinguishable kinetically. Rat erythrocyte glyoxalase-I was shown to be similar …

The Coyote As A Game Animal, Edward L. Kozicky

Great Plains Wildlife Damage Control Workshop Proceedings

Coyote hunting is a very special challenge. Even though coyotes may be abundant in an area, that doesn't mean that they're easy to bag with a rifle. However, I happen to enjoy coyote calling to the point where the shooting is almost anti-climax. Others like to hunt coyotes with either sight or trail hounds, to pursue coyotes with all-terrain vehicles, and to spot coyotes while driving through the country.

Bats, Biology, And Control, Stephen P. Kincaid

Great Plains Wildlife Damage Control Workshop Proceedings

Although bats are not commonly thought of as major members of the animal kingdom, they are one of the most numerous of land vertebrates. Bats are thought to have originated in the Old Wordl Tropics and are now almost world-wide in distribution. Bats make up the order Chiroptera, and they are closely related to the hedgehog, shrew and mole.

Snake Control, Steve Thompson

Great Plains Wildlife Damage Control Workshop Proceedings

Whether wild animals are benificial or injurious depends on the time and the place. It seems that no one likes to have venomous or even harmless snakes in his corral, in his yard, or even on his doorstep; but every spring and fall many people are confronted with this situation. Many requests are recieved each year on how to rid an area of these unwanted reptiles.

Commensal Rodent Damage Control, Robert L. Carlton

Great Plains Wildlife Damage Control Workshop Proceedings

Commensal rats and mice are among the only animals about which no good can be said. Each year rats and mice are estimated to cost the American public over $1 billion. This loss is due to contamination of food stuff, structural damage, etc. To give an idea how these rodents can effect the economic picture, assume a rat will eat 25 pounds of chicken feed per year and foul another 25 pounds to such extent it cannot be used as feed (some estimates are as much as ten times greater). The house mouse will consume about 5 pounds per year. …

Wildlife Damage Control Workshop Summary, Philip S. Gipson

Great Plains Wildlife Damage Control Workshop Proceedings

The second Wildlife Damage Control Workshop was a success. Damage control authorities and conservationists shared knowledge and philosophies regarding control objectives, technology and laws. This workshop differed from the first Damage Control Workshop (Henderson 1973) by treating a variety of wildlife damage including problems with nuisance birds and commensal rodents to feral animals, coyotes, and cougars. The first workshop focused on damage caused by coyotes.

How To Handle Problem Skunks, F. Robert Henderson

Great Plains Wildlife Damage Control Workshop Proceedings

There are two species of skunks in Kansas. The striped skunk is about the size of a large house cat, generally black in color with two white stripes running from the base of the skull to the large bushy tail. Solid black indivduals are known to occur, but only rarely. The spotted skunk is a smaller mammal about the size of a half-grown house cat. The spotted skunk is a more active, agile animal and a good tree climber.

Control Of Wild Animals And Public Opinion, Charles H. Callison

Great Plains Wildlife Damage Control Workshop Proceedings

In 1957 the noted ornithologist Robert Cushman Murphy and other landowners on Long Island went to court in an effort to enjoin the U.S. Department of Agriculture from the aerial spraying of DDT to "eradicate" the gypsy moth. This event was years before Rachel Carson wrote Silent Spring. It may have been the first of the modern environmental law suits, although no one called it that. Certainly it was a forerunner of the modern environmental law organizations, because about ten years later the Environmental Defense Fund, was born, interestingly, in Dr. Murphy's neighborhood on Long Island. EDF's first great task …

4-H And Youth Related Programs, Major L. Boddicker

Great Plains Wildlife Damage Control Workshop Proceedings

The value of a youth oriented wildlife management program is obvious. Youth is an audience with an open mind, often not committed to old errors. With a proper and intensive education program, a strong future impact can be made on the acceptance and success of animal damage control programs. Programs of quality can change a youth's outlook on problem wildlife from one of apathy or intolerance to one of positive management and high damage tolerance.

Welcome, Robert A. Bohannon

Great Plains Wildlife Damage Control Workshop Proceedings

The Workshop which was held two years ago was a success. According to registration records this year, people from all of the Great Plains states are in attendance and 92 persons are registered. We are especially pleased to welcome C.F. Barrett, Supervisor of Animal Pest Control of the Alberta Department of Agriculture who travelled the longest distance to attend.

Tree Squirrel Damage Control, Robert L. Carlton

Great Plains Wildlife Damage Control Workshop Proceedings

Unlike some wildlife species, tree squirrels are treated as game animals in every state where found. Thus, there are often restructions on times when tree squirrels may be controlled. In areas of high human population, there may be restrictions on ways in which squirrels may be controlled. Finally, because of the human affection for squirrels, there may be places where effective control is almost impossible.

Feral Mammal Damage And Control, Philip S. Gipson

Great Plains Wildlife Damage Control Workshop Proceedings

Feral populations of five domestic mammals, dogs (Canis familiaris), house cats (Felis catus), hogs (Sus scrofa), burros (Equus asinus) and horses (Equis caballus), presently occur in North America. At times these animals cause problems, damaging crops or livestock, or competing with livestock and native wildlife for food and living space. Free-living bands of a sixth species, cattle (Bos taurus), formerly occurred in the Southwest. Feral mammals are adaptable, and they have become a permanent part of the fauna in many states. Researchers generally ignored feral mammals in the past, although numerous reports have been published in the past 10 years. …

Ultraviolet Radiation Effects On Rotifers, Syed Asim Hussain

Masters Theses & Specialist Projects

The purpose of this investigation was to study ultraviolet radiation effects on rotifers. The rotifer studied was Philodina acuticornis odiosa Milne. Isolation cultures were used to grow the rotifers individually in separate U-plate depressions. The source of ultraviolet radiation consisted of four mercury germicidal lamps used in combination to deliver a uniform flux of 315 uW/cm² over the sample. Five groups of rotifers, one control and four experimental groups of 96 each, were used. The rotifers used were 2-10 hours of age at the beginning of the experiment. The experimental groups were exposed to uv radiation for 3 minutes, …

The Prairie Naturalist Vol. 7, No.4. December 1975

The Prairie Naturalist

COMPARISON OF FLOWERING RECORDS FROM KANSAS AND NORTH DAKOTA ▪ O. A. Stevens

REPAIRED BONE BREAK IN A HOUSE SPARROW ▪ C. L. Cink and T. K. Broschat

A LARGE RACOON LITTER ▪ E. K. Fritzell and J. W. Matthews

CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA –1975 ▪ R. N. Randall

BOOK REVIEW

Autumn Hawk Migrations ▪ P. B. Hofslund

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

Masters Theses

No abstract provided.