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Articles 1291 - 1320 of 1550
Full-Text Articles in Life Sciences
Parasites Of Channel Catfish In Illinois Hatcheries, Charles Dale Meryman
Parasites Of Channel Catfish In Illinois Hatcheries, Charles Dale Meryman
Masters Theses
Ninety channel catfish (Ictalurus punctatus) were trapped during September 1973 through April 1974 at three hatcheries located at Worden, Centralia, and Kinmundy, Illinois. All were examined for parasites and 87 were parasitized. The trematodes Azygia angusticauda and Neascus sp. were found in the gastrointestinal system and Cleidodiscus floridanus and Dactylogyrus sp. were attached to the gills. Five cestode genera, including Bothriocephalus sp., Corallobothrium giganteum, Eubothrium sp., Haplobothrium sp., and Proteocephalus ambloplitis were present. Rhabdochona sp. was the only nematode found. Protozoans; Costia sp., Myxobolus sp., Scyphidia macropodia and Trichodina discoidea and one kind of glochidium were observed. …
Pesticide Residues In The Illinois Wild Turkey, John M. Bridges
Pesticide Residues In The Illinois Wild Turkey, John M. Bridges
Masters Theses
Adipose tissue from 55 turkeys, killed during the 1974 hunting season in southern Illinois, was grouped by age and location of the birds, and the pesticide concentrations in them were determined by gas/liquid chromatography. Twelve different pesticides were identified in the samples with only four, total DDT, heptachlor epoxide, toxaphene, and linuron, being present in all samples. Concentrations ranged from 0.02 ppm to 0.88 ppm.
The Status Of Beaver In East Central Illinois, Kenneth Edward Snearley
The Status Of Beaver In East Central Illinois, Kenneth Edward Snearley
Masters Theses
Parts of three major streams in east central Illinois: the Embarrass, the Kaskaskia and Okaw Rivers were cruised during the fall of 1973 and the summer and fall of 1974. Beaver (Castor canadensis) sign were located and recorded. A qualitative analysis of the woody vegetation on the Kaskaskia and Okaw Rivers was undertaken.
Two activity sites were located on the Embarrass. Three fresh and three old cutting sites were located on the Kaskaskia in 1973; in 1974, five fresh sites were found. The Okaw had six fresh and six old cutting sites in 1973, but in 1974, only …
Aquatic Plant Communities Of Vermilion County, Illinois, John A. Wiedman
Aquatic Plant Communities Of Vermilion County, Illinois, John A. Wiedman
Masters Theses
No abstract provided.
Homing Studies Of Bank Swallows In Eastern Illinois, Jennifer Eileen Hagerstrom
Homing Studies Of Bank Swallows In Eastern Illinois, Jennifer Eileen Hagerstrom
Masters Theses
A series of homing experiments using 39 color-marked Bank Swallows (Riparia riparia) were carried out in eastern Illinois during the summer of 1975. The swallow colony was located four km east-northeast of Charleston, Illinois at the Charleston Stone Quarry. Eight release sites were located in the four compass directions from the home colony at distances of 14.4 to 32.3 km away.
The colony was approached before dawn and swallows were captured using tube traps. Birds were color-marked, banded, and taken in individual bags to the release site by automobile. Cloud cover, wind velocity, wind direction, and orientation behavior …
The Histology Of The Pineal Gland In Odocoileus Virginianus, Terry Michael De Villiers
The Histology Of The Pineal Gland In Odocoileus Virginianus, Terry Michael De Villiers
Masters Theses
A total of 26 pineal glands from the white-tailed deer were histologically examined. Five different stains were utilized to determine various cell types present in pineal tissue. Connective tissue septa divide the pineal gland into incompletely separated lobules which are supplied by a very extensive vascular system. The pinealocyte is the most numerous cell in the gland and is most easily recognized by a prominent nucleus approximately 6-8 microns in diameter. The pinealocyte cytoplasm contains many minute granules. A distinct difference was noted in the histology of the oldest age deer pineal (age 7 years) when globular granules were observed …
Method Of Karyotype Determination For Cercaria: Application To Family Azygiidae (Trematoda), James Everett Mick
Method Of Karyotype Determination For Cercaria: Application To Family Azygiidae (Trematoda), James Everett Mick
Masters Theses
The development of a method for karyotype determination of cercaria provides a basis for comparative karyotype analysis between cercaria and adult, possibly eliminating the need for infection experiments for positive identification of cercaria. Snails (Goniobasis livescens) were collected from below the spillway of Lake Charleston, on the Embarras River, near Charleston, Illinois. Of a total of 196 snails collected 42 (21.5%) were found to be infected with undetermined furcocyticercous cercariae. Infected snails were detected through isolation procedure. From the infected snails, emerged and non-emerged forms of the cercaria were recovered. Whole mounts of the cercaria were made and …
The Growth Of The Red-Ear Turtle Pseudemys Scripta Elegans In A Thermal Lake In Southwestern Illinois, Diana Avalos
The Growth Of The Red-Ear Turtle Pseudemys Scripta Elegans In A Thermal Lake In Southwestern Illinois, Diana Avalos
Masters Theses
No abstract provided.
An Analysis Of Sugars In Vein Tissue And Free Mesophyll Cells Of Squash Leaves, Charles Wayne Kennedy
An Analysis Of Sugars In Vein Tissue And Free Mesophyll Cells Of Squash Leaves, Charles Wayne Kennedy
Masters Theses
No abstract provided.
A Photomicrographic Guide To The Saprolegniaceae Of Illinois, Ronald L. Butler
A Photomicrographic Guide To The Saprolegniaceae Of Illinois, Ronald L. Butler
Masters Theses
There is a paucity of information concerning the occurrence and distribution of the Saprolegniaceae of Illinois. These fungi, commonly called "water molds", are of particular interest as many are potential parasites of fish, crustaceans, and other aquatic plant and animal life. It is of considerable interest to students of the fungi and of practical value to the fisheries biologists and environmentalists to have available a means of identification for these organisms.
This paper provides a descriptive and photomicrographic account of the Saprolegniaceae of Illinois. Included herein are dichotomous keys to the genera of this family as well as generic descriptions …
Vegetation Study Of A Terrace Forest In Clark County, Illinois, Randy Warren Nyboer
Vegetation Study Of A Terrace Forest In Clark County, Illinois, Randy Warren Nyboer
Masters Theses
No abstract provided.
Breeding Bird Study On The Douglas-Hart Nature Preserve, An East-Central Illinois Modified Oldfield, Charles F. Zimmer
Breeding Bird Study On The Douglas-Hart Nature Preserve, An East-Central Illinois Modified Oldfield, Charles F. Zimmer
Masters Theses
No abstract provided.
Aspects Of Habitat Selection In Grassland Birds, Keith Graham Harrison
Aspects Of Habitat Selection In Grassland Birds, Keith Graham Harrison
Masters Theses
No abstract provided.
Effect Of "Stressors" On Corticosteroid-Binding Globulin Activity In The Rat During Pregnancy, Muhammad Nasir Hussain
Effect Of "Stressors" On Corticosteroid-Binding Globulin Activity In The Rat During Pregnancy, Muhammad Nasir Hussain
Masters Theses
No abstract provided.
The Effects Of Dilute Copper Sulphate Concentrations On Selected Aquatic Invertebrates, Michael D. Campbell
The Effects Of Dilute Copper Sulphate Concentrations On Selected Aquatic Invertebrates, Michael D. Campbell
Masters Theses
No abstract provided.
Evidence Of Eutrophication In Wall Lake Barry County, Michigan, John J. Meany
Evidence Of Eutrophication In Wall Lake Barry County, Michigan, John J. Meany
Masters Theses
No abstract provided.
A Spectrographic Method For Determination Of Lead In Human Blood Utilizing The Far Ultraviolet Wavelength Region, Marianne Oriel Lull
A Spectrographic Method For Determination Of Lead In Human Blood Utilizing The Far Ultraviolet Wavelength Region, Marianne Oriel Lull
Masters Theses
No abstract provided.
Studies With An In Vitro Protein Synthesizing System Derived From Acetobacter Aceti Var. Liquefaciens, Joyce I. Cialdella
Studies With An In Vitro Protein Synthesizing System Derived From Acetobacter Aceti Var. Liquefaciens, Joyce I. Cialdella
Masters Theses
No abstract provided.
Studies On The Membrane Associated L-Malate Dehydrogenase-Oxidase Complex Of Micrococcus Lysodeikticus, Jerry James Johnson
Studies On The Membrane Associated L-Malate Dehydrogenase-Oxidase Complex Of Micrococcus Lysodeikticus, Jerry James Johnson
Masters Theses
No abstract provided.
The Clinical Applications Of Reverse Transcriptase For The Early Detection Of Cancer, Bryan Leslie Kiehl
The Clinical Applications Of Reverse Transcriptase For The Early Detection Of Cancer, Bryan Leslie Kiehl
Masters Theses
No abstract provided.
The Coastal Plain Floristic Element In Michigan, Gary J. Pierce
The Coastal Plain Floristic Element In Michigan, Gary J. Pierce
Masters Theses
No abstract provided.
A Study Of The Influence Of Serum Thyroxine On The Annual Reproductive Cycle Of The Adult Female Mallard, Deward L. Walker
A Study Of The Influence Of Serum Thyroxine On The Annual Reproductive Cycle Of The Adult Female Mallard, Deward L. Walker
Masters Theses
No abstract provided.
Two-Dimensional Gel Electrophoresis Of Ribosomal Proteins From Thermophilic And Mesophilic Bacteria, Walter C. Pickett
Two-Dimensional Gel Electrophoresis Of Ribosomal Proteins From Thermophilic And Mesophilic Bacteria, Walter C. Pickett
Masters Theses
No abstract provided.
Defensive Behavior Of The Hognose Snake (Heterodon Platyrhinos), Brenda S. Hemken
Defensive Behavior Of The Hognose Snake (Heterodon Platyrhinos), Brenda S. Hemken
Masters Theses
Fourteen out of sixteen Heterodon platyrhinos eggs were hatched in late August, 1973. The immature snakes were manually stimulated and the resultant bluffing and death-feigning behaviors were observed. All of the experimental snakes bluffed, but only three out of ten feigned death. The major components of the bluffing behavior are spreading the neck, hissing, and striking. Death-feigning is preceded by contortions and shows variations in the positions of the mouth and tongue. The newly-hatched snakes exhibited both bluffing and death-feigning, indicating that the behaviors are innate.
Megasporogenesis And Early Embryogeny Of Sanguinaria Canadensis L. (Bloodroot), Stephen R. Foor
Megasporogenesis And Early Embryogeny Of Sanguinaria Canadensis L. (Bloodroot), Stephen R. Foor
Masters Theses
No abstract provided.
The Morphology And Cytology Of Preussia Vulgare (Corda) Cain, Marcial Antonio Pastor-Corrales
The Morphology And Cytology Of Preussia Vulgare (Corda) Cain, Marcial Antonio Pastor-Corrales
Masters Theses
No abstract provided.
The Forests Of Coles County, Illinois, David R. Sampson
The Forests Of Coles County, Illinois, David R. Sampson
Masters Theses
The purpose of this investigation has been to organize and compile a relevant body of information concerning the forested land within Coles County. The methods employed in conducting this study consisted of library research, field work, interviews, and the use of a questionnaire. The questionnaire was designed to determine how the forest landowners were utilizing their forests. A random sample of the forest landowners of each township within Coles County was conducted. In addition to the questionnaire, which was the primary source of detailed information relating to forest utilization, there were interviews with the county farm cooperative extension agent, the …
Status Of The Wild Turkey In Southwestern Illinois In 1970, Robert Merle Cottingham
Status Of The Wild Turkey In Southwestern Illinois In 1970, Robert Merle Cottingham
Masters Theses
Wild-trapped turkey were first released in southwestern Illinois in 1959. This, and subsequent releases have established a huntable population of wild turkey in the area. Until 1970, no evaluation of the status of the bird had been made. This study was conducted in June, July, August and September, 1970, to determine the distribution, productivity and relative abundance of the wild turkey in Alexander, Jackson, Union and Williamson Counties and to make recommendations for future management of the population. Information was supplied by rural mail carriers, Illinois Department of Conservation and U. S. Forest Service personnel and local residents together with …
An Introduction To The Ethology Of Citellus Variegatus, John W. Bell
An Introduction To The Ethology Of Citellus Variegatus, John W. Bell
Masters Theses
The above ground activity of the rock squirrel Citellus variegatus between November 6, 1972 and May 1, 1973, is described. This is a non-colonial species. Recognition was established between siblings by a nose to nose contact. In foraging they utilize almost any edible material available and during this time of year foraging is most intense between 11:00 a.m. and 4:00 p.m. Vocalization was limited to alarm calls, which brought the other squirrels to the top of the rocks to become alert, and squeals. Hibernation varied in length depending in part on the elevation and in some did not occur at …
Helminth Parasites Of Illinois Wild Turkeys, James W. Jackson
Helminth Parasites Of Illinois Wild Turkeys, James W. Jackson
Masters Theses
Viscera from 69 wild turkeys (Meleagris gallopavo silvestris) collected from Jackson, Union and Alexander counties, Illinois, were examined for helminth and coccidian parasites. A total of eight species of parasites was found, all in the alimentary tract. The coccidian parasite Eimeria sp. was found in 9.6% of birds examined. The nematodes Heterakis gallinarum, Ascaridia galli and Ascaridia dissimilis were found in 13.2%, 27.9% and 48.5% respectively of all birds examined. Three species of cestodes, Raillietina williamsi, Metroliasthes lucida and Hymenolepis sp., were recovered from 41.1%, 27.9% and 1.4% respectively of birds examined. One species of trematode, …