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Masters Theses

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Articles 1201 - 1230 of 1550

Full-Text Articles in Life Sciences

Capillaria Sp. From Cryptotis Parva, Joseph N'Dong Jan 1978

Capillaria Sp. From Cryptotis Parva, Joseph N'Dong

Masters Theses

Twenty-nine Cryptotis parva were trapped at Lincoln Log Cabin State Park in Coles County Illinois between 22 December 1976 and 31 January 1978. Trapped specimens were necropsied and examined for the presence of helminth parasites. Nematode infections were found to be present in eight (27.2%) of the shrews collected with five (17.2%) of the males and three (10.3%) of the females infected. Three adult female nematodes were recovered from the small intestines of the host specimens, described and identified as the genus Capillaria. No male Capillaria were obtained and therefore species identification was impossible. However, the general appearance of …


Utilization Of Heat Sensitivity In Crotalidae, James Cordrey Miller Jan 1978

Utilization Of Heat Sensitivity In Crotalidae, James Cordrey Miller

Masters Theses

Specimens of five genera of snakes (Crotalus, Agkistrodon, Bitis, Epicrates, and Elaphe) were tested for use of thermal cues in food selection. Results indicate that pit vipers (Crotalus and Agkistrodon) and boas (Epicrates) utilize thermal radiation in selection of food. It was also indicated that Crotalus (rattlesnakes) do not invariably show a reflexive strike before food is investigated or ingested.


A Study Of Symbiosis Involving The Fish-Eating Bat (Myotis Vivesi), The Least Petrel (Halocyptera Microsoma), The Black Petrel (Oceanodroma Melania), And The Lizard (Cnemidophorus Tigris), Joel King Jan 1978

A Study Of Symbiosis Involving The Fish-Eating Bat (Myotis Vivesi), The Least Petrel (Halocyptera Microsoma), The Black Petrel (Oceanodroma Melania), And The Lizard (Cnemidophorus Tigris), Joel King

Masters Theses

A field study was conducted on Partida Island in the Gulf of Mexico on the dates May 26 through July 26, 1977, inclusive.

Field observations were made of the lizard (Cnemidophorus tigris) preying on eggs and hatchlings of the least petrel (Halocyptena microsoma), and the black petrel (Oceanodroma melania). The petrels roost among rock slides with the fish-eating bat (Myotis vivesi).

In 24 trials of experimental boxes with lizards, bats, and petrels as subjects, 16 trials resulted in aggression of bats to lizards.

A symbiosis is postulated between bats and petrels.


The Effects Of Sulphur Dioxide On Selected Hepatics, Steven L. Gatchel Jan 1978

The Effects Of Sulphur Dioxide On Selected Hepatics, Steven L. Gatchel

Masters Theses

Extensive studies have been reported on the air pollutant sulphur dioxide (SO2), and its effects on vascular and nonvascular plants. It has been shown to interrupt normal physiology, metabolism, reproduction, and alter the plant’s morphology.

Of the cryptogams, lichens have been extensively used as biological indicators of air pollution. More recently, bryophytes have been shown to be as sensitive to contaminates as lichens, and may exhibit responses to the pollutant similar to those of vascular and nonvascular plants. The threshold sensitivity of these cryptogams is about 0.5 ppm over a 12 hour period. However no study to date …


The Cirsium Altissimum - Discolor Complex In Illinois, Dennis R. Bischoff Jan 1978

The Cirsium Altissimum - Discolor Complex In Illinois, Dennis R. Bischoff

Masters Theses

Cirsium altissimum, C. discolor and suspected hybrids used in this study were collected during September 1977 from three locations in east central Illinois. All were combined for subsequent taking of data because the study dealt with incidence of hybridization and morphological discriminators rather than degrees and directions of introgression. Ten possible discriminators were chosen by examination of herbarium specimens of parental plants: I, Involucre width; II, Involucre height; III, Pubescence of upper leaf surface; IV, Angle of departure of main veins from the midrib; V, Number of spines per cm along the margin; VI, Length of indurate portion of …


Epizoic Protozoa Of Planktonic Copepoda And Cladocera From A Small Eutrophic Lake, And Their Possible Use As Indicators Of Organic Water Pollution, Michael Stevens Henebry Jan 1978

Epizoic Protozoa Of Planktonic Copepoda And Cladocera From A Small Eutrophic Lake, And Their Possible Use As Indicators Of Organic Water Pollution, Michael Stevens Henebry

Masters Theses

The epizoic protozoa of planktonic copepoda and cladocera from a eutrophic lake (Ashmore Lake, Coles County, Illinois) were studied over a 13-week period in the summer and fall of 1975. All organisms were collected with a 125 micron mesh plankton net. Epizoans (all peritrichs and suctorians) were hosted by three of four species of copepods and four of the ten species of cladocerans. The percentage of total organisms hosting epizoans varied significantly (0.001 alpha level) by month, but averaged 11.6 percent. This high occurrence of epizoans was thought to be related to the highly-eutrophic conditions existing in the lake. If …


The Effect Of Metabolites, Which Accumulate During Phenylketonuria, On The Activity Of Stearoyl-Coenzyme A Desaturase, Walter Scott Dec 1977

The Effect Of Metabolites, Which Accumulate During Phenylketonuria, On The Activity Of Stearoyl-Coenzyme A Desaturase, Walter Scott

Masters Theses

No abstract provided.


Effects Of Indomethacin On Gastric Secretion And Duodenal Ulcer Formation In Bile Duct-Ligated Rats, Diane M. Przewozniak Dec 1977

Effects Of Indomethacin On Gastric Secretion And Duodenal Ulcer Formation In Bile Duct-Ligated Rats, Diane M. Przewozniak

Masters Theses

No abstract provided.


Effects Of Anticonvulsant Drugs On The Morphological And Neurophysiological Aspects Of An Experimental Model Of Epilepsy, Linda D. Compton Dec 1977

Effects Of Anticonvulsant Drugs On The Morphological And Neurophysiological Aspects Of An Experimental Model Of Epilepsy, Linda D. Compton

Masters Theses

No abstract provided.


Bird Populations In A Grassland-Thicket In Relation To Plant Succession And Adjacent Land Use, Steven L. Harbron Aug 1977

Bird Populations In A Grassland-Thicket In Relation To Plant Succession And Adjacent Land Use, Steven L. Harbron

Masters Theses

No abstract provided.


Effect Of Cold Exposure On Serum Levels Of Corticosteroid-Binding Globulin In Male And Virgin Female Rats, Erik R. Larsen Aug 1977

Effect Of Cold Exposure On Serum Levels Of Corticosteroid-Binding Globulin In Male And Virgin Female Rats, Erik R. Larsen

Masters Theses

No abstract provided.


Comparison Of Protein Kinase Activity In Tissue Extracts Of The Diabetic And Nondiabetic Chinese Hamster, Michael Andrew Dombos Aug 1977

Comparison Of Protein Kinase Activity In Tissue Extracts Of The Diabetic And Nondiabetic Chinese Hamster, Michael Andrew Dombos

Masters Theses

No abstract provided.


Gap Formation: A Reproductive Isolating Mechanism For Parus Atricapillus And P. Carolinensis In Northern Indiana, Peter Gorham Merritt Aug 1977

Gap Formation: A Reproductive Isolating Mechanism For Parus Atricapillus And P. Carolinensis In Northern Indiana, Peter Gorham Merritt

Masters Theses

No abstract provided.


The Half-Life Of Bacterial Messenger Rna, John B. Madison Aug 1977

The Half-Life Of Bacterial Messenger Rna, John B. Madison

Masters Theses

No abstract provided.


The Effects Of Gonadal Hormone Manipulations On Aggressive Target-Biting In Mice, George C. Wagner Aug 1977

The Effects Of Gonadal Hormone Manipulations On Aggressive Target-Biting In Mice, George C. Wagner

Masters Theses

No abstract provided.


A Histological And Immunological Study Of The Forty-Eight Hour Normal Lymphocyte Transfer Reaction, Charles W. Ford Aug 1977

A Histological And Immunological Study Of The Forty-Eight Hour Normal Lymphocyte Transfer Reaction, Charles W. Ford

Masters Theses

No abstract provided.


Movements Of The Gastropod, Campeloma Decisum, In An Artificial Stream, John Badgerow Aug 1977

Movements Of The Gastropod, Campeloma Decisum, In An Artificial Stream, John Badgerow

Masters Theses

No abstract provided.


A Bioassay Study Of Portage Creek Using Tetrahymena Pyriformis As An Indicator Organism, George T. Mimidis Apr 1977

A Bioassay Study Of Portage Creek Using Tetrahymena Pyriformis As An Indicator Organism, George T. Mimidis

Masters Theses

No abstract provided.


Foliage Preference And Habitat Utilization By Migrating Warblers, John Calvin Stiner Apr 1977

Foliage Preference And Habitat Utilization By Migrating Warblers, John Calvin Stiner

Masters Theses

No abstract provided.


Behavioral Aspects Of Southwest Michigan Opilionids, Wolfgang C. Schroeter Apr 1977

Behavioral Aspects Of Southwest Michigan Opilionids, Wolfgang C. Schroeter

Masters Theses

Introduction

Opilionids (Arachnida: Opiliones) are arachnids that have such descriptive common names as harvestmen or daddy longlegs. In the summer and early autumn opilionids become a conspicuous component of the invertebrate fauna; however, as common as these animals are, little attention has been paid to their behavior. Most published research on opilionids deals with their taxonomy.

The intraspecific interactions of opilionids is a significant area or ethology that needs careful examination. Intraspecific interactions fall into three categories reproductive, aggressive, and cooperative behaviors. A knowledge of the reproductive behavior of opilionids is essential for a complete picture or the evolution of …


Home Range And Movements Of Fox Squirrels (Scirius Niger) In East Central Illinois, Sheryl L. Dyer Jan 1977

Home Range And Movements Of Fox Squirrels (Scirius Niger) In East Central Illinois, Sheryl L. Dyer

Masters Theses

No abstract provided.


Ecology Of A Mixed Gray And Fox Squirrel Population, Thomas R. St. Peter Jan 1977

Ecology Of A Mixed Gray And Fox Squirrel Population, Thomas R. St. Peter

Masters Theses

No abstract provided.


Studies On The Grooming Behavior And Morphology Of The Freshwater Prawn, Palaemonetes Kadiakensis, Bruce E. Felgenhauer Jan 1977

Studies On The Grooming Behavior And Morphology Of The Freshwater Prawn, Palaemonetes Kadiakensis, Bruce E. Felgenhauer

Masters Theses

No abstract provided.


Blood Parasites Of Squirrels From Coles And Lake Counties In Illinois, Nicholas I. Obiri Jan 1977

Blood Parasites Of Squirrels From Coles And Lake Counties In Illinois, Nicholas I. Obiri

Masters Theses

Hepatozoon and microfilariae are described from the blood of fox and gray squirrels captured in Coles and Lake Counties in Illinois during 1976 and 1977. The hepatozoon species is identified as Hepatozoon griseisciuri on the basis of parasite morphology and hosts. A higher rate of infection (35.7% : 11.1%) was observed in gray squirrels than in fox squirrels and more adults were infected than juveniles. No microfilariae were found in gray squirrels but fox squirrels had a 57.1% infection rate with no difference based on age. The observed microfilariae are similar to that described by Davidson from Maryland gray squirrels …


A Stream Survey Of Riley Creek, Coles County, Illinois, Using Macroinvertebrates As Indicators Of Organic Pollution, Joseph R. Rowe Jan 1977

A Stream Survey Of Riley Creek, Coles County, Illinois, Using Macroinvertebrates As Indicators Of Organic Pollution, Joseph R. Rowe

Masters Theses

A stream survey of Riley Creek in Coles County Illinois, was undertaken to determine ecological trends and the qualitative status of the aquatic community throughout the course of the stream.

The survey encompassed the entire length of Riley Creek from the area of its status as an intermittant waterway to its confluence with Cassel Creek. Sampling periods included the months of April, May, June, July, October and November.

Macroinvertebrate collections were made at six locations along the stream approximately equidistant from each other. The organisms were assigned tolerance levels as designated by the Illinois Environmental Protection Agency.

Physical and chemical …


Cytology Of Chaetomidium Fimeti, David D. Kimmel Jan 1977

Cytology Of Chaetomidium Fimeti, David D. Kimmel

Masters Theses

No abstract provided.


Oil-Bodies Of Selected Leafy Liverworts Of East-Central Illinois, Steven Monroe Martin Jan 1977

Oil-Bodies Of Selected Leafy Liverworts Of East-Central Illinois, Steven Monroe Martin

Masters Theses

Oil-bodies are distinct and varied structures found only in the Hepaticae and with particular frequency in the Jungermanniales. Untill relatively recently the oil-body has been virtually ignored by liverwort morphologists and taxonomists.

This study includes descriptions and photomicrographs of the oil-bodies of 23 species and 14 genera in 9 familes of leafy liverworts of east-central Illinois. Diagnostic characteristics recorded for each species include the number of oil-bodies per cell, size range of the oil-bodies, color, shape, texture and arrangement of the oil-bodies within the cell. It was found that the familes Lepidoziaceae, Calypogeiaceae, Jungermanniaceae, Scapaniaceae, Porellaceae and Frullaniaceae are composed …


Cytological Investigations Of Eremosphaera Viridis De Bary, Richard Allen Valentino Jan 1977

Cytological Investigations Of Eremosphaera Viridis De Bary, Richard Allen Valentino

Masters Theses

Eremosphaera viridis de Bary was studied with light microscope techniques to determine the method of cytokinesis and to explain the ontogeny of the membranous ring separating the mature daughter cells in the intact sporangium.

It is proposed that cytokinesis in this organism is phylogenetically advanced and that the separation of mature daughter cells involves the sequential deposition of two cell walls. The first wall develops centripetally by the addition of membrane subunits. The resulting cleavage furrow is oriented by transverse microtubules found along the cell division plane. The newly formed walls separate the two daughter cells and give rise to …


Saxicolous Bryophytes Of Coles And Clark Counties, Terri M. Simon Jan 1977

Saxicolous Bryophytes Of Coles And Clark Counties, Terri M. Simon

Masters Theses

No abstract provided.


Production And Utilization Of Sunflower Food Plots At Shelbyville Wildlife Management Area, Illinois, Duane T. Dust Jan 1977

Production And Utilization Of Sunflower Food Plots At Shelbyville Wildlife Management Area, Illinois, Duane T. Dust

Masters Theses

Three sunflower (Helianthus annuus) fields from 3.2 ha to 1.0 ha in size, planted on the Shelbyville Wildlife Management Area, Illinois were analyzed for seed production and utilization by birds. Seed in heads and on the ground were sampled and species and numbers of birds in the fields were censused at two week intervals from September, 1976 to February, 1977. Decline in seed availability was most rapid in the smallest field and least rapid in the largest field. Fields and portions of fields adjacent to wooded cover were also utilized more rapidly. American goldfinch (Spinus tristis) …