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An Investigation Of The Host Specificity Of The Brown-Headed Cowbird, Brian D. Peer

Masters Theses

We attempted to determine the factors associated with the lack of parasitism of the Common Grackle (Quiscalus quiscula) by the Brown-headed Cowbird (Molothrus ater). We investigated the breeding phenology of the two species, the responses of colonial- and noncolonial-nesting grackles to female cowbird models, the frequency of artificial egg rejection by grackles, incubation success of cowbird eggs transferred into grackle nests, and the survival rates of cowbirds cross-fostered into grackle nests.

By the time cowbirds began egg-laying at our study sites, 88.5 % of all grackle nests were beyond the point of successful parasitism. Grackles responded …

The Relationship Between Lifespan And Reproduction In The Giant Waterbug (Belostoma Flumineum), Wendy Nixdorf

Masters Theses

The evolutionary significance of senescence and death is poorly understood. Life history theory suggests that the allocation of energy to growth or reproduction is necessarily associated with a decrease in energy available for maintenance of the soma. This study attempted to determine if an investment in reproduction would decrease longevity in the giant waterbug (Belostoma flumineum). Male and female waterbugs were collected from the field as last instar stage nymphs and maintained under controlled laboratory conditions. Individuals were randomly assigned to mating effort treatments, (virgins or breeders with breeding efforts ranging from 1 to >5 times). Following breeding, …

Synthesis And Characterization Of Transition Metal Polypyridyl Complexes With A Novel 1,10-Phenanthropteridinedione Ligand, Huakai Huang

Masters Theses

A new alloxazine ligand (1; "Pptd"), produced by the condensation of 1,10-phenanthroline-5,6-dione with 5,6-diamino-1,3-dimethyluracil, and several transition metal complexes containing this ligand, have been synthesized. The Pptd ligands attach to Ru(II), Co(II), or Re(I) metal centers through the phenanthroline linkage to form stable polypyridyl complexes. The spectral and the electrochemical characterization of Pptd complexes of Ru(II), Co(II), and Re(I) is presented.

Pptd is capable of being reduced (across the pyrazine nitrogens) by two H-atoms. When coordinated to Ru(II), Pptd forms stable complexes which retain the robust characteristics and electrochemical activity of other Ru(II) polypyridyl species. In addition, Ru(II) complexes of …

Breeding Systems In Spiranthes Magnicamporum Sheviak, Christopher D. Loyet

Masters Theses

A study of the ecology, breeding systems, and pollinators of Spiranthes magnicamporum Sheviak was undertaken in fall 1992. An initial survey of three glacial drift hill prairies revealed sexual activity in this species via removed pollinia. Two hill prairie populations were used for pollination study. In each population, five individuals were randomly selected and crossed using autogamic, geitonogamic, and xenogamic methods. In addition, ten individuals were fitted with pollinator-exclusion bags. After capsule formation, all plants were harvested. They were examined in the lab for general morphology, the presence or absence of embryo formation, and the prescence of sexual or asexual …

Investigation Of The Correlation Between The Tech Prep Initiative And The Restructuring Of Curriculum In Selected Illinois High Schools, Sandra K. Ward

Masters Theses

The purpose of this study was to investigate the correlation between the Illinois Tech Prep Initiative and the restructuring of high school curriculum in Illinois. Tech Prep is a structured sequential program which emphasizes continuity in learning, integration of academics and vocational studies with technology, context-based teaching, and completion of the program with an associate degree.

This study examined the scope and degree which Tech Prep has influenced school districts to create new applied courses, implement new applied methods of teaching, and institute a new focus on technology. A questionnaire was mailed to principals of randomly selected high schools in …

Locus Of Control And Student Leaders: Perceptions Of Leadership Traits, Maggie Sullivan

Masters Theses

Leadership is a multi-faceted phenomena that has been the object of studies throughout the 20th century. Locus of Control has been a focal point for scientific research over the past thirty years. This study examines locus of control among college student leaders. The purpose of the study was to determine if leaders with different loci of control identify different traits as important to leadership. Three hundred surveys were distributed to executive officers of student organizations at Eastern Illinois University. One-hundred thirty-five surveys were returned for a response rate of 45 percent. Results indicated that locus of control did not affect …

Ecology Of The State Endangered Yellow Mud Turtle, Kinosternon Flavescens In Henry Co., Illinois, Michael W. Tuma

Masters Theses

Illinois populations of the state endangered yellow mud turtle (Kinosternon flavescens) persist in scattered locations on sand prairies. The largest population occurs on a remnant sand prairie of the former Green River Marsh in Henry Co. A study was conducted during 1992 to determine important criteria for preserve design. These criteria included extent of turtle movements within the site and habitat use. Turtles were captured by aquatic hoop traps, drift fence, and by hand from May 11 to August 31. A total of 16 adults, four juveniles, and eight hatchlings were captured. Population size was estimated at 44.80 adults using …

Biotic, Abiotic, And Behavioral Patterns Associated With The Nocturnal Movements Of Shrews, Patrick T. Sullivan

Masters Theses

Thirteen trails left by shrews coated with fluorescent powder were examined for microhabitat documentation. Thirteen data parameters were collected from each trail, two of which differed significantly between Blarina brevicauda and Sorex longirostris. The small soricid Sorex longirostris was captured in areas with higher grass content, and lower wooded content, than the larger Blarina brevicauda. The difference in microhabitat use may be a key mechanism in reducing competition between these two species.

The Effects Of Nest-Box Visibility And Proximity On The Frequency Of Brood Parasitism In Wood Ducks, Roger W. Jansen

Masters Theses

I studied the effects of nest box visibility and clustering on the rate of intraspecific brood parasitism (IBP) in Wood Ducks (Aix sponsa) at Lake Shelbyville Fish and Wildlife Area in Moultrie County, IL from 2 March 1992 to 22 June 1992. Sixty-eight percent of the nest boxes sampled were used and 33% of the nests were destroyed by predators. Mean clutch sizes of unparasitized (x = 9.2) and parasitized (x = 15.2) nests were significantly different. The parasitism rate in Wood Duck nests was 54%. More visible boxes had a tendency to be parasitized at a higher rate than …

Growth And Survival Of Larval Fishes: The Role Of Zooplankton Abundance And Competition, Michael T. Welker

Masters Theses

Interactions among larval gizzard shad, bluegill and zooplankton prey were examined via a controlled mesocosm experiment and field sampling in Lake Shelbyville, Illinois. In the mesocosm experiment gizzard shad growth and survival were negatively correlated with shad density and positively correlated with macrozooplankton prey. Bluegill growth was also positively correlated with prey availability, but survival was uniformly high despite differences in zooplankton abundance and fish density. Declines in macrozooplankton and copepod biomass were related to fish density. In Lake Shelbyville limnetic overlap of larval gizzard shad and bluegill was limited to a three week period, with the interval of greatest …

Daily Eastern News: December 08, 1992, Eastern Illinois University

December

No abstract provided.

Daily Eastern News: December 04, 1992, Eastern Illinois University

December

No abstract provided.

Daily Eastern News: November 16, 1992, Eastern Illinois University

November

No abstract provided.

11/05/1992 - Publishing Scholars Honored , University Marketing And Communications

1992

No abstract provided.

Grand Prairie Friends Notes (November 1992), Grand Prairie Friends

Newsletters

No abstract provided.

10/30/1992 - Ragusa Inducted Into Phi Alpha Eta, University Marketing And Communications

1992

No abstract provided.

Daily Eastern News: October 20, 1992, Eastern Illinois University

October

No abstract provided.

Daily Eastern News: October 08, 1992, Eastern Illinois University

October

No abstract provided.

Daily Eastern News: October 02, 1992, Eastern Illinois University

October

No abstract provided.

Fall 1992, Peter F. Essig, Walt Howard, Ann Moutray, Ben Hausmann, Joanna Wolaver, Jill S. Pilon, Stacey Krueger, Jean K. Gray, Jennifer Moro, Michelle R. Hoke, Jarrod T. Shields, Randy Liss, Nancy James, Sandra Beauchamp, Thomas D. Schnarre, Tom Mcgrath, Robert M. Reuther, Larry Irvin, Stephen P. Carmody, Jacqueline Hall

The Vehicle

No abstract provided.

Daily Eastern News: September 30, 1992, Eastern Illinois University

September

No abstract provided.

September 29, 1992, Faculty Senate

Minutes

No abstract provided.

Daily Eastern News: September 29, 1992, Eastern Illinois University

September

No abstract provided.

Daily Eastern News: September 28, 1992, Eastern Illinois University

September

No abstract provided.

09/25/1992 - Coutant , University Marketing And Communications

1992

No abstract provided.

Daily Eastern News: September 08, 1992, Eastern Illinois University

September

No abstract provided.

07/28/1992 - Grant To Fund Purchase Of Chemistry Equipment, University Marketing And Communications

1992

No abstract provided.

Daily Eastern News: July 27, 1992, Eastern Illinois University

July

No abstract provided.

04/13/1992 - Nollen To Discuss Parasitic Diseases, University Marketing And Communications

1992

No abstract provided.

04/02/1992 - Distinguished Professor To Visit Eiu, University Marketing And Communications

1992

No abstract provided.