Thesis (M.S.)--Colorado State University, 1981. / Includes bibliographical references (leaves 41-43). Also available in print.

Thesis (M.S.)--Colorado State University, 1981. / Includes bibliographical references (leaves 41-43). Also available electronically on the Internet.

Thesis (M.S.)--Northern Michigan University, 2006. / Bibliography: leaves 61-67.

Thesis (M.S.)--University of Wisconsin -- La Crosse, 1981. / Includes bibliographical references (leaves 70-75).

This research relates Hg levels in the Common Loon (Gavia immer) to a variety of physical factors. Constructed within the framework of a GIS system, this model analyzes the spatial relationships and the influence of physical land cover factors as a function of distance from the individual loon territories. Thiessan polygons were used to generate the territory for each loon. Buffering of the thiessan polygons was done to establish the boundaries of the individual distance classes and to gather information on the percentage of individual land cover classes within each distance class. Information on precipitation was also gathered. Results from the regression analysis (R2 = 57.3% at the 150m distance class) performed on the variables suggest that the proximity of certain land use types such as cropland, shrub land, and wetlands influence the rates at which Hg is available within an individual territory. Within the 150m and 300m buffers, crop land, shrub land, and wetland exhibited the strongest relationship with the Hg levels in the common loon, with cropland exhibiting a negative relationship suggesting that the proximity of cultivated lands plays a role in decreasing the amount of available Hg in a territory. / Master of Science

Virtually any person exposed to American movies or television has likely heard the call of a common loon (Gavia immer). Its use as a sound prop has become ubiquitous in any scene related to the outdoors or the wilderness, even if the area filmed is in no way related to true loon habitat. The reason behind this is that the common loon and its haunting cries have come to symbolize the great outdoors. The sound of their call is meant to make the audience feel like the scene they are watching is in a remote area, far from the trappings of civilization, and, in our experience, it works. Hollywood has picked up on a sentiment held by many outdoor enthusiasts and is using it successfully. Unfortunately the southern range of the common loon is contracting and concern has been expressed over disturbance to breeding pairs by human activities, such as shoreline development, boating, and water-skiing, as well as possible contamination with lead, mercury, and other pollutants. If this alarming trend continues it may be that Hollywood movies will be the last place where a loon call can be heard in the United States. In the following chapters I will explore various threats to common loon populations. I will start in Chapter 1 with an evaluation of the potential effects of global warming on common loons within the North American breeding range. In Chapter 2 I review the available literature on wildlife disturbance and discuss some of the shortcomings and future research needs. I then go to a finer scale of study in Chapter 3 with a spatial analysis of disturbance factors and the effects on breeding common loons at Lake Umbagog National Wildlife Refuge. From there, in Chapter 4, I proceed to an analysis of specific behavioral responses exhibited by common loons in response to observed and experimentally imposed disturbance events. Finally, in Chapters 5 and 6, I briefly describe two natural disturbance events observed during our research, an immature bald eagle (Haliaeetus leucocephalus) predating a loon nest, and a loon nest defense of an aggressive American mink (Nevison vison).

This dissertation focuses on the interdependency between causality, context and history in selected novels by E.L. Doctorow: The Book of Daniel (1971), Ragtime (1974), Loon Lake (1980), World's Fair (1985) and The Waterworks (1995). Doctorow' s fiction is marked by an apparent paradox: while it underscores fictionalization and sometimes distorts late nineteenth and twentieth century American history, it simultaneously purports to be a valid representation of the past. The novelist's implementation of causality which is a significant component of "the power of freedom", constitutes fiction's ability to convey truth without relying on factuality or "the power of the regime". According to Doctorow, the documented fact is already an interpretation which induces the perception that all documentation is subjective. The author composes fictional contexts that disregard the pretence of reliability in non-fictional texts. Doctorow focuses on how contexts are formed: the contexts are usually defined through the experience of characters who have been exposed to an event or events that were generated by motivations, for example, emotions of fear, racism, conviction, desire and greed, i.e., the catalysts that form history. Each of the novels discussed focuses on various aspects of society and the fate of specific individuals. The Book of Daniel proposes that a human being can only survive physically and spiritually by remaining a social entity. Ragtime focuses on the persistent illusion in history that society is fragmented. The various "faces" of society encountered by the main character in Loon Lake, mirror one another and reflect spiritual poverty. Consequently, Loon Lake demonstrates that the search for personal fulfilment does not require a physical journey, but an inner or spiritual exploration. World's Fair postulates that reality is never exclusively defined by either fortune or misfortune alone. The Waterworks offers perhaps one of the most significant evaluations of history as it perceives that the world in which we live is essentially unknown to us. We have neither the practical means to obtain a total perspective of what occurs in society (especially among politicians and the financially powerful) nor do we have sufficient skills to distinguish what the motivations of individuals' actions really entail. / Thesis (M.A.) Potchefstroom University for Christian Higher Education, 2000.

This dissertation focuses on the interdependency between causality, context and history in selected novels by E.L. Doctorow: The Book of Daniel (1971), Ragtime (1974), Loon Lake (1980), World's Fair (1985) and The Waterworks (1995). Doctorow' s fiction is marked by an apparent paradox: while it underscores fictionalization and sometimes distorts late nineteenth and twentieth century American history, it simultaneously purports to be a valid representation of the past. The novelist's implementation of causality which is a significant component of "the power of freedom", constitutes fiction's ability to convey truth without relying on factuality or "the power of the regime". According to Doctorow, the documented fact is already an interpretation which induces the perception that all documentation is subjective. The author composes fictional contexts that disregard the pretence of reliability in non-fictional texts. Doctorow focuses on how contexts are formed: the contexts are usually defined through the experience of characters who have been exposed to an event or events that were generated by motivations, for example, emotions of fear, racism, conviction, desire and greed, i.e., the catalysts that form history. Each of the novels discussed focuses on various aspects of society and the fate of specific individuals. The Book of Daniel proposes that a human being can only survive physically and spiritually by remaining a social entity. Ragtime focuses on the persistent illusion in history that society is fragmented. The various "faces" of society encountered by the main character in Loon Lake, mirror one another and reflect spiritual poverty. Consequently, Loon Lake demonstrates that the search for personal fulfilment does not require a physical journey, but an inner or spiritual exploration. World's Fair postulates that reality is never exclusively defined by either fortune or misfortune alone. The Waterworks offers perhaps one of the most significant evaluations of history as it perceives that the world in which we live is essentially unknown to us. We have neither the practical means to obtain a total perspective of what occurs in society (especially among politicians and the financially powerful) nor do we have sufficient skills to distinguish what the motivations of individuals' actions really entail. / Thesis (M.A.) Potchefstroom University for Christian Higher Education, 2000.

This thesis explores the utility of the conflated term “colonial medicine” by drawing on events during an historical outbreak of amebic dysentery that occurred on several Indian Reservations near Loon Lake, Saskatchewan, during the 1960s and ‘70s, including a series of government-sponsored drug trials conducted to stem the outbreak. Largely devoid of the racialized notions characterizing primary documents used by previous scholars of ‘colonial medicine’, the medical journal articles, government memorandums, and letters written by physicians in connection with the outbreak and trials reveal their immersion in ‘la clinique’, or an anatomo-clinical discourse similar to what theorist Michel Foucault described in Birth of the Clinic. Conversely, conversations with Loon Lake area community members on the subjects of the outbreak and trials reveal their multiplex and nuanced reactions to medical and colonial discourses. Arguably, then, when writing about past events, historians should weigh ‘medicine’ and colonial discourse separately. Essential methodological consideration was given to the Foucauldian concept of ‘disinterring’ popular knowledge. Drawing on Foucault’s edited works Power/Knowledge and I, Pierre Riviére, the subjugated knowledges of Aboriginal community members, physicians, sanitation workers, and government employees gleaned through interviews and text are contrasted as per his example in these works with the false functionalism of ‘scientificity’. Moreover, when considered in tandem, these subjugated knowledges illustrate a ‘structural violence’, following anthropologist Paul Farmer’s methodology for describing such phenomena in Pathologies of Power. Overarchingly, they obscure the paradigmatic dichotomies (‘doctor’/‘patient’, ‘patient’/the healthy person, ‘colonizer’/‘colonized’, ‘oppressor’/‘oppressed’) espoused in medical, colonial, and even post-colonial discourses. This understanding forces the reflexive recognition that–if we accept rhetorician Christopher Bracken’s assertion in Magical Criticism there is a recourse to savage philosophy within academia–what we say as historians has consequence beyond discourse, possibly creating new ‘subjects’ in a Foucauldian, disciplined society.

Approximately 10,000 tones of Hg are deposited annually as a result of anthropogenic activities. This increased Hg burden is known to have adverse neurological and reproductive effects on Common loons. A positive correlation between mercury (Hg) and selenium (Se) has been reported to exist in marine mammals and various species of marine and aquatic piscivorous birds. It has been hypothesized that the Hg/Se interactions may involve in the multiple mechanisms of Hg detoxification. This study focused on the suggested Hg/Se complex that forms in association with specific proteins. Specifically, this project focuses on the nature of these interactions in different tissues from wild Common loons (Gavia immer) that have been collected by the Canadian Wildlife Service. The Hg and Se concentrations in the various tissues were quantified using AAS. MALDI-TOF-MS and protein sequencing characterized the nature of the Hg/Se complex binding protein. Among the tissues, the liver had the highest concentrations of Hg and Se followed by kidney; muscle and brain. A strong association between Hg and Se was found in liver, kidney and eggs whereas there was no association in muscle and brain. In contrast brain and muscle had highest percentage of organic Hg suggesting that only inorganic Hg is associated with Se. Two Hg-Se binding protein complexes were found in liver both in the 15,200-15,300 Da range while one such complex in the same weight range was found in kidneys, when sequenced it was found that these proteins were the alpha A chain of Hemoglobin. The protein complex found in eggs was unique and although it was impossible to fully sequence it, it represents an unknown protein. The role of Se in Hg toxicity in eggs warrants further study.