Redhead duck (Aythya americana) nesting and habitat change was studied in Knudson Marsh, Utah, in 1974 and 1975, and compared with earlier studies from 1950 and 1955 on the same marsh. Water condibons in 1975 were found to be similar to those in 1950, both years of favorable habitat, yet there was a decline in numbers of redheads from 500 pair s in 1950 to 50 pairs in 1975. The number of nests found also declined from 151 in 1950 to 49 in 1975. Water conditions were poor in 1955 and slightly more favorable in 1974, but there was a decline from 95 pairs and 49 nests in 1955 to 50 pairs and 23 nests in 1974. Success of active nests was greater in the present study than in 1950, but hatching success in successful nests was greater in 1950. No appreciable change in the vegetational composition of the marsh was detected between 1950 and the present study.

Redhead duck (Aythya americana) nesting and habitat change was studied in Knudson Marsh, Utah, in 1974 and 1975, and compared with earlier studies from 1950 and 1955 on the same marsh. Water conditions in 1975 were found to be similar to those in 1950, both years of favorable habitat, yet there was a decline in numbers of redheads from 500 pairs in 1950 to 50 pairs in 1975. The number of nests found also declined from 151 in 1950 to 49 in 1975. Water conditions were poor in 1955 and slightly more favorable in 1974, but there was a decline from 95 pairs and 49 nests in 1955 to 50 pairs and 23 nests in 1974. Success of active nests was greater in the present study than in 1950, but hatching success in successful nests was greater in 1950. No appreciable change in the vegetational composition of the marsh was detected between 1950 and the present study.

Thesis (Ph. D.)--Boston University Includes bibliographical references (leaves 287-293). Abstract: leaves 294-301.

Boston personalism has generally been recognized as a philosophic system based upon a metaphysical idealism. What is less known, however, is that the founder of this school of thought and some of the major contributors to the early development of this tradition were committed members of the Methodist Episcopal Church. The purpose of this study is to examine the contributions made by the early Boston personalists to the cause of theological liberalism in the Methodist Church. It will be shown that personalist philosophers and theologians at Boston University ushered in and consolidated the liberal era in Methodist theology. Further, it will be argued that the religious demands of the philosophy of personalism eventually led some members of the tradition from theological liberalism to modernism and the beginnings of a religious pluralism. In other words, the thesis of this study is that the early Boston personalists were theological innovators in the Methodist Church, leading the denomination from its nineteenth-century evangelical pietism to the modernism and pluralism that was part of mid-twentieth century American Protestantism. The focus of this study will therefore be on the first two generations of personalists at Boston University: the founder of the personalist tradition, Borden Parker Bowne, and two of his most prominent students, Albert Cornelius Knudson and Edgar Sheffield Brightman. One chapter is devoted to each of figure, focused upon the impact of their personalist philosophy and methodology on their theology and philosophy of religion, and their influence on American Methodist theology. The period this study, which commences from the time of Bowne's appointment to the Department of Philosophy at Boston University in 1876 to the death of both Knudson and Brightman in 1953, reveals how Methodism grappled with the theological implications raised by the complexities of modernity and the emerging sciences. Attention will be focused on how the philosophical method of the personalists dictated their movement from pietism toward liberalism and onto modernism and pluralism. As such, this study demonstrates the integral role played by the Boston personalist tradition in theological development during the liberal era of American Methodism.