This item was digitized as part of the Million Books Project led by Carnegie Mellon University and supported by grants from the National Science Foundation (NSF). Cornell University coordinated the participation of land-grant and agricultural libraries in providing historical agricultural information for the digitization project; the University of Arizona Libraries, the College of Agriculture and Life Sciences, and the Office of Arid Lands Studies collaborated in the selection and provision of material for the digitization project.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1959. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 55-59).

Inaug.-diss.--Leipzig. / Lebenslauf.

Inaug.-Diss.--Marburg. / Lebenslauf. "Separat-Abdruck aus den Zoologischen Jahrbüchern, Bd. 22, Abt. f. Anatomie." Literaturverzeichnis": p. 39-40.

Inaug.-Diss.--Erlangen. / "Sonder-Abdruck aus: Zeitschrift für wissenschaftliche Zoologie, Bd. LXVII."

Thesis--Berlin. / Biography, p. [71].

Thesis (M. Sc.(Zoology and Entomology))--University of Pretoria, 2005. / Includes bibliographical references. Available on the Internet via the World Wide Web.

Relying on wild bees for pollination services has become necessary as the global demand for crops dependent on animal pollination increases. If wild bee populations are to establish and persist in agricultural landscapes, there must be sufficient floral resources over time and space. This study examines the relationship between bee visits in agroecosystems and the spatiotemporal availability of floral resources over one season. I expected that landscapes with greater floral resources earlier in the season would subsequently experience more bee visits than landscapes with fewer early-season floral resources, and that the spatiotemporal scale of this effect would differ among taxa. I measured bee visitation rate and floral resource density over three spatial scales and during four time-periods spanning one season, in 27 agricultural sites across Ontario and Québec, Canada. The present abundance of floral resources at a local scale positively influenced bee visits across all sampling periods. However, differences in the temporal scale of bees’ response to floral resources were observed at landscape scales. Past and present floral resources were positively or negatively associated with bee visits depending on the time of season and which taxon was examined. The number of visits by Andrenidae, honey bees, and bumble bees increased with floral resource abundance in previous time-periods, while other taxa exhibited a negative association with past floral resources, suggesting possible dilution of bee populations at a landscape scale. Understanding the scales at which bee taxa are influenced by floral resources can allow development of land management strategies that could enhance crop pollination and conserve species threatened by agricultural intensification.

On the one hand, using a traditional narrative approach, this dissertation examines disco's historical trajectory from an underground movement to a mainstream phenomenon, and analyzes its relationships to American cultural and racial tensions during the 1970s and 1980s. On the other hand, this dissertation also departs from traditional historical approaches by emphasizing an archive of personal experiences, memories, and reflections produced over the last four decades by individuals, living and dead, whose creative expressions help give disco its definition. Each chapter is organized around the story of an individual DJ whose work and play reflected the broader disco landscape. Together, the anecdotal experiences of these DJs help to conjure a collective biography of disco, emphasizing the significance of disco not only as a "genre" of pop music, but as a larger reference point for shared, and sometimes contested, cultural experiences.

Populations of honey bees have declined worldwide in recent years. One suspected cause is the widespread use of pesticides in agriculture. Experiments were conducted to examine potential exposure routes of pesticides to honey bees in the Midsouth. Neonicotinoid seed treatment compounds were studied to determine the rate at which they drift during planting and the rate at which they diminish in crop tissue during crop development. Honey bee foraging activity in Midsouth crops was observed to determine when and at what densities foraging honey bees could be active during pesticide applications. This project was designed to aid in understanding the risks that pesticides could potentially pose to honey bees in the Midsouth.