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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Woody plant species composition in forest fragments at Muscatatuck National Wildlife Refuge

Fribley, Laura A. January 2006 (has links)
Several invasive woody plants grow in forest fragments at Muscatatuck National Wildlife Refuge in Seymour, Indiana. The objective of this study was to determine what woody species were growing in two upland forests and to assess the level of dominance that invasive species had in these areas. The variables of depth into the forest and directional aspect were also considered. Thirty-two belt transects were sampled and 54 woody species were found, including six invasive species: Ailanthus altissima (tree-ofheaven), Berberis thunbergii (Japanese barberry), Elaeagnus umbellata (autumn olive), Lonicera japonica (Japanese honeysuckle), Lonicera maackii (amur honeysuckle), and Rosa multiflora (multiflora rose). Importance values were calculated as an indicator of relative species dominance. Detrended Correspondence Analysis and Cluster analysis suggested that the invasive species were grouped on the forest edge transects; aspect was not found to be a determinant in where invasive species grew. Correlation coefficients demonstrated a significant difference between transect depth and the following variables at both forests: woody species density per transect, invasive species dominance, Elaeagnus umbellata density per hectare, and Lonicera japonica dominance. Rosa multiflora was one of the three most dominant understory species in both forests; on the edge transect, it was one of the top two. Soil temperatures were also measured at each transect, but no consistent trends were found within the data. In light of resources available, it is suggested that land managers focus on controlling Rosa multiflora and Ailanthus altissima. / Department of Natural Resources and Environmental Management
2

The Eugenic Origins of Indiana's Muscatatuck Colony: 1920-2005

Bragg, Abigail Nicole 09 1900 (has links)
Indiana University-Purdue University Indianapolis (IUPUI) / This thesis examines the widely unknown history and origins of Muscatatuck Colony, located in Butlerville, Indiana. The national eugenics movement impacted the United States politically, medically, legally, and socially. While the United States established mental institutions prior to the eugenics movement, many institutions, including ones in Indiana, were founded as eugenic tools to advance the agenda of achieving a “purer” society. Muscatatuck was one such state institution founded during this national movement. I explore various elements that made the national eugenics movement effective, how Indiana helped advance the movement, and how all these elements impacted Muscatatuck’s founding. I investigate the language used to describe people that were considered “mentally inferior,” specifically who the “feeble-minded” were and how Americans were grouped into this category. I research commonly held beliefs by eugenicists of this time-period, eugenic methods implemented, and how these discussions and actions led to the establishment of Muscatatuck in 1920. Muscatatuck Colony, though a byproduct of the national eugenics movement, outlived this scientific effort. Toward the mid and late twentieth century, Muscatatuck leadership executed institutional change to best reflect American society’s evolving thoughts on mental health and how best to treat people with mental disabilities. Muscatatuck Colony reveals a complicated narrative of how best to treat or care for people within these institutions, a complex narrative that many mental institutions share.

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