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Modeling canopy foliar traits and disturbance interactions in central Texas woodlandsThomas, Jonathan Armstrong, White, Joseph Daniel. January 2009 (has links)
Thesis (M.S.)--Baylor University, 2009. / Includes bibliographical references (p. 53-55).
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Vegetation dynamics and response to disturbance, in floodplain forest ecosystems with a focus on lianasAllen, Bruce Peter, January 2007 (has links)
Thesis (Ph. D.)--Ohio State University, 2007. / Title from first page of PDF file. Includes bibliographical references (p. 160-168).
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Geomorphic response to restoration and disturbance: Grazing, fire, and flooding on the Middle Fork John Day River, OR / Grazing, fire, and flooding on the Middle Fork John Day River, ORMichelsen-Correa, Stephani 03 1900 (has links)
xii, 64 p. : ill. (some col.), maps / Salmon habitat restoration is ongoing at a Nature Conservancy preserve on the Middle Fork John Day River in the Columbia River Basin in north-central Oregon. The site has a long history of disturbance including dredge mining upstream, channelization, grazing, logging, fire, and floods. Using historic aerial photos, habitat unit surveys, and cross sectional profiles, this thesis shows how the channel morphology, particularly habitat unit diversity, has changed since 1939, just before placer mining began. Results show that the dominant influence on present day channel morphology is channelization from the 1930's. Other changes including dredge mining in the late 1930's to early 1940's, cessation of cattle grazing in 1991, and a fire followed by a flood in the winter of 1996-1997, had less impact because of the straightened, stabilized channel morphology. / Committee in charge: Patricia McDowell, Chairperson;
W. Andrew Marcus, Member / 10000-01-01
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