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• 1. [Article] The Relation of Precipitation and Annual Tree-Ring Growth of Douglas-Fir in Stands of Different Ages in the Western Oregon Cascade Range

  33 p. A THESIS Presented to the Department of Environmental Studies of the University of Oregon in partial fulfillment of the requirements for the degree of Bachelor of Science with Honors in Environmental ...

  Citation × Citation Citation Abstract Copy Title: The Relation of Precipitation and Annual Tree-Ring Growth of Douglas-Fir in Stands of Different Ages in the Western Oregon Cascade Range Author: Argo, Kathryn L., 1985- Year: 2007 33 p. A THESIS Presented to the Department of Environmental Studies of the University of Oregon in partial fulfillment of the requirements for the degree of Bachelor of Science with Honors in Environmental Science, Spring 2007. Title: The Relation of Precipitation and Annual Tree-Ring Growth of Douglas-Fir in Stands of Different Ages in the Western Oregon Cascade Range Author: Argo, Kathryn L., 1985- Year: 2007 33 p. A THESIS Presented to the Department of Environmental Studies of the University of Oregon in partial fulfillment of the requirements for the degree of Bachelor of Science with Honors in Environmental Science, Spring 2007. Close

• 2. [Article] Carbon and Oxygen Isotope Fractionation in Laboratory-Precipitated, Inorganic Calcite

  Carbon and oxygen isotopes in calcite crystals provide a record of the environmental conditions under which the crystals formed. To investigate the influence of temperature, pH, and growth rate on isotope ...

  Citation × Citation Citation Abstract Copy Title: Carbon and Oxygen Isotope Fractionation in Laboratory-Precipitated, Inorganic Calcite Author: Baker, Evan Year: 2015 Carbon and oxygen isotopes in calcite crystals provide a record of the environmental conditions under which the crystals formed. To investigate the influence of temperature, pH, and growth rate on isotope discrimination by calcite, we measured carbon and oxygen isotope fractionation through a series of calcite precipitation experiments at T = 25C and pH = 7.5 - 9.3. We observe that neither the carbon nor oxygen isotope compositions correspond to the theoretical equilibrium isotope fractionation between calcite and solution. We also demonstrate that the fractionation of oxygen isotopes between calcite and water decreases with increasing pH, consistent with available data from experiments in which the enzyme carbonic anhydrase was used. Finally, we compare the carbon and oxygen isotopes of our calcite crystals to those of biogenic carbonates. This thesis includes previously unpublished co-authored material. Title: Carbon and Oxygen Isotope Fractionation in Laboratory-Precipitated, Inorganic Calcite Author: Baker, Evan Year: 2015 Carbon and oxygen isotopes in calcite crystals provide a record of the environmental conditions under which the crystals formed. To investigate the influence of temperature, pH, and growth rate on isotope discrimination by calcite, we measured carbon and oxygen isotope fractionation through a series of calcite precipitation experiments at T = 25C and pH = 7.5 - 9.3. We observe that neither the carbon nor oxygen isotope compositions correspond to the theoretical equilibrium isotope fractionation between calcite and solution. We also demonstrate that the fractionation of oxygen isotopes between calcite and water decreases with increasing pH, consistent with available data from experiments in which the enzyme carbonic anhydrase was used. Finally, we compare the carbon and oxygen isotopes of our calcite crystals to those of biogenic carbonates. This thesis includes previously unpublished co-authored material. Close

• 3. [Article] To Escape, Avoid, or Tolerate: Physiological Responses of Perennial Grasses to Experimental Climate Change

  I used an experimental warming and precipitation experiment in a restored Oregon, USA prairie with a Mediterranean climate to understand how a suite of leaf physiological traits allows two native perennial ...

  Citation × Citation Citation Abstract Copy Title: To Escape, Avoid, or Tolerate: Physiological Responses of Perennial Grasses to Experimental Climate Change Author: Goklany, Maya Year: 2012 I used an experimental warming and precipitation experiment in a restored Oregon, USA prairie with a Mediterranean climate to understand how a suite of leaf physiological traits allows two native perennial grasses ( Title: To Escape, Avoid, or Tolerate: Physiological Responses of Perennial Grasses to Experimental Climate Change Author: Goklany, Maya Year: 2012 I used an experimental warming and precipitation experiment in a restored Oregon, USA prairie with a Mediterranean climate to understand how a suite of leaf physiological traits allows two native perennial grasses ( Close

• 4. [Article] Cascades Resource Area soil rehabilitation decision record

  7 pp. Table. Townships 1 North through 13 South, Ranges 1 West through 7 East. Captured July 17, 2007.

  Citation × Citation Citation Abstract Copy Title: Cascades Resource Area soil rehabilitation decision record Author: United States. Bureau of Land Management. Salem District Year: 2008, 2007 7 pp. Table. Townships 1 North through 13 South, Ranges 1 West through 7 East. Captured July 17, 2007. Title: Cascades Resource Area soil rehabilitation decision record Author: United States. Bureau of Land Management. Salem District Year: 2008, 2007 7 pp. Table. Townships 1 North through 13 South, Ranges 1 West through 7 East. Captured July 17, 2007. Close

• 5. [Article] Dissociation : Vol. 8, No. 3, p. 165-174 : Loss of "background": a perceptual theory of dissociation

  p. 165-174

  Citation × Citation Citation Abstract Copy Title: Dissociation : Vol. 8, No. 3, p. 165-174 : Loss of "background": a perceptual theory of dissociation Author: Beere, Don Year: 2005, 1995 p. 165-174 Title: Dissociation : Vol. 8, No. 3, p. 165-174 : Loss of "background": a perceptual theory of dissociation Author: Beere, Don Year: 2005, 1995 p. 165-174 Close

• 6. [Article] Climate Change Impacts on the Productivity and Community Dynamics of Pacific Northwest Prairie Systems

  1 page poster

  Citation × Citation Citation Abstract Copy Title: Climate Change Impacts on the Productivity and Community Dynamics of Pacific Northwest Prairie Systems Author: Okotie-Oyekan, Aimee Year: 2017 1 page poster Title: Climate Change Impacts on the Productivity and Community Dynamics of Pacific Northwest Prairie Systems Author: Okotie-Oyekan, Aimee Year: 2017 1 page poster Close

• 7. [Article] Sedimentation, Climate Change and Tectonics: Dynamic Stratigraphy of the Pliocene-Pleistocene Fish Creek-Vallecito Basin, California

  In order to better understand the interactions between climate change, landscape erosion and sedimentation, a detailed study was conducted on Plio-Pleistocene non-marine deposits of the Palm Spring Group ...

  Citation × Citation Citation Abstract Copy Title: Sedimentation, Climate Change and Tectonics: Dynamic Stratigraphy of the Pliocene-Pleistocene Fish Creek-Vallecito Basin, California Author: Peryam, Thomas Year: 2012 In order to better understand the interactions between climate change, landscape erosion and sedimentation, a detailed study was conducted on Plio-Pleistocene non-marine deposits of the Palm Spring Group in the Fish Creek-Vallecito basin, California, USA. Three inter-related studies focused on (1) local response to global climate change in late Pliocene-early Pleistocene time, (2) large-scale evolution of lithofacies architecture, and (3) climate modulation of late Pliocene sediment flux on Milankovitch time scales. Stable isotopes and paleosol classification reveal that between ~4.0 and 0.75 Ma, aridity increased in the study area concurrent with a shift towards a less intense and more winter-dominated precipitation regime. These changes are interpreted to reflect the long-term waning of summer monsoon precipitation in southern California. A dramatic and enigmatic reorganization of basin strata occurred at 2.9 Ma. Detailed basin analysis shows that locally-derived sediment was supplied by the predecessors of two modern drainages, Vallecito and Carrizo creeks. Initial progradation of alluvial deposits from these two sources across the Colorado River delta plain began between 4.0-3.4 Ma. At 2.9 Ma, rapid progradation of these two deposystems was coeval with emplacement of a megabreccia and transgression of Borrego Lake. My data indicate that tectonic realignments at both local and regional scales drove this reorganization. Time series analysis of rock magnetic data from a densely-sampled stratigraphic section of the lacustrine Tapiado Formation reveals that between 2.9 and ~2.75 Ma landscape denudation in the Carrizo Creek catchment was partly modulated by orbital obliquity. Peaks in landscape denudation implied by my data correspond to obliquity highs. More frequent high intensity precipitation events (i.e. monsoons and tropical storms) probably drove increased erosion during these time periods relative to obliquity lows. The breakdown of this relationship at around 2.75 Ma corresponds to a dramatic increase in northern hemisphere glaciation and may reveal a reduction in monsoonal influence in southern California. A geologic map of the Fish Creek-Vallecito basin is included as a supplemental file to this dissertation. This dissertation contains previously published and unpublished coauthored material. Title: Sedimentation, Climate Change and Tectonics: Dynamic Stratigraphy of the Pliocene-Pleistocene Fish Creek-Vallecito Basin, California Author: Peryam, Thomas Year: 2012 In order to better understand the interactions between climate change, landscape erosion and sedimentation, a detailed study was conducted on Plio-Pleistocene non-marine deposits of the Palm Spring Group in the Fish Creek-Vallecito basin, California, USA. Three inter-related studies focused on (1) local response to global climate change in late Pliocene-early Pleistocene time, (2) large-scale evolution of lithofacies architecture, and (3) climate modulation of late Pliocene sediment flux on Milankovitch time scales. Stable isotopes and paleosol classification reveal that between ~4.0 and 0.75 Ma, aridity increased in the study area concurrent with a shift towards a less intense and more winter-dominated precipitation regime. These changes are interpreted to reflect the long-term waning of summer monsoon precipitation in southern California. A dramatic and enigmatic reorganization of basin strata occurred at 2.9 Ma. Detailed basin analysis shows that locally-derived sediment was supplied by the predecessors of two modern drainages, Vallecito and Carrizo creeks. Initial progradation of alluvial deposits from these two sources across the Colorado River delta plain began between 4.0-3.4 Ma. At 2.9 Ma, rapid progradation of these two deposystems was coeval with emplacement of a megabreccia and transgression of Borrego Lake. My data indicate that tectonic realignments at both local and regional scales drove this reorganization. Time series analysis of rock magnetic data from a densely-sampled stratigraphic section of the lacustrine Tapiado Formation reveals that between 2.9 and ~2.75 Ma landscape denudation in the Carrizo Creek catchment was partly modulated by orbital obliquity. Peaks in landscape denudation implied by my data correspond to obliquity highs. More frequent high intensity precipitation events (i.e. monsoons and tropical storms) probably drove increased erosion during these time periods relative to obliquity lows. The breakdown of this relationship at around 2.75 Ma corresponds to a dramatic increase in northern hemisphere glaciation and may reveal a reduction in monsoonal influence in southern California. A geologic map of the Fish Creek-Vallecito basin is included as a supplemental file to this dissertation. This dissertation contains previously published and unpublished coauthored material. Close

• 8. [Article] Mapping Virtual Water Use in Canada’s Prairies: A Comparison between Prairie Virtual Water Demands and Renewable Supply

  66 pages. A thesis presented to the Department of Geography and the Clark Honors College of the University of Oregon in partial fulfillment of the requirements for degree of Bachelor of Science, Spring ...

  Citation × Citation Citation Abstract Copy Title: Mapping Virtual Water Use in Canada’s Prairies: A Comparison between Prairie Virtual Water Demands and Renewable Supply Author: Garcia, Gregory "Manny" Manuel Year: 2014 66 pages. A thesis presented to the Department of Geography and the Clark Honors College of the University of Oregon in partial fulfillment of the requirements for degree of Bachelor of Science, Spring 2014. Title: Mapping Virtual Water Use in Canada’s Prairies: A Comparison between Prairie Virtual Water Demands and Renewable Supply Author: Garcia, Gregory "Manny" Manuel Year: 2014 66 pages. A thesis presented to the Department of Geography and the Clark Honors College of the University of Oregon in partial fulfillment of the requirements for degree of Bachelor of Science, Spring 2014. Close

• 9. [Article] Microbial Biodiversity of the Atmosphere

  Microorganisms are critical to the functioning of terrestrial and aquatic ecosystems and may also play a role in the functioning of the atmosphere. However, little is known about the diversity and function ...

  Citation × Citation Citation Abstract Copy Title: Microbial Biodiversity of the Atmosphere Author: Klein, Ann Year: 2016 Microorganisms are critical to the functioning of terrestrial and aquatic ecosystems and may also play a role in the functioning of the atmosphere. However, little is known about the diversity and function of microorganisms in the atmosphere. To investigate the forces driving the assembly of bacterial microbial communities in the atmosphere, I measured temporal variation in bacterial diversity and composition over diurnal and inter-day time scales. Results suggest that bacterial communities in the atmosphere markedly vary over diurnal time scales and are likely structured by inputs from both local terrestrial and long-distance sources. To assess the potential functions of bacteria and fungi in the atmosphere, I characterized total and potentially active communities using both RNA- and DNA-based data. Results suggest there are metabolically active microorganisms in the atmosphere that may affect atmospheric functions including precipitation development and carbon cycling. This dissertation includes previously published and unpublished co-authored material. Title: Microbial Biodiversity of the Atmosphere Author: Klein, Ann Year: 2016 Microorganisms are critical to the functioning of terrestrial and aquatic ecosystems and may also play a role in the functioning of the atmosphere. However, little is known about the diversity and function of microorganisms in the atmosphere. To investigate the forces driving the assembly of bacterial microbial communities in the atmosphere, I measured temporal variation in bacterial diversity and composition over diurnal and inter-day time scales. Results suggest that bacterial communities in the atmosphere markedly vary over diurnal time scales and are likely structured by inputs from both local terrestrial and long-distance sources. To assess the potential functions of bacteria and fungi in the atmosphere, I characterized total and potentially active communities using both RNA- and DNA-based data. Results suggest there are metabolically active microorganisms in the atmosphere that may affect atmospheric functions including precipitation development and carbon cycling. This dissertation includes previously published and unpublished co-authored material. Close

• 10. [Article] Cascades Resource Area soil rehabilitation environmental assessment and finding of no significant impact

  33 pp. Tables, map, appendices, references. Townships 1 North through 13 South, Ranges 1 West through 7 East. Captured July 17, 2007.

  Citation × Citation Citation Abstract Copy Title: Cascades Resource Area soil rehabilitation environmental assessment and finding of no significant impact Author: United States. Bureau of Land Management. Salem District Year: 2008, 2006 33 pp. Tables, map, appendices, references. Townships 1 North through 13 South, Ranges 1 West through 7 East. Captured July 17, 2007. Title: Cascades Resource Area soil rehabilitation environmental assessment and finding of no significant impact Author: United States. Bureau of Land Management. Salem District Year: 2008, 2006 33 pp. Tables, map, appendices, references. Townships 1 North through 13 South, Ranges 1 West through 7 East. Captured July 17, 2007. Close