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2020

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Alternative Water Sources In Western Conifers Via Foliar Uptake And Hydraulic Redistribution, Ariel Sol Weisgrau Jan 2020

Alternative Water Sources In Western Conifers Via Foliar Uptake And Hydraulic Redistribution, Ariel Sol Weisgrau

Cal Poly Humboldt theses and projects

Water is often the most limiting resource in a plant’s environment. Plants that can maximize their ability to acquire water improve their chances of success. Outside of the traditional soil-plant-atmosphere continuum, plants can alternatively acquire water via foliar uptake of water and hydraulic redistribution (HR) of deep water. This study used greenhouse-based experiments to investigate water use and physiology in four conifer species native to the western U.S.: Picea sitchensis (Bong.) Carriére (PISI), Pseudotsuga menziesii (Mirb.) Franco (PSME), Sequoia sempervirens (D. Don) Endl. (SESE), and Thuja plicata Donn ex. D. Don (THPL). First, this work investigated the capacity for foliar …

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Student Success And Geography: An Analysis Of Contributing Factors That Determine College Academic Achievement And Persistence Of Black Males, Lamarcus D. Howard Jan 2020

Student Success And Geography: An Analysis Of Contributing Factors That Determine College Academic Achievement And Persistence Of Black Males, Lamarcus D. Howard

Master's Theses and Doctoral Dissertations

The purpose of the study was to analyze the relationship between academic and nonacademic determinants of academic achievement and persistence and to identify how university geographic location influences the likelihood of Black male persistence. Quantitative data was drawn from the 2012/14 Beginning Postsecondary Students (BPS) Longitudinal Study (BPS: 12/14) conducted by the U.S. Department of Education National Center for Educational Statistics (NCES) to explore third-year academic achievement and persistence for Black males. This study identified two research questions, guided by the theoretical frameworks of Tinto’s student institutional departure model and Astin’s Input-Environment-Output model to assess Black male decisions to stay …

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Narrative Of The Wild: An Autoethnographic Exploration Of Protected Areas Within The United States Of America, Isaac S. Reimer Jan 2020

Narrative Of The Wild: An Autoethnographic Exploration Of Protected Areas Within The United States Of America, Isaac S. Reimer

Master's Theses and Doctoral Dissertations

As conditions for the global environment continue to degrade and the climate crisis deepens, wilderness and protected areas (PAs) serve as a bulwark for sustainability goals. As much of the protections and strengths of PAs stem from the public’s opinion of them, this research seeks to further understand the communicative underpinnings of PAs. Utilizing autoethnography and applying it to a rhetorical framework, this study explores the constitutive qualities narrative in conjunction with the wilderness can possess. The results offer suggestions for future communication scholars and advocates to employ while discussing and communicating about the wilderness.

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