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Vertical Connectivity Influences Secondary Production, Community Diversity, And Resilience In An Ozark Stream, Nathan C. Dorff May 2019

Vertical Connectivity Influences Secondary Production, Community Diversity, And Resilience In An Ozark Stream, Nathan C. Dorff

MSU Graduate Theses

The hyporheic zone, a key component of stream vertical connectivity, supports stream function (e.g., nutrient regeneration) and provides habitat for aquatic biota. The Ozark Highlands ecoregion contains gravel-bed streams that have extensive hyporheic zones and that are subject to recurrent flash floods. I sampled Leuctra tenuis(Pictet) nymphs from the hyporheic habitat (30-45 cm below the streambed) in a gravel-bed reach and an intermittent tributary of an Ozark stream from early instar to adult emergence. Concurrently, I sampled benthic insects in two reaches of the same stream that differed primarily in amount of hyporheic habitat (bedrock vs. gravel) and monitored …


The Impact Of Bureaucracy, Power, And Structure On The Black Graduate Student Experience, Demetria Scherell Green May 2019

The Impact Of Bureaucracy, Power, And Structure On The Black Graduate Student Experience, Demetria Scherell Green

MSU Graduate Theses

This thesis utilizes muted group theory to understand the impact bureaucratic structure has on Black graduate students at predominantly white institutions. Muted group theory is used to inform individuals of the impact power functions have on both verbal and nonverbal communication. The premises of the theory focus on the lack of underrepresented voices present in policies, structures, and organizations. In order to gain clarity on the experiences of Black graduate students in particular, the use of qualitative data gathering provided unique insights to answer the research questions guiding this study. A focus group was first used to generate key themes, …