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Articles 1 - 8 of 8
Full-Text Articles in Physical Sciences and Mathematics
Herbicide Management Alters Fungal Biomass And Community Composition In Great Lakes Coastal Wetlands, Erica Danae Lathers
Herbicide Management Alters Fungal Biomass And Community Composition In Great Lakes Coastal Wetlands, Erica Danae Lathers
Master's Theses and Doctoral Dissertations
Wetlands provide many ecosystem services, and invasive species and their management can alter these services. Plant responses to wetland management actions are typically monitored, but less is known about how soils respond. Phragmites australis, an invasive wetland plant, can alter soil conditions, potentially impacting soil microbial structure and function. We sampled soil communities in Great Lakes coastal wetlands in southeastern Michigan dominated by Phragmites and sites that had been previously invaded by Phragmites then treated with herbicide from 2011-2017, to understand how herbicide management alters soil fungal communities. We assessed microbial and fungal biomass, fungal community composition, greenhouse gas emissions, …
Soil And Compost Tea: A New Restoration Technique?, Carol E. Day
Soil And Compost Tea: A New Restoration Technique?, Carol E. Day
Master's Theses and Doctoral Dissertations
Historically, prairie restorations have lacked the plant diversity seen in remnant prairies. Most restoration practices focus on reestablishing the plant community but overlook the soil microbial community even though microbes are critical to habitat functioning. Developing techniques that increase soil microbes in prairie restorations is critical to ensuring diverse restored habitats. We compared how microbial communities differed between remnant and restored prairie sites. We also investigated if soil and compost teas could be used to reintroduce microbes to restored prairie soil and if the teas affected native plant establishment. We found significant differences in the levels of bacterial taxa between …
Introducing An H113a Mutation Into Atg10 Y73q To Reduce Autophagic Activity And Understand The Effect Of Atg On Autophagosome Size And Number, Konrad L. Lautenschlager
Introducing An H113a Mutation Into Atg10 Y73q To Reduce Autophagic Activity And Understand The Effect Of Atg On Autophagosome Size And Number, Konrad L. Lautenschlager
Senior Honors Theses and Projects
Autophagy is an essential recycling process that occurs within eukaryotic cells, however, the individual functions of the current thirty-two known autophagic proteins are not yet entirely understood. At this time, it is known that the autophagic protein Atg7 works upstream of both Atg3 and Atg10. Atg3 is affected by Atg7 and allows for the attachment of Atg8 and the lipid PE which is part of the autophagosome membrane. The Atg10 pathway is also affected by Atg7 but attaches Atg12 to Atg5 which upregulates the function of Atg3 and ultimately Atg8 lipidation. These protein interactions are necessary for forming autophagosomes, large …
The Implementation Of A Novel Graphical Python Editor (Stremecoder) In A Rodent Discrimination Apparatus, Supraja Kalva
The Implementation Of A Novel Graphical Python Editor (Stremecoder) In A Rodent Discrimination Apparatus, Supraja Kalva
Senior Honors Theses and Projects
As the interest in neuroscience and the desire to perform behavioral tasks in a higher level of specificity and accuracy increases, the need to have tools and techniques to conduct experimentations in a low-cost automated manner is essential. Although such methods have been proposed previously by other researchers, they have presented their data and tools in a manner that would have been difficult to comprehend for non-programmers. In labs that do not have the accessibility to individuals who can understand the published procedures, it is very difficult for them to get started and manipulate the published procedures to their interests. …
The Effects Of Low-Level Pharmaceuticals On Stream Biofilm Structure And Function Across A Land-Use Gradient In Streams Of The Huron River Watershed, Elizabeth Mae Stover
The Effects Of Low-Level Pharmaceuticals On Stream Biofilm Structure And Function Across A Land-Use Gradient In Streams Of The Huron River Watershed, Elizabeth Mae Stover
Master's Theses and Doctoral Dissertations
Pharmaceuticals and personal care products (PPCPs) are a contaminant class of worldwide concern. Their environmental omnipresence indicates they may be a potential source of global change, and ecosystem-scale impacts at non-lethal levels have not been fully explored. We used stream biofilms to assess ecosystem responses to PPCPs. Biofilms were cultivated in streams draining areas of different land use and then exposed to triclosan, diphenhydramine, and sulfamethoxazole-trimethoprim treatments. We found evidence that low levels of these PPCPs affected some, but not all, aspects of biofilm processes and bacterial community composition. Bacterial carbon uptake was reduced (p = 0.06) and we found …
The Effect Of Neonicotinoids On Apis Mellifera: A Revisit, Qingchen Liang
The Effect Of Neonicotinoids On Apis Mellifera: A Revisit, Qingchen Liang
Master's Theses and Doctoral Dissertations
Colony collapse disorder (CCD), which has caused high colony mortality rates in the European honeybee (Apis mellifera), is a pressing economical and ecological problem. I revisited Woodcock et al.'s (2017a) paper, "Country-specic Effects of Neonicotinoid Pesticides on Honey Bees and Wild Bees", in light of unsound statistical methods used in the original study. In the first part of this paper, I attempted to replicate the analysis underlying key findings in the original paper. In the second part, I reanalyzed the data using mostly non-parametric methods in order to obtain robust results. I did not find any evidence for a harmful …
Effects Of Yoga On The Motor Skills Of A Ten-Year-Old Male With Autism Spectrum Disorder, Amber Schmitt
Effects Of Yoga On The Motor Skills Of A Ten-Year-Old Male With Autism Spectrum Disorder, Amber Schmitt
Senior Honors Theses and Projects
Autism Spectrum Disorder (ASD} is a neurodevelopmental disorder that is typically diagnosed in childhood due to the presence of atypical development, social interactions, and repetitive stereotypical patterns of behavior. The purpose of the present study was to examine the effects of a yoga intervention on a ten-year-old male diagnosed with ASD. It was hypothesized that the yoga intervention on select instructed poses would increase both pose duration and pose performance and that the results would generalize to longer pose duration and better pose performance on non-instructed poses. Pre-intervention assessments of motor functioning were administered, including the Movement ABC, BOT-2, TGMD, …
Salt Retention In Wetland Soils And Effects On Dissolved Organic Carbon Export, Kayla Marie Mcguire
Salt Retention In Wetland Soils And Effects On Dissolved Organic Carbon Export, Kayla Marie Mcguire
Master's Theses and Doctoral Dissertations
Deicing salt runoff has negative effects on ecosystems. Wetland ecosystems can act as important filters for runoff pollution (e.g., nutrients), mitigating damage to plants and microbes. Wetlands are important sinks for nutrients and pollutants (e.g., road salt) and transformation spots for many nutrients including carbon. The interactions between deicing salt runoff and wetland soil carbon were explored by measuring chloride export and retention, dissolved organic carbon (DOC) export, and carbon quality using mesocosm experiments. Net retention of Cl- was highest in soils receiving high salt treatments (5.0 g/L NaCl), although percent retention of Cl- was greater in soils receiving moderate …