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Articles 1 - 6 of 6
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Earthworm, Microbial Biomass, And Leaf Litter Decay Responses After Invasive Honeysuckle Shrub Removal From Urban Woodlands., Robert Preston Pipal
Earthworm, Microbial Biomass, And Leaf Litter Decay Responses After Invasive Honeysuckle Shrub Removal From Urban Woodlands., Robert Preston Pipal
Electronic Theses and Dissertations
Invasive species are one of the leading causes of biodiversity loss and their presence can significantly impact the structure and function of native ecosystems. In this dissertation, the impacts of the invasive honeysuckle shrub, Lonicera maackii, on exotic earthworm populations, leaf litter decay responses, and inorganic and organic nutrient pools in an urban woodland park are assessed. Chapter 1 provides a brief review of honeysuckle's effects on forest ecosystems. Chapter 2 describes honeysuckle’s effects on exotic earthworm populations and the seasonal importance of macroinvertebrates to leaf litter decomposition in urban woodlands. This study revealed that L. maackii promoted higher exotic …
Epidemiology And Virulence Of Clostridium Difficile : An Evolutionary Perspective., Lindsey E. Hastings
Epidemiology And Virulence Of Clostridium Difficile : An Evolutionary Perspective., Lindsey E. Hastings
College of Arts & Sciences Senior Honors Theses
The emergence of virulent, antibiotic-resistant Clostridium difficile ribotypes over the past thirty years has greatly concerned both the medical and research communities. As of 2010, C. difficile has surpassed methicillin-resistant Staphylococcus aureus (MRSA) as a cause of nosocomial infections and is now found in both healthcare settings and outside communities in the United States. Attendant-borne transmission in hospitals has been associated with the evolution of increased virulence in other nosocomial pathogens, but evolutionary theory has yet to be applied to the epidemiology and virulence of C. difficile. Differences between nosocomial C. difficile infections (CDI) and community-associated CDI (CA-CDI) mortality and …
Interactions Between Human Neutrophils And Mycobacterium Smegmatis : A Comparative General Analysis., Irina Miralda
Interactions Between Human Neutrophils And Mycobacterium Smegmatis : A Comparative General Analysis., Irina Miralda
College of Arts & Sciences Senior Honors Theses
Mycobacteria smegmatis is an abundant soil and water inhabitant with which humans are continuously in contact. Despite the fact that it is typically considered non-‐pathogenic, a few rare cases of M. smegmatis-‐caused infections have been reported and it has been shown that M. smegmatis is able to modulate inflammatory responses in macrophages. Neutrophils are the innate immune system’s first line of centralized defense against invading microbes, especially the frequently encountered M. smegmatis. However, very little information is known of the mechanism by which neutrophils eliminate environmental bacteria. In this study, the hypothesis that M. smegmatis regulates neutrophil functional responses, and …
Invasive Plants As Drivers And Passengers Of Community Change In A Disturbed Urban Forest., Jeffery A. Masters
Invasive Plants As Drivers And Passengers Of Community Change In A Disturbed Urban Forest., Jeffery A. Masters
Electronic Theses and Dissertations
Invasive species can impact local ecosystems by decreasing biodiversity and local abundances of native species. Invasive species also frequently establish in disturbed habitats. An invasive species may dominate a habitat because the introduced species is a superior competitor (driver model) for resources or because the introduced species is more tolerant of noncompetitive processes such as anthropogenic disturbance that reduces the diversity and abundance of native species (passenger model). Ranunculus ficaria (Ranunculaceae) is an invasive plant species in the northeastern United States, and can be especially dense in urban riparian habitats. It emerges early and forms thick mats of vegetation that …
The Human Immune Response To The Flagellins Of Burkholderia Dolosa., Molly Mcdonald
The Human Immune Response To The Flagellins Of Burkholderia Dolosa., Molly Mcdonald
College of Arts & Sciences Senior Honors Theses
Cystic Fibrosis (CF) is the most commonly inherited lethal disorder in Caucasian populations. Chronic bacterial infection both decreases lung function and lowers the quality of the CF patient’s life. In one of the most recent CF epidemics, Burkholderia dolosa, an organism previously uncharacterized as an epidemic strain, infected over forty patients and led to the death of over seven patients at Children’s Hospital Boston. Preliminary research revealed that this strain of B. dolosa possesses genes for two distinct types of flagella, which is uncommon in bacterial pathogens. In this study we examine the interaction of human cells and B. dolosa, …
Identification And Expression Analysis Of Sugar Transporters In Microbotryum Violaceum., Jared Morris Andrews
Identification And Expression Analysis Of Sugar Transporters In Microbotryum Violaceum., Jared Morris Andrews
College of Arts & Sciences Senior Honors Theses
No abstract provided.