Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 17 of 17 for “"Environmental disturbance"”.
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Paleolimnological Study of Chironomidae (Diptera) Assemblage Responses to Multiple Stressors in Lake Nipigon (Northwestern Ontario)
… Ontario that has experienced over a century of environmental disturbance linked to hydroelectric development, mining, and climate change. This thesis applied paleolimnological methods to reconstruct historical chironomid assemblages and their responses to multiple stressors in nearshore areas, …
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A Mineralocorticoid-Dependent Effect of Prestress on Avoidance Responding in Rats
… of a particular delayed behavioral reaction to environmental disturbance.</p>
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Organisational change and the introduction of activity based costing in a UK clearing bank
… processes to help understand the effects of environmental disturbance, that is, the changes in the regulatory framework. The effect of environmental disturbance is assessed in terms of the levels and impacts of the changes on values (culture), organisational structures, management, accounting …
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Development of a pilot-in-the-loop flight simulator using NASA's transport class model
… testing are presented, as is the design of an environmental disturbance model to provide additional functionality for upcoming flight tests. Finally, preliminary results from simulator flight testing at the Illinois Simulator Laboratory are discussed.
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COMMUNITY IMPACTS TO AND FROM GLACIOLOGY: ANALYZING THE EFFECTS OF CLIMATE CHANGE ON HIMALAYAN MOUNTAIN COMMUNITIES WHILE BUILDING THE NEXT GENERATION OF GEOSCIENTISTS
… to the climate system. As we face the myriad of environmental alterations that climate change will challenge humanity with, it is becoming increasingly important to turn our attention towards community. This dissertation covers three projects that investigate the impacts of climate change on …
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Oceania Football Confederation: the impact of affiliate disaffiliation on the inter-organizational dynamics of a federated network
… dynamics of a network. To date the impact of an environmental disturbance such as member disaffiliation on the inter-organizational dynamics of a network has had minor academic interest. On January 1, 2006, the governing body of football in Australia completed their quest for a greater and more …
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Quantum State Estimation and Tracking for Superconducting Processors Using Machine Learning
… systems are very fragile and sensitive to environmental disturbance. In this thesis, I look at these continuous monitoring and state estimation problems from a modern point of view. With the help of machine learning techniques, it has become possible to explore regimes that are not …
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Numerical simulation of geothermal energy production in the Estevan area using water and CO2 as working fluids
… the induced seismicity, which results in less environmental disturbance, and could provide more stable subsurface heat generation. To conclude, the results and conclusions obtained in this study provide a deeper understanding of optimal designs and feasibility investigations of various …
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The emergence of cryptococcus gattii in British Columbia : veterinary aspects
… signs. A case-control study identified host and environmental risk factors for clinical C. gattii infection in dogs and cats suggesting that where an infectious agent is not uniformly distributed, individual risk increases when the organism is re-distributed through large scale environmental …
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Why it takes all kinds: diversity mechanisms and patterns in ecological communities
… from the interplay of community diversity and environmental conditions.<br/><br/>To further explore the effect of individual interactions on community diversity and stability, a model of interacting organisms is developed. This model is a modification of the plant model, with the possibility of …
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From micro to macro: the benefits and pitfalls of environmental generalism on coral reefs in the Anthropocene
… temperate, and deep-water reefs, a shift in environmental norms across marine ecosystems is causing species to expand into otherwise marginal environments. This widespread ecosystem restructuring raises the questions of which coral species in which locations will persevere under changing …
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Response and resilience of estuarine benthic ecosystems to anthropogenic pressures
… that the resilience of ecosystem functions to environmental disturbance depends on the biodiversity that underpins them, but field validations of this are lacking. I explored the shifts in sandflat macrofaunal community composition following organic matter enrichment, and the consequences for …
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Microbiome-centered Approaches to Marine Disturbance Ecology
… to alter our global ecosystem, ecological disturbances will increase in both frequency and intensity. These ecological disturbances have been shown to significantly impact microbial communities, often altering composition and/or function. However, while disturbance events are commonly …
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Investigating Causal Relationships between Global Change and Insect Interaction Networks: Insights into Dietary Specialization, Interaction Diversity, and Disturbances
… in arthropod networks before and after fire disturbance in the eastern Sierra Nevada mountains. I found that a prescribed fire created classic early successional habitat, allowing for random recruitment of arthropods using post-fire plants and detritus. The initial increase in primary …
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New Zealand seagrass (Zostera muelleri) response to acute sedimentation: Linking non-structural carbohydrate reserves to resilience
… current knowledge gaps associated with seagrass disturbance-response regimes and develops standardised methods to measure seagrass health and resilience. Sedimentation associated with increased human activity is a major environmental stressor to seagrass; yet little is known about how …
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High-bandwidth high-precision robust x-ray microscopy - a control systems approach
… good positioning resolution, rejection of environmental disturbance, attenuation of measurement noise, good X-ray diffraction image resolution and increased imaging bandwidth. However, the sensors and the fixtures that hold the sensors drift with time due to changing air temperature at the …
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Quantitative Methodology for Measuring Natural Character in New Zealand's Coastal Environments
… character was developed for the New Zealand environmental, legal and policy contexts that also addressed the role of perception. Court decisions on appeals lodged under the Resource Management Act were found to be generally consistent with this definition. The Quantitative Index for measuring …