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.
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Showing 1 to 13 of 13 for “"disturbance event"”.
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The dynamics of the Afromontane forest remnants in the Southwestern Cape
… are related to environmental constraints and disturbance history. Riparian forest and Scree forest were identified, and differences in the structure a.nd composition of the two forest types and their ecotonal communities were evident at both the recently burnt site of Swartboskloof and the …
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Novel Finite Element Techniques to Expedite the Implementation and Computational Time of 3D Structural Models Showcased Through Space Habitat
… to capture the overall system's behavior under disturbance events, such as meteoroid impacts and moonquakes. The SOS framework incorporates damageable and repairable capabilities, allowing the evaluation of the effectiveness of safety controls in restoring a damaged habitat to a functional …
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Detection and characterization of forest disturbances in California
Natural and anthropogenic forest disturbances are a major influence on the global carbon cycle, with the local and global impacts of a disturbance event depending in large part on the timing, intensity, and cause of the disturbance. With some disturbance agents expected to increase in frequency and …
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Fire, flooding, and felids: Deer and puma spatial ecology and predator-prey interactions in dynamic, subtropical wildlands
Cyclic and extreme ecological disturbances have the capacity to alter resources and thereby animal populations. Interactions between disturbance and resource availability can influence predator-prey interactions. Predator-prey responses to ecological disturbance may be more pronounced in herbivores …
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Effects of human disturbance on the behavior and energetics of nonbreeding sanderlings
Human disturbance of avifauna and other wildlife is defined as any intentional or unintentional anthropogenic action that elicits a metabolic or behavioral response. I proposed that the energetic response to disturbance should be reflected as increased existence metabolism (EM). If so, then there …
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The microbial communities and nutrient availability in pre and post harvested lodgepole pine stands of west-central Alberta
… development of the forest environment. When a disturbance event occurs, changes to the environment occur; however, it is unclear how these changes affect the soil’s microbial community. This 2-year (2007 and 2008) study was carried out to obtain a preliminary assessment of the microbial …
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Outlining a balance-point model of homeostasis in the small intestine of broiler chickens
… nutritional needs and is able to help prevent internalization of pathogens or potentially toxic components. This balance can only be maintained under stable conditions. When a disturbance event occurs the intestine imbalances until a new, and less efficient, balance can be achieved. The …
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Statistical modeling of rare stochastic disturbance events at continental and global scales: post-fire debris flows and wildland fires
… is composed of a higher proportion of small events than that of non-fire-related debris flows. The slope of the frequency-magnitude distribution of post-fire debris flows is steeper than that of non-fire-related debris flows, corroborating evidence that small post-fire debris flows occur with …
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Statistical modeling of rare stochastic disturbance events at continental and global scales: post-fire debris flows and wildland fires
… is composed of a higher proportion of small events than that of non-fire-related debris flows. The slope of the frequency-magnitude distribution of post-fire debris flows is steeper than that of non-fire-related debris flows, corroborating evidence that small post-fire debris flows occur with …
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Fire disturbance belowground: untangling consequences for soil food webs and organic matter
… cause mortality of soil organisms during the disturbance event, change the soil pH, and alter the quantity and quality of soil organic matter (SOM). In particular, fires transform organic matter into pyrogenic carbon (PyC), a recalcitrant material with a dense aromatic structure and long …
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Fire Severity and Plant Community Dynamics in the Australian Alps, Southeastern New South Wales
… in composition, even after a large infrequent disturbance event such as the 2003 fires. Post-fire effects are transient rather than permanent. Infrequent high severity fire events in the Australian Alps should be regarded as natural disturbances, and not as disruptive perturbations, as they do …
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Fire Severity and Plant Community Dynamics in the Australian Alps, Southeastern New South Wales
… in composition, even after a large infrequent disturbance event such as the 2003 fires. Post-fire effects are transient rather than permanent. Infrequent high severity fire events in the Australian Alps should be regarded as natural disturbances, and not as disruptive perturbations, as they do …
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Fate of Eucalyptus marginata seed from canopy-store to emergence in the northern jarrah forests of Western Australia: Research to help improve regeneration following shelterwood treatment
… successful seedling regeneration following disturbance events, in this case post-harvest burning? A major effort was dedicated to developing a more accurate and practical method of assessing seed crops in individual trees. The final model produced a high degree of predictability (R² = 0.85), …