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 11 of 11 for “"tree distribution"”.
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Influence of tree planting guidelines on street tree distribution along bus corridors
… experience and environmental resilience, as street trees can significantly reduce urban heat island effects and enhance the comfort of bus users. This study examines how municipal tree planting regulations influence street tree density along bus routes in 15 U.S. cities. Analysis of street …
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The influence of perch tree distribution and abundance on bald eagle distribution on the northern Chesapeake Bay, Maryland
… feed and loaf on shoreline perches. I measured trees suitable for bald eagle perches along the northern Chesapeake Bay during 1990-1991 to determine the influence of shoreline perch tree availability on bald eagle distribution. The shoreline was divided into 250 x 50 m segments. A segment was …
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Flight Activity, Oviposition Pit Distribution, and Emergence Densities of Monochamus titillator and M. carolinensis in the Ozark-St. Francis National Forest in Arkansas
… known as pine sawyers. They have a worldwide distribution coincident with pines (Pinaceae) and are vectors of the pinewood nematode (Bursaphelenchus xylophilus). In the United States, there are eight known Monochamus species and they have a sympatric distribution with at least one other …
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Ecology, behavior, impact, and an integrated pest management strategy for the orangestriped oakworm, Anisota Senatoria (J. E. Smith), in the urban landscape
… examined through ecological studies of within-tree distribution and dispersion, and the influence of a tree growth regulator on development and survival. Biological characteristics examined egg mass size and development, pheromone attraction, response to blacklight traps, adult emergence, …
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Dynamics of two South African floodplain forests
… of riparian forests in Africa, especially tree regeneration requirements, community level patterns and water relations. The major determinants of tree distribution have yet to be fully elucidated for many riverine systems, particularly in tropical areas, and the potential consequences of …
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Optical distribution networks : signal-to-noise ratio optimization and distributed erbium-doped fiber amplifiers
… erbium-doped fiber amplifiers in optical distribution networks are analyzed. We investigate the optimal allocation of gain and loss among the stages of a lumped amplifier chain, using the concepts of a Nash solution and Pareto optimality. The propagation of optical channels along an …
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Estimating directed information to infer causal relationships between neural spike trains and approximating discrete probability distributions with causal dependence trees
… quantity, applicable to arbitrary probability distributions. It is interpreted in terms of prediction, communication with feedback, source coding with feed forward, control over noisy channels, and other settings. It is also shown to be consistent with Granger's philosophical definition. The …
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Predicting suitable areas for cultivation and conservation of the baobab tree and investigating superior sources of planting material
The baobab tree (Adansonia digitata L.), with more than 300 uses and commercial value in EU and US, has been identified as one of the most important edible savannah trees to be conserved, domesticated and valorised in Africa. A decline in baobab populations due to overexploitation and/or changes in …
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Understory Composition, Seedling Growth, and Snag Frequency Across a Water-Limited Forest Landscape
… chapter was to determine how snag (standing dead tree) distribution is affected by individual- and stand-level biotic and abiotic variables. I used an unmanned aerial vehicle to collect images of forest canopies and determine the position and characteristics of individual live and dead trees. I …
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Exploring the potential impacts of global change on the woody component of of South African savannas
… which is also implicated as a driver of tree cover increases. Climate change is predicted to directly drive species range shifts in savannas, however several important gaps exist in the literature which prevent the development of a clear predictive framework to describe these changes. …
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Spatial Pattern Analysis of Tree Species Distribution in a Central Appalachian Upland Heath Barren
… we characterized the spatial pattern of three tree species distributions in the upland heath barrens on Cabin Mountain in Canaan Valley, West Virginia through fieldwork, statistical modeling, and the use of geographical information systems (GIS). The research objectives were to: 1) quantify the …