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 20 of 450 for “"tree species"”.
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Spectral Separability among Six Southern Tree Species
… differentiability among six major forestry tree species, loblolly pine (Pinus taeda), Virginia pine (Pinus virginiana), shortleaf pine (Pinus echinata), scarlet oak (Quercus coccinea), white oak (Quercus alba), and yellow poplar (Liriodendron tulipifera). Data were smoothed using both moving …
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Ecology and evolution of invasive maple tree species
… has thus been devoted to the study of invasive species, which in tum has shown to provide valuable insights on ecological and evolutionary processes regulating species coexistence. A proper test of mechanisms promoting invasions requires nonetheless the use of a biogeographical approach between …
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The Ecology of Invase tree species in Singapore
Invasive species have been recognized as one of the main threats to biodiversity. Invasive trees, however, are relatively understudied compared to other taxa, especially in Tropical East Asia. This study was conducted on invasive trees in Singapore: an ideal study site for tree invasions in …
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Water sourcing by riparian tree species in ephemaral rivers
… resources on which riverine vegetation depends. Trees and shrubs are the most common life forms along these river systems, because surface flows are too erratic for aquatic organisms to flourish. There is concern that alterations to the current water regime of ephemeral rivers will affect the …
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Effects of gibberellin on seedlings on nine forest-tree species
Thesis (M.S.)--Michigan State University of Agriculture and Applied Science. Dept. of Forestry, 1958
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Modelling spatial turnover patterns in tree species diversity for conservation
… they underpin. Understanding how communities of species vary across space and the factors that drive such variation is essential to predicting the impacts of human and climate-induced changes on biodiversity and ecosystem services. This knowledge can be used to plan conservation areas that …
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Impact of climate change on extinction risk of montane tree species.
The potential impacts of climate change on many species worldwide remains unknown, especially in those tropical regions that are centers of endemism and are highly biodiverse. This thesis provides an insight into the extinction risk of selected tree species using different species distribution …
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Interactions among tree species and pathogen-suppressive bacteria in tropical forest soils
… mortality of seedlings close to parent trees. Pathogens interact with a myriad of other organisms in soil that have the potential to moderate plant disease and in turn its effects on community composition. Studies that consider interactions among microbial groups in the context of …
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Tree species identification in an urban environment using a data fusion approach
1 PDF file (viii, 98 pages)
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Fusion Approaches to Individual Tree Species Classification Using Multi-Source Remotely Sensed Data
Tree species information plays essential roles in urban ecological management and sustainable development, and thus tree species classification has been an active research topic over the years. This study investigated fusion approaches deployed with Support Vector Machine (SVM) and Random Forest …
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The effect of soil nutrient availability on resource allocation in tropical tree species
Tropical tree communities are diverse in both their taxonomic composition and in their functional strategies for resource use and acquisition. Soil resources influence productivity of tropical forests and the distributions of tree species across edaphically heterogeneous landscapes. My dissertation …
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Radical Growth and Water Balance of Three Tree Species in East-Central Illinois
Made available in DSpace on 2014-12-09T22:25:45Z (GMT). No. of bitstreams: 1 6604298.pdf: 5896563 bytes, checksum: b16366f37d1e8264d0f9fd01b3995192 (MD5) Previous issue date: 1965
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