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 67 for “"woody plant"”.
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Woody plant richness and landscape preference
Biodiversity serves as a benchmark for healthy ecosystems. Sadly, many of our ecosystems are in danger because of a tremendous loss of biodiversity. Trees play an important role in preserving biodiversity in neighborhood landscapes. The problem is we do not know the extent to which people prefer a …
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Storage Proteins in Apple Trees (Woody Plant, Nitrogen, Senescence)
This study was undertaken to elucidate into the mode of accumulation and subsequent degradation of storage proteins in apple trees. Protein isolation, characterization, and proteolytic enzyme study were involved.
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Evaluation of Screening Techniques for Woody Plant Herbicide Development
Woody plant herbicide screening techniques were evaluated in an attempt to expedite the screening process and decrease amounts of herbicide active ingredient required. Rapid greenhouse screening of woody plant seedlings was performed in less than six months while rapid seed screening was performed …
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Methods for Rapid Screening in Woody Plant Herbicide Development
Methods for woody plant herbicide screening were assayed with the goal of reducing resources and time required to conduct screenings for new products. Past studies have demonstrated reductions in required screening resources (time, amount of herbicide active ingredient, and size of seedlings) can …
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Herbaceous and woody plant establishment across hydrologic gradients in bottomland reforestation sites
Flooding is an important determinant of plant establishment, as well as planted tree survival and growth, in restored floodplain forests. Thus, community assembly in a restored floodplain and, ultimately, restoration outcomes are likely constrained by the site’s hydrologic regime, along with other …
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Some consequences of woody plant encroachment in a mesic South African savanna
… mosaic of vegetation, and also investigates how woody plant encroachment is affecting ecosystem services in Hluhluwe Game Reserve, with a focus on biodiversity, carbon storage and recreation and tourism.
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Effects of non-native woody plant species on shrubland birds of conservation concern
… health and condition. I found that non-native plant species, specifically multiflora rose, negatively associated with shrubland bird occupancy dynamics, especially for Bell’s Vireo and Yellow-breasted Chat. Field Sparrows were found on nearly all shrubland sites I surveyed, and appeared to …
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Microwave-Assisted Extraction for the Isolation of Trace Systemic Fungicides from Woody Plant Material
… isolation of systemic fungicide residues from woody plant tissues.The hallmark of microwave extraction (MAE) is accelerated dissolution kinetics as a consequence of the rapid heating processes that occur when a microwave field is applied to a sample. The current popularity of MAE resides mainly …
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Ecosystem Transformation Across a Changing Social Landscape: Landowner Perceptions and Responses to Woody Plant Encroachment
… of rural livelihoods. A global phenomenon, woody plant encroachment (WPE) has been particularly problematic in the Southern Great Plains of the United States where the actions of private landowners are integral to sustaining grasslands. Increased diversity in landowners’ motivations for …
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Relationships between loblolly pine (Pinus taeda L.) yield and woody plant diversity in Virginia Piedmont plantations
… on loblolly pine (<i>Pinus taeda</i> L.), woody plant diversity, and wildlife habitat quality in Virginia Piedmont plantations 12-14 and 24-27 years of age. The responses of loblolly pine and competing woody vegetation in plantations 12-14 years of age were analyzed at 8 levels of …
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Effect of time from treatment to disturbance on woody plant control with triclopyr, picloram and/or 2,4-D
… Efforts were also made to use target-plant and environmental data to predict chemical efficacy. A combination of triclopyr and picloram at 2 and 1 lb ai/ac, respectively, each gave the best overall control of hardwood brush. The amount of time required to obtain the optimum chemical …
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Composition of the woody plant understory of plateau live oak (Quercus virginiana var fusiformis) clusters in a central Texas savanna
Plateau live oak is thought to act as a nurse plant to other woody species on the Edwards Plateau of central Texas; however, little is known of the nature, extent and duration of this facilitation. In this study, a comprehensive assessment of the composition and abundance of understory woody plants …
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Landscape-Scale Variability in the Composition, Growth and Pattern of Alpine Treeline Vegetation
… and distribution of northern and alpine plant species are predicted to increase and advance upslope and northwards in response to climate warming, particularly across the treeline ecotone. However, responses to warming in the past century have been highly variable, especially in regions …
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Plant Associations of the Edwards, Walnut, and Glen Rose Formations in Hays County, Texas
Vegetation sampling was conducted in plant communities over three geologic formations at the World Wildlife Fund's Pollard Refuge in Hays County, Texas. Woody vegetation was sampled using the point-centered quarter method, whereas herbaceous components were sampled by a quadrat method. Correlations …
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A cross sectional comparison of chemical treatment on plant biodiversity at Neudamm farm, Khomas region
… the impacts of chemical application on plant biodiversity in comparison to the control ecosystems over a three-year period at Neudamm farm in Khomas Region, Namibia. In this study, for herbaceous plant sampling, a total of 40 (1m2) quadrats were randomly laid in each of the three …
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Spatial and temporal dynamics of plants colonizing species-poor hedgerows
… the spatial and temporal distributions of plant species in recent hedgerows in close proximity to remnant ancient woodland seed sources, and evaluates immigration, colonization and establishment processes that occur at this interface. Transects were used to sample plant species …
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The effects of habitat change on bird diversity and community structure in a mesic Savanna landscape
… a break in the disturbance regime could promote woody plant encroachment. Though this might lead to an increase in habitat heterogeneity, the effects on biodiversity could be positive or negative. Habitat heterogeneity, in this context, can refer to vegetation variability or complexity at a range …
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Understanding pattern-process relationships in a heterogeneous landscape effects of large termitaria on diversity and disturbance regimes in Miombo woodlands of Northern Zimbabwe
… termitaria, which can be hotspots of both plant (primary) productivity and animal abundance (secondary and tertiary productivity). To investigate the modulating influence of spatial heterogeneity in the form of large Macrotermes termitaria on woody plant and avian diversity in the face of …
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