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 46 for “"Invasive plant species"”.
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Solarization as a means to eliminate invasive plant species and target the seedbank
… system has changed dramatically in both its species composition and hydrodynamic regime due to years of human influences. What was once a thriving population of native plant species has become an environment dominated almost completely by aggressive exotic invasive species. The goal of this …
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Distribution of Invasive Plant Species on Debris Cones at Mount Rainier National Park
<p>Invasive plant populations within Mount Rainier National Park are a biological and ecological threat to the unique mountain landscape. A better understanding of their distribution and transport within the landscape is needed to improve invasive species monitoring for National Park Service …
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A reevalution of Tennessee’s invasive plant species using SERNEC and Maximum Entropy species distribution models
The detection and monitoring of invasive plant species present tremendous challenges to land managers. To reduce the economic and environmental costs associated with developing management plans for invasive plants, organizations such as the National Invasive Plant Council work to rank invasive …
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Ethnobotanical survey of problem weeds, alien invasive plant species and their roles in Nzhelele, Makhado Local Municipality, Limpopo Province, South Africa
Background: Problem plants and alien invasive weed species are part of today‟s ecological transformation. Ethnobotanical literature on ecological prominence and ethical values of problem alien weeds is scant and should be documented to avoid loss of valuable species. Aim: The study was aimed at …
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Quantifying the Expansion of an Invasive Plant Species, Dog-strangling Vine (Vincetoxicum rossicum), in Environmental and Geographic Space Over the Past 130 Years
Invasive plant species are an increasing global threat to native biodiversity. Effective management depends on accurate predictions of their spread. However, modelling the geographic distribution of invasive species, particularly with methods like correlative species distribution models (SDMs), is …
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Changes in Wetland Conditions and Wetland Plant Communities in the Prairie Pothole Region After 50 Years
… to assess changes in wetland conditions and plant communities within wetland zones in the Prairie Pothole Region. In 1961-1966, Robert E. Stewart and Harold A. Kantrud conducted a study to investigate the relationship of wetland plant communities to variations of water permanence and …
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Social Investigation of Management Approaches to Effectively Control Scotch Broom (Cytisus scoparius) Invasion in the Sooke Region of Vancouver Island, BC
Invasive plant species, particularly Scotch broom (Cytisus scoparius), pose significant threats to biodiversity and ecosystem services on Vancouver Island by obstructing native plant restoration and elevating wildfire risks. This study investigates social perspectives on management strategies for …
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Documenting plant biodiversity at the EMU-owned Parsons Center for Arts and Sciences
<p>We present the first vascular plant species checklist for the Eastern Michigan-University-owned property called the Parsons Center for Arts and Sciences. A voucher for each plant species has been deposited in the Eastern Michigan College herbarium and collection data is digitized in the …
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The ecology and control of typha capensis in the wetlands of the Cape flats, South Africa
… growth, production and decomposition of the species in a Cape Flats wetland. The process of invasion by indigenous species rather than by alien species is discussed and the view that wetlands are threatened by mismanagement rather than by encroachment per se is examined. Finally, control …
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The Effects of Invasive Plants on Biodiversity Across Spatial Scales
<p>Although introduced plant species are often considered to be one of the most notable anthropogenic threats to biodiversity, their influence on biodiversity remains controversial. Some studies have shown large declines in biodiversity in plant-invaded areas, whereas others have noted that plant …
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A Bear's Eye View: Insight on American Black Bear (Ursus americanus) Hibernation and Foraging Ecology in Virginia's Central Appalachian Mountains
… white-tailed deer (Odocoileus virginianus) and invasive plant species. We identified 178 unique diet items to family, genus, or species in videos, much higher numbers than previously reported in the literature, and we found high diet overlap between sexes. Diet composition was primarily …
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The effects of invasive knotweed (Fallopia japonica) on invertebrate communities in western New York
… Ranse-Decraene) is one of the most aggressive invasive plant species. It shades out and displaces native plants by forming thick, fast-growing thickets and may also affect invertebrate communities. By impacting invertebrate communities, knotweed can disrupt animals across the food web, causing …
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Design & analysis of a parallel drive spherical rotation mechanism for application in high tech farming robots
… identify and eliminate harmful insects and invasive plant species in agricultural settings. We focus specifically on the design and control of a parallel drive spherical rotation mechanism capable of manipulating a miniaturized steam jet ejector along the surface of a sphere. The jet ejector …
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Assessing the potential of mixed grazing goats with beef cattle to improve animal performance and increase the utilization of marginal pasturelands in the Appalachian coal region
… are underutilized partly due to an increase in invasive plant species, such as multiflora rose (Rosa multiflora Thunb. Ex Murr.), autumn olive (Elaeagnus umbellata Thunb.), and sericea lespedeza (Lespedeza cuneata (Dum.-Cours.) G. Don). The steep topography and low economic returns from beef …
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Differential Canopy Leaf Flushing and Site Nitrogen Status Facilitate Invasive Species Establishment in Temperate Deciduous Forest Understories
<p>Invasion by nonnative species is considered one of the greatest threats to ecosystem structure and function worldwide. In the temperate forests of the northeastern United States invasive plant species frequently establish and colonize edge environments; however, they are not confined to these …
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Ways of Monsoon Air: Entanglements and Stories of Matter, Space, and Time
… chapters. They are about the winter haze, an invasive plant species and the question of the death of monsoonal time – amidst a range of linkages and materials. The work is very interdisciplinary and gathers a variety of methods and approaches in engaging and deepening an understanding of the …
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Evaluation of Bioherbicidal Properties of Pseudomonas syringae pv. tagetis for Control of Canada thistle (Cirsium arvense)
… family Asteraceae) is a particularly aggressive invasive plant species that is problematic in Canadian agriculture. It can be particularly challenging for organic farmers, as it cannot be eliminated using methods like tillage, due to its ability to regrow using adventitious shoots from root …
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THE BIOGEOGRAPHY OF Ageratina adenophora: A MEXICAN TRANS-GLOBAL INVADER
… Jeffrey Gritzner Co-Chairman: Dr. Ragan Callaway Invasive plants are a global problem often resulting in negative impacts upon populations of native plants and the environments in which they grow. Invasive plants inhibit native species and take over areas where they have been introduced. These …
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THE BIOGEOGRAPHY OF Ageratina adenophora: A MEXICAN TRANS-GLOBAL INVADER
… Jeffrey Gritzner Co-Chairman: Dr. Ragan Callaway Invasive plants are a global problem often resulting in negative impacts upon populations of native plants and the environments in which they grow. Invasive plants inhibit native species and take over areas where they have been introduced. These …
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