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.
Results
Showing 1 to 20 of 12141 for “"Plant"”.
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Plant-plant and plant-insect interactions: Direct and indirect effects of plant neighbors
… herbivory acted synergistically in depressing plant growth (height, diameter, and vegetative mass) and reproduction (reproductive mass and time of flowering). In several experiments, competition and herbivory had a negative synergistic effect on reproductive mass, vegetative mass, and diameter …
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Effects of plant viral pathogens on plant-pollinator relationships
… that virus infection triggers changes in host plants that render them more attractive to pollinators. This builds on previous work, which showed that in tomato Cucumber mosaic virus (CMV) infection enhanced emission of volatile organic compounds (VOCs) that attracted bumblebees and enhanced …
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Ecology of plant-animal interactions during plant population expansion processes
Plant-animal interactions are crucial for maintaining ecosystem functionality and biodiversity. Ecological research has shown that these interactions can be modified in different contexts, affecting natural dynamics. Currently, significant changes in the landscape, such as rural abandonment or the …
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Dissecting the role of plant immunity in plant-aphid interactions
… phloem-feeding insects that cause loss in plant productivity worldwide. This occurs through the removal of photoassimilates and the vectoring of hundreds of plant viruses. Plants possess a complex immune system in order to defend themselves from a range of pathogens including bacteria and …
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Understanding the Impact of Plant Nutrition on Plant-Oomycete Interactions
Plants are surrounded by various threats from the environment such as pathogens, abiotic stresses, and animal attacks. Nutrient content and distribution are essential for plant growth and development as well as plant immunity. Pathogens extract nutrients from host plants to benefit their own growth …
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Linking Plant and Soil Microbial Diversity via Plant Functional Trait Ecology
Plant–microbe interactions are central to ecosystem functioning, yet our understanding of how plant diversity relates to soil microbial diversity remains rudimentary. Cover crops are increasingly promoted for their potential to enhance soil health and microbial diversity in agroecosystems, but …
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Spatial models of plant diversity and plant functional traits : towards a better understanding of plant community dynamics in fragmented landscapes
… I identified key questions on the response of plant diversity and plant functional traits to variations in species' dispersal capability, habitat fragmentation and local environmental conditions. All questions were addressed using spatially explicit simulations or statistical models. In chapter …
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Consequences of plant population size for pollinator visitation and plant reproductive success
… have a prominent role in determining the size of plant populations, and can affect plant-pollinator interactions. It is hypothesized that in small plant populations the ability to set seeds can be reduced due to limited pollination services, since individuals in small populations can receive less …
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Modeling Inter-plant Interactions
… paper is to examine the interactions between two plant species endemic to Florida and develop a model for the growth of one of the plant species. An equation for the growth of Hypericum cumulicola is developed through analyzing how the distance to and the height of the nearest Ceratiola ericoides …
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First, Plant Your Feet
Short story collection
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First, Plant Your Feet
Short story collection
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The visual arts plant
… building. I call this building The Visual Arts Plant. The Visual Arts Plant contains the rooms, equipment, machinery, tools, instruments, and fixtures necessary to facilitate and promote a visual arts education. This thesis is a documentation of my ideas for The Visual Arts Plants.
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Extending Plant-Plant Facilitation Theory to Pollinators: Do Desert Shrubs Act as Magnets?
The magnet hypothesis proposes that flowering plants that attract pollinators can increase the relative pollination rates of neighbouring plants. The principal objective of this thesis was to 1) systematically review the theoretical and methodological trends in pollinator facilitation and magnet …
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Effects of Local Plant Neighborhood on Plant Herbivory in Perennial Polyculture Cropping Systems
… Perennial cropping systems allow for complex planting arrangements (e.g. crop frequency, intercrops, and row spacings) that could confer specialist insect pest resistance via reduced host plant apparency, changes in herbivore attraction, and host plant tissue quality. The three chapters in …
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Rooting microbes in plant adaptation: The evolution of locally adaptive plant-microbe interactions
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-12-04 without embargo terms
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Design of a coordinated plant control system for a marine nuclear propulsion plant
Thesis (Nucl. E.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering; and, (M.S.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1981.
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