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 221 for “"Pollinators"”.
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Planning for Pollinators, Encouraging Biodiversity for Agriculture Resiliency
<p>Pollinators are essential to food production globally. Without them, the production of food becomes increasingly difficult, time consuming, and costly. Unfortunately, due to the rapid changes to our earth's physical and climatic structure millions of species are becoming classified as …
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Hard-wired for success? Unravelling genomic signatures in pollinators
Global decline among bumblebees shows strong evidence of phylogenetic structure, with the subgenus Pyrobombus over-represented among stable/range-expanding species. Based on this striking pattern, a hypothesis was drawn up suggesting that Pyrobombus species have acquired advantageous traits that …
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Systems to Attract and Feed Pollinators in Warm-Season Lawns
… nutrition to pollinating insects. The benefit to pollinators confirms another potential ecosystem service of turfgrasses in both urban and rural environments. </p>
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BEES IN THE WOODS: SPRING ORCHARD POLLINATORS USE FOREST CANOPY POLLEN
… the orchard. Within Andrena, effective orchard pollinators, we found that male bees were restricted to the forest, and thus suggest that forests may be important in order to conserve these species in agricultural systems. Finally, we explore how pulsed "mast-bloom" events leave signatures on …
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Pollinator conservation and access to pollinators on an urban-rural gradient
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-15 without embargo terms
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Social and ecological dimensions of supporting wild pollinators in tropical smallholder farms
… influence the availability of habitat for wild pollinators in tropical smallholder farming landscapes. The dissertation consists of three data chapters from independent investigations, combining a global systematic review and meta-analysis with social and ecological fieldwork in western Kenya. …
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Wildflowers in Working Landscapes: Establishment Methods and Impacts on Pollinators and Cattle
… for the ecosystem services provided by pollinators. Prior research has shown that creating wildflower plots in agricultural contexts is a promising avenue to provide pollinators with habitat. However, several questions remain regarding how these plots interact with grazing systems in …
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Extending Plant-Plant Facilitation Theory to Pollinators: Do Desert Shrubs Act as Magnets?
… 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 hypothesis …
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Impacts of shared pollinators and community composition on plant-pollinator interactions and their fitness consequences
… of the consequences of this reliance on shared pollinators on the structure of plant-pollinator interaction networks, the foraging decisions of pollinators, and the fitness outcomes of plant species. Through several comprehensive field studies, I contribute to our understanding of mutualist …
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Impact of Spatial Distance and Pollinators on Floral and Fruit Bacterial Communities of Solanum carolinense
… and environmental gradients and the role of pollinators in shaping floral bacterial communities among natural populations of Solanum carolinense. There have been limited studies on how spatial distance influences bacterial communities found in and on fruit tissue and the role of pollinators …
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An Assessment of Non-Apis Bees as Fruit and Vegetable Crop Pollinators in Southwest Virginia
Declines in pollinators around the globe, notably the loss of honey bees (Apis mellifera L.) to Colony Collapse Disorder, coupled with a dearth of quantitative data on non-Apis bee pollinators, led to this dissertation research, which documents the role of non-Apis bees in crop pollination in …
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Improving the urban ecology of northern Waller Creek through citizen implemented green infrastructure to benefit pollinators
… successful green infrastructure that supports pollinators; 2. Understand obstacles and motivating factors for stakeholders who wish to implement pollinator-focused green infrastructure; 3. Provide guidance to help people implement successful green infrastructure that supports pollinators and …
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Responses of Arthropods to Fire and How Pollinators and Pollination Services Are Affected by Fire Severity
… impact on fruit set, especially early-season pollinators.</p>
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Manipulating Flowering Times and Site Attractiveness To Pollinators To Improve Yield and Fruit Quality in Strawberry
… than the other cover types, despite excluding pollinators. Interrow ground cover had no significant effect on the number of visits to strawberry or diversity of native pollinators in either year. Native bee species showed different peak visitation times over the growing season from both years. …
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The Effects of Insecticides on Squash Bug, its Egg Parasitoids and Pollinators in Virginia Cucurbit Production
… on squash bugs, its egg parasitoid, and pollinators in the production of cucurbits in Virginia. Plants in the cucumber family are dependent on insect pollination for successful fruit set, and are also susceptible to plant eating insects. Squash bugs are capable of transmitting cucurbit …
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Prairie dogs, plants, and pollinators: tri-trophic interactions affect plant-insect floral visitor webs in shortgrass steppe
… insect floral visitors, including native pollinators. By altering vegetation, prairie dogs influence plant-pollinator networks in shortgrass steppe.
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