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 11 of 11 for “"Native Bee"”.
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A GIS-Based Landscape Scale Model for Native Bee Habitat
Through pollination, bees are responsible for the persistence of many biological systems on our planet. Bees have also been used for thousands of years in agriculture to improve crop quality and yield. Recently, there have been declines in honeybees worldwide. This decline is concerning because it …
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Aspects of Foraging in Bees: Apple Pollination, Native Bee Populations, and Honey Bee Communication
Bees are well known for their ability to pollinate a diverse range of plants. In the process of gathering food (pollen and nectar), bees transfer pollen from one flower to another, facilitating reproduction. I investigate two important aspects of foraging: pollination of an important crop by native …
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Bees, Bombs, and Burns: Disturbance and the Native Bee Communities of Military and Other Public Lands in Virginia
… which can support diverse communities of native plants and animals. These lands may serve as refugia, protecting rare, threatened, and endangered species that may have disappeared from surrounding areas, particularly those that need disturbance to survive on the landscape. This is …
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Evaluation of native bee nesting rates and beetle community assemblages in the presence of clothianidin in the soil of natural areas
… of the common neonicotinoid clothianidin, on native bee and beetle communities in restored prairie settings. For native bees, we found that nesting probability and nesting abundance increased in sites contaminated with clothianidin. Conversely, we did not see differences in beetle family …
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Diversity and Abundance of Bees in Canadian Prairie Agroecosystems: Understanding the Role of Remnant and Restored Habitat in Supporting Native Bee Populations
… intensification has negative implications for native bee communities throughout Western Canada. Wetland remnants are a common feature within the Prairie Pothole Region of Saskatchewan and are threatened due to continued conversion to agricultural land. Approximately sixty-one million acres of …
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Conserving Pollinators: An Interdisciplinary Approach to Evaluating the Ecological, Economic and Cultural Value of Native Bees in Mid-Atlantic Sustainable Agriculture
… and evaluate the opportunities and challenges to native bee conservation in Mid-Atlantic sustainable agriculture. I censused sustainable agriculture farms to assess the diversity of bees in different habitats and collected and identified over 3100 individuals representing five families, 26 genera …
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A Hive Mind: Bounded Rationality and Bees
Bees (Anthophila) are experiencing global decline as part of what is being called the Anthropocene extinction. In addition to the drivers of this event, such as climate change, bees are experiencing synergistic challenges from pesticides, poor nutrition, pathogens, and parasites. Bees play a …
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Pollinator People: an ethnography of bees, bee advocates and possibilities for multispecies commoning in Toronto and London, ON
… species are in decline around the world. Bees are the most important pollinators in many parts of the world, and the combination of population declines in wild bees and widespread health problems among domesticated honey bees have potentially devastating impacts on both ecosystem health …
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Manipulating Flowering Times and Site Attractiveness To Pollinators To Improve Yield and Fruit Quality in Strawberry
… the growing season. Proportion fruit set and native pollinator visitation observations were made. Statistics were performed in R using mixed linear models. My results showed that plug propagules produced significantly higher marketable yields than the other treatments through the season. …
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Habitat variation effects on cavity-nesting bee fitness, community assemblages, and parasite interactions in the Colorado Front Range
… little is known about their effects on native solitary bee fitness. This is an important knowledge gap, as most bees in the western US are solitary and are crucial for pollination in forested ecosystems. Therefore, I test how wildfire and forest management treatments affect …
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Planning for Pollinators, Encouraging Biodiversity for Agriculture Resiliency
… insects such as <em>Aphis mellifera </em>(honeybee) and other native species. This is due to a phenomenon known as colony collapse disorder (CCD) and other native bees. The decline indicates that the future habitability of earth may be in jeopardy. The solution to this crisis is to expand the …