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 14 of 14 for “"plant-pollinator interactions"”.
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Multi-faceted analyses of plant-pollinator interactions: From ecological communities to individual foraging decisions
… fully understood without the direct and indirect interactions it has with the rest of its community and environment. Therefore, it is crucial to understand how behavior and species interactions influence ecosystems at multiple scales – from ecosystem functions to individual decisions. I provided …
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Impacts of shared pollinators and community composition on plant-pollinator interactions and their fitness consequences
… other have always captivated biologists. These interactions—predation, competition, parasitism, and mutualism—are fundamental to the stability of ecological communities and drive the evolution of species they contain. Some mutualistic systems consist of mutually dependent partners that strongly …
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The Role of Continuous Flowering Phenology for in Neotropical Plant-Pollinator Interactions for Use in Conservation
<p>The diversity of mutualistic interactions in the Neotropics exceeds that of all other tropical regions and is posited to result from a unique assemblage of plant species that produce the highest spatio-temporal predictability of food resources. A rare component of the Neotropical flora that …
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General flowering in an asesonal tropical forest : plant reproductive phenology and plant-pollinator interactions in a lowland dipterocarp forest in Sarawak
本文データは平成22年度国立国会図書館の学位論文(博士)のデジタル化実施により作成された画像ファイルを基にpdf変換したものである
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Variation in pollination across a fragmented landscape at the Cape of Africa
… of established conservation areas to conserve plant-pollinator interactions. The study area was the species rich, but highly fragmented West Coast Lowlands of the Cape of Africa. I focused on the Nectarinia sunbird pollination system and the oil-collecting Rediviva bee pollination system. …
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Understanding the role and impact of introduced honey bees in a submontane indigenous forest ecosystem
… impacts, both positive and negative, on native plants and flower visitors in native ecosystems. This research aimed to investigate the impact of managed introductions of Apis mellifera in native forest dominated by Weinmannia racemosa and Ixerba brexioides, two native forest trees used …
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Biotic and Abiotic Drivers of Plant-Pollinator Interaction Rewiring
In this dissertation, I examine variation in plant-pollinator interaction patterns. I present two observational studies exploring drivers of interaction variation, followed by an experiment in which I demonstrate the effect of changing plant-pollinator interactions. First, I use a structural …
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Plant-flower visitor interactions in the Sacred Valley of Peru
The structural organisation of species-rich plant-pollinator networks is important to understanding their ecology and evolution and is essential for making informed conservation and restoration decisions. This thesis reports on a study located at different altitudes in nine tributary valleys of the …
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Pheromones, nectar, and computer vision: investigating large-scale patterns of chemodiversity.
… and which allow natural products to mediate interactions across biological scales. Chemodiversity is a major component of functional biodiversity in all ecosystems, and in plant - insect interactions especially mediates mutualisms, antagonisms, defense, reproduction, and many more …
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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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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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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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Mechanisms of bullseye boundary formation in Hibiscus trionum petal patterning
… ornamentation. These patterns contribute to plant-pollinator interactions but how spatial control of cell fate specification is achieved across the petal epidermis remains obscure. Hibiscus trionum is an emerging model system producing flowers with a striking bullseye pattern on the adaxial …
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Effects of systemic fungicides on floral attributes, pollination and fruit aroma in strawberries
… these difficulties, farmers use high-efficient plants and perform pest management, including the use of fungicides. These Fungicides contain one or more active ingredients on which they are categorised, regulated, and approved for organic or conventional farming. Despite the usefulness of …