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 “"pollination biology"”.
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Pollination Biology of Gentianales in a Southern Ecuadorian Montane Forest
The pollination and reproductive biology of mostly small flowered, taxonomically related species of the monophyletic order Gentianales (Apocynaceae including Asclepiadoideae, Gentianaceae, and Rubiaceae) was investigated in a tropical montane forest in southern Ecuador. This study is part of an …
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Pollination biology of four co-occurring Erica species from the Cape Peninsula, South Africa
… genus Erica. Speciation studies that focus on pollination biology often use floral syndrome characters to predict a species' functional pollinator group/s. The predictive power of these techniques has come under scrutiny, and hence in-situ observations have become highly important for …
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Pollination Biology of <i>Ailanthus altissima</i> (Mill.) Swingle (Tree-of-Heaven) in the Mid-Atlantic United States
… little information has been collected on the pollination biology of <i>Ailanthus altissima</i> (Mill.) Swingle (tree-of-heaven), an invasive exotic in the U.S. This study was conducted to determine the insect pollinator fauna visiting <i>A. altissima</i> and to study general pollinator …
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The pollination biology of Haskap (Lonicera caerulea L.: Caprifoliaceae): floral traits and pollinator performance of a new Saskatchewan fruit crop.
… very little is currently known about its pollination biology, including associated pollinators and important floral characteristics. My research compared the pollinating performance of three groups of bees on Haskap: commercial Apis mellifera and Osmia lignaria, and wild Bombus spp. I …
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The Reproductive biology of Erica pudens
… a diverse range of floral morphology and pollination systems. Even though it is such a diverse genus, there is minimal research examining the pollination biology of specific species. This research inspects the pollination biology of Erica pudens. To do this we carried out pollinator …
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Intraspecific competition in Leucadendron xanthoconus (O.Knutze) K. Shun
… of intraspecific competition vary? Does the pollination biology of dioecious, sexually dimorphic species influence niche partitioning?
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Ecology and Molecular Phylogenetics of <i>Hydnora</i> (Hydnoraceae) in Southern Africa
… presents novel data regarding the pollination biology, germination ecology, parasite-host nutritional relationships, and the molecular systematics of this group. Experimental addition of the primary pollinator, <em>Dermestes maculatus</em> to <em>Hydnora africana</em> chamber …
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A taxonomic study of Sorocephalus and Spatalla
… a few months after germination. Studies on the pollination biology of the genus led the author to conclude tha.t Promerops cafer (the Cape Sugar bird) and three species of sunbird, Anthobaphes violacea, Nectarina famosa and Cinnyris chalybeus were the most important pollen vectors. Certain …
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Causes of rarity in glade-endemic plants: Implications for responses to climate change
This dissertation documents the relationship between stress-adaptation and reproductive specialization in three endemic plant species: Delphinium treleasei, Echinacea paradoxa, and Scutellaria bushii) that are locally abundant but restricted to stressful habitats and their closely-related …
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Evolution of the genus Aristolochia - Systematics, Molecular Evolution and Ecology
… arranged as ‘cryptically simple’. Trapped! Pollination of Aristolochia pallida Willd. in the Mediterranean A first study of the pollination biology of a Mediterranean Aristolochia species in its natural habitat is presented. 183 flowers of Aristolochia pallida were investigated, which in …