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 7 of 7 for “"nesting resources"”.
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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
… agricultural matrices and may act as important nesting and floral resources for many native bee taxa. The purpose of this study was to determine whether conserved habitats, such as wetlands and field margins, in highly cultivated landscapes support native bee and pollinator diversity, which is …
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Evaluating Competition Between Sympatric Flying Squirrels (Glaucomys Spp.) In Northeastern Minnesota
… two species and could indicate competition for nesting resources, although they may also reflect underlying variation in habitat availability between zones of allopatry and sympatry. Chapter 3: Activity patterns of animals represent tradeoffs between competing factors, such as energetic costs, …
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Floral abundance and soil characteristics affect wild bee community structures and nesting dynamics in tallgrass prairies
… species, such as floral community structure and nesting resources are examined in this study. Floral resources and bee communities are usually positively correlated within ecosystems due to their mutualistic interactions. The interactions between flowers and bees are important in maintaining the …
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Death by a thousand cuts: the role of pesticides, predators, and habitat patch characteristics on wild bee and insect communities
… mechanisms such as access to floral and nesting resources. However, recent sub-community studies have described important, yet inconsistent, top-down effects on bees. In Chapter 2, I simultaneously evaluate the roles of top-down and bottom-up forces on bee communities and foraging …
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The impacts of habitat fragmentation of Tsitsikamma fynbos, South Africa, on avian nectarivore presence, abundance, and pollination
… food, along with a lack of adequate habitat and nesting resources, can reduce the abundance of pollinators which, in turn, may result in reduced seed-set for the plant species that rely on them. This study considers how selected erica and protea plants and the sunbirds and sugarbird that …
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BEES AND WASPS IN A CHANGING ENVIRONMENT: MULTIPLE RESPONSES TO ANTHROPISED LANDSCAPES
… traits (social, polylectic, above-ground nesting). The predicted effects on morphology, physiology and behaviour at the intra-specific level were instead formalised in a dedicated opinion paper. With field observations, microscopy techniques, histological observations, and chemical and …
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Ecology of stingless bees (Apidae, Meliponini) in lowland dipterocarp forests in Sabah, Malaysia, and an evaluation of logging impact on populations and communities
… studies on resource use (3.1, 3.2, 3.3) and nesting biology (3.4) as well as comparative studies on stingless bee diversity and abundance in logged and unlogged lowland rainforest sites (4.1, 4.2). Stingless bees proved to be generalist foragers that used a large range of plant species as …