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 9 of 9 for “"transplant experiment"”.
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Climatic specialisation: an explanation for the range size and distribution of bryophytes on a tropical island elevational gradient
… ecophysiological specialisation using reciprocal transplant experiments, along with direct laboratory measurements of species' responses to desiccation and temperature. In these experiments I use species restricted to low, mid or high elevation, as well as widespread species found along most of …
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Influence of site and soil type on the distribution of anthrax infectious sites and the contribution of anthrax to elephant mortality in Ethosha National park, Namibia
… on the persistence of B. anthracis, a reciprocal transplant experiment was conducted at three experimental sites across ENP following the rainfall gradient in which soil cores were spiked with a virulent B. anthracis strain. Sampling was done over 12 months to determine the persistence of the …
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LAND USE LEGACY REGULATES MICROBIAL COMMUNITY STRUCTURE AND FUNCTION IN TRANSPLANTED CHERNOZEMS
… topography and hydrology. A long-term soil transplant experiment located at the Agriculture and Agri-Food Canada (AAFC) Research Center in Lethbridge, AB provided a unique opportunity to study the long-term effects of agriculture management practices on various soil types, independent of …
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Influence of increased sediment exposure on suspension-feeder assemblages in a temperate seagrass meadow
… In Chapter 4, a short-term laboratory experiment was combined with a field transplant experiment to investigate the response of suspension feeders to increased sediment exposure. Under elevated sediment exposure, Herdmania momus and Pinna bicolor modulated their particle selection to …
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Limitations of savanna trees in the highveld grasslands of South Africa
… may exclude trees from grasslands. A seedling transplant experiment of savanna tree species of the Acacia genus, into grassland and savanna areas arranged across an altitudinal gradient, was used to compare growth in these varying climates over one growing season, and the influence of frost on …
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An Investigation of the Factors that Facilitate and Inhibit the Range Expansion of an Invasive Plant
… space. More than a century of observational, experimental, and theoretical work investigating the factors that drive species distributions have demonstrated the importance of the interactions between abiotic, biotic, and demographic factors in determining why species are found where they are. …
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A landscape approach to forecasting climate change impacts on geographic ranges and phenologies of plants in the Washington Cascades
… Park. We combined data from a large-scale transplant experiment and a multi-year observational study using a spatial population model. We found that the ranges of these two closely related and ecological similar species responded very differently to changes in climate, and we forecast that …
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The influence of Microhodotermes viator nest density and dispersion on ecological processes
… sites across a rainfall gradient, in situ experimentation in Van Riebeeck Park (Worcester), and greenhouse experiments at the University of Cape Town. Novel findings include the quantification of termite faecal matter (frass) on heuweltjies and the associated enrichment in Worcester, and …
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Determining the potential drivers of invasive C4 grasses at De Hoop Nature Reserve, South Africa
… colonisation of fynbos by C4 grass, I set up a transplant experiment designed to examine the extent to which topographic position along a slope (moisture availability), an increase in nutrient availability and a decrease in competition for resources influences the establishment and growth of C4 …