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 “"Plant-soil feedback"”.
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Plant-Soil Feedback and Perennial Forage Systems
Plant-soil feedback (PSF) is the process by which plants influence the survival and growth of other plants through effects on the soil and its biota. Understanding how PSF and management practices interact to influence native species persistence is critical for sustainable perennial forage systems. …
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Invasive lespedeza cuneata and its relationship to soil microbes and plant-soil feedback
… has lead to increased frequencies of exotic plant invasions, which can reduce biodiversity and lead to extinction of native species. Physical traits that increase competitive ability and reproductive output encourage the invasiveness of exotic plants. Interactions with the soil microbial …
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Plant Species and Soil Type Effects on Root Characteristics, Microbiota and Plant-soil Feedback Responses in Four Prairie Species
… form a relationship with a multitude of host plants that is estimated to include 70-90% of terrestrial plant species over a wide range of environments. AMF and other microbiota, as well as abiotic factors are an important component of plant-soil feedback systems. The effects of plant species …
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Effects of soil nutrient availability on the development of tropical monodominance and subordinate species composition in montane forests
… for harbouring some of the highest levels of plant diversity in the world, natural areas occur where a single tree species dominates the forest stand. The presence of these monodominant forests therefore represents an unusual and intriguing phenomenon. Several studies over the past 30 years …
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Host Specificity, Negative Feedbacks, and Pathogen Defense in the Plant Phyllosphere Microbiome
My dissertation research spans several topics in plant microbial ecology. In two research projects, I have explored whether host specificity influences fungal endophyte community structure in plant leaves across several ecotypes of switchgrass (Panicum virgatum) and across 19 plant species within …
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Biogeochemical effects of an invasive grass across a land-use gradient: linking alterations of nitrogen cycling to depleted soil carbon pools
… invasion ecology is that the effects of invasive plant species depend on spatial context. Therefore, to predict how the functioning of invaded systems will change across spatially heterogeneous landscapes, there is a need to understand the mechanisms underlying the effects of invasive plants and …
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Feedback by the soil microbial community on the distribution of two weeds
Soil microbial communities may influence the composition and species abundance of plant communities through the phenomenon of “soil feedback,” which is the tendency of a plant species to cause physical, chemical and/or biological changes in the soil that are beneficial or detrimental to its own …
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Ectomycorrhizal associations in tropical montane forest: insights into their influence on nutrient cycling and functional responses to soil fertility
… root tips collected from four sites across a soil fertility gradient. There was a high compositional turnover in the EM fungal communities associated with Oreomunnea with a significant effect of soil fertility on EM fungal compositional variation. In addition, analysis of the phylogenetic beta …
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Effects of plant invasions on ecosystem processes: Linking above- and below-ground resource-use strategies of native and invasive species in Eastern U.S. forests
… Here I investigated above- and below-ground plant traits and soil properties associated with resource-use strategies and soil nitrogen (N) dynamics for multiple native and non-native forest understory species in the Eastern U.S. to better understand invader impacts on ecosystem processes. In …