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 10 of 10 for “"prairie remnants"”.
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Role of seed mixes, biochar soil amendment, and the soil seed bank in improving Palouse Prairie restoration
<p>The Palouse Prairie Ecoregion of Eastern Washington and Idaho is critically endangered. Eastern Washington University (EWU) has begun a ~120 acre campus prairie restoration; however, there is considerable uncertainty about the most effective restoration approach. Annual seeds and soil organic …
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Insect Conservation Within the Severely Fragmented Eastern Tallgrass Prairie Landscape
… insects within the severely fragmented tallgrass prairie ecosystem. In one study, insects were surveyed within natural area remnants and developed habitats in an attempt to gauge levels of remnant-dependence for 17 prairie and savanna-inhabiting taxa. In a second study, plant and insect data were …
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Genetic structure of Pseudoroegneria spicata in the Northern Palouse Prairie and Channeled Scablands
… seed mixes. It is abundant in remnant prairies of the endangered Palouse Prairie ecoregion, which is characterized by rolling hills of deep loess soil. Less than 1% of native Palouse Prairie is left, due to agricultural conversion, with remnants highly fragmented and isolated. P. …
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Wild bee responses to land use change: investigating the role of bee body size
… In Chapter 1, I examined tallgrass prairie remnants and restorations across eastern Kansas and found that both types of prairie hosted a similar abundance, diversity, and body size of trap-nesting bees over both study years. The bee community composition differed between prairie …
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Evaluation of shrub removal effects on understory richness and diversity in a native grassland
Tallgrass prairie is a highly endangered ecosystem in North America, and woody plant encroachment is one of the leading stressors facing prairie remnants. Insights into factors that predict vulnerability and resistance to invasion and information concerning the most effective treatment combinations …
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Moving the needle on prairie conservation: a Palouse Prairie restoration/reconstruction needs assessment and the effect of intra-annual soil moisture changes on Balsamroot seedling establishment
<p>The Palouse prairie of Eastern Washington and Western Idaho is one of the most endangered ecosystems in the United States. After 140 years of intensive agriculture, less than 1% of prairie habitat remains, making Palouse prairie conservation and restoration a critical need. This study sought to: …
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Remnant assessment and soil inoculation to inform large-scale prairie restoration at Eastern Washington University
<p>The Palouse Prairie of Eastern Washington and Western Idaho, characterized by rolling hills of deep loess soil, is one of the most endangered ecosystems in the world, with more than 99% converted to tilled farmland. To mitigate this loss, Eastern Washington University has begun prairie …
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Earthworm dynamics in tallgrass prairies in the Ozark Highlands region of northwest Arkansas
<p>Tallgrass prairie was a historic and is presently a unique and endangered natural ecosystem throughout the Ozark Highlands region in the mid-southern United States. Tallgrass prairies have been disturbed for agricultural production and/or urban expansion; thus, as a result, efforts have been …
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Vegetation structure and inferred patterns of functional group attrition in a shrub encroached old field and tallgrass prairie mosaic
Tallgrass prairie is an endangered ecosystem and encroachment by woody species threatens many remnants. Insights are needed into the differences in diversity and species and functional group composition along a gradient of woody encroachment to help gauge restoration potential and gain insights …
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When do propagules matter? The role of ecological filters and regeneration dynamics during community assembly in tallgrass prairie restorations
… species on community assembly during tallgrass prairie restoration. In the first study, patterns in the abundance, richness, and diversity of seed and bud banks were quantified across an 11-year chronosequence of restored prairies and in prairie remnants to elucidate the degree to which the …