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 20 of 65 for “"native vegetation"”.
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Biological control affects native vegetation and recovery potential in Theodore Roosevelt National Park, North Dakota
This study evaluated native vegetation recovery in areas infested with leafy spurge (Euphorbia esula L.) and treated with the bio-control agent Aphthona spp. and examined in-situ seed bank potential to predict recovery of native species. Extant vegetation and seed bank species richness, diversity, …
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Cheatgrass (Bromus tectorum L.) interactions with arbuscular mycorrhizal fungi in the North American steppe: prevalence and diversity of associations, and divergence from native vegetation
To view the abstract, please see the full text of the document.
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Effects of Amur Honeysuckle (Lonicera maackii [Rupr.] Herder) Invasion and Removal on Native Vegetation and White-Footed Mice (Peromyscus leucopus) in Mixed-Hardwood Forests of Indiana
<p>The threat of non-native invasive species continues to compromise the ecological and economic integrity of our natural resources. Numerous investigators have documented the negative effects of invasive species on native biota. However, much work is still needed with regard to how invasive …
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Transition to an ecologically sustainable landscape – a methodology
… restoration of having detailed maps of original native vegetation before land clearing began, as is the case in South Australia. Coupled with a national commitment to the ‘30-30’ target of COP-15 in 2022, in which nations undertook to dedicate 30% of their landscape to ecosystem protection to …
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Applying numerical sediment transport models to examine river restoration sustainablilty at the Rio Grande Nature Center, New Mexico
… localized, small scale features that promote native vegetation establishment and improve habitat for endangered species without removing flood protection measures. One such feature is the Rio Grande Nature Center (RGNC) Habitat Restoration project. The project consists of removing non-native …
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The dynamics of litterfall in eucalypt woodland surrounding pine plantations
… beyond the confines of plantations, displacing native species and becoming the dominant species in a number of vegetation types. The negative ecological impacts associated with pine plantations now extend well beyond plantation boundaries. While a number of studies have examined the invasion of …
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Prioritizing the Management of Arundo Donax: Recommendations for Removal and Revegetation in California Riparian Habitats
… alters hydrologic regimes, displaces native vegetation, and removes food and habitat for native wildlife. It is widely accepted that removal of this invasive on a watershed scale is critical to restore natural riparian processes and facilitate the reestablishment of native flora and …
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Hydraulic and geospatial analyses of stream engineering and habitat restoration near Los Lunas, NM
… was began when a fire decimated the riparian vegetation in the area, opening the door to the site being overtaken by non-native and invasive species proliferating in the area. The goals of the project were to construct habitat preferential to the endangered species, the Rio Grande silvery …
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Atributos físicos e biológicos do solo sob diferentes condições de uso nas várzeas de Sousa (PB)
… grass cultivation, pomegranate cultivation, and native vegetation) and sample depths (0-10 and 10-20 cm). The biological attributes that were analyzed were microbial diversity (colony forming units), microbial activity (basal respiration) and edaphic macrofauna (Tropical Soil Biology and …
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The effectiveness of urban conservation programs for engaging the public and enhancing wildlife habitat
… associated with urban development often displace native, human-sensitive species and replace them with exotic and human-adapted species. Urban residents also have limited access to natural areas, which may limit public support for conservation. Given these challenges, effectively engaging the …
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Setting the Baseline for Regeneration of Temperate Native Grassy Ecosystems in Montane Agricultural Landscapes: An Agroecological Approach to Soil Health
… baseline through the measurement of a suite of vegetation and soil health indicators will enable long-term ecological monitoring of a regenerative transition on farm. This project employs a descriptive ecological case study to demonstrate how this can be achieved in an impacted montane …
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Setting the Baseline for Regeneration of Temperate Native Grassy Ecosystems in Montane Agricultural Landscapes: An Agroecological Approach to Soil Health
… baseline through the measurement of a suite of vegetation and soil health indicators will enable long-term ecological monitoring of a regenerative transition on farm. This project employs a descriptive ecological case study to demonstrate how this can be achieved in an impacted montane …
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Response of Vegetation and Endangered Waterbirds to Habitat Management Techniques at Kealia Pond National Wildlife Refuge
… Nests were dispersed or randomly spaced within vegetation patches or newly created mudflat habitat. Pickleweed and makai were the dominant vegetation surrounding the nest setting and utilized for nest substrate by Hawai’ian stilts and Hawai’ian coots respectively. Mechanical control treatments …
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Seasonal correlations between Pueraria montana var. lobata and avian species diversity and relative abundance in Hamilton County, Tennessee
Invasive species exist outside of their native ranges and can cause environmental harm where they have been introduced. One such species is kudzu (Pueraria montana var. lobata), an invasive vine in the southeastern U.S. Although kudzu is one of the most common invasive species management concerns …
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Establishing Patterns in Vegetation Associations of the Fountain Darter Etheostoma fonticola in the San Marcos and Comal Rivers of Texas
Aquatic vegetation provides many services for aquatic habitats and fish communities. The Fountain Darter Etheostoma fonticola, found only in spring systems of the San Marcos and Comal rivers in central Texas, is reported to associate with vegetation for feeding, reproduction, and refuge. …
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Potencial influência do uso e ocupação do solo na qualidade da água do rio Abiaí-PB.
… The use map and land cover shows replacement of native vegetation by planting cane sugar, presence of industries and rapid urban growth with little or no planning. This occupation supposedly is responsible for the variation of the parameters of water quality of the river Abiaí. In this way, Thus, …
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The natural enemies of Asparagus asparagoides (L.) Wight in South Africa and their potential for use as biological control agents in Australia
… underground tuber system and can invade native vegetation, two factors that make chemical and/or mechanical control difficult. The fruit is bird dispersed which facilitates colonisation of new sites. Surveys for potential biological control agents for use against bridal creeper in …
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Grazing and Range Management - Alberta
… management have had major impacts on grassland vegetation in Alberta. Grazing animals have had impacts on plant communities in Alberta since before fur traders occupied the land. Over the years both livestock and wildlife have been studied and managed to try and ensure range health, or optimal …
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Blattodea as potential indicators of Peninsula Granite Fynbos restoration following the clear-felling of pine plantations
… currently facilitating the transformation of native vegetation and alien invertebrate invasions. This threat provided a motive for the removal of alien pine plantations from the lower slopes of Table Mountain, with the aim of restoring the currently endangered Peninsula Granite Fynbos …
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An assessment of morphological, physical, chemical, and mineralogical properties of soils derived from volcanic deposits in Rwanda
… and age, and to compare soils under the native vegetation to those under cultivation. The soils are characterized by thick, dark A horizons and dark brown or grayish brown cambic horizons. Organic C is high and is associated with high sodium pyrophosphate extractable aluminum and iron. …
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