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 53 for “"sedge"”.
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Sedge/Grass Meadow Restoration on Former Agricultural Land: Analysis of Establishment Success
Sedge/grass meadow wetland restoration was conducted at three study sites located in about 4 ha of agricultural land recently acquired by New York State Department of Environmental Conservation (NYSDEC) adjacent to West Creek at its confluence with Braddock Bay in Hilton, Monroe County, New York. …
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Coastal sedge/grass meadow restoration in a peri-urban wetland via alteration of environmental filters: can hydrological constraint be trumped?
… extent and richness of Lake Ontario shoreline sedge/grass meadows that they no longer conform to an historic trajectory. These conditions are not likely to change in the foreseeable future, so novel actions may be required to support their preservation. This research investigated the combined …
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Fuel moisture and fuel dynamics in woodland and heathland vegetation of the Sydney Basin
… range of fire regimes. Sclerophyllous shrubs and sedges are common and in some vegetation types up to 70 % of fuel consumed during a fire can be live. Research into fire behaviour and fuel dynamics has been minimal. To address this issue this thesis investigated the principal factor affecting the …
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Ecological Drivers of Plant Community Composition in a Patterned Fen at Seney National Wildlife Refuge, Michigan
… water tracks, strings, flarks, and ponded sedge lawns. Additionally, several morphometric parameters were calculated using GIS and communities were analyzed using multivariate techniques. Ordinations reveal variation within and between landform types related to moisture and chemical …
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Landscape and environmental controls on soil organic matter decomposability in the High Arctic
… SOC mineralisation rates in the High Arctic. Wet sedge (WS) soils had significantly higher SOC decomposability than mesic tundra (MT) and polar desert (PD) soils. Further evaluation of soils under dominant High Arctic plant types: Salix arctica Pall (SA), bare ground mats (BGM) and moss identified …
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Factors associated with Atlantic white -cedar seedling recruitment on microtopographic and landscape scales, Brown Mill Pond, Rye, New Hampshire
… were (1) absent from hummocks with tussock sedge substrate and present on hummocks with moss or litter substrate, (2) most frequent 10--25 cm above the July water table, at "intermediate" elevations, and were less common between 25--60 cm on these hummocks.</p><p>Several multi-factor field …
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Plant Associations of the Edwards, Walnut, and Glen Rose Formations in Hays County, Texas
… with an understory of little bluestem, cedar sedge, curly mesquite, and dropseeds. The Walnut clay was dominated by Texas oak and Ashe juniper and a poorly developed understory composed mainly of cedar sedge, dichanthelium, and woody plant seedlings. The Glen Rose limestone was dominated by …
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Forage Potential of Seasonal Wetlands
… [Scolochloas festucacea (Willd.) Link], slough sedge (Carex atherodes Spreng.), burred (Spargnaium eurycarpum Engelm.), and smartweed (Polygonum amphibium L. var. emersum Michx.) at intervals during the growing seasons of 1984 and 1985. Concurrent measurements of the total nonstructural …
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The status and distribution of rails and other marsh birds in natural and restored wetlands in northern Indiana
… exilis), Marsh Wren (Cistothorus palustris) and Sedge Wren (Cistothorus platensis). Data were also collected on all other species of marsh-nesting birds detected during this study.Rails exhibited a patchy distribution. A total of 25 Soras, 33 Virginia Rails, and 1 King Rail was detected in …
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Beaver as drivers of hydrogeomorphic and ecological processes in a mountain valley
… by Carex utriculata and C. aquatilis forming sedge-dominated communities on wet sites and early successional grasses such as Critesion jubatum and Agrostis scabra forming grasses-dominated communities on dry sites. Willow and aspen seedlings were found throughout the beaver meadow, suggesting …
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Local and Regional Aspects of Habitat Quality Jointly Affect the Biodiversity of Ephemeral Ponds
… and hardwood forest) and the leaf species (sedge, pine, or maple) present in artificial ponds. Ponds were open to colonization by amphibians and aquatic insects during the summer of 2010. We surveyed organisms in the ponds on a monthly basis and did a complete census of each pond at summer's …
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Systematics of the Leafhopper Subfamily Deltocephalinae (Hemiptera: Cicadellidae) and the Tribe Chiasmini: Phylogeny, Classification, and Biogeography
… internal branches. Nearly all of the grass/sedge specializing tribes were resolved in one relatively derived clade, and it appears that grass or sedge feeding was lost at least twice in this clade. Chapter 3 provides a history of the classification of Deltocephalinae over the past 60 years, …
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Culture War Commonalities: Personal Appearance in Commonwealth England
The swift social, political, and religious changes that encompassed England’s Civil Wars, and later the Puritan-dominated Commonwealth, during the seventeenth-century led to a surge of moralist literature, published during a period with little to no press censorship. Against a backdrop of social …
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Spatial and Seasonal Patterns of Above- and Belowground Vegetation Biomass and Potential Drivers in the Pascagoula River Delta, MS
… in a quadratic fashion, similar to coastal sedge and grass species in previous studies. My findings are valuable to understanding the status and resilience of the lower Pascagoula River, as well as the ability of <em>S. lancifolia</em> (a dominant fresh-brackish water marsh species) to …
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Phytoremediation of nitroglycerin in smokeless powders
… with oats (Avena sativa) or planted with live sedge plants (Carex vulpinoidea). In addition, composted biosolids were used as a soil treatment. Mesocosms were sampled at 7, 14, 30, and 60 days after initial planting. Determination of residual NG in the samples was performed using gas …
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Periglacial Geomorphological Mapping of the Comanche Peak Area . Mummy Range, Larimer County, Colorado
… 10,400 ft. (3120 m). Krommholz, salix , grasses, sedge, and a variety of wild flowers are the dominant vegetation. All landforms are developed in Precambrian granites, gneiss, and schist of Precambrian X (between 2500 m.y. - 1600 m.y.) and Y (between 1600 m.y. - 900 m.y.) ages. Most of the study …
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Characterization Of Phosphorus, Nitrogen, And Sulfur Concentrations In A Paired Disturbed And Natural Wetland In Northwest Minnesota
… the disturbed cattail marsh and undisturbed sedge meadow showed increased concentrations of SRP, Eh, and pH. This indicates that Caribou WMA is a low nutrient ecosystem and suggests that Skull Lake WMA has become a phosphorus sink. Correlation between distance to State Ditch 84 and …
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Ecological influences in the biogeography of the Austral sedges
… geographical and ecological distribution of the sedge tribe Schoeneae in conjunction with its inferred speciation history in order to determine the pattern of dispersal and the environmental factors that have influenced establishment. The biogeographic reconstruction indicates numerous …
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The ecology of the mosquito Culex modestus, a potential vector of West Nile virus in the UK
… be found in narrow, shallow ditches, containing sedge vegetation and aquatic vegetation. They were more common in warmer waters with a neutral to alkaline pH and a high level of total dissolved solids (TDS). In 2016, Cx modestus was found to occupy two new Locations outside of Kent, in Essex …
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