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 32 for “"Mudflat"”.
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The resilience of biofilm on an intertidal mudflat
… the resilience of biofilm on an intertidal mudflat following a physical disturbance. Over the last decade the presence and importance of biofilm on intertidal mudflats has been a focus of scientific research as biofilm has been shown to play key physical and ecological roles in mudflat …
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The environmental and photo-physiological control of microphytobenthos primary production on an intertidal mudflat
… of field surveys conducted on Hythe intertidal mudflat, Southampton Water. The ecological and photo-physiological responses of microphytobenthos to changes in physical factors were studied in the field and in controlled laboratory experiments. Results from a weekly sample program at four …
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An Avian Botulism Epizootic Affecting a Nesting Site Population of Presbyornis : on a Carbonate Mudflat Shoreline of Eocene Fossil Lake
… lake regression, which exposed the carbonate mudflat, killed aquatic invertebrates, and enhanced the incubation of <em>C. botulinwn</em> within the decaying invertebrates. The exposed mudflat accumulated eggshell fragments and a few bones, as neurotoxins killed a large number of …
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The influence of a petrochemical discharge on the bioturbation and erosion potential of an intertidal estuarine mudflat (Humber estuary, UK)
… The main study was carried out on the Saltend mudflats near Hull, with sites at various distances from the outfall being used. A further set of control sites on the adjacent, and largely unaffected, mudflat at Paull were also used.In terms of the sediment properties, sites closest to the …
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Herbivore movement and spatial population dynamics in a heterogeneous landscape
… [Bromus inermis], native non-host grasses, or mudflat). First, using a mark-recapture study in networks of experimental cordgrass patches that were made identical in size, isolation, and plant quality, I found that the interpatch movement rate of the planthopper was highest in the brome matrix, …
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The influence of macrofauna on intertidal sediment stability and biogeochemical properties.
… properties. A series of manipulative in situ mudflat studies at Breydon Water, Great Yarmouth, UK investigated the effect of biodiversity on selected biogeochemical sedimentary properties related to mudflat sediment stability including the sediment erosion threshold and relative erosion rate, …
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Investigating the physical and ecological drivers of change in a coastal ecosystem: from individual to population scale impacts.
… of important habitats including intertidal mudflat and non-tidal saline lagoon. The two main themes of the thesis are 1) assessing the physical and ecological factors that determine benthic invertebrate abundance, distribution and community structure, which is examined at the scale of the …
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Depositional Environments and Diagenesis of the Devonian Dawson Bay Formation in Saskatchewan and Northwestern Manitoba
… in environments that ranged from saline- and dry-mudflat to distal alluvial-eolian plain, and that the dolostone formed in a Coorong-like environment. New evidence indicates that the SRBM was affected by pedogenesis, with the paleosol better developed in central Saskatchewan than in southeastern …
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The effect of hydroperiod on seed banks in semi-permanent prairie wetlands
… species densities. The mean relative density of mudflat annuals in all seed pool samples was significantly greater in wetland P4 (82%) than in P1 (52%). A shorter hydroperiod in this wetland produces more frequent drawdowns and a greater input of mudflat annual seeds. Conversely, seeds of …
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Paleogeography and Paleoenvironments of the Lower Unit, Fossil Butte Member, Eocene Green River Formation, Southwestern Wyoming
… (2) marginal lacustrine, (3) carbonate mudflat, and (4) marginal fluvio-deltaic. The open lacustrine facies is characterized by kerogen rich to kerogen poor finely laminated micrites , that consist mainly of calcite and very little dolomite. These carbonates contain well preserved fossil …
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Intertidal Seagrass Meadows in South West England: The Ecology of Expansion
… England, have undergone a shift from unvegetated mudflats to dense perennial seagrass habitat. Yet despite the increasing prevalence of intertidal seagrass meadows in the South West, there are large knowledge gaps relating to intertidal meadow biodiversity, function and ecosystem service …
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Ecology of the infauna of Spurn Bight mudflats : an area proposed for reclamation
… infauna of Spurn Bight, an extensive area of mudflats in the outer Humber Estuary, internationally important for wildfowl and subject to land reclamation proposals, was studied in the form of a short term extensive survey of the wole area followed by a year long intensive study of the dynamics …
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The Vascular Flora of Boyle County, KY
… calcareous sub-xeric forest, depression pond/mudflat, dry limestone cliff/outcrops, riparian forest, wet prairie/meadow, and one rare state-listed plant community, the shale/siltstone glade. Five rare species with state rankings were discussed: American chestnut (<italic>Castanea …
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A System-Level Analysis of Migratory Shorebird Habitat Use, Diet, and the Influence of Climate-Driven Ecosystem Change in the Virginia Barrier Islands
… imperiled shorebird species in the understudied mudflat habitats of the coastal lagoon behind the barrier islands, and 2) to examine how a changing climate may impact red knots by altering barrier island habitats and the invertebrate prey that sustain them during migration. I compared habitat use …
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Fine-grained sedimentation on the Chenier Plain Coast and inner continental shelf, northern Gulf of Mexico
… for deposition of fine-grained sediment. Mudflat accretion is proposed to depend upon the presence of an unconsolidated mud sea floor immediately offshore, proximity to a fluvial sediment source, onshore winds, which generate waves that resuspend sediment and advect it shoreward, and a low …
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Fine-grained sedimentation on the Chenier Plain Coast and inner continental shelf, northern Gulf of Mexico
… for deposition of fine-grained sediment. Mudflat accretion is proposed to depend upon the presence of an unconsolidated mud sea floor immediately offshore, proximity to a fluvial sediment source, onshore winds, which generate waves that resuspend sediment and advect it shoreward, and a low …
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Effect of exposure on the erodibility of intertidal mudflats
… Sediments were collected from an intertidal mudflat in the Firth of Thames, New Zealand in different seasons from 2017 to 2019 for laboratory experiments. Two experiments (Exp. 1 and Exp. 2) were set up in order to explore the effect of exposure including air temperature and exposure duration …
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Paleoenvironments of the Eocene Green River Formation (Laney Member) in the Anvil Wash area, Southwestern Wyoming
… into the lake by sheet flooding on fringing mudflats.</p> <p>Evidences for rapid sedimentation in an oxygenated lake include excellent preservation of fish, coprolites, conchostracans and undisturbed, laminated sediments. Rapid sedimentation of laminae would be expected to occur during sheet …
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Marine offshore to alluvial plain transitions within the "Chemung"-Hampshire interval (Upper Devonian) of the southern central Appalachians
… facies or into low-energy subtidal to supratidal mudflat facies. The absence of beaches and tidal channels is indicative not only of low tidal ranges, but also of seaward dissipation of wave-energy within a very shallow intracratonic foreland basin. The easternmost sections of the Hampshire …
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Facies and provenance analysis of the Midcontinent Rift System (MRS) in Kansas
… different facies associations (fluvial, eolian, mudflat/lake margin, lacustrine, alluvial fan, and fan delta). Overall, the studied succession comprises continental deposits laid down dominantly in alluvial and eolian settings, with the intermittent development of lacustrine systems. Three rift …
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