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Showing 1 to 14 of 14 for “"coastal marsh"”.
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Examining Coastal Marsh Sedimentation In Northeastern North Carolina
Coastal marshes are critical environments that are ephemeral on geologic timescales. Understanding the dynamics that naturally maintain these systems is becoming increasingly important in the face of accelerated sea-level rise. Ceramic tiles, radioisotopes (²¹⁰Pb and ¹³⁷Cs), shoreline mapping, and …
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Modeling the spatial and temporal dynamics of coastal marsh birds
… both broad and fine scales. Northern Gulf Coast marshes are dynamic ecosystems, and they provide an ideal place to examine habitat across spatial and temporal scales. My research focused on the secretive marsh bird guild (i.e. bitterns, rails, gallinules, grebes) with an emphasis on the king rail …
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Quantitative Oil Source-Fingerprinting Techniques and Their Application to Differentiating Crude Oil in Coastal Marsh Sediments
Oil source-fingerprinting is an environmental forensics technique that uses analytical chemistry to determine the origin of oil residues in environmental samples by comparison to a known or suspected source oil. Currently, the only standardized method for oil source fingerprinting is a qualitative …
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Lake Erie coastal marsh aquatic invertebrate community structure across habitats dominated by two different emergent macrophytes
… dominated by <em>Typha spp</em>. in a freshwater coastal marsh. The hypothesis was that aquatic invertebrate diversity and abundance would be greater in <em>Typha</em>-dominated locations as opposed to <em>Phragmites</em>-dominated locations. Sampling took place at Lake Erie Metropark in southeast …
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Detecting Coastal Marsh Change from Aerial Imagery using Spectral and Textural Methods: Pascagoula River Estuary, Mississippi, 1955-2014
<p>As sea level rise accelerates, coastal marsh ecosystems are increasingly vulnerable. Vertical accretion rates must exceed or keep pace with rates of sea level rise to prevent transition to open water or inland migration of marsh vegetation. While some marsh systems along the northern Gulf of …
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Sedimentology and Shallow Groundwater Responses of a Coastal Marsh Along a Salinity Gradient: A Case Study In Grand Bay National Estuarine Research Reserve, Mississippi
… in saltwater intrusion and inundation of coastal marshes. This study investigates factors affecting marsh hydrology, including sediment composition, seasonal variability, and coastal storms in Grand Bay National Estuarine Research Reserve (NERR) near Pascagoula, Mississippi. Analysis of …
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Textural Analysis of Historical Aerial Photography to Determine Change In Coastal Marsh Extent: Site of the Present-Day Grand Bay National Estuarine Research Reserve (GBNERR), Mississippi, 1955-2014
<p>Coastal marshlands are among the world’s most highly productive ecosystems but they have diminished greatly in the past several decades owing to sea-level rise and direct anthropogenic influences. An effective means of quantifying loss or gain in marsh area is through the use of aerial image …
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Storm signatures in coastal ponds and marshes over the late Holocene
Tropical cyclones pose a growing threat to coastal populations, especially as both populations and infrastructure are increasingly concentrated along the eastern coast of the United States. This thesis seeks to characterize the impacts of storms on coastal ponds and marshes along the eastern coast …
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Analysis of Fossil Pollen from a Pleistocene Cypress Forest Preserved on the Northern Gulf of Mexico Continental Shelf
… transition from a baldcypress swamp to more open coastal marsh as marine transgression occurs. During the marsh period in both cores, <em>Alnus</em> becomes a major taxon. This rise in <em>Alnus </em>occurs with high percentages of <em>Taxodium </em>in Core 15DF1, but occurs with high percentages …
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Storm signatures in coastal ponds and marshes over the late Holocene
Tropical cyclones pose a growing threat to coastal populations, especially as both populations and infrastructure are increasingly concentrated along the eastern coast of the United States. This thesis seeks to characterize the impacts of storms on coastal ponds and marshes along the eastern coast …
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Effects of body size on goose behavior: lesser snow goose and Ross's goose
… that both adult and juvenile snow geese from coastal marshes had larger bodies and bills than did those from rice-prairie habitats. Adult snow geese from coastal marshes spent more time feeding than did those in rice-prairies, whereas the opposite was true for juveniles. I conclude that snow …
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The late holocene evolution of coastal wetlands in Argyll, Western Scotland
… on selected sediment cores from four lowland coastal marsh environments in Argyll, Western Scotland. This region of northern Britain has experienced differential crustal uplift and relative sea-level changes throughout the Holocene in response to glacio-isostatic adjustment. The complex …
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Spatial and Seasonal Patterns of Above- and Belowground Vegetation Biomass and Potential Drivers in the Pascagoula River Delta, MS
<p>Coastal wetlands provide a valuable wealth of services to the greater coastal ecosystem and human communities. However, threats such as sea level rise and conservation projects, such as freshwater diversions, have the potential to alter coastal wetlands in different ways. In this thesis, I …
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BEHAVIORAL ECOLOGY OF ORYZOMYS PALUSTRIS (MARSH RICE RAT) IN COASTAL TEXAS: IMPLICATIONS FOR THE LIFE-HISTORY STRATEGY OF BAYOU VIRUS (BAYV)
… non-linear and often extremely complex. The marsh rice rat (Oryzomys palustris Harlan, 1837) is the primary host for the hantavirus genotype Bayou (BAYV; discovered in 1994), the second-most common genotype in N. A. and so far, it is responsible for HPS cases in Louisiana and Texas. O. …