You searched for subject:(Coastal wetlands).
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York University
1.
Hoskin, Grace Nicole.
Cladoceran Subfossils as indicators of ecosystem responses to multiple stressors in Lake Ontario (Canada) Coastal Wetlands.
Degree: MSc -MS, Geography, 2020, York University
URL: http://hdl.handle.net/10315/37781 
► This thesis explores the use of Cladocera (Branchiopoda, Crustacea) subfossil remains preserved in sediment cores as potential ecological indicators of wetland health in three coastal…
(more)
▼ This thesis explores the use of Cladocera (Branchiopoda, Crustacea) subfossil remains preserved in sediment cores as potential ecological indicators of wetland health in three
coastal wetlands of Lake Ontario (Canada). Great Lakes
coastal wetlands are crucial for supporting wildlife and filtering pollutants and sediments from water. As watershed development intensifies, anthropogenic stressors impacting wetland health since European settlement in ~1850 remain a fundamental concern. Subfossil Cladocera were analyzed in McLaughlin Bay (Oshawa), Cootes Paradise (Hamilton), and Jordan Harbour (Lincoln). Subfossil Cladocera assemblage changes, particularly decreases in the abundances of littoral taxa, appeared to track declines in aquatic macrophyte coverage resulting from invasive carp, high turbidity, and poor water quality. Some evidence of recent ecosystem recovery was evident in Jordan Harbour, but not in McLaughlin Bay or Cootes Paradise. Overall, paleolimnological approaches can provide a historical context to guide future management and restoration of Great Lakes
coastal wetlands.
Advisors/Committee Members: Korosi, Jennifer (advisor).
Subjects/Keywords: Limnology; Paleolimnology; Cladocera; Great Lakes coastal wetlands; Coastal wetlands; Wetlands; Subfossils; Carp; Conservation; Wetland remediation
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APA (6th Edition):
Hoskin, G. N. (2020). Cladoceran Subfossils as indicators of ecosystem responses to multiple stressors in Lake Ontario (Canada) Coastal Wetlands. (Masters Thesis). York University. Retrieved from http://hdl.handle.net/10315/37781
Chicago Manual of Style (16th Edition):
Hoskin, Grace Nicole. “Cladoceran Subfossils as indicators of ecosystem responses to multiple stressors in Lake Ontario (Canada) Coastal Wetlands.” 2020. Masters Thesis, York University. Accessed April 15, 2021.
http://hdl.handle.net/10315/37781.
MLA Handbook (7th Edition):
Hoskin, Grace Nicole. “Cladoceran Subfossils as indicators of ecosystem responses to multiple stressors in Lake Ontario (Canada) Coastal Wetlands.” 2020. Web. 15 Apr 2021.
Vancouver:
Hoskin GN. Cladoceran Subfossils as indicators of ecosystem responses to multiple stressors in Lake Ontario (Canada) Coastal Wetlands. [Internet] [Masters thesis]. York University; 2020. [cited 2021 Apr 15].
Available from: http://hdl.handle.net/10315/37781.
Council of Science Editors:
Hoskin GN. Cladoceran Subfossils as indicators of ecosystem responses to multiple stressors in Lake Ontario (Canada) Coastal Wetlands. [Masters Thesis]. York University; 2020. Available from: http://hdl.handle.net/10315/37781
Tulane University
2.
Keogh, Margaret.
Accretion, compaction, and restoration: Sediment dynamics and relative sea-level rise in coastal wetlands.
Degree: 2019, Tulane University
URL: https://digitallibrary.tulane.edu/islandora/object/tulane:92021
► [email protected]
Over the past two centuries, coastal wetlands have become increasingly threatened by accelerated relative sea-level rise and anthropogenic modification. Engineered structures such as sea…
(more)
▼ [email protected]
Over the past two centuries, coastal wetlands have become increasingly threatened by accelerated relative sea-level rise and anthropogenic modification. Engineered structures such as sea walls, levees, and drainage systems prevent natural processes of sediment distribution, reducing the resilience of coastal ecosystems. Land subsidence and shoreline erosion combine with global sea-level rise to make low-elevation coastal zones increasingly vulnerable to submergence. This dissertation examines processes of sediment accumulation, compaction, and relative sea-level rise in coastal wetlands and assesses strategies for restoration. I find that organic content strongly controls sediment compaction in wetland sediments. At least 80% of compaction happens quickly, largely within the first 100 years after deposition and in the top 1 m of the subsurface. This rapid shallow compaction is generally not recorded by traditional methods of measuring relative sea-level rise in low-elevation coastal zones (i.e., tide gauges and global navigation satellite systems). As a result, tide gauges generally underestimate rates of relative sea-level rise in low-elevation coastal zones and these areas may be at a greater risk of flooding than previously realized. However, despite accelerated rates of relative sea-level rise and rapid sediment compaction, coastal restoration efforts such as river diversions can be successful in building new land in some areas. I find that sediment deposition responds non-linearly to water discharge, reaching a maximum at moderate discharge. Wetlands are more likely to keep up with relative sea-level rise if hydrodynamic conditions are optimized to retain mineral sediment in targeted restoration areas.
1
Margaret Keogh
Advisors/Committee Members: Kolker, Alexander (Thesis advisor), Törnqvist, Torbjörn (Thesis advisor), School of Science & Engineering Earth and Environmental Sciences (Degree granting institution).
Subjects/Keywords: Coastal wetlands; Sediment compaction; Mississippi Delta
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APA (6th Edition):
Keogh, M. (2019). Accretion, compaction, and restoration: Sediment dynamics and relative sea-level rise in coastal wetlands. (Thesis). Tulane University. Retrieved from https://digitallibrary.tulane.edu/islandora/object/tulane:92021
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Keogh, Margaret. “Accretion, compaction, and restoration: Sediment dynamics and relative sea-level rise in coastal wetlands.” 2019. Thesis, Tulane University. Accessed April 15, 2021.
https://digitallibrary.tulane.edu/islandora/object/tulane:92021.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Keogh, Margaret. “Accretion, compaction, and restoration: Sediment dynamics and relative sea-level rise in coastal wetlands.” 2019. Web. 15 Apr 2021.
Vancouver:
Keogh M. Accretion, compaction, and restoration: Sediment dynamics and relative sea-level rise in coastal wetlands. [Internet] [Thesis]. Tulane University; 2019. [cited 2021 Apr 15].
Available from: https://digitallibrary.tulane.edu/islandora/object/tulane:92021.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Keogh M. Accretion, compaction, and restoration: Sediment dynamics and relative sea-level rise in coastal wetlands. [Thesis]. Tulane University; 2019. Available from: https://digitallibrary.tulane.edu/islandora/object/tulane:92021
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Michigan
3.
Vogel, Kate.
Reclaiming the Shiawassee Flats: Monitoring During Hydrologic Restoration of the Shiawassee Flats Ecosystem.
Degree: MS, School for Environment and Sustainability, 2020, University of Michigan
URL: http://hdl.handle.net/2027.42/154780
► In 2016, the US Fish and Wildlife Service (USFWS) completed the restoration of two new wetland units: Maankiki North (MN, opened in 2017) and Maankiki…
(more)
▼ In 2016, the US Fish and Wildlife Service (USFWS) completed the restoration of two new
wetland units: Maankiki North (MN, opened in 2017) and Maankiki South (MS, opened in
2018) at the Shiawassee National Wildlife Refuge near Saginaw, Michigan. The Refuge
sought to reconnect these units, formerly farmland, to the dynamic hydrology of the
Shiawassee River, mimicking the function of this area’s historic floodplain complex.
In early 2019, staff at the Shiawassee National Wildlife Refuge asked for support from
students attending the University of Michigan School for Environment and Sustainability
(SEAS) to aid in post-restoration monitoring of the biological conditions in the recently
restored Maankiki units and Pool 1A, a wetland unit hydrologically reconnected to the
Shiawassee River in 1958. Sampling in 2019 would complement pre-restoration research
previously done by UM groups. Sampling techniques were modeled after the Great Lakes
Coastal Wetland Monitoring Program and were used to create protocols to guide future
studies. This report, organized by the abiotic and biotic factors investigated, represents the
culmination of our team’s research.
Water Quality describes the chemical, physical, and biological parameters used to measure
the tolerance of the wetland units’ biological communities.
● Water quality varies by month, distance from the water control structure, vegetation
type, and unit.
● Dissolved oxygen decreased throughout the season to levels unsafe for fish, likely due
to warming temperatures.
● In the future, water quality monitoring should more closely reflect the GLCWMP
methods, focus on nutrient testing, and more data collection from the Shiawassee
River and Spaulding Drain.
Vegetation identifies and compares the plant communities within and among wetland units
and uses their diversity and abundance to evaluate wetland health.
● Calculations of importance values and dissimilarity indices show decreasing diversity
from Maankiki South to Pool 1A to Maankiki North, which has a high abundance and
density of invasive Typha.
● The Floristic Quality Assessment and Index of Biotic Integrity scored Maankiki South
as ‘Medium Quality.’ Degradation increased from MS to Pool 1A to MN.
● Future research recommendations include the continued implementation of our
monitoring protocol, managing the units’ flood duration and frequency to mimic the
natural flow regime, and the harvesting of Typha biomass.
Macroinvertebrates catalogs and compares indicator insect families in response to each
unit’s water quality, vegetation types, and monthly variation. ● Communities changed throughout the summer following standard life-cycle trends.
● The majority of families found are known to be tolerant to the water quality
conditions common to
wetlands, such as high turbidity and low DO.
● Future management recommendations include the continued implementation of our
monitoring protocol, the use of an elutriator while sampling, identifying individuals
to genera, and more closely and accurately…
Advisors/Committee Members: Alofs, Karen (advisor), Seelbach, Paul (committee member).
Subjects/Keywords: Shiawassee; wetlands; Coastal Restoration; Biological Monitoring
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APA (6th Edition):
Vogel, K. (2020). Reclaiming the Shiawassee Flats: Monitoring During Hydrologic Restoration of the Shiawassee Flats Ecosystem. (Masters Thesis). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/154780
Chicago Manual of Style (16th Edition):
Vogel, Kate. “Reclaiming the Shiawassee Flats: Monitoring During Hydrologic Restoration of the Shiawassee Flats Ecosystem.” 2020. Masters Thesis, University of Michigan. Accessed April 15, 2021.
http://hdl.handle.net/2027.42/154780.
MLA Handbook (7th Edition):
Vogel, Kate. “Reclaiming the Shiawassee Flats: Monitoring During Hydrologic Restoration of the Shiawassee Flats Ecosystem.” 2020. Web. 15 Apr 2021.
Vancouver:
Vogel K. Reclaiming the Shiawassee Flats: Monitoring During Hydrologic Restoration of the Shiawassee Flats Ecosystem. [Internet] [Masters thesis]. University of Michigan; 2020. [cited 2021 Apr 15].
Available from: http://hdl.handle.net/2027.42/154780.
Council of Science Editors:
Vogel K. Reclaiming the Shiawassee Flats: Monitoring During Hydrologic Restoration of the Shiawassee Flats Ecosystem. [Masters Thesis]. University of Michigan; 2020. Available from: http://hdl.handle.net/2027.42/154780
Texas A&M University
4.
Entwistle, Clare Teresa.
Estimating Net Gains and Losses of Coastal Wetlands in Galveston County and Cameron County, TX.
Degree: MS, Water Management and Hydrological Science, 2016, Texas A&M University
URL: http://hdl.handle.net/1969.1/158946
► Coastal wetlands serve many important ecological services. One of these important ecological services is there use as storm buffers. Coastal wetlands provide habitat for migratory…
(more)
▼ Coastal wetlands serve many important ecological services. One of these important ecological services is there use as storm buffers.
Coastal wetlands provide habitat for migratory birds and aquatic species and can improve water quality. In the late 1990s, the US Fish and Wildlife Services published a study outlining the trends of
coastal wetlands from the 1950s to early 1990s. In this thesis, wetland gains and losses are calculated for Galveston County and Cameron County between 2001 and 2011. Maps from the National Land Cover Database were used to determine wetland areas for the years 2001, 2006, and 2011. ArcGIS was used to compare land cover between the study periods to determine overall wetland losses and gains. A statistical analysis was performed between wetland loss and population data to determine if increased population density lead to a higher loss of
wetlands. Our analysis indicates that
wetlands loss is still occurring; however, at a lower rate of loss (0.14% -0.18% annually) than the USFWS study predicted earlier (2.7%). In addition, the majority of wetland losses were because of conversion to upland areas. We found a positive correlation between increased population density and decreased wetland area; however, the trend was not significant. This present study shows how the majority of wetland loss in Galveston and Cameron County is occurring as a result of increased upland areas. In addition, the study shows that the use of online mapping systems can be used as a low-cost alternative to assess land changes when field tests are not feasible.
Advisors/Committee Members: Mora, Miguel (advisor), Giardino, John R (committee member), Knight, Robert (committee member).
Subjects/Keywords: wetland gains; wetland losses; coastal wetlands; Texas
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APA (6th Edition):
Entwistle, C. T. (2016). Estimating Net Gains and Losses of Coastal Wetlands in Galveston County and Cameron County, TX. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/158946
Chicago Manual of Style (16th Edition):
Entwistle, Clare Teresa. “Estimating Net Gains and Losses of Coastal Wetlands in Galveston County and Cameron County, TX.” 2016. Masters Thesis, Texas A&M University. Accessed April 15, 2021.
http://hdl.handle.net/1969.1/158946.
MLA Handbook (7th Edition):
Entwistle, Clare Teresa. “Estimating Net Gains and Losses of Coastal Wetlands in Galveston County and Cameron County, TX.” 2016. Web. 15 Apr 2021.
Vancouver:
Entwistle CT. Estimating Net Gains and Losses of Coastal Wetlands in Galveston County and Cameron County, TX. [Internet] [Masters thesis]. Texas A&M University; 2016. [cited 2021 Apr 15].
Available from: http://hdl.handle.net/1969.1/158946.
Council of Science Editors:
Entwistle CT. Estimating Net Gains and Losses of Coastal Wetlands in Galveston County and Cameron County, TX. [Masters Thesis]. Texas A&M University; 2016. Available from: http://hdl.handle.net/1969.1/158946
University of Plymouth
5.
Powell, Paula Angele.
The effects of hydrology and nutrient inputs at South Milton Ley on the ecology of the common reed Phragmites australis (Cav. Trin. ex Steudal).
Degree: PhD, 2000, University of Plymouth
URL: http://hdl.handle.net/10026.1/2061
► South Milton Ley is a small coastal wetland in Southern England. A sand-bar forms periodically at its seaward end and separates fresh water from the…
(more)
▼ South Milton Ley is a small coastal wetland in Southern England. A sand-bar forms periodically at its seaward end and separates fresh water from the sea. The common reed Phragmites australis dominates the wetland and when a sand bar is present a shallow freshwater lake forms. Monthly water budgets were prepared for the years 1994, 1995 and 1996 and intermittent flooding of the Ley was also monitored. This information was used to calculate a range of residence times (between one hour and eleven days) and the characteristics of various flow regimes when the sandbar, which dams the Ley, is open or closed. Reed growth and the lake's ecology are potentially influenced by effluent from a sewage treatment works (STW) that discharges into the wetland. Water chemistry and hydrology of the wetland have been studied alongside experiments to investigate any effects of nutrient enrichment from the STW on reed growth. Inflowing and outflowing waters were analysed in order to determine concentrations of total oxidised nitrogen (TON), total dissolved nitrogen (TDN), soluble reactive phosphorus (SRP), total dissolved phosphorus (TDP) and potassium (K). Over the study period the annual load of SRP to the Ley increased from 3.65 gmˉ² aˉ¹ in 1992 to 8.1 gmˉ² aˉ¹ in 1996. TON load rose from 69.35 g mˉ² aˉ¹ in 1992 to 104.8 g mˉ² aˉ¹ in 1996. K fell from 97.3 g mˉ² aˉ¹ in 1994 to 96.4 g mˉ² aˉ¹ in 1996. The STW uses a Reedbed Treatment System (RBTS) to 'polish' its final effluent. The efficiency o f the RBTS was studied and during 1996 the efficiency rate for T ON was 20.9% and for SRP was 9.3%. Measurements of height, diameter, numbers of internodes, density and biomass of reeds collected from South Milton Ley were undertaken during August 1994 and 1995. Results of analyses for 1994 indicate that reeds were thinner and possessed fewer seedheads than those of 1995 but that density was greater. Reed fieldwork during 1994 found that height, diameter, numbers of internodes, biomass and number of seedheads were greater below the STW than above. During 1995 only seedhead production was greater below the outlet. The wettest area of the Ley contained reeds with greatest height and diameter. The driest area produced a higher density of reed growth. Laboratory experiments suggested that low N:K ratios and high P:K produced taller plants. Data from reed fieldwork together with results from hydrology and water chemistry studies were used in a statistical analysis in order to determine which, if any of these factors caused changes in reed growth. A conclusive link between water chemistry, hydrology and plant variables was not found. Correlation analysis for 1994 indicated that high concentrations of SRP and TON could produce thin reeds with low biomass. Analysis for 1995 suggested that elevated K values could produce a high density of short reeds. Water depth was found to have a significant effect (P < 0.001) on diameter. The key factors for reed decline (high water levels from spring to winter which can inhibit reed regeneration and increase…
Subjects/Keywords: 577; Coastal wetlands
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Manager
APA (6th Edition):
Powell, P. A. (2000). The effects of hydrology and nutrient inputs at South Milton Ley on the ecology of the common reed Phragmites australis (Cav. Trin. ex Steudal). (Doctoral Dissertation). University of Plymouth. Retrieved from http://hdl.handle.net/10026.1/2061
Chicago Manual of Style (16th Edition):
Powell, Paula Angele. “The effects of hydrology and nutrient inputs at South Milton Ley on the ecology of the common reed Phragmites australis (Cav. Trin. ex Steudal).” 2000. Doctoral Dissertation, University of Plymouth. Accessed April 15, 2021.
http://hdl.handle.net/10026.1/2061.
MLA Handbook (7th Edition):
Powell, Paula Angele. “The effects of hydrology and nutrient inputs at South Milton Ley on the ecology of the common reed Phragmites australis (Cav. Trin. ex Steudal).” 2000. Web. 15 Apr 2021.
Vancouver:
Powell PA. The effects of hydrology and nutrient inputs at South Milton Ley on the ecology of the common reed Phragmites australis (Cav. Trin. ex Steudal). [Internet] [Doctoral dissertation]. University of Plymouth; 2000. [cited 2021 Apr 15].
Available from: http://hdl.handle.net/10026.1/2061.
Council of Science Editors:
Powell PA. The effects of hydrology and nutrient inputs at South Milton Ley on the ecology of the common reed Phragmites australis (Cav. Trin. ex Steudal). [Doctoral Dissertation]. University of Plymouth; 2000. Available from: http://hdl.handle.net/10026.1/2061
University of Newcastle
6.
Sandi Rojas, Steven Gerardo.
Modelling wetland dynamics under climatic and human pressures.
Degree: PhD, 2018, University of Newcastle
URL: http://hdl.handle.net/1959.13/1387412
► Research Doctorate - Doctor of Philosophy (PhD)
Simulation of wetland vegetation dynamics requires the integration of adequate hydraulic, vegetation and sediment transport descriptions in order…
(more)
▼ Research Doctorate - Doctor of Philosophy (PhD)
Simulation of wetland vegetation dynamics requires the integration of adequate hydraulic, vegetation and sediment transport descriptions in order to provide more realistic predictions of vegetation changes over time. Human interventions on wetland systems are a common practice around the world, but the impacts resulting from flood regulation and attenuation have often been excluded from the analysis of wetland dynamics due to oversimplifications of the water flow description. Climate change impacts are also predicted to contribute to trends of global wetland loss because of changes in rainfall-runoff patterns, more frequent droughts, increases in temperature and sea level rise. This thesis presents the development of two frameworks for simulating wetland dynamics in Australia under anthropogenic and climate change pressures: one for tropical coastal wetlands and one for semiarid freshwater wetlands. The models implement hydrodynamic simulations in order to describe the characteristics of the water regime. The basic assumption is that time aggregated descriptors of the water regime, such as flood frequency, flood duration, range of water depth, hydroperiod, and others, are the main drivers of vegetation establishment and survival. The study of both sites provides a contrast that shows the applicability of the methods used in the thesis. In the coastal wetland site, inflows are dominated by the tide, but in the Macquarie Marshes inflows are delivered by the Macquarie River. The magnitude of the area of analysis is another major difference between the two systems: the coastal wetland site has a relatively small area (1.24 km²) whereas the Macquarie Marshes is an extensive freshwater wetland (322 km²). The framework developed for coastal wetlands was applied to a heavily controlled site typical of south-east Australia in order to study the vulnerability of wetland vegetation to submergence under accelerated sea-level rise rates and different management scenarios. Eco-geomorphic accretion mechanisms were included in the analysis of coastal wetlands with a soil surface elevation model. The framework developed for floodplain freshwater wetlands was applied to an ecologically important site: the Macquarie Marshes. Floodplain simulations included the response of wetland understory and forests over a series of 23 years where significant deterioration was reported after an extended drought period. Two simplistic climate change scenarios were also studied to predict changes in vegetation by the year 2030. The simulation of coastal wetlands revealed higher rates of wetland loss when attenuation effects are included in the wetland evolution framework. Based on these results, previous global estimates might be underestimating coastal wetland losses. Simulation of the Macquarie Marshes predicts an increased succession of wetland understory to terrestrial vegetation under a dry climate change scenario. The simulated conditions almost reach the severe deterioration experienced at the…
Advisors/Committee Members: University of Newcastle. Faculty of Engineering & Built Environment, School of Engineering.
Subjects/Keywords: wetlands; eco-geomorphic modelling; eco-hydraulic modelling; climate change; inland wetlands; coastal wetlands
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Manager
APA (6th Edition):
Sandi Rojas, S. G. (2018). Modelling wetland dynamics under climatic and human pressures. (Doctoral Dissertation). University of Newcastle. Retrieved from http://hdl.handle.net/1959.13/1387412
Chicago Manual of Style (16th Edition):
Sandi Rojas, Steven Gerardo. “Modelling wetland dynamics under climatic and human pressures.” 2018. Doctoral Dissertation, University of Newcastle. Accessed April 15, 2021.
http://hdl.handle.net/1959.13/1387412.
MLA Handbook (7th Edition):
Sandi Rojas, Steven Gerardo. “Modelling wetland dynamics under climatic and human pressures.” 2018. Web. 15 Apr 2021.
Vancouver:
Sandi Rojas SG. Modelling wetland dynamics under climatic and human pressures. [Internet] [Doctoral dissertation]. University of Newcastle; 2018. [cited 2021 Apr 15].
Available from: http://hdl.handle.net/1959.13/1387412.
Council of Science Editors:
Sandi Rojas SG. Modelling wetland dynamics under climatic and human pressures. [Doctoral Dissertation]. University of Newcastle; 2018. Available from: http://hdl.handle.net/1959.13/1387412
Florida International University
7.
Mazzei, Viviana.
Diatoms as tools for inferring changing environmental gradients in coastal, freshwater wetlands threatened by saltwater intrusion.
Degree: PhD, Biology, 2018, Florida International University
URL: https://digitalcommons.fiu.edu/etd/3716
;
10.25148/etd.FIDC004084
;
FIDC004084
► Saltwater intrusion alters the natural salinity and phosphorus (P) gradients in the oligotrophic, freshwater wetlands located near coastlines of the Caribbean Basin with important…
(more)
▼ Saltwater intrusion alters the natural salinity and phosphorus (P) gradients in the oligotrophic, freshwater
wetlands located near coastlines of the Caribbean Basin with important consequences to the structure and function of key ecosystem components, including plants, soil microbes, and periphyton. Periphyton communities, particularly diatoms, are extremely sensitive to water quality changes and can serve as excellent bioindicators; however, little is known about their use in detecting novel rates of saltwater intrusion into
coastal, freshwater
wetlands. I examined the individual and combined effects of elevated salinity and P on periphyton functional processes and diatom composition by conducting transect surveys along salinity and P gradients in the southern Everglades, as well as through mesocosm studies in which salinity and P were experimental manipulated. I demonstrated that conductivity (a proxy for salinity) and P gradients drive spatial patterns in diatom assemblage structure in the southern Everglades and that these assemblages have relatively low conductivity (2 mS cm
-1) and total P thresholds (82 µg g
-1). These findings were supported by the experimental work which showed that monthly pulses of elevated salinity only ~1 ppt above ambient was sufficient to cause significant shifts in periphytic diatom assemblages along with reduced periphyton productivity, total carbon, and nutrient content. The addition of P to freshwater and salt-treated periphyton significantly elevated mat total P, underscoring the P-uptake efficiency of periphyton. Surprisingly, addition of P to freshwater periphyton did not elicit significant functional or compositional responses, although chlorophyll-
aconcentrations and accumulation rates tended to be higher with P. Similar chlorophyll-
atrends were observed for salt-treated mats with added P, but these mats also exhibited significantly higher gross primary productivity and net ecosystem productivity compared to all other treatments and a diatom assemblage distinct from any other treatment. This research provides new and valuable information regarding periphyton dynamics in response to changing water sources that will allow us to extend the use of periphyton, and their diatom assemblages, as tools for environmental assessments related to saltwater intrusion in the southern Everglades and other karstic, freshwater
wetlands.
Advisors/Committee Members: Evelyn Gaiser, Ken Feeley, John Kominoski, Jennifer Richards, Michael Ross.
Subjects/Keywords: Ecological indicators; diatoms; ecotones; saltwater intrusion; coastal wetlands; karstic wetlands; Biology; Life Sciences
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Manager
APA (6th Edition):
Mazzei, V. (2018). Diatoms as tools for inferring changing environmental gradients in coastal, freshwater wetlands threatened by saltwater intrusion. (Doctoral Dissertation). Florida International University. Retrieved from https://digitalcommons.fiu.edu/etd/3716 ; 10.25148/etd.FIDC004084 ; FIDC004084
Chicago Manual of Style (16th Edition):
Mazzei, Viviana. “Diatoms as tools for inferring changing environmental gradients in coastal, freshwater wetlands threatened by saltwater intrusion.” 2018. Doctoral Dissertation, Florida International University. Accessed April 15, 2021.
https://digitalcommons.fiu.edu/etd/3716 ; 10.25148/etd.FIDC004084 ; FIDC004084.
MLA Handbook (7th Edition):
Mazzei, Viviana. “Diatoms as tools for inferring changing environmental gradients in coastal, freshwater wetlands threatened by saltwater intrusion.” 2018. Web. 15 Apr 2021.
Vancouver:
Mazzei V. Diatoms as tools for inferring changing environmental gradients in coastal, freshwater wetlands threatened by saltwater intrusion. [Internet] [Doctoral dissertation]. Florida International University; 2018. [cited 2021 Apr 15].
Available from: https://digitalcommons.fiu.edu/etd/3716 ; 10.25148/etd.FIDC004084 ; FIDC004084.
Council of Science Editors:
Mazzei V. Diatoms as tools for inferring changing environmental gradients in coastal, freshwater wetlands threatened by saltwater intrusion. [Doctoral Dissertation]. Florida International University; 2018. Available from: https://digitalcommons.fiu.edu/etd/3716 ; 10.25148/etd.FIDC004084 ; FIDC004084
Louisiana State University
8.
Costa, Rebecca B.
Policies of Loss: Coastal Erosion and the Struggle to Save Louisiana's Wetlands.
Degree: PhD, History, 2016, Louisiana State University
URL: etd-10212016-123203
;
https://digitalcommons.lsu.edu/gradschool_dissertations/4299
► Since the 1930s, Louisiana has lost approximately 1,800 square miles of land due to the subsidence of the state’s coastal wetlands. By the early 1970s,…
(more)
▼ Since the 1930s, Louisiana has lost approximately 1,800 square miles of land due to the subsidence of the state’s coastal wetlands. By the early 1970s, public officials and private citizens were starting to become aware of the crisis on the coast, and a broad agreement developed among state and federal representatives that action was needed to address the problem. Over the course of nearly forty years, policymakers in Louisiana and Washington, D.C., implemented a series of laws and regulations meant to protect vulnerable ecosystems like the state’s wetlands. In the 1980s, officials also started crafting policies to help restore Louisiana’s shrinking coastline. While considerable progress has been made to slow the subsidence, stopping or reversing coastal erosion has proven to be nearly impossible. Inefficient bureaucratic management, insufficient funding, and the failure to substantially alter land-use and water-use policies in Louisiana have undermined the state’s conservation and restoration efforts since the 1970s. The catastrophic consequences of Hurricane Katrina forced officials in Baton Rouge and the federal government to correct some long-standing problems, but the implementation of a fully comprehensive restoration and management plan remains piecemeal – even a decade after the devastating 2005 hurricane season. This dissertation examines the broad context of the political and economic climate that contributed to the development of coastal erosion in Louisiana and closely examines the state and federal policy responses to the crisis between 1970 and 2009.
Subjects/Keywords: Louisiana; coastal erosion; wetlands; environmental policy; wetlands policy; environmental history; southern environmental history
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APA (6th Edition):
Costa, R. B. (2016). Policies of Loss: Coastal Erosion and the Struggle to Save Louisiana's Wetlands. (Doctoral Dissertation). Louisiana State University. Retrieved from etd-10212016-123203 ; https://digitalcommons.lsu.edu/gradschool_dissertations/4299
Chicago Manual of Style (16th Edition):
Costa, Rebecca B. “Policies of Loss: Coastal Erosion and the Struggle to Save Louisiana's Wetlands.” 2016. Doctoral Dissertation, Louisiana State University. Accessed April 15, 2021.
etd-10212016-123203 ; https://digitalcommons.lsu.edu/gradschool_dissertations/4299.
MLA Handbook (7th Edition):
Costa, Rebecca B. “Policies of Loss: Coastal Erosion and the Struggle to Save Louisiana's Wetlands.” 2016. Web. 15 Apr 2021.
Vancouver:
Costa RB. Policies of Loss: Coastal Erosion and the Struggle to Save Louisiana's Wetlands. [Internet] [Doctoral dissertation]. Louisiana State University; 2016. [cited 2021 Apr 15].
Available from: etd-10212016-123203 ; https://digitalcommons.lsu.edu/gradschool_dissertations/4299.
Council of Science Editors:
Costa RB. Policies of Loss: Coastal Erosion and the Struggle to Save Louisiana's Wetlands. [Doctoral Dissertation]. Louisiana State University; 2016. Available from: etd-10212016-123203 ; https://digitalcommons.lsu.edu/gradschool_dissertations/4299
University of Minnesota
9.
Panci, Hannah.
Habitat and landscape characteristics that influence
Sedge Wren (Cistothorus platensis) and
Marsh Wren (C. palustris) distribution
and abundance in Great Lakes coastal wetlands.
Degree: MS, Integrated Biosciences, 2013, University of Minnesota
URL: http://purl.umn.edu/160254
► University of Minnesota M.S. thesis. August 2013. Major: Integrated Biosciences. Advisor: Gerald J. Niemi. 1 computer file (PDF); v, 188 pages, appendices 1-7.
I analyzed…
(more)
▼ University of Minnesota M.S. thesis. August 2013.
Major: Integrated Biosciences. Advisor: Gerald J. Niemi. 1 computer
file (PDF); v, 188 pages, appendices 1-7.
I analyzed habitat and landscape characteristics
important to the Sedge Wren (Cistothorus
platensis) and Marsh Wren (C.
palustris) in Great Lakes coastal wetlands using
breeding bird census data from two large projects in 2002-2003 and
2011-2012. Little is known about the population or distribution of
these species in the Great Lakes region. For each of 840 survey
points in coastal wetlands along the U.S. and Canadian shorelines,
I used National Land Cover Data and Ontario Land Cover Data to
calculate the percent cover of seven different land use classes
within 500, 1000, and 2000 m buffers of each point. I combined
these with climatic and landscape configuration variables as well
as field-collected vegetation data to develop classification trees
that predicted both Sedge and Marsh Wren presence and relative high
abundance (≥3 wrens/site). After eliminating geographic
variables, the best classification trees predicted Sedge Wrens to
be present in wetlands with greater than 9% woody wetlands at the
2000 m buffer, and in high abundance in sites with less than 3%
cattails and greater than 4% meadow vegetation. Marsh Wren presence
was positively associated with emergent vegetation and cropland,
and negatively associated with woody wetland at the 500 m buffer.
Marsh Wrens were predicted to be in high abundance at sites with
greater than 14% cattails. This classification tree analysis is a
powerful predictive tool which significantly increases our ability
to correctly predict the presence of these secretive wetland
species. These results provide a basic understanding of
characteristics of Great Lakes coastal wetlands important to two
wetland-obligate bird species and can be useful in conservation
decisions and management plans.
Advisors/Committee Members: Gerald J. Niemi.
Subjects/Keywords: Coastal wetlands; Great Lakes; Landscape; Marsh Wren; Sedge Wren; Wetland birds
Record Details
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Panci, H. (2013). Habitat and landscape characteristics that influence
Sedge Wren (Cistothorus platensis) and
Marsh Wren (C. palustris) distribution
and abundance in Great Lakes coastal wetlands. (Masters Thesis). University of Minnesota. Retrieved from http://purl.umn.edu/160254
Chicago Manual of Style (16th Edition):
Panci, Hannah. “Habitat and landscape characteristics that influence
Sedge Wren (Cistothorus platensis) and
Marsh Wren (C. palustris) distribution
and abundance in Great Lakes coastal wetlands.” 2013. Masters Thesis, University of Minnesota. Accessed April 15, 2021.
http://purl.umn.edu/160254.
MLA Handbook (7th Edition):
Panci, Hannah. “Habitat and landscape characteristics that influence
Sedge Wren (Cistothorus platensis) and
Marsh Wren (C. palustris) distribution
and abundance in Great Lakes coastal wetlands.” 2013. Web. 15 Apr 2021.
Vancouver:
Panci H. Habitat and landscape characteristics that influence
Sedge Wren (Cistothorus platensis) and
Marsh Wren (C. palustris) distribution
and abundance in Great Lakes coastal wetlands. [Internet] [Masters thesis]. University of Minnesota; 2013. [cited 2021 Apr 15].
Available from: http://purl.umn.edu/160254.
Council of Science Editors:
Panci H. Habitat and landscape characteristics that influence
Sedge Wren (Cistothorus platensis) and
Marsh Wren (C. palustris) distribution
and abundance in Great Lakes coastal wetlands. [Masters Thesis]. University of Minnesota; 2013. Available from: http://purl.umn.edu/160254
University of Ontario Institute of Technology
10.
Anderson, Eric.
Characterizing Plankton communities in Lake Ontario coastal wetlands along an urban land-use gradient.
Degree: 2020, University of Ontario Institute of Technology
URL: http://hdl.handle.net/10155/1158
► This thesis presents the results of a study on the effect of habitat condition and water quality on plankton communities across an urban land-use gradient…
(more)
▼ This thesis presents the results of a study on the effect of habitat condition and water quality on plankton communities across an urban land-use gradient in the Lake Ontario
coastal wetlands: Frenchman???s Bay, Lynde Marsh, McLaughlin Bay, and Bowmanville Marsh over two years (2018-2019). One of the study
wetlands (McLaughlin Bay) was assessed over three years (2017-2019) for its suitability as a candidate wetland for biomanipulation restoration. I found water quality was generally not degraded along the urban gradient as expected. Nutrient rich waters and high chloride concentrations were determined to be important drivers of decreased diversity and higher algal biomass dominated by cyanobacteria. In my assessment of McLaughlin Bay, I found that due to the nutrient- and chloride-rich conditions, the plankton community was dominated by inedible algal communities, and small zooplankton taxa. These results do not support applying biomanipulation as a restoration approach in McLaughlin Bay at this time.
Advisors/Committee Members: Kirkwood, Andrea.
Subjects/Keywords: Plankton communities; Water quality; Land use; Lake Ontario coastal wetlands; Biomanipulation
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APA ·
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MLA ·
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CSE |
Export
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Manager
APA (6th Edition):
Anderson, E. (2020). Characterizing Plankton communities in Lake Ontario coastal wetlands along an urban land-use gradient. (Thesis). University of Ontario Institute of Technology. Retrieved from http://hdl.handle.net/10155/1158
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Anderson, Eric. “Characterizing Plankton communities in Lake Ontario coastal wetlands along an urban land-use gradient.” 2020. Thesis, University of Ontario Institute of Technology. Accessed April 15, 2021.
http://hdl.handle.net/10155/1158.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Anderson, Eric. “Characterizing Plankton communities in Lake Ontario coastal wetlands along an urban land-use gradient.” 2020. Web. 15 Apr 2021.
Vancouver:
Anderson E. Characterizing Plankton communities in Lake Ontario coastal wetlands along an urban land-use gradient. [Internet] [Thesis]. University of Ontario Institute of Technology; 2020. [cited 2021 Apr 15].
Available from: http://hdl.handle.net/10155/1158.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Anderson E. Characterizing Plankton communities in Lake Ontario coastal wetlands along an urban land-use gradient. [Thesis]. University of Ontario Institute of Technology; 2020. Available from: http://hdl.handle.net/10155/1158
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Washington
11.
Vitro, Kristen Ashley.
Evaluating the Impacts of Discount Function and Rate Selection on the Net Present Valuation of Coastal Wetland Ecosystem Services: An Exploratory Meta-Analysis.
Degree: 2014, University of Washington
URL: http://hdl.handle.net/1773/26087
► This thesis explores the impact of discount function and rate selection on the net present valuation of coastal wetland ecosystem services in the context of…
(more)
▼ This thesis explores the impact of discount function and rate selection on the net present valuation of
coastal wetland ecosystem services in the context of benefit cost analysis. Using valuation estimates from peer-reviewed literature, the effects of exponential and hyperbolic discounting functions are compared across several discount rates and time horizons. The choice of discount rates, as well as discount functions, appears to have a considerable impact on net present value, especially on a long time horizon. This thesis questions the seemingly arbitrary assignment of high discount rates for benefit cost analyses involving ecosystem services, addressing the underlying economic theory and associated market failures that arise from attempting to value public goods that likely exhibit increasing returns. A close examination of transaction cost economics suggests that the biophysical characteristics of ecosystem services, coupled with incomplete information regarding preferences of future generations and the sheer number of individuals and firms acting as stakeholders, may serve as a barrier to transactions and the establishment of an efficient market to signal the true value of an ecosystem. Uncertainty regarding estimated ecosystem service values and the future impacts of climate change lead to the conclusion that a regulatory framework may provide a more effective means of protecting natural capital.
Advisors/Committee Members: Whittington, Jan (advisor).
Subjects/Keywords: coastal wetlands; discounting; ecosystem services; Urban planning; urban planning
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APA ·
Chicago ·
MLA ·
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CSE |
Export
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Manager
APA (6th Edition):
Vitro, K. A. (2014). Evaluating the Impacts of Discount Function and Rate Selection on the Net Present Valuation of Coastal Wetland Ecosystem Services: An Exploratory Meta-Analysis. (Thesis). University of Washington. Retrieved from http://hdl.handle.net/1773/26087
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Vitro, Kristen Ashley. “Evaluating the Impacts of Discount Function and Rate Selection on the Net Present Valuation of Coastal Wetland Ecosystem Services: An Exploratory Meta-Analysis.” 2014. Thesis, University of Washington. Accessed April 15, 2021.
http://hdl.handle.net/1773/26087.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Vitro, Kristen Ashley. “Evaluating the Impacts of Discount Function and Rate Selection on the Net Present Valuation of Coastal Wetland Ecosystem Services: An Exploratory Meta-Analysis.” 2014. Web. 15 Apr 2021.
Vancouver:
Vitro KA. Evaluating the Impacts of Discount Function and Rate Selection on the Net Present Valuation of Coastal Wetland Ecosystem Services: An Exploratory Meta-Analysis. [Internet] [Thesis]. University of Washington; 2014. [cited 2021 Apr 15].
Available from: http://hdl.handle.net/1773/26087.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Vitro KA. Evaluating the Impacts of Discount Function and Rate Selection on the Net Present Valuation of Coastal Wetland Ecosystem Services: An Exploratory Meta-Analysis. [Thesis]. University of Washington; 2014. Available from: http://hdl.handle.net/1773/26087
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Minnesota
12.
Panci, Hannah.
Habitat and landscape characteristics that influence Sedge Wren (Cistothorus platensis) and Marsh Wren (C. palustris) distribution and abundance in Great Lakes coastal wetlands.
Degree: MS, Integrated Biosciences, 2013, University of Minnesota
URL: http://purl.umn.edu/160254
► I analyzed habitat and landscape characteristics important to the Sedge Wren (Cistothorus platensis) and Marsh Wren (C. palustris) in Great Lakes coastal wetlands using breeding…
(more)
▼ I analyzed habitat and landscape characteristics important to the Sedge Wren (Cistothorus platensis) and Marsh Wren (C. palustris) in Great Lakes coastal wetlands using breeding bird census data from two large projects in 2002-2003 and 2011-2012. Little is known about the population or distribution of these species in the Great Lakes region. For each of 840 survey points in coastal wetlands along the U.S. and Canadian shorelines, I used National Land Cover Data and Ontario Land Cover Data to calculate the percent cover of seven different land use classes within 500, 1000, and 2000 m buffers of each point. I combined these with climatic and landscape configuration variables as well as field-collected vegetation data to develop classification trees that predicted both Sedge and Marsh Wren presence and relative high abundance (≥3 wrens/site). After eliminating geographic variables, the best classification trees predicted Sedge Wrens to be present in wetlands with greater than 9% woody wetlands at the 2000 m buffer, and in high abundance in sites with less than 3% cattails and greater than 4% meadow vegetation. Marsh Wren presence was positively associated with emergent vegetation and cropland, and negatively associated with woody wetland at the 500 m buffer. Marsh Wrens were predicted to be in high abundance at sites with greater than 14% cattails. This classification tree analysis is a powerful predictive tool which significantly increases our ability to correctly predict the presence of these secretive wetland species. These results provide a basic understanding of characteristics of Great Lakes coastal wetlands important to two wetland-obligate bird species and can be useful in conservation decisions and management plans.
Subjects/Keywords: Coastal wetlands; Great Lakes; Landscape; Marsh Wren; Sedge Wren; Wetland birds
Record Details
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Record Details
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Panci, H. (2013). Habitat and landscape characteristics that influence Sedge Wren (Cistothorus platensis) and Marsh Wren (C. palustris) distribution and abundance in Great Lakes coastal wetlands. (Masters Thesis). University of Minnesota. Retrieved from http://purl.umn.edu/160254
Chicago Manual of Style (16th Edition):
Panci, Hannah. “Habitat and landscape characteristics that influence Sedge Wren (Cistothorus platensis) and Marsh Wren (C. palustris) distribution and abundance in Great Lakes coastal wetlands.” 2013. Masters Thesis, University of Minnesota. Accessed April 15, 2021.
http://purl.umn.edu/160254.
MLA Handbook (7th Edition):
Panci, Hannah. “Habitat and landscape characteristics that influence Sedge Wren (Cistothorus platensis) and Marsh Wren (C. palustris) distribution and abundance in Great Lakes coastal wetlands.” 2013. Web. 15 Apr 2021.
Vancouver:
Panci H. Habitat and landscape characteristics that influence Sedge Wren (Cistothorus platensis) and Marsh Wren (C. palustris) distribution and abundance in Great Lakes coastal wetlands. [Internet] [Masters thesis]. University of Minnesota; 2013. [cited 2021 Apr 15].
Available from: http://purl.umn.edu/160254.
Council of Science Editors:
Panci H. Habitat and landscape characteristics that influence Sedge Wren (Cistothorus platensis) and Marsh Wren (C. palustris) distribution and abundance in Great Lakes coastal wetlands. [Masters Thesis]. University of Minnesota; 2013. Available from: http://purl.umn.edu/160254
University of South Florida
13.
Anderson, Bert D.
The Distribution and Biogeochemistry of Subtropical Intertidal Microbial Mats.
Degree: 2019, University of South Florida
URL: https://scholarcommons.usf.edu/etd/7730
► Microbial mats have played an important role in the carbon (C) and nutrient cycles since the Archean Eon and modern mats are important contributors to…
(more)
▼ Microbial mats have played an important role in the carbon (C) and nutrient cycles since the Archean Eon and modern mats are important contributors to the biogeochemistry of intertidal wetlands. Microbial mats are flat assemblages of microbes that are currently found in many unvegetated habitats globally. Intertidal salt pans are a common habitat for microbial mats, however little is known about the distribution of microbial mats within the intertidal landscape. Understanding the spatial distribution of microbial mats is critical to developing quantitative estimates of the impacts of microbial mats on their ecosystems. We photographically measured the presence and density of microbial mats within 1 m2 quadrats across a landscape scale (~1000 Ha) on the Gulf Coast of Florida. The wide variety of metabolic processes that are found within microbial mats makes the net biogeochemical impacts of the microbial mats highly variable as well. To explore the biogeochemistry associated with microbial mats, we measured a suite of soil attributes under microbial mats and compared those measurements to nearby soils without microbial mats. We found that microbial mats are found on soils with biogeochemical attributes that are significantly different than soils without microbial mats. Soil organic matter, nitrate concentration, and soil temperature significantly increased in soils under microbial mats; pH was significantly lower in soils under microbial mats. Also notable was although the concentration of soil organic matter was higher, the bioavailability of that organic matter was significantly lower. Microbial mat presence is correlated with geomorphic variables such as proximal boundaries, as well as neighboring vegetation and other microbial mats.
Subjects/Keywords: Biogeochemistry; Coastal Wetlands; Microbial Mat; Salt Pans; Biogeochemistry; Biology
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APA ·
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MLA ·
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APA (6th Edition):
Anderson, B. D. (2019). The Distribution and Biogeochemistry of Subtropical Intertidal Microbial Mats. (Thesis). University of South Florida. Retrieved from https://scholarcommons.usf.edu/etd/7730
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Anderson, Bert D. “The Distribution and Biogeochemistry of Subtropical Intertidal Microbial Mats.” 2019. Thesis, University of South Florida. Accessed April 15, 2021.
https://scholarcommons.usf.edu/etd/7730.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Anderson, Bert D. “The Distribution and Biogeochemistry of Subtropical Intertidal Microbial Mats.” 2019. Web. 15 Apr 2021.
Vancouver:
Anderson BD. The Distribution and Biogeochemistry of Subtropical Intertidal Microbial Mats. [Internet] [Thesis]. University of South Florida; 2019. [cited 2021 Apr 15].
Available from: https://scholarcommons.usf.edu/etd/7730.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Anderson BD. The Distribution and Biogeochemistry of Subtropical Intertidal Microbial Mats. [Thesis]. University of South Florida; 2019. Available from: https://scholarcommons.usf.edu/etd/7730
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Hawaii – Manoa
14.
Margriter, Sandra C.
Assessing the condition of Hawaiian coastal wetlands using a multi-scaled approach.
Degree: 2016, University of Hawaii – Manoa
URL: http://hdl.handle.net/10125/101602
► M.S. University of Hawaii at Manoa 2011.
The U.S. Environmental Protection Agency (EPA) advises using a multi-scaled approach to evaluating the integrity of wetland ecosystems…
(more)
▼ M.S. University of Hawaii at Manoa 2011.
The U.S. Environmental Protection Agency (EPA) advises using a multi-scaled approach to evaluating the integrity of wetland ecosystems that includes intensive field surveys (Level I), rapid on-site assessments (Level II), and remote or landscape-scale assessments (Level III).
Although wetland condition assessment procedures have been developed, validated, and calibrated in the continental U.S., they have not yet been fully developed or field-tested with wetlands in the Pacific Islands. To my knowledge, this project was the first to field test rapid assessment methods (RAMs) in Hawaiian coastal wetlands. Three on-site RAMs, developed for coastal wetlands in the continental U.S. (Florida Wetland Rapid Assessment Procedure, California Rapid Assessment Method, and the Hawaiʻi Hydrogeomorphic Method), were field tested in 27 coastal Hawaiian wetlands. In addition, three different indicators of landscape condition (landscape development intensity, road density, and forest cover) were used in remote (Level I) condition assessments of the wetland buffers (100m and 1,000m radii) and watersheds.
Based on the assumption that condition assessments collected at different levels of detail should provide consistent information, the results from the remote and rapid assessments were compared with detailed (Level III) field data collected on soil and water quality during prior surveys (2007-2009). Results showed that landscape indicators (development intensity and road density) calculated from readily available GIS data, particularly for the 1,000m buffers and watershed basins of each wetland, were significantly correlated with wetland soil parameters (i.e. bulk density [BD], pH, soil organic matter [SOM], total nitrogen [TN], and extractable phosphorus [ExP]) and with water quality parameters (total dissolved nitrogen [TDN], total phosphorus [TP], and δ15N levels in wetland plant tissue). In addition the high degree of correlation between landscape development intensity (LDI) and road densities (in watersheds; r = 0.95, p < 0.01) suggests that both provide comparable indicators of anthropogenic stressors in Hawaiian landscapes that vary from natural, mixed agriculture, to urban. The scores from the rapid assessment methods (RAMs), however, were somewhat weakly correlated with soil parameters (i.e. BD, total carbon [TC], SOM, and TN, ExP), yet strongly correlated with the δ15N levels in wetland plant tissue, an indicator of human and animal waste. The correlations between RAM scores and landscape indicators (LDI scores and road density), calculated for the wetland buffers (1,000m) and watersheds, were also strong. Among the rapid assessment methods, CRAM showed the strongest correlations with Level I and Level III data, which suggests that although CRAM was developed for condition assessments along the Pacific West coastline (from Mexico to Oregon), with modifications to account for local conditions, the method could be applied to assessing the condition of Hawaiian coastal wetlands.
Subjects/Keywords: Hawaiian coastal wetlands; multi-scaled approach; wetland integrity
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APA ·
Chicago ·
MLA ·
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CSE |
Export
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Manager
APA (6th Edition):
Margriter, S. C. (2016). Assessing the condition of Hawaiian coastal wetlands using a multi-scaled approach. (Thesis). University of Hawaii – Manoa. Retrieved from http://hdl.handle.net/10125/101602
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Margriter, Sandra C. “Assessing the condition of Hawaiian coastal wetlands using a multi-scaled approach.” 2016. Thesis, University of Hawaii – Manoa. Accessed April 15, 2021.
http://hdl.handle.net/10125/101602.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Margriter, Sandra C. “Assessing the condition of Hawaiian coastal wetlands using a multi-scaled approach.” 2016. Web. 15 Apr 2021.
Vancouver:
Margriter SC. Assessing the condition of Hawaiian coastal wetlands using a multi-scaled approach. [Internet] [Thesis]. University of Hawaii – Manoa; 2016. [cited 2021 Apr 15].
Available from: http://hdl.handle.net/10125/101602.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Margriter SC. Assessing the condition of Hawaiian coastal wetlands using a multi-scaled approach. [Thesis]. University of Hawaii – Manoa; 2016. Available from: http://hdl.handle.net/10125/101602
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Clemson University
15.
Leonard, Paul.
REMOTE DETECTION OF EPHEMERAL WETLANDS IN MID- ATLANTIC COASTAL PLAIN ECOREGIONS: LIDAR AND HIGH-THROUGHPUT COMPUTING.
Degree: MS, Wildlife and Fisheries Biology, 2012, Clemson University
URL: https://tigerprints.clemson.edu/all_theses/1207
► Ephemeral wetlands are ecologically important freshwater ecosystems that occur frequently throughout the Atlantic coastal plain ecoregions of North America. Despite the growing consensus of their…
(more)
▼ Ephemeral
wetlands are ecologically important freshwater ecosystems that occur frequently throughout the Atlantic
coastal plain ecoregions of North America. Despite the growing consensus of their importance and imperilment, these systems historically have not been a national conservation priority. They are often cryptic on the landscape and methods to detect ephemeral
wetlands remotely have been ineffective at the landscape scales necessary for conservation planning and resource management. Therefore, this study fills information gaps by employing high-resolution light detection and ranging (LiDAR) data to create local relief models that elucidate small localized changes in concavity. Relief models were then processed with local indicators of spatial association (LISA) in order to automate their detection by measuring autocorrelation among model indices. Following model development and data processing, field validation of 114 predicted wetland locations was conducted using a random stratified design proportional to landcover, to measure model commission (α) and omission (β) error rates. Wetland locations were correctly predicted at 85% of visited sites with α error rate = 15% and β error rate = 5%. These results suggest that devised local relief models captured small geomorphologic changes that successfully predict ephemeral wetland boundaries in low-relief ecosystems. Small
wetlands are often centers of biodiversity in forested landscapes and this analysis will facilitate their detection, the first step towards long-term management.
Advisors/Committee Members: Baldwin, Robert F, Homyack , Jessica A, Post , Christopher J.
Subjects/Keywords: Coastal Plain; Ephemeral Wetlands; LiDAR; Civil and Environmental Engineering
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APA ·
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APA (6th Edition):
Leonard, P. (2012). REMOTE DETECTION OF EPHEMERAL WETLANDS IN MID- ATLANTIC COASTAL PLAIN ECOREGIONS: LIDAR AND HIGH-THROUGHPUT COMPUTING. (Masters Thesis). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_theses/1207
Chicago Manual of Style (16th Edition):
Leonard, Paul. “REMOTE DETECTION OF EPHEMERAL WETLANDS IN MID- ATLANTIC COASTAL PLAIN ECOREGIONS: LIDAR AND HIGH-THROUGHPUT COMPUTING.” 2012. Masters Thesis, Clemson University. Accessed April 15, 2021.
https://tigerprints.clemson.edu/all_theses/1207.
MLA Handbook (7th Edition):
Leonard, Paul. “REMOTE DETECTION OF EPHEMERAL WETLANDS IN MID- ATLANTIC COASTAL PLAIN ECOREGIONS: LIDAR AND HIGH-THROUGHPUT COMPUTING.” 2012. Web. 15 Apr 2021.
Vancouver:
Leonard P. REMOTE DETECTION OF EPHEMERAL WETLANDS IN MID- ATLANTIC COASTAL PLAIN ECOREGIONS: LIDAR AND HIGH-THROUGHPUT COMPUTING. [Internet] [Masters thesis]. Clemson University; 2012. [cited 2021 Apr 15].
Available from: https://tigerprints.clemson.edu/all_theses/1207.
Council of Science Editors:
Leonard P. REMOTE DETECTION OF EPHEMERAL WETLANDS IN MID- ATLANTIC COASTAL PLAIN ECOREGIONS: LIDAR AND HIGH-THROUGHPUT COMPUTING. [Masters Thesis]. Clemson University; 2012. Available from: https://tigerprints.clemson.edu/all_theses/1207
Louisiana State University
16.
Bevington, Azure Elizabeth.
Dynamics of Land Building and Ecological Succession in a Prograding Deltaic Floodplain, Wax Lake Delta, LA, USA.
Degree: PhD, Oceanography and Atmospheric Sciences and Meteorology, 2016, Louisiana State University
URL: etd-10212016-115651
;
https://digitalcommons.lsu.edu/gradschool_dissertations/4206
► Deltas are globally important locations of diverse ecosystems, human settlement and economic activity that are threatened by reduced sediment delivery, accelerated sea level rise, and…
(more)
▼ Deltas are globally important locations of diverse ecosystems, human settlement and economic activity that are threatened by reduced sediment delivery, accelerated sea level rise, and subsidence. In this dissertation I investigated a number of aspects of the ecosystem development over time within an actively prograding river dominated delta along the northern Gulf of Mexico coast. I outlined a conceptual model of deltaic floodplain wetland establishment and succession focused on the vegetated deltaic floodplain ecosystem, which includes subtidal, intertidal and supratidal zones. This was used to guide the experimental design and statistically driven hypothesis testing in order to ascertain the validity of the processes outlined therein. I attempted to determine how sediment surface elevation of delta floodplain wetlands changed in a prograding delta as a result of flooding, hurricanes, and cold front passage, and to compare the patterns of change between years. I also investigated the patterns in island edge cross-sectional morphology over time within a chronosequence framework which encompassed the entire period of subaerial expression of the Wax Lake Delta (WLD) in Louisiana, USA. The zonation and patterns of the herbaceous vegetation community were also investigated in response the elevation as well as hurricane storm surge passage. The forest structure of Salix nigra (black willow) on deltaic floodplain islands, was investigated in response to the estimated age of the stand, (i.e. time since establishment) and the major river floods, using both the chronosequence map and aerial imagery analysis of willow stands. Based on these finding I suggest refinements and expansion of the conceptual model to allow for inclusion of the temporal aspect of the ecosystem as a whole, which at any one time consists of numerous phases of ecological development. The findings of this dissertation and the proposed refinements of the conceptual model add to a better understanding of the deltaic floodplain ecosystem and provide a framework on which to investigate further questions of ecological development.
Subjects/Keywords: coastal wetlands; deltaic floodplains; successional development; chronosequence; deltaic forest establishment
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APA (6th Edition):
Bevington, A. E. (2016). Dynamics of Land Building and Ecological Succession in a Prograding Deltaic Floodplain, Wax Lake Delta, LA, USA. (Doctoral Dissertation). Louisiana State University. Retrieved from etd-10212016-115651 ; https://digitalcommons.lsu.edu/gradschool_dissertations/4206
Chicago Manual of Style (16th Edition):
Bevington, Azure Elizabeth. “Dynamics of Land Building and Ecological Succession in a Prograding Deltaic Floodplain, Wax Lake Delta, LA, USA.” 2016. Doctoral Dissertation, Louisiana State University. Accessed April 15, 2021.
etd-10212016-115651 ; https://digitalcommons.lsu.edu/gradschool_dissertations/4206.
MLA Handbook (7th Edition):
Bevington, Azure Elizabeth. “Dynamics of Land Building and Ecological Succession in a Prograding Deltaic Floodplain, Wax Lake Delta, LA, USA.” 2016. Web. 15 Apr 2021.
Vancouver:
Bevington AE. Dynamics of Land Building and Ecological Succession in a Prograding Deltaic Floodplain, Wax Lake Delta, LA, USA. [Internet] [Doctoral dissertation]. Louisiana State University; 2016. [cited 2021 Apr 15].
Available from: etd-10212016-115651 ; https://digitalcommons.lsu.edu/gradschool_dissertations/4206.
Council of Science Editors:
Bevington AE. Dynamics of Land Building and Ecological Succession in a Prograding Deltaic Floodplain, Wax Lake Delta, LA, USA. [Doctoral Dissertation]. Louisiana State University; 2016. Available from: etd-10212016-115651 ; https://digitalcommons.lsu.edu/gradschool_dissertations/4206
17.
Cain, Joshua Slocum.
The influence of fluvial wetlands on metabolism and dissolved oxygen patterns along a shallow sloped river continuum.
Degree: MS, 2020, University of New Hampshire
URL: https://scholars.unh.edu/thesis/1379
► Low dissolved oxygen in rivers threatens fish populations, aquatic organisms, and the health of entire ecosystems. River systems with high fluvial wetland abundance and…
(more)
▼ Low dissolved oxygen in rivers threatens fish populations, aquatic organisms, and the health of entire ecosystems. River systems with high fluvial wetland abundance and organic matter may result in high respiration that in conjunction with low re-aeration rates, lead to low surface water oxygen conditions. The increasing abundance of beaver ponds in many areas may exacerbate this phenomenon. This study aims to understand the impact of fluvial
wetlands, including beaver ponds, on dissolved oxygen (D.O.) and metabolism in the Ipswich and Parker River Watersheds, MA, USA. In several fluvial wetland dominated systems, we measured diel D.O. and metabolism in the upstream inflow, the surface water transient storage zones of fluvial wetland sidepools, and at the outflow to understand how the
wetlands modify dissolved oxygen. D.O. was also measured longitudinally along entire surface water flow paths (0.5 – 1.5 km long) to determine patterns of D.O. along continua with varying abundance and distribution of fluvial
wetlands relative to channel-dominated systems. Nutrient samples were also collected at each scale to understand how their patterns were related to D.O.. D.O. percent saturation within the fluvial
wetlands showed large diurnal variation, approaching anoxia at night and super saturation during the day. Diurnal variations also occurred in the downstream outflow, but were lagged and attenuated. The magnitude of diurnal variations was determined by flow conditions, which affect the level of inundation and interaction between advective and transient storage zones. Daily metabolic rates (GPP and ER) were higher within
wetlands and at their outflows than at the channelized inflows.
Wetlands of substantial size located in close proximity (< 100m apart) to one another served to decrease D.O. along the stream continuum. Large reductions in D.O. concentrations caused by
wetlands also corresponded with lower nitrate levels exiting the
wetlands in areas of high N input. Recent rebound in beaver populations and beaver pond abundance contributes to shorter channelized reaches between fluvial wetland environments, preventing re-aeration, resulting in maintenance of anoxic conditions along stream continua. Understanding D.O. behavior throughout river systems has important implications for the ability of river systems to remove anthropogenic nitrogen.
Advisors/Committee Members: Wilfred Wollheim, Anne Lightbody, Ken Sheehan.
Subjects/Keywords: coastal watershed; dissolved oxygen; fluvial wetlands; high frequency sensors; metabolism; nutrients
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APA (6th Edition):
Cain, J. S. (2020). The influence of fluvial wetlands on metabolism and dissolved oxygen patterns along a shallow sloped river continuum. (Thesis). University of New Hampshire. Retrieved from https://scholars.unh.edu/thesis/1379
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Cain, Joshua Slocum. “The influence of fluvial wetlands on metabolism and dissolved oxygen patterns along a shallow sloped river continuum.” 2020. Thesis, University of New Hampshire. Accessed April 15, 2021.
https://scholars.unh.edu/thesis/1379.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Cain, Joshua Slocum. “The influence of fluvial wetlands on metabolism and dissolved oxygen patterns along a shallow sloped river continuum.” 2020. Web. 15 Apr 2021.
Vancouver:
Cain JS. The influence of fluvial wetlands on metabolism and dissolved oxygen patterns along a shallow sloped river continuum. [Internet] [Thesis]. University of New Hampshire; 2020. [cited 2021 Apr 15].
Available from: https://scholars.unh.edu/thesis/1379.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Cain JS. The influence of fluvial wetlands on metabolism and dissolved oxygen patterns along a shallow sloped river continuum. [Thesis]. University of New Hampshire; 2020. Available from: https://scholars.unh.edu/thesis/1379
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Loyola University Chicago
18.
Caldwell, Chantel.
Aquatic Insect Community Structure and Secondary
Production in Coastal Wetland Ponds of the Copper River Delta,
Alaska: Influence of Water Temperature and Macrophyte Community
Structure.
Degree: MS, Biology, 2017, Loyola University Chicago
URL: https://ecommons.luc.edu/luc_theses/3558
► The Copper River Delta (CRD), southcentral Alaska, is one of the world’s largest continuous coastal wetlands and is largely composed of sloughs, lakes, and…
(more)
▼ The Copper River Delta (CRD),
southcentral Alaska, is one of the world’s largest continuous
coastal wetlands and is largely composed of sloughs, lakes, and
ponds. Due to coastal topography the east side of the Copper River
(East Delta) is disproportionately impacted by a cold continental
air mass. Wetland communities of the CRD were also impacted by a
9.2 magnitude earthquake in 1964 that shifted the more coastal
portion of the CRD from tidally influenced ponds to freshwater
ponds. The West-East temperature gradient across
the CRD coupled with landscape type (uplifted marsh (UM) and
outwash plain (OP)) creates four regions (West-UM, West-OP,
East-UM, and East-OP). The goal of this study was to assess the
impact of water temperature, landscape type, and macrophyte
community structure on aquatic insect community structure and
secondary production. Mean water temperatures during the study were
higher in uplifted marsh ponds than in outwash plain ponds. The
warmer, geologically younger UM ponds were dominated by submerged
macrophytes, while the colder, later successional OP ponds were
dominated by long-lived perennial emergent
macrophytes. Taxa richness was highest in West-UM
ponds and lowest in East-OP ponds. West-UM ponds had the second
highest aquatic insect densities of the regions, and relative
abundance of Odonata, Hemiptera, Trichoptera, and Diptera each
comprised 20-35% of the aquatic
insect communities. Predator-engulfers, a
functional feeding group (FFG) with significantly higher densities
in West-UM ponds than in OP ponds, had three times higher annual
secondary production in West-UM ponds than in
other regions. East-OP ponds had the lowest mean diversity and
highest mean density of all four regions. Hemiptera relative
abundance in East-OP ponds was 49.3% followed by Diptera relative
abundance of 35.5%, all other remaining orders were below 11%
relative abundance. Predator-piercers, an FFG composed mainly of
hemipterans and coleopterans, had densities four times higher and
annual secondary production rates two times higher in East-OP ponds
than in other regions. Results from this study revealed significant
differences in aquatic insect community structure and secondary
production between the four regions of the CRD. These results have
strong implications for the potential impacts of climate change in
both early successional and late successional northern latitude
coastal wetlands.
Subjects/Keywords: Alaska; Aquatic Insects; Coastal Wetlands; Macrophytes; Secondary Production; Entomology
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APA (6th Edition):
Caldwell, C. (2017). Aquatic Insect Community Structure and Secondary
Production in Coastal Wetland Ponds of the Copper River Delta,
Alaska: Influence of Water Temperature and Macrophyte Community
Structure. (Thesis). Loyola University Chicago. Retrieved from https://ecommons.luc.edu/luc_theses/3558
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Caldwell, Chantel. “Aquatic Insect Community Structure and Secondary
Production in Coastal Wetland Ponds of the Copper River Delta,
Alaska: Influence of Water Temperature and Macrophyte Community
Structure.” 2017. Thesis, Loyola University Chicago. Accessed April 15, 2021.
https://ecommons.luc.edu/luc_theses/3558.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Caldwell, Chantel. “Aquatic Insect Community Structure and Secondary
Production in Coastal Wetland Ponds of the Copper River Delta,
Alaska: Influence of Water Temperature and Macrophyte Community
Structure.” 2017. Web. 15 Apr 2021.
Vancouver:
Caldwell C. Aquatic Insect Community Structure and Secondary
Production in Coastal Wetland Ponds of the Copper River Delta,
Alaska: Influence of Water Temperature and Macrophyte Community
Structure. [Internet] [Thesis]. Loyola University Chicago; 2017. [cited 2021 Apr 15].
Available from: https://ecommons.luc.edu/luc_theses/3558.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Caldwell C. Aquatic Insect Community Structure and Secondary
Production in Coastal Wetland Ponds of the Copper River Delta,
Alaska: Influence of Water Temperature and Macrophyte Community
Structure. [Thesis]. Loyola University Chicago; 2017. Available from: https://ecommons.luc.edu/luc_theses/3558
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Georgia
19.
Phillips, Willard S.
A conjoint analysis of consumer preferences for wetlands mitigation in Georgia.
Degree: 2014, University of Georgia
URL: http://hdl.handle.net/10724/23492
► Wetlands provide important economic benefits to man. These include the provision of habitat for economically important species, recharging of ground water aquifers, provision of amenities…
(more)
▼ Wetlands provide important economic benefits to man. These include the provision of habitat for economically important species, recharging of ground water aquifers, provision of amenities for outdoor recreation, and the protection of coastal
areas from storm surges. Since the time of European settlement however, the quantity of wetlands in the continental United States has been declining due to the conduct of economic activities in wetlands, as well as the expansion of built development.
Although several pieces of legislation have been enacted to minimize wetlands loss, coastal Georgia continues to experience such losses. This research seeks to assess consumer’s willingness to pay (WTP) for a mitigation policy for the preservation of
Georgia’s wetlands. By applying a conjoint analysis method, a one time WTP was estimated at $77.29 per Georgia household. Subsequent analysis yielded a benefit cost ratio of 7.41, suggesting that wetlands mitigation is economically feasible in
Georgia.
Subjects/Keywords: Wetlands; Mitigation; Conjoint Analysis; Coastal Georgia; Attributes; Willingness to Pay; Valuation
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APA (6th Edition):
Phillips, W. S. (2014). A conjoint analysis of consumer preferences for wetlands mitigation in Georgia. (Thesis). University of Georgia. Retrieved from http://hdl.handle.net/10724/23492
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Phillips, Willard S. “A conjoint analysis of consumer preferences for wetlands mitigation in Georgia.” 2014. Thesis, University of Georgia. Accessed April 15, 2021.
http://hdl.handle.net/10724/23492.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Phillips, Willard S. “A conjoint analysis of consumer preferences for wetlands mitigation in Georgia.” 2014. Web. 15 Apr 2021.
Vancouver:
Phillips WS. A conjoint analysis of consumer preferences for wetlands mitigation in Georgia. [Internet] [Thesis]. University of Georgia; 2014. [cited 2021 Apr 15].
Available from: http://hdl.handle.net/10724/23492.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Phillips WS. A conjoint analysis of consumer preferences for wetlands mitigation in Georgia. [Thesis]. University of Georgia; 2014. Available from: http://hdl.handle.net/10724/23492
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Georgia
20.
Ashby, Heather Louise.
A spatial model ranking the potential for mitigation sites based on ecosystem functions.
Degree: 2014, University of Georgia
URL: http://hdl.handle.net/10724/27377
► Wetland mitigation can be accomplished through the enhancement, protection, creation or restoration of wetlands. In coastal regions, mitigated sites are at risk of being lost…
(more)
▼ Wetland mitigation can be accomplished through the enhancement, protection, creation or restoration of wetlands. In coastal regions, mitigated sites are at risk of being lost or degraded due to the land use changes that occur in reponse to
sea-level rise, loss of shoreline stability, and human alterations. To improve the success of mitigated coastal wetlands, it is imperative that the future risks to these sites be known. To accomplish this, a future land use map is created for the year
2030 for coastal Georgia which is used in a risk assessment to identify 1) the wetlands that are most at risk of being lost or degraded in the year 2030, 2) where sites with the greatest potential for benefiting wetland functions occur in the landscape
for the years 2008 and 2030, and 3) where the potential will increase the most during this time frame.
Subjects/Keywords: Wetlands; Wetland Mitigation; Coastal Wetlands; GIS; Spatial Analysis Modeling; SLAMM; SLEUTH; AMBUR; Future Land Use; Marshes; Sea Level Rise; Shoreline Stability
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ashby, H. L. (2014). A spatial model ranking the potential for mitigation sites based on ecosystem functions. (Thesis). University of Georgia. Retrieved from http://hdl.handle.net/10724/27377
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Ashby, Heather Louise. “A spatial model ranking the potential for mitigation sites based on ecosystem functions.” 2014. Thesis, University of Georgia. Accessed April 15, 2021.
http://hdl.handle.net/10724/27377.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Ashby, Heather Louise. “A spatial model ranking the potential for mitigation sites based on ecosystem functions.” 2014. Web. 15 Apr 2021.
Vancouver:
Ashby HL. A spatial model ranking the potential for mitigation sites based on ecosystem functions. [Internet] [Thesis]. University of Georgia; 2014. [cited 2021 Apr 15].
Available from: http://hdl.handle.net/10724/27377.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Ashby HL. A spatial model ranking the potential for mitigation sites based on ecosystem functions. [Thesis]. University of Georgia; 2014. Available from: http://hdl.handle.net/10724/27377
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Louisiana State University
21.
Boudreaux, Jacques Pierre.
Shear strength evaluation of an erosional soil system at Fourchon Beach.
Degree: MSCE, Civil and Environmental Engineering, 2012, Louisiana State University
URL: etd-07122012-232344
;
https://digitalcommons.lsu.edu/gradschool_theses/2146
► South Louisiana is vanishing. Subsidence due to relative sea level rise with erosion of weak wetland soils together produce devastating rates of land loss for…
(more)
▼ South Louisiana is vanishing. Subsidence due to relative sea level rise with erosion of weak wetland soils together produce devastating rates of land loss for this area. It is believed that high rates of erosion are due to weak strength properties of fine-grained sediments in the beaches, marshes, and other wetlands in coastal Louisiana. Wave action is known to initiate the movement of weak coastal soils in a manner that is related to the difference between the shear stresses applied by waves and the critical shear strength of erosional sediments. Direct shear tests were performed on samples obtained from the field at Fourchon Beach, Louisiana, as well as on samples that were cultivated in a known soil media within a controlled environment. The role of plant roots on soil shear strength was studied by examining changes in the shear strength of vegetated soil-root composites (SRCs). Two species were used to create SRC direct shear test specimens: Scirpus americanus and Scirpus acutus. Samples were grown in fully-saturated conditions in a greenhouse, and tests were conducted on samples after 4, 8, and 12 weeks of growth after planting. A matured sample of Scirpus acutus, which contained a highly developed root system, was also sampled and tested. Both species were observed to add benefits in shear strength with increased effectiveness after longer growth periods. Findings indicated that Scirpus americanus, being more resilient during cultivation and having higher growth rates, provided the most benefits by increasing shear strength upwards of 30 percent in as little as eight weeks after planting. Field samples were obtained from five areas at Fourchon Beach across an elevational gradient from the intertidal shoreline area to the heavily vegetated marshes containing a variety of plants, specifically Avicennia germinans and Spartina alterniflora. A sample of relict marsh clay was also obtained from the shoreline area and tested in addition to beach sand that had been treated by workers in the aftermath of the BP oil spill. Erosion rates were calculated using a method developed for fine-grained estuarine sediments.
Subjects/Keywords: coastal erosion; land loss; coastal Louisiana; erosion; wetlands; Fourchon; Fourchon Beach; Lafourche Parish; shear strength; soil shear strength; Louisiana
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Manager
APA (6th Edition):
Boudreaux, J. P. (2012). Shear strength evaluation of an erosional soil system at Fourchon Beach. (Masters Thesis). Louisiana State University. Retrieved from etd-07122012-232344 ; https://digitalcommons.lsu.edu/gradschool_theses/2146
Chicago Manual of Style (16th Edition):
Boudreaux, Jacques Pierre. “Shear strength evaluation of an erosional soil system at Fourchon Beach.” 2012. Masters Thesis, Louisiana State University. Accessed April 15, 2021.
etd-07122012-232344 ; https://digitalcommons.lsu.edu/gradschool_theses/2146.
MLA Handbook (7th Edition):
Boudreaux, Jacques Pierre. “Shear strength evaluation of an erosional soil system at Fourchon Beach.” 2012. Web. 15 Apr 2021.
Vancouver:
Boudreaux JP. Shear strength evaluation of an erosional soil system at Fourchon Beach. [Internet] [Masters thesis]. Louisiana State University; 2012. [cited 2021 Apr 15].
Available from: etd-07122012-232344 ; https://digitalcommons.lsu.edu/gradschool_theses/2146.
Council of Science Editors:
Boudreaux JP. Shear strength evaluation of an erosional soil system at Fourchon Beach. [Masters Thesis]. Louisiana State University; 2012. Available from: etd-07122012-232344 ; https://digitalcommons.lsu.edu/gradschool_theses/2146
SUNY College at Brockport
22.
Heminway, Aaron W.
Response of Typha x glauca to Phosphorus, Hydrology, and Land Use in Lake Ontario Coastal Wetlands.
Degree: MS, Environmental Science and Biology, 2016, SUNY College at Brockport
URL: https://digitalcommons.brockport.edu/env_theses/106
► A combination of field sampling, a greenhouse growth experiment, and GIS was used to quantify the effects of phosphorus, hydroperiod, watershed land use, and…
(more)
▼ A combination of field sampling, a greenhouse growth experiment, and GIS was used to quantify the effects of phosphorus, hydroperiod, watershed land use, and wetland hydrogeomorphic classification on the invasive cattail Typha x glauca Godron across 18 Lake Ontario coastal wetlands. To determine T. x glauca density and frequency in coastal wetlands, vegetation was sampled in 1 - m2 quadrats along stratified random transects, each of which crossed three wetland vegetation zones when present ( submergent, emergent, and wet meadow). In each wetland, water samples were collected and shipped for laboratory analysis to determine total phosphorus concentrations in wetland waters. For each wetland, ESRI ArcGIS was used to determine its watershed area, watershed land use as croplands, and length of lotic surface waters. A greenhouse growth experiment using a full factorial random block design was used to investigate the effects of variable hydroperiod and phosphorus concentrations on T. x glauca biomass allocation. Multiple linear regressions revealed that frequency of occurrence of T. x glauca cannot be predicted by the individual and combined effects of wetland water mean total phosphorus (mg/L) or croplands in wetland watersheds (p = 0.345), However, these variables were predictors of increases in cattail density (p = 0.021). Increases in mean water total phosphorus concentrations can be predicted by the combined effect of wetland watershed croplands and total length of watershed lotic waters (p = 0.002), but individually, croplands were the only significant predictor (p = 0.001; lotic waters,p = 0.414). Wetland hydrogeomorphic classification did not predict cattail density (ANOVA, p = 0.389) or frequency (p = 0.665). Wetland mean total phosphorus concentrations increased from lacustrine to riverine wetland systems (p = 0.040) but there were no differences between riverine and barrier wetlands (p = 0.598) or between lacustrine and barrier wetlands (p = 0.169). A full factorial T. x glauca growth experiment with variable hydroperiods and phosphorus concentrations was performed over the course of eight weeks. As assessed by MANOVA, there was an increase in above- and below-ground biomass allocation for the simple main effects of hydroperiod (p < 0.000), phosphorus concentrations (p < 0.000), and their interaction (p < 0.000). Multiple pairwise interaction comparisons within block hydrology between nutrient treatments results revealed that as hydroperiod and phosphorus concentrations increased, the more pronounced the differences in their interaction became. Overall, results of this study demonstrated that increasing concentrations of phosphorus positively influenced cattail growth in a controlled setting as well as in Lake Ontario coastal wetlands. Although phosphorus positively influenced growth, hydrologic…
Subjects/Keywords: invasive species; cattail; Lake Ontario; coastal wetlands; phosphorus; WRT; Environmental Sciences; Water Resource Management
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APA ·
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Manager
APA (6th Edition):
Heminway, A. W. (2016). Response of Typha x glauca to Phosphorus, Hydrology, and Land Use in Lake Ontario Coastal Wetlands. (Thesis). SUNY College at Brockport. Retrieved from https://digitalcommons.brockport.edu/env_theses/106
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Heminway, Aaron W. “Response of Typha x glauca to Phosphorus, Hydrology, and Land Use in Lake Ontario Coastal Wetlands.” 2016. Thesis, SUNY College at Brockport. Accessed April 15, 2021.
https://digitalcommons.brockport.edu/env_theses/106.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Heminway, Aaron W. “Response of Typha x glauca to Phosphorus, Hydrology, and Land Use in Lake Ontario Coastal Wetlands.” 2016. Web. 15 Apr 2021.
Vancouver:
Heminway AW. Response of Typha x glauca to Phosphorus, Hydrology, and Land Use in Lake Ontario Coastal Wetlands. [Internet] [Thesis]. SUNY College at Brockport; 2016. [cited 2021 Apr 15].
Available from: https://digitalcommons.brockport.edu/env_theses/106.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Heminway AW. Response of Typha x glauca to Phosphorus, Hydrology, and Land Use in Lake Ontario Coastal Wetlands. [Thesis]. SUNY College at Brockport; 2016. Available from: https://digitalcommons.brockport.edu/env_theses/106
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Louisiana State University
23.
Kandalepas, Demetra.
Effects of coastal dynamics on colonization of Louisiana wetland plants by fungal endophytes.
Degree: PhD, 2011, Louisiana State University
URL: etd-01252012-112627
;
https://digitalcommons.lsu.edu/gradschool_dissertations/1141
► This dissertation explores the effects of stress and disturbance on fungal endophyte diversity and composition in obligate wetland plants in southeast Louisiana. I explored two…
(more)
▼ This dissertation explores the effects of stress and disturbance on fungal endophyte diversity and composition in obligate wetland plants in southeast Louisiana. I explored two types of endophytes: root and foliar. Each of these groups is known to live within apparently healthy host plants without causing symptoms of disease; therefore, plants are thought to benefit from this association. Few studies, however, have shown that plants in wetlands associate with fungi. In this dissertation, I show that both root and foliar endophytes not only exist in wetland plants living in flooded and saline environments, but also are abundant within these plants. In the chapter two I explore the distribution of arbuscular mycorrhizal fungi (AMF) and dark septate endophytes (DSE) in the roots of 18 plant species. Monocots were mostly colonized by DSE, and dicots, including woody species were mostly colonized by AMF. In the third chapter, I used a mesocosm approach, to explore the effects of soil conditions on foliar endophyte diversity and composition in two wetland plant species – Sagittaria lancifolia and Taxodium distichum. Endophytes were abundant in both hosts, but S. lancifolia contained higher diversity. In addition, endophyte composition was shaped by different factors in each host: water quality shaped communities in T. distichum, and hydrology in S. lancifolia. In the fourth chapter I expand on the third chapter by including four more plant species that range from highly salt tolerant to intolerant and simulated a category 3 hurricane to explore its effects on endophytes within each plant species. I found that endophytes of grasses, irrespective of salt tolerance, did not change in diversity or composition following the simulated hurricane. Endophyte diversity T. distichum did not change, but composition was dependent on habitat type. Sagittaria lancifolia’s endophyte diversity decreased with hurricane conditions, but overall composition did not change. The results of these studies not only demonstrate that endophytes are present in wetland plants, but that they are abundant and common. Further, I show that host identity interacts with environmental conditions to influence diversity and composition and that habitat type is important in determining the outcome of endophyte composition after hurricanes.
Subjects/Keywords: Louisiana; Taxodium distichum; Sagittaria lancifolia; Endophytes; Coastal Wetlands; graminoids; sea-level rise; hurricanes
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APA (6th Edition):
Kandalepas, D. (2011). Effects of coastal dynamics on colonization of Louisiana wetland plants by fungal endophytes. (Doctoral Dissertation). Louisiana State University. Retrieved from etd-01252012-112627 ; https://digitalcommons.lsu.edu/gradschool_dissertations/1141
Chicago Manual of Style (16th Edition):
Kandalepas, Demetra. “Effects of coastal dynamics on colonization of Louisiana wetland plants by fungal endophytes.” 2011. Doctoral Dissertation, Louisiana State University. Accessed April 15, 2021.
etd-01252012-112627 ; https://digitalcommons.lsu.edu/gradschool_dissertations/1141.
MLA Handbook (7th Edition):
Kandalepas, Demetra. “Effects of coastal dynamics on colonization of Louisiana wetland plants by fungal endophytes.” 2011. Web. 15 Apr 2021.
Vancouver:
Kandalepas D. Effects of coastal dynamics on colonization of Louisiana wetland plants by fungal endophytes. [Internet] [Doctoral dissertation]. Louisiana State University; 2011. [cited 2021 Apr 15].
Available from: etd-01252012-112627 ; https://digitalcommons.lsu.edu/gradschool_dissertations/1141.
Council of Science Editors:
Kandalepas D. Effects of coastal dynamics on colonization of Louisiana wetland plants by fungal endophytes. [Doctoral Dissertation]. Louisiana State University; 2011. Available from: etd-01252012-112627 ; https://digitalcommons.lsu.edu/gradschool_dissertations/1141
Louisiana State University
24.
Brantley, Christopher.
Nutrient interactions, plant productivity, soil accretion, and policy implications of wetland enhancements in coastal Louisiana.
Degree: PhD, Oceanography and Atmospheric Sciences and Meteorology, 2005, Louisiana State University
URL: etd-10242005-143348
;
https://digitalcommons.lsu.edu/gradschool_dissertations/1753
► Ecosystem response, stakeholder interactions, and the policy implications to a wetland assimilation project are reported here for the City of Mandeville, St. Tammany Parish, Louisiana.…
(more)
▼ Ecosystem response, stakeholder interactions, and the policy implications to a wetland assimilation project are reported here for the City of Mandeville, St. Tammany Parish, Louisiana. Between September 1998 and October 2004, input of secondarily treated wastewater effluent was found to have a net positive effect on the downstream wetland receiving basin. The major hydrologic inputs to the system are the effluent, precipitation, and back water flooding from Lake Pontchartrain. Nutrient levels were generally low except in the immediate vicinity of the outfall and removal efficiencies of N and P ranged from 44% to 87% and 25% to 93%, respectively. On average, TN and TP removal efficiencies were 59% and 69%, respectively, for the study period. Aboveground net primary production of the freshwater forest system was high downstream of the effluent discharge. Also downstream of the outfall, accretion rates were double the rate of relative sea level rise in the area. Re-direction of nutrient-enhanced effluents from open water bodies to wetland ecosystems may maintain plant productivity, sequester carbon, maintain coastal wetland elevations in response to sea-level rise in addition to improving overall surface water quality, reducing energy use, and increasing financial savings. Stakeholder interactions can often be as difficult to resolve as scientific questions. Further progress to improve water quality and regulate point source pollution often requires adjustment in policy strategies to enhance society's capacity to deal with more problematic issues of non-point source pollution. High cost and economic impacts on communities will propel the search for cost-effective water quality management. In addition, cooperation between the public and private sectors can build trust, consensus, and the ability to implement coastal resource projects. In this Mandeville, Louisiana, case, the use of science-driven solutions in natural resource management was successful in developing cost savings and coastal wetland preservation from the renewable ecological engineering technology of wetland wastewater assimilation. Integration of a national carbon and wetland policy may stimulate investments in energy efficiency and wetland enhancement. The next step must be the development of an annual revenue source to encourage state and private landowners to work together by providing incentive to promote wetland enhancement.
Subjects/Keywords: louisiana; coastal wetlands; nutrients; wetland assimilation
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APA (6th Edition):
Brantley, C. (2005). Nutrient interactions, plant productivity, soil accretion, and policy implications of wetland enhancements in coastal Louisiana. (Doctoral Dissertation). Louisiana State University. Retrieved from etd-10242005-143348 ; https://digitalcommons.lsu.edu/gradschool_dissertations/1753
Chicago Manual of Style (16th Edition):
Brantley, Christopher. “Nutrient interactions, plant productivity, soil accretion, and policy implications of wetland enhancements in coastal Louisiana.” 2005. Doctoral Dissertation, Louisiana State University. Accessed April 15, 2021.
etd-10242005-143348 ; https://digitalcommons.lsu.edu/gradschool_dissertations/1753.
MLA Handbook (7th Edition):
Brantley, Christopher. “Nutrient interactions, plant productivity, soil accretion, and policy implications of wetland enhancements in coastal Louisiana.” 2005. Web. 15 Apr 2021.
Vancouver:
Brantley C. Nutrient interactions, plant productivity, soil accretion, and policy implications of wetland enhancements in coastal Louisiana. [Internet] [Doctoral dissertation]. Louisiana State University; 2005. [cited 2021 Apr 15].
Available from: etd-10242005-143348 ; https://digitalcommons.lsu.edu/gradschool_dissertations/1753.
Council of Science Editors:
Brantley C. Nutrient interactions, plant productivity, soil accretion, and policy implications of wetland enhancements in coastal Louisiana. [Doctoral Dissertation]. Louisiana State University; 2005. Available from: etd-10242005-143348 ; https://digitalcommons.lsu.edu/gradschool_dissertations/1753
Louisiana State University
25.
Xu, Baifu.
An hedonic analysis of southwestern Louisiana wetland prices using GIS.
Degree: MS, Agricultural Economics, 2007, Louisiana State University
URL: etd-07122007-214128
;
https://digitalcommons.lsu.edu/gradschool_theses/3475
► Louisiana is the beneficiary of more than 30% of the U.S. coastal wetlands, but the state’s wetland loss accounts for about 90% of the total…
(more)
▼ Louisiana is the beneficiary of more than 30% of the U.S. coastal wetlands, but the state’s wetland loss accounts for about 90% of the total throughout the continental United States. The Coastal Wetlands Planning, Protection and Restoration Act of 1990 and the 1.9 billion that has recently been dedicated by Congress for coastal restoration activities will certainly aid in restoration efforts. However, these dedicated funds are but a small fraction of the total monies that will be required to maintain/restore Louisiana’s degraded wetlands. Recent estimates suggest restoration activities will cost, at a minimum, about 14 billion. The research, based on 119 wetland property transactions throughout Southwest Louisiana, develops an hedonic model which relates price to various property characteristics. These characteristics include type of property (i.e., fresh marsh, intermediate marsh, brackish and saline marsh, open water, and “other” property), distance from the nearest road, distance from the coast, and whether the property is in an area where projected wetland loss during the next 50 years is anticipated. Results indicate that fresh marsh and “other” land (this is a “catchall” category for property that is not specifically delineated as wetlands or open water) is valued more than open water (on a per acre basis) in the private market. However, intermediate marsh is valued less than open water in the private market. Depending upon the model specification, brackish and saline marsh is valued in the private market as either higher than open water or the same as open water (in a statistical sense). Results further suggest that buyers will, at least to some extent, discount properties in those areas where future wetland loss is anticipated (i.e., prices of properties in these areas are less after controlling for the influence of all other factors). This discounting increases as the rate of projected loss increases. Whether this discounting of future losses reflects previous losses remains untested.
Subjects/Keywords: private market; coastal wetlands; property price
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APA (6th Edition):
Xu, B. (2007). An hedonic analysis of southwestern Louisiana wetland prices using GIS. (Masters Thesis). Louisiana State University. Retrieved from etd-07122007-214128 ; https://digitalcommons.lsu.edu/gradschool_theses/3475
Chicago Manual of Style (16th Edition):
Xu, Baifu. “An hedonic analysis of southwestern Louisiana wetland prices using GIS.” 2007. Masters Thesis, Louisiana State University. Accessed April 15, 2021.
etd-07122007-214128 ; https://digitalcommons.lsu.edu/gradschool_theses/3475.
MLA Handbook (7th Edition):
Xu, Baifu. “An hedonic analysis of southwestern Louisiana wetland prices using GIS.” 2007. Web. 15 Apr 2021.
Vancouver:
Xu B. An hedonic analysis of southwestern Louisiana wetland prices using GIS. [Internet] [Masters thesis]. Louisiana State University; 2007. [cited 2021 Apr 15].
Available from: etd-07122007-214128 ; https://digitalcommons.lsu.edu/gradschool_theses/3475.
Council of Science Editors:
Xu B. An hedonic analysis of southwestern Louisiana wetland prices using GIS. [Masters Thesis]. Louisiana State University; 2007. Available from: etd-07122007-214128 ; https://digitalcommons.lsu.edu/gradschool_theses/3475
Louisiana State University
26.
Liwa, Evaristo Joseph.
A neural network model for classification of coastal wetlands vegetation structure with Moderate Resolution Imaging Spectro-radiometer (MODIS) data.
Degree: PhD, Oceanography and Atmospheric Sciences and Meteorology, 2006, Louisiana State University
URL: etd-03302006-122704
;
https://digitalcommons.lsu.edu/gradschool_dissertations/4013
► Mapping coastal marshes is an important component in the management of coastal environments. Classification of marshes using remote sensing data has traditionally been performed by…
(more)
▼ Mapping coastal marshes is an important component in the management of coastal environments. Classification of marshes using remote sensing data has traditionally been performed by employing either parametric supervised classification algorithms or unsupervised classification algorithms. The implementation of these conversional classification methods is based on the underlying distributions concerning the probability density functions (PDF). Neural networks provide a practical approach to this classification because they are essentially non-parametric data transformations that are not restricted by any underlying assumptions. The major objective of this study was to evaluate the ability of neural networks using Moderate Resolution Imaging Spectro-radiometer (MODIS) data to classify coastal marshes based on the phenelogical stages of plants. The first stage of the study was to develop a neural network model. The analysis has shown that six day images with eight input variables each are required to perform the classification. The variables are: MODIS bands - the near infrared and the near infrared composite bands, biophysical variables – the leaf area index (LAI) and the fraction of photosynthetically active radiation (fPAR). Other variables are vegetation indices – the normalized difference vegetation index (NDVI), the enhanced vegetation index (EVI), and the wetness index (WI), and, the day time land surface temperature. The near infrared and the wetness index were found to be the strongest predictor variables in the classification. Six hidden neurons and one output neuron were required in the neural network model for the output of six classes. The second stage of the dissertation was the model application. Images from four years: 2001, 2002, 2003, and 2004 were classified using the model. Accuracy assessment of the classification indicated that neural network techniques using MODIS data could achieve an accuracy of over 80% (at 0.95 confidence level). Using the classified images change detection was performed to determine the loss and gain of four marsh types; saline marsh, brackish marsh, intermediate marsh, and, fresh water marsh found in the south eastern coastal areas of Louisiana. The greatest gain was in the intermediate marsh, 3.0% of the study area, and the greatest loss was in the saline marsh, 3.8% of the study area.
Subjects/Keywords: classification; MODIS; neural networks; coastal wetlands
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APA (6th Edition):
Liwa, E. J. (2006). A neural network model for classification of coastal wetlands vegetation structure with Moderate Resolution Imaging Spectro-radiometer (MODIS) data. (Doctoral Dissertation). Louisiana State University. Retrieved from etd-03302006-122704 ; https://digitalcommons.lsu.edu/gradschool_dissertations/4013
Chicago Manual of Style (16th Edition):
Liwa, Evaristo Joseph. “A neural network model for classification of coastal wetlands vegetation structure with Moderate Resolution Imaging Spectro-radiometer (MODIS) data.” 2006. Doctoral Dissertation, Louisiana State University. Accessed April 15, 2021.
etd-03302006-122704 ; https://digitalcommons.lsu.edu/gradschool_dissertations/4013.
MLA Handbook (7th Edition):
Liwa, Evaristo Joseph. “A neural network model for classification of coastal wetlands vegetation structure with Moderate Resolution Imaging Spectro-radiometer (MODIS) data.” 2006. Web. 15 Apr 2021.
Vancouver:
Liwa EJ. A neural network model for classification of coastal wetlands vegetation structure with Moderate Resolution Imaging Spectro-radiometer (MODIS) data. [Internet] [Doctoral dissertation]. Louisiana State University; 2006. [cited 2021 Apr 15].
Available from: etd-03302006-122704 ; https://digitalcommons.lsu.edu/gradschool_dissertations/4013.
Council of Science Editors:
Liwa EJ. A neural network model for classification of coastal wetlands vegetation structure with Moderate Resolution Imaging Spectro-radiometer (MODIS) data. [Doctoral Dissertation]. Louisiana State University; 2006. Available from: etd-03302006-122704 ; https://digitalcommons.lsu.edu/gradschool_dissertations/4013
University of South Carolina
27.
Springer, Abby Lynn.
Depositional History of Thousand Acre Marsh From Geophysical and Sedimentological Analyses.
Degree: PhD, Earth and Ocean Sciences, 2011, University of South Carolina
URL: https://scholarcommons.sc.edu/etd/1342
► Ground Penetrating Radar, radiocarbon dating and core analyses were combined within this investigation to determine the shallow geologic framework and the recent depositional history…
(more)
▼ Ground Penetrating Radar, radiocarbon dating and core analyses were combined within this investigation to determine the shallow geologic framework and the recent depositional history of Thousand Acre Marsh. Analyses of these data revealed the role of Thousand Acre Marsh as a record keeper of subsurface sediments and the effects of adjacent environments, North Inlet Marsh system, Winyah Bay estuary, river migration and North Island spit, on the formation of this present day brackish marsh.
Brackish marshes are dynamic and important
coastal ecosystems, both for habitats to flora and fauna and economically for state tourism. The knowledge of present day and past changes within these environments is important to future management of these
coastal environments. Thousand Acre Marsh is located 5 miles east of Georgetown, SC along the South Carolina lower
coastal plain. Recent changes to local geology such as the uplift of the Cape Fear Arch, the migration of the Pee Dee River and the elongation of the North Island spit have all played a part in the formation of Thousand Acre Marsh and their impacts can be identified within the shallow subsurface environments. The construction of a stratigraphic framework from lithological analyses and radiocarbon dating shows a laterally continuous trend of environments that portray the depositional history of this marsh. The trend begins with a swale between two relict dune ridge systems which slowly transitions to a forest environment, evidence from roots and root systems in sand facies, to a freshwater swamp suggested from dense clay with wood fragments. Next there is evidence of an alternating mudflat and freshwater marsh environments suggested from identification of alternating peat and clay layers which were formed by the migration of the Pee Dee River, to the modern day brackish marsh due to effects of sea level rise and tidal exchange within the Winyah Bay estuary. All of these environments have been identified within sediment cores, identification of geophysical reflectors and correlated with radiocarbon dating. The identified environmental changes correlate with timing of local changes in geology as suggested above. Thousand Acre Marsh is an evolving brackish marsh, due to sea level rise and influence from adjacent environments. These changes should be further investigated and continued into the future, to gather knowledge of the changing environment and to benefit
coastal managers in preserving our
coastal environments for the future.
Advisors/Committee Members: Douglas F Williams, Camelia Knapp.
Subjects/Keywords: Earth Sciences; Geology; Physical Sciences and Mathematics; coastal stratigraphy; sediments; stratigraphy; wetlands
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APA ·
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APA (6th Edition):
Springer, A. L. (2011). Depositional History of Thousand Acre Marsh From Geophysical and Sedimentological Analyses. (Doctoral Dissertation). University of South Carolina. Retrieved from https://scholarcommons.sc.edu/etd/1342
Chicago Manual of Style (16th Edition):
Springer, Abby Lynn. “Depositional History of Thousand Acre Marsh From Geophysical and Sedimentological Analyses.” 2011. Doctoral Dissertation, University of South Carolina. Accessed April 15, 2021.
https://scholarcommons.sc.edu/etd/1342.
MLA Handbook (7th Edition):
Springer, Abby Lynn. “Depositional History of Thousand Acre Marsh From Geophysical and Sedimentological Analyses.” 2011. Web. 15 Apr 2021.
Vancouver:
Springer AL. Depositional History of Thousand Acre Marsh From Geophysical and Sedimentological Analyses. [Internet] [Doctoral dissertation]. University of South Carolina; 2011. [cited 2021 Apr 15].
Available from: https://scholarcommons.sc.edu/etd/1342.
Council of Science Editors:
Springer AL. Depositional History of Thousand Acre Marsh From Geophysical and Sedimentological Analyses. [Doctoral Dissertation]. University of South Carolina; 2011. Available from: https://scholarcommons.sc.edu/etd/1342
28.
Odegard, Jenna Lynn.
The role of functional diversity in biotic resistance of
non-native fishes and invertebrates in Lake Erie coastal
wetlands.
Degree: MS, Environment and Natural Resources, 2017, The Ohio State University
URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1483612502642615
► Biological invasions are a leading cause of biodiversity declines and impairment of ecosystem function. Native assemblages that resist invasion by non-native species are frequently thought…
(more)
▼ Biological invasions are a leading cause of
biodiversity declines and impairment of ecosystem function. Native
assemblages that resist invasion by non-native species are
frequently thought to be more diverse (i.e. diversity-invasibility
hypothesis, DIH). This “biotic resistance” to non-natives by a more
diverse assemblage of native species is thought to occur through
increased interspecific competition, more fully used resources, and
less available niche space. Evidence in support of the biotic
resistance is mixed, suggesting that the DIH relationship depends
on spatial scale (e.g. “invasion paradox”); however, another factor
influencing the relationship between native and non-native species
might be how diversity is measured. Most research that examines
whether more diverse assemblages are more resistant to invasion has
typically focused on measuring taxonomic biodiversity; however,
functional diversity (e.g. feeding groups) might also be an
important factor contributing to a native assemblage’s biotic
resistance. In this study, I investigated if there is support for
DIH in fish and invertebrate assemblages in
coastal wetlands along
the western basin of Lake Erie, according to taxonomic and
functional richness and diversity. I sampled native and non-native
fishes and invertebrates seasonally between 2013 and 2016. I
expected to find a negative association between native and
non-native organisms in support of DIH; however, I did not find
significant within- taxonomic group relationships. In contrast,
when investigating the association between fishes and non-native
invertebrate presence across assemblage, I found a positive
association. Explanations for these results might be related to
spatial scale of the study, the possibility of abiotic factors or
facilitation influencing invasion success, my approach to
quantifying the biotic assemblage, time since invasion, and the
statistical power. Assessing these biotic resistance trends is
important for reducing costly impacts of invasion, prioritizing
management efforts, and conserving native species.
Advisors/Committee Members: Gray, Suzanne (Advisor), Pintor, Lauren (Advisor).
Subjects/Keywords: Environmental Science; Invasion, biotic resistance, coastal wetlands, Lake Erie,
fish, invertebrates, non-native
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APA (6th Edition):
Odegard, J. L. (2017). The role of functional diversity in biotic resistance of
non-native fishes and invertebrates in Lake Erie coastal
wetlands. (Masters Thesis). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1483612502642615
Chicago Manual of Style (16th Edition):
Odegard, Jenna Lynn. “The role of functional diversity in biotic resistance of
non-native fishes and invertebrates in Lake Erie coastal
wetlands.” 2017. Masters Thesis, The Ohio State University. Accessed April 15, 2021.
http://rave.ohiolink.edu/etdc/view?acc_num=osu1483612502642615.
MLA Handbook (7th Edition):
Odegard, Jenna Lynn. “The role of functional diversity in biotic resistance of
non-native fishes and invertebrates in Lake Erie coastal
wetlands.” 2017. Web. 15 Apr 2021.
Vancouver:
Odegard JL. The role of functional diversity in biotic resistance of
non-native fishes and invertebrates in Lake Erie coastal
wetlands. [Internet] [Masters thesis]. The Ohio State University; 2017. [cited 2021 Apr 15].
Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1483612502642615.
Council of Science Editors:
Odegard JL. The role of functional diversity in biotic resistance of
non-native fishes and invertebrates in Lake Erie coastal
wetlands. [Masters Thesis]. The Ohio State University; 2017. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1483612502642615
29.
Gabriel Nuto Nobrega.
Subaqueous soils of the Brazilian seagrass meadows: biogeochemistry, genesis, and classification.
Degree: 2017, University of São Paulo
URL: http://www.teses.usp.br/teses/disponiveis/11/11140/tde-26102017-143348/
► Seagrass meadows, or submerged aquatic vegetation, constitute an ecosystem with great importance to the coastal zone, and may be characterized as the most productive ecosystem…
(more)
▼ Seagrass meadows, or submerged aquatic vegetation, constitute an ecosystem with great importance to the coastal zone, and may be characterized as the most productive ecosystem on Earth. In addition to the provision of habitat for a wide variety of species, protection of the coastal zone and production of organic matter base for the marine trophic web, these environments have been recognized for their great capacity to store organic carbon in their soils and are, therefore, a priority area for the mitigation of increased carbon in the atmosphere. In spite of the great importance of these areas, there is little information about the soils of these ecosystems, mainly using an approach based on the genesis of its soils. Thus, this thesis covers 4 chapters aiming to: (i) evaluate changes in the characteristics of seagrass meadows publications in the last 50 years, identify knowledge gaps and priorities for future studies; (ii) to discuss the paradoxical
lack of information on Brazilian seagrass meadows soils, stimulate studies to understand their characteristics and contribute to the correct inclusion of seagrass meadows soils in the Brazilian System for Soil Classification; (iii) characterize and investigate soils of seagrass meadows along the Brazilian coast, in order to understand the pedogenetic processes within these soils; and (iv) identify variations in the biogeochemical processes related to the dynamics of Fe, Mn and S along the Brazilian coast, aiming to provide an improved basis for the understanding of this ecosystem and subsidies for the use and protection policies of these coastal areas.
As pradarias marinhas (seagrasses), ou vegetação aquática submersa, constituem um ecossistema de grande importância para a zona costeira, caracterizando-se como o ecossistema mais produtivo da Terra. Além de fornecer habitat para uma grande variedade de espécies, favorecer a estabilidade costeira e produzir matéria orgânica base
para a teia trófica marinha, estes ambientes têm sido reconhecidos pela grande capacidade de armazenar carbono orgânico em seus solos e são, portanto, prioritários para as medidas de mitigação do aumento de carbono na atmosfera. Apesar da grande importância desse ecossitema, há pouca informação a respeito dos solos onde estes ecossistemas estão inseridos, principalmente utilizando uma abordagem baseada na gênese dos solos. Esta tese contempla 4 capítulos cujos objetivos visam avaliar as mudanças nas características das publicações sobre pradarias marinhas nos últimos 50 anos, identificando lacunas de conhecimentos e prioridades para estudos futuros; discutir a paradoxal ausência de informação sobre os solos das pradarias marinhas do Brasil, estimulando estudos para o entendimento de suas características e contribuindo para a correta inclusão de solos de pradarias marinhas no Sistema Brasileiro de Classificação de solos; caracterizar e investigar os solos das pradarias marinhas ao
longo da costa brasileira, com vistas a entender os processos pedogenéticos atuantes nestes solos; e…
Advisors/Committee Members: Tiago Osorio Ferreira, Daniel Gorman, Xosé Luis Otero Pérez.
Subjects/Keywords: Áreas úmidas costeiras; Blue carbon; Pedogênese; Solos submersos; Blue Carbon; Coastal wetlands; Pedogenesis; Submerged soils
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APA (6th Edition):
Nobrega, G. N. (2017). Subaqueous soils of the Brazilian seagrass meadows: biogeochemistry, genesis, and classification. (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/11/11140/tde-26102017-143348/
Chicago Manual of Style (16th Edition):
Nobrega, Gabriel Nuto. “Subaqueous soils of the Brazilian seagrass meadows: biogeochemistry, genesis, and classification.” 2017. Doctoral Dissertation, University of São Paulo. Accessed April 15, 2021.
http://www.teses.usp.br/teses/disponiveis/11/11140/tde-26102017-143348/.
MLA Handbook (7th Edition):
Nobrega, Gabriel Nuto. “Subaqueous soils of the Brazilian seagrass meadows: biogeochemistry, genesis, and classification.” 2017. Web. 15 Apr 2021.
Vancouver:
Nobrega GN. Subaqueous soils of the Brazilian seagrass meadows: biogeochemistry, genesis, and classification. [Internet] [Doctoral dissertation]. University of São Paulo; 2017. [cited 2021 Apr 15].
Available from: http://www.teses.usp.br/teses/disponiveis/11/11140/tde-26102017-143348/.
Council of Science Editors:
Nobrega GN. Subaqueous soils of the Brazilian seagrass meadows: biogeochemistry, genesis, and classification. [Doctoral Dissertation]. University of São Paulo; 2017. Available from: http://www.teses.usp.br/teses/disponiveis/11/11140/tde-26102017-143348/
Mahatma Gandhi University
30.
Shaju, S.
Floristic studies of the coastal wetlands of Southern
Kerala;.
Degree: Botany, 2014, Mahatma Gandhi University
URL: http://shodhganga.inflibnet.ac.in/handle/10603/28495
newline
Bibliography p. 164-173, Publications p.
174-175
Advisors/Committee Members: Antony, V T.Subjects/Keywords: Coastal area; Floristic study; Southern Kerala; Taxonomy; Wetlands
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Manager
APA (6th Edition):
Shaju, S. (2014). Floristic studies of the coastal wetlands of Southern
Kerala;. (Thesis). Mahatma Gandhi University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/28495
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Shaju, S. “Floristic studies of the coastal wetlands of Southern
Kerala;.” 2014. Thesis, Mahatma Gandhi University. Accessed April 15, 2021.
http://shodhganga.inflibnet.ac.in/handle/10603/28495.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Shaju, S. “Floristic studies of the coastal wetlands of Southern
Kerala;.” 2014. Web. 15 Apr 2021.
Vancouver:
Shaju S. Floristic studies of the coastal wetlands of Southern
Kerala;. [Internet] [Thesis]. Mahatma Gandhi University; 2014. [cited 2021 Apr 15].
Available from: http://shodhganga.inflibnet.ac.in/handle/10603/28495.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Shaju S. Floristic studies of the coastal wetlands of Southern
Kerala;. [Thesis]. Mahatma Gandhi University; 2014. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/28495
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
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Open Access Theses and Dissertations
