subject:(wetlands)

Rutgers University

1. Tripathee, Rajan, 1975-. Controls affecting methane fluxes in restored and natural tidal wetlands.

Degree: PhD, Biology, 2014, Rutgers University

URL: https://rucore.libraries.rutgers.edu/rutgers-lib/45674/

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Natural wetlands emit one third of global methane (CH4), the second most important greenhouse gas after carbon dioxide (CO2). However, there is a huge uncertainty… (more)

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Natural wetlands emit one third of global methane (CH4), the second most important greenhouse gas after carbon dioxide (CO2). However, there is a huge uncertainty about regional and global CH4 emission estimates, because of the estimation of CH4 emissions for large areas based on the CH4 flux measurement made in highly heterogeneous, poorly mapped small areas. But, within a small area of wetland, there can be a huge spatial variation in CH4 flux due to spatial heterogeneity. Therefore, for better understanding of CH4 dynamics of a wetland, CH4 flux measurement should be made in a variety of microsites of a wetland covering different scales, vegetation, and heterogeneity of the sites. Our two-year CH4 flux measurements from two microsites from each of three wetlands of New Jersey Meadowlands will help to refine CH4 budget of low salinity marshes, which have a large uncertainty about their CH4 budget. The annual CH4 flux in a restored high marsh site varied from 1.8 (Spartina patens marsh) - 26.6 (Phragmites australis marsh) g CH4 m-2 yr-1. The S. alterniflora marsh and mud flat area of another restored low marsh, emitted 15.6 and 7.5 g CH4 m-2 yr-1, respectively. The annual emission of CH4 for a S. patens marsh and a P. australis marsh at a natural high marsh site were 2.7 and 12.6 g CH4 m-2 yr-1, respectively. We also investigated relationships between CH4 flux and various physical factors including air and soil temperature, net radiation, and vapor pressure deficit (VPD). Presence of most of the belowground biomasses close to the soil surface suggests that most of the effect of belowground biomass on CH4 dynamics occurs close to soil and atmosphere interface. Investigations of belowground biomass distribution, root and rhizome characteristics as well as leaf area index (LAI), in this study aid modeling CH4 and other greenhouse gas transport. There was higher CH4 emission during incoming tide than during outgoing tide in a mud flat microsite; however, we did not find a relationship between tidal water depth difference and CH4 flux in vegetated areas. The weak, but positive relationship between CH4 flux and VPD in vegetated areas suggest stomatal control on CH4 flux.

Advisors/Committee Members: Schäfer, Karina VR (chair), Holzapfel, Claus (internal member), Vanderklein, Dirk (internal member), Jaffe, Peter (outside member).

Subjects/Keywords: Methane – Environmental aspects; Wetlands – New Jersey

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APA (6^th Edition):

Tripathee, Rajan, 1. (2014). Controls affecting methane fluxes in restored and natural tidal wetlands. (Doctoral Dissertation). Rutgers University. Retrieved from https://rucore.libraries.rutgers.edu/rutgers-lib/45674/

Chicago Manual of Style (16^th Edition):

Tripathee, Rajan, 1975-. “Controls affecting methane fluxes in restored and natural tidal wetlands.” 2014. Doctoral Dissertation, Rutgers University. Accessed December 15, 2019. https://rucore.libraries.rutgers.edu/rutgers-lib/45674/.

MLA Handbook (7^th Edition):

Tripathee, Rajan, 1975-. “Controls affecting methane fluxes in restored and natural tidal wetlands.” 2014. Web. 15 Dec 2019.

Vancouver:

Tripathee, Rajan 1. Controls affecting methane fluxes in restored and natural tidal wetlands. [Internet] [Doctoral dissertation]. Rutgers University; 2014. [cited 2019 Dec 15]. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/45674/.

Council of Science Editors:

Tripathee, Rajan 1. Controls affecting methane fluxes in restored and natural tidal wetlands. [Doctoral Dissertation]. Rutgers University; 2014. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/45674/

Florida International University

2. 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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APA (6^th 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 (16^th 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 December 15, 2019. https://digitalcommons.fiu.edu/etd/3716 ; 10.25148/etd.FIDC004084 ; FIDC004084.

MLA Handbook (7^th Edition):

Mazzei, Viviana. “Diatoms as tools for inferring changing environmental gradients in coastal, freshwater wetlands threatened by saltwater intrusion.” 2018. Web. 15 Dec 2019.

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 2019 Dec 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

Arizona State University

3. Ramos, Jorge. Methane and Nitrous Oxide Fluxes from Water, Plants, and Soils of a Constructed Treatment Wetland in Phoenix, AZ.

Degree: Biology, 2017, Arizona State University

URL: http://repository.asu.edu/items/44312

► Constructed treatment wetlands (CTW) have been a cost-efficient technological solution to treat different types of wastewater but may also be sources of emitters of methane… (more)

Subjects/Keywords: Ecology; Environmental science; Soil sciences; constructed wetlands; ecosystem ecology; greenhouse gases; hdyroperiod; wetlands

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APA (6^th Edition):

Ramos, J. (2017). Methane and Nitrous Oxide Fluxes from Water, Plants, and Soils of a Constructed Treatment Wetland in Phoenix, AZ. (Doctoral Dissertation). Arizona State University. Retrieved from http://repository.asu.edu/items/44312

Chicago Manual of Style (16^th Edition):

Ramos, Jorge. “Methane and Nitrous Oxide Fluxes from Water, Plants, and Soils of a Constructed Treatment Wetland in Phoenix, AZ.” 2017. Doctoral Dissertation, Arizona State University. Accessed December 15, 2019. http://repository.asu.edu/items/44312.

MLA Handbook (7^th Edition):

Ramos, Jorge. “Methane and Nitrous Oxide Fluxes from Water, Plants, and Soils of a Constructed Treatment Wetland in Phoenix, AZ.” 2017. Web. 15 Dec 2019.

Vancouver:

Ramos J. Methane and Nitrous Oxide Fluxes from Water, Plants, and Soils of a Constructed Treatment Wetland in Phoenix, AZ. [Internet] [Doctoral dissertation]. Arizona State University; 2017. [cited 2019 Dec 15]. Available from: http://repository.asu.edu/items/44312.

Council of Science Editors:

Ramos J. Methane and Nitrous Oxide Fluxes from Water, Plants, and Soils of a Constructed Treatment Wetland in Phoenix, AZ. [Doctoral Dissertation]. Arizona State University; 2017. Available from: http://repository.asu.edu/items/44312

University of Utah

4. Hultquist, Arne D. Characterizing diatom assemblages in ponded wetlands.

Degree: MS, Biology, 2011, University of Utah

URL: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/170/rec/443

► Using biological assemblages for evaluating ecosystem integrity is dependent upon robust sampling techniques that adequately characterize the species composition. This thesis evaluated the performance of… (more)

▼ Using biological assemblages for evaluating ecosystem integrity is dependent upon robust sampling techniques that adequately characterize the species composition. This thesis evaluated the performance of a wetland surface-sediment diatom collection methodology. The methodology did not result in collection of 95% of species present due to the richness of rare species in the ponded wetlands. However, because rare species added little to relative abundance, the method provided a community characterization that separated the communities based upon ponds within complexes and ponds between complexes. The mantel test indicated species distribution was dependent upon pond and complex (p<.001) with a model matrix of dissimilarity based upon 0, within pond, ½, within complex, and 1, between complex. The Multi-response Permutation Procedure supported the method’s ability to separate complexes based upon communities (p=.012). The significant p-value is attributed to the very large affect size (A=.45) which adds further credence to the method’s efficacy. Nonmetric Multidimensional Scaling ordination was used to graphically interpret the separation of ponds. The ordination shows sizeable separation between complexes, considerable separation between most ponds within a complex, and relatively little separation between replicates. Culling rare species further improved the ordination with 91% of the variance explained by 2 axes with a stress of 7.35 and a probability of obtaining that stress by a chance of p=.004. The sampling methodology also provided an assemblage that correlated with biotic and abiotic environmental variables. The Mantel test indicated correlation with water chemistry variables (r=0.564, p=0.028) after controlling for vegetation variables. Vegetation variables also correlated with the diatom community (r=0.700, p=0.001) after controlling for chemical variables. Correlation increases for groups of environmental variables emphasizes the abilities of the Mantel test and BIOENV over ordination techniques in ponded wetlands when the factors influencing the community composition are working as a consortium. However, the ordination is still useful because it indicated the diatom community corresponds with our knowledge of shallow lake ecology where biotic and abiotic factors work as a consortium. The sampling methodology could provide another tool for environmental assessment and enhance our ability to deduce wetland status and promote desired wetland biota.

Subjects/Keywords: Diatoms; Environment; Ordination; Sampling; Surface-sediment; Wetlands; Diatom assemblages

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APA (6^th Edition):

Hultquist, A. D. (2011). Characterizing diatom assemblages in ponded wetlands. (Masters Thesis). University of Utah. Retrieved from http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/170/rec/443

Chicago Manual of Style (16^th Edition):

Hultquist, Arne D. “Characterizing diatom assemblages in ponded wetlands.” 2011. Masters Thesis, University of Utah. Accessed December 15, 2019. http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/170/rec/443.

MLA Handbook (7^th Edition):

Hultquist, Arne D. “Characterizing diatom assemblages in ponded wetlands.” 2011. Web. 15 Dec 2019.

Vancouver:

Hultquist AD. Characterizing diatom assemblages in ponded wetlands. [Internet] [Masters thesis]. University of Utah; 2011. [cited 2019 Dec 15]. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/170/rec/443.

Council of Science Editors:

Hultquist AD. Characterizing diatom assemblages in ponded wetlands. [Masters Thesis]. University of Utah; 2011. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/170/rec/443

Virginia Tech

5. Hilton-Jones, David. Macroinvertebrate communities inhabiting surface mine wetlands of southwestern Virginia.

Degree: MS, Biology, 1994, Virginia Tech

URL: http://hdl.handle.net/10919/42083

► Wetland acreage in Southwest Virginia has increased because of formation of wetlands on relic surface mine benches. Prior to the Surface Mining Control and Reclamation… (more)

▼ Wetland acreage in Southwest Virginia has increased because of formation of wetlands on relic surface mine benches. Prior to the Surface Mining Control and Reclamation Act of 1977 (PL 95-87) once mining operations were completed the sites were abandoned. These areas presented novel landscapes in the rugged Allegheny Plateau physiographic region. Specifically, flat, compacted areas were created. In microdepression of these sites wetlands have formed. This study investigates the macroinvertebrate community associated wetlands of relic surface mining operations. Surveys were conducted to identify what macroinvertebrates utilize these wetlands, to determine how this community was influenced by the physio-chemical characteristics of surface mine wetlands, and to develop design specifications for creating wetlands for current restoration efforts. Nine wetlands were sampled four times between July 1993 and May 1994. Seventy genera of macroinvertebrates were identified. The wetlands represented a range of physical and chemical parameters. The taxa richness appears to be related to these differences. Canonical Correspondence Analysis suggests that for the nine wetlands, the macro invertebrate taxa distribution is best explained by physical features of depth and duration of flooding, chemical parameters of iron, manganese, and sulfate concentration, and a biotic measure of plant litter biomass. The findings of this study can be applied to ecological restoration. Wetland creation can be incorporated into current surface mine reclamation projects. To maximize the macro invertebrate community of reclamation wetlands, sites must be positioned to avoid water quality problems, excavated to have a deeper portion which will remain inundated during all or most of the year, and have a gradually sloping substrate from the deepest area to the land surface. The final criteria being indirectly related to the macroinvertebrate community by influencing the macrophyte production, richness, and litter. Advisors/Committee Members: Cairns, John Jr. (committeechair), Atkinson, Robert B. (committee member), Paterson, Robert A. (committee member), Smith, Eric P. (committee member).

Subjects/Keywords: wetlands; LD5655.V855 1994.J664

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APA (6^th Edition):

Hilton-Jones, D. (1994). Macroinvertebrate communities inhabiting surface mine wetlands of southwestern Virginia. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/42083

Chicago Manual of Style (16^th Edition):

Hilton-Jones, David. “Macroinvertebrate communities inhabiting surface mine wetlands of southwestern Virginia.” 1994. Masters Thesis, Virginia Tech. Accessed December 15, 2019. http://hdl.handle.net/10919/42083.

MLA Handbook (7^th Edition):

Hilton-Jones, David. “Macroinvertebrate communities inhabiting surface mine wetlands of southwestern Virginia.” 1994. Web. 15 Dec 2019.

Vancouver:

Hilton-Jones D. Macroinvertebrate communities inhabiting surface mine wetlands of southwestern Virginia. [Internet] [Masters thesis]. Virginia Tech; 1994. [cited 2019 Dec 15]. Available from: http://hdl.handle.net/10919/42083.

Council of Science Editors:

Hilton-Jones D. Macroinvertebrate communities inhabiting surface mine wetlands of southwestern Virginia. [Masters Thesis]. Virginia Tech; 1994. Available from: http://hdl.handle.net/10919/42083

Loyola University Chicago

6. Vail, Lane Marie. Soil Nutrient Changes Following a Typha X Glauca Invasion in a Great Lakes Coastal Wetland.

Degree: MS, Biology, 2009, Loyola University Chicago

URL: http://ecommons.luc.edu/luc_theses/552

► Invasive species are one of the major threats to the integrity and health of Great Lakes coastal wetlands. Plant invaders, such as the hybrid… (more)

Subjects/Keywords: biogeochemistry; Great Lakes; invasive species; wetlands; Ecology and Evolutionary Biology

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APA (6^th Edition):

Vail, L. M. (2009). Soil Nutrient Changes Following a Typha X Glauca Invasion in a Great Lakes Coastal Wetland. (Thesis). Loyola University Chicago. Retrieved from http://ecommons.luc.edu/luc_theses/552

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Vail, Lane Marie. “Soil Nutrient Changes Following a Typha X Glauca Invasion in a Great Lakes Coastal Wetland.” 2009. Thesis, Loyola University Chicago. Accessed December 15, 2019. http://ecommons.luc.edu/luc_theses/552.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Vail, Lane Marie. “Soil Nutrient Changes Following a Typha X Glauca Invasion in a Great Lakes Coastal Wetland.” 2009. Web. 15 Dec 2019.

Vancouver:

Vail LM. Soil Nutrient Changes Following a Typha X Glauca Invasion in a Great Lakes Coastal Wetland. [Internet] [Thesis]. Loyola University Chicago; 2009. [cited 2019 Dec 15]. Available from: http://ecommons.luc.edu/luc_theses/552.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Vail LM. Soil Nutrient Changes Following a Typha X Glauca Invasion in a Great Lakes Coastal Wetland. [Thesis]. Loyola University Chicago; 2009. Available from: http://ecommons.luc.edu/luc_theses/552

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Loyola University Chicago

7. 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: http://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 (6^th 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 http://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 (16^th 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 December 15, 2019. http://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 (7^th 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 Dec 2019.

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 2019 Dec 15]. Available from: http://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: http://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

Florida International University

8. La Hee, Josette M. The Influence of Phosphorus on Periphyton Mats from the Everglades and Three Tropical Karstic Wetlands.

Degree: Biology, 2010, Florida International University

URL: http://digitalcommons.fiu.edu/etd/251 ; 10.25148/etd.FI10081215 ; FI10081215

► The distinctive karstic, freshwater wetlands of the northern Caribbean and Central American region support the prolific growth of calcite-rich periphyton mats. Aside from the… (more)

▼ The distinctive karstic, freshwater wetlands of the northern Caribbean and Central American region support the prolific growth of calcite-rich periphyton mats. Aside from the Everglades, very little research has been conducted in these karstic wetlands, which are increasingly threatened by eutrophication. This study sought to (i) test the hypothesis that water depth and periphyton total phosphorus (TP) content are both drivers of periphyton biomass in karstic wetland habitats in Belize, Mexico and Jamaica, (ii) provide a taxonomic inventory of the periphytic diatom species in these wetlands and (iii) examine the relationship between periphyton mat TP concentration and diatom assemblage at Everglades and Caribbean locations. Periphyton biomass, nutrient and diatom assemblage data were generated from periphyton mat samples collected from shallow, marl-based wetlands in Belize, Mexico and Jamaica. These data were compared to a larger dataset collected from comparable sites within Everglades National Park. A diatom taxonomic inventory was conducted on the Caribbean samples and a combination of ordination and weighted-averaging modeling techniques were used to compare relationships between periphyton TP concentration, periphyton biomass and diatom assemblage composition among the locations. Within the Everglades, periphyton biomass showed a negative correlation with water depth and mat TP, while periphyton mat percent organic content was positively correlated with these two variables. These patterns were also exhibited within the Belize, Mexico and Jamaica locations, suggesting that water depth and periphyton TP content are both drivers of periphyton biomass in karstic wetland systems within the northern Caribbean region. A total of 146 diatom species representing 39 genera were recorded from the three Caribbean locations, including a distinct core group of species that may be endemic to this habitat type. Weighted averaging models were produced that effectively predicted mat TP concentration from diatom assemblages for both Everglades (R2=0.56) and Caribbean (R2=0.85) locations. There were, however, significant differences among Everglades and Caribbean locations with respect to species TP optima and indicator species. This suggests that although diatoms are effective indicators of water quality in these wetlands, differences in species response to water quality changes can reduce the predictive power of these indices when applied across systems. Advisors/Committee Members: Evelyn Gaiser, Jennifer Richards, Joel Trexler, James Fourqurean, Leonard Scinto.

Subjects/Keywords: Karstic wetlands; Everglades; Caribbean; periphyton; phosphorus; hydrology; diatoms

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APA (6^th Edition):

La Hee, J. M. (2010). The Influence of Phosphorus on Periphyton Mats from the Everglades and Three Tropical Karstic Wetlands. (Thesis). Florida International University. Retrieved from http://digitalcommons.fiu.edu/etd/251 ; 10.25148/etd.FI10081215 ; FI10081215

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

La Hee, Josette M. “The Influence of Phosphorus on Periphyton Mats from the Everglades and Three Tropical Karstic Wetlands.” 2010. Thesis, Florida International University. Accessed December 15, 2019. http://digitalcommons.fiu.edu/etd/251 ; 10.25148/etd.FI10081215 ; FI10081215.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

La Hee, Josette M. “The Influence of Phosphorus on Periphyton Mats from the Everglades and Three Tropical Karstic Wetlands.” 2010. Web. 15 Dec 2019.

Vancouver:

La Hee JM. The Influence of Phosphorus on Periphyton Mats from the Everglades and Three Tropical Karstic Wetlands. [Internet] [Thesis]. Florida International University; 2010. [cited 2019 Dec 15]. Available from: http://digitalcommons.fiu.edu/etd/251 ; 10.25148/etd.FI10081215 ; FI10081215.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

La Hee JM. The Influence of Phosphorus on Periphyton Mats from the Everglades and Three Tropical Karstic Wetlands. [Thesis]. Florida International University; 2010. Available from: http://digitalcommons.fiu.edu/etd/251 ; 10.25148/etd.FI10081215 ; FI10081215

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Florida International University

9. Schulte, Nicholas O. Controls on Benthic Microbial Community Structure and Assembly in a Karstic Coastal Wetland.

Degree: MS, Biology, 2016, Florida International University

URL: http://digitalcommons.fiu.edu/etd/2447 ; 10.25148/etd.FIDC000233 ; FIDC000233

► The assembly mechanisms underlying microbial community abundance, biotic interactions, and diversity over space and time are unresolved, particularly in benthic microbial mats distributed along… (more)

Subjects/Keywords: Biology; Diatoms; Ecology; Everglades; Wetlands; Biology; Ecology and Evolutionary Biology; Environmental Microbiology and Microbial Ecology

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APA (6^th Edition):

Schulte, N. O. (2016). Controls on Benthic Microbial Community Structure and Assembly in a Karstic Coastal Wetland. (Thesis). Florida International University. Retrieved from http://digitalcommons.fiu.edu/etd/2447 ; 10.25148/etd.FIDC000233 ; FIDC000233

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Schulte, Nicholas O. “Controls on Benthic Microbial Community Structure and Assembly in a Karstic Coastal Wetland.” 2016. Thesis, Florida International University. Accessed December 15, 2019. http://digitalcommons.fiu.edu/etd/2447 ; 10.25148/etd.FIDC000233 ; FIDC000233.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Schulte, Nicholas O. “Controls on Benthic Microbial Community Structure and Assembly in a Karstic Coastal Wetland.” 2016. Web. 15 Dec 2019.

Vancouver:

Schulte NO. Controls on Benthic Microbial Community Structure and Assembly in a Karstic Coastal Wetland. [Internet] [Thesis]. Florida International University; 2016. [cited 2019 Dec 15]. Available from: http://digitalcommons.fiu.edu/etd/2447 ; 10.25148/etd.FIDC000233 ; FIDC000233.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Schulte NO. Controls on Benthic Microbial Community Structure and Assembly in a Karstic Coastal Wetland. [Thesis]. Florida International University; 2016. Available from: http://digitalcommons.fiu.edu/etd/2447 ; 10.25148/etd.FIDC000233 ; FIDC000233

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Florida International University

10. Ontkos, Alex T. Habitat Use of Three Abundant Predatory Fish Species in the Freshwater Marshes of the Florida Everglades.

Degree: MS, Biology, 2018, Florida International University

URL: https://digitalcommons.fiu.edu/etd/3873 ; FIDC007033

► The Florida Everglades presents a model setting for studying animal-habitat relationships in a dynamic landscape that is heavily influenced by seasonal hydrology and water… (more)

Subjects/Keywords: animal movement; habitat use; everglades restoration; wetlands; fisheries; fish; Terrestrial and Aquatic Ecology

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APA (6^th Edition):

Ontkos, A. T. (2018). Habitat Use of Three Abundant Predatory Fish Species in the Freshwater Marshes of the Florida Everglades. (Thesis). Florida International University. Retrieved from https://digitalcommons.fiu.edu/etd/3873 ; FIDC007033

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Ontkos, Alex T. “Habitat Use of Three Abundant Predatory Fish Species in the Freshwater Marshes of the Florida Everglades.” 2018. Thesis, Florida International University. Accessed December 15, 2019. https://digitalcommons.fiu.edu/etd/3873 ; FIDC007033.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Ontkos, Alex T. “Habitat Use of Three Abundant Predatory Fish Species in the Freshwater Marshes of the Florida Everglades.” 2018. Web. 15 Dec 2019.

Vancouver:

Ontkos AT. Habitat Use of Three Abundant Predatory Fish Species in the Freshwater Marshes of the Florida Everglades. [Internet] [Thesis]. Florida International University; 2018. [cited 2019 Dec 15]. Available from: https://digitalcommons.fiu.edu/etd/3873 ; FIDC007033.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Ontkos AT. Habitat Use of Three Abundant Predatory Fish Species in the Freshwater Marshes of the Florida Everglades. [Thesis]. Florida International University; 2018. Available from: https://digitalcommons.fiu.edu/etd/3873 ; FIDC007033

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Eastern Michigan University

11. Kirk, Jennifer K. Effect of invasive phragmites australis and its control on microbial community composition in a freshwater wetland.

Degree: MS, Biology, 2014, Eastern Michigan University

URL: http://commons.emich.edu/theses/835

► Wetlands support great species diversity and perform important ecosystem services like carbon and nutrient cycling, largely facilitated by microorganisms. Invasive plants, like Phragmites australis,… (more)

Subjects/Keywords: Glyphosate; Great Lakes; Invasive species; microbial communities; Phragmites australis; wetlands; Biology; Life Sciences

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APA (6^th Edition):

Kirk, J. K. (2014). Effect of invasive phragmites australis and its control on microbial community composition in a freshwater wetland. (Masters Thesis). Eastern Michigan University. Retrieved from http://commons.emich.edu/theses/835

Chicago Manual of Style (16^th Edition):

Kirk, Jennifer K. “Effect of invasive phragmites australis and its control on microbial community composition in a freshwater wetland.” 2014. Masters Thesis, Eastern Michigan University. Accessed December 15, 2019. http://commons.emich.edu/theses/835.

MLA Handbook (7^th Edition):

Kirk, Jennifer K. “Effect of invasive phragmites australis and its control on microbial community composition in a freshwater wetland.” 2014. Web. 15 Dec 2019.

Vancouver:

Kirk JK. Effect of invasive phragmites australis and its control on microbial community composition in a freshwater wetland. [Internet] [Masters thesis]. Eastern Michigan University; 2014. [cited 2019 Dec 15]. Available from: http://commons.emich.edu/theses/835.

Council of Science Editors:

Kirk JK. Effect of invasive phragmites australis and its control on microbial community composition in a freshwater wetland. [Masters Thesis]. Eastern Michigan University; 2014. Available from: http://commons.emich.edu/theses/835

Loyola University Chicago

12. Greene, Kimberly Anne. Aquatic Macroinvertebrate Response to Invasion and Subsequent Removal of Typha × glauca From Great Lakes Coastal Marshes.

Degree: MS, Biology, 2013, Loyola University Chicago

URL: http://ecommons.luc.edu/luc_theses/1456

► Aquatic macroinvertebrates are important in wetland ecosystems; many fish and wildlife species depend upon them for food resources and they aid in nutrient cycling.… (more)

Subjects/Keywords: aquatic macroinvertebrates; Great Lakes; invasive species; Typha x glauca; wetlands; Ecology and Evolutionary Biology

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APA (6^th Edition):

Greene, K. A. (2013). Aquatic Macroinvertebrate Response to Invasion and Subsequent Removal of Typha × glauca From Great Lakes Coastal Marshes. (Thesis). Loyola University Chicago. Retrieved from http://ecommons.luc.edu/luc_theses/1456

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Greene, Kimberly Anne. “Aquatic Macroinvertebrate Response to Invasion and Subsequent Removal of Typha × glauca From Great Lakes Coastal Marshes.” 2013. Thesis, Loyola University Chicago. Accessed December 15, 2019. http://ecommons.luc.edu/luc_theses/1456.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Greene, Kimberly Anne. “Aquatic Macroinvertebrate Response to Invasion and Subsequent Removal of Typha × glauca From Great Lakes Coastal Marshes.” 2013. Web. 15 Dec 2019.

Vancouver:

Greene KA. Aquatic Macroinvertebrate Response to Invasion and Subsequent Removal of Typha × glauca From Great Lakes Coastal Marshes. [Internet] [Thesis]. Loyola University Chicago; 2013. [cited 2019 Dec 15]. Available from: http://ecommons.luc.edu/luc_theses/1456.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Greene KA. Aquatic Macroinvertebrate Response to Invasion and Subsequent Removal of Typha × glauca From Great Lakes Coastal Marshes. [Thesis]. Loyola University Chicago; 2013. Available from: http://ecommons.luc.edu/luc_theses/1456

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Virginia Commonwealth University

13. Prasse, Christine. The effects of hydrology and vegetation on microbial community structure and soil function in the sediments of freshwater wetlands.

Degree: MS, Biology, 2010, Virginia Commonwealth University

URL: https://scholarscompass.vcu.edu/etd/115

► In wetland soils, hydrology is considered to be one of the primary factors shaping wetland function and microbial community structure, but plant-soil interactions are also… (more)

▼ In wetland soils, hydrology is considered to be one of the primary factors shaping wetland function and microbial community structure, but plant-soil interactions are also important mechanisms affecting microbial nutrient transformations. The research presented here considered the interactive effect to describe how hydrology and the presence of plants alter the soil profile, the development of the bacterial community, and their associated functions. To achieve this goal, plots were established in three hydrologically-distinct regimes (Wet, Intermediate, and Dry) within a non-tidal freshwater wetland along the James River (Charles City County, Virginia). Inside each main plot, ten subplots were cleared of all aboveground plant material; five plots were left to re-grow (“Vegetated” reference), while the remaining five were weeded each week to maintain bare soil (“Clipped” treatment subplots). Manipulations were started at the beginning of the growing season, and sampling continued until the following winter. Every eight weeks, soil cores (30 cm) were collected and analyzed for a variety of soil properties (e.g., pH, OM, C:N, redox, vegetation and root biomass), microbial community structure (16S-rDNA-based T-RFLP),bacterial abundance (Acridine Orange Direct Count), and soil function (Extracellular Enzyme Activity (EEA)). A mixed-effects repeated measures analysis of variance (ANOVA) was used to better understand how each variable responded within each hydrological regime and treatment. Principal component analysis (PCA) and Partial Mantel tests were used to elucidate how saturation and vegetation influence the microbial community structure and soil enzyme function. Bacterial community properties and soil functions followed differences in soil saturation and associated physicochemical parameters (i.e., pH and redox). Correlations with wetland vegetation were primarily related to seasonal changes in plant community composition and biomass, and differences between experimental treatments were small. Evidence suggests the present plant species and the amount of above- and belowground biomass plays a more selective role shaping bacterial communities and soil function. Due to the short-term of this study and tight soil correlations, it is difficult to determine if observed differences are a product of the plant community or soil saturation, but it is clear that each is important. Based on the literature, plant effects were smaller in this wetland than might be expected. This experiment took place in a recently exposed lake basin, so plant-soil-microbe interaction may not be well established. As the wetland matures, relative importance of vegetation is expected to increase and impact bacterial composition and function. Collectively, these results demonstrate that wetlands are not a product of one separate variable, but result from various factors interlinked to shape microbial communities and soil functions. Advisors/Committee Members: Rima B. Franklin.

Subjects/Keywords: Wetlands; Microbial Ecology; Extracelluar Enzyme Function; Bacterial Community Structure; Biology; Life Sciences

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APA (6^th Edition):

Prasse, C. (2010). The effects of hydrology and vegetation on microbial community structure and soil function in the sediments of freshwater wetlands. (Thesis). Virginia Commonwealth University. Retrieved from https://scholarscompass.vcu.edu/etd/115

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Prasse, Christine. “The effects of hydrology and vegetation on microbial community structure and soil function in the sediments of freshwater wetlands.” 2010. Thesis, Virginia Commonwealth University. Accessed December 15, 2019. https://scholarscompass.vcu.edu/etd/115.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Prasse, Christine. “The effects of hydrology and vegetation on microbial community structure and soil function in the sediments of freshwater wetlands.” 2010. Web. 15 Dec 2019.

Vancouver:

Prasse C. The effects of hydrology and vegetation on microbial community structure and soil function in the sediments of freshwater wetlands. [Internet] [Thesis]. Virginia Commonwealth University; 2010. [cited 2019 Dec 15]. Available from: https://scholarscompass.vcu.edu/etd/115.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Prasse C. The effects of hydrology and vegetation on microbial community structure and soil function in the sediments of freshwater wetlands. [Thesis]. Virginia Commonwealth University; 2010. Available from: https://scholarscompass.vcu.edu/etd/115

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Texas Tech University

14. -5319-4166. The effects of land use and climate change on playa wetlands and their invertebrate communities.

Degree: PhD, Biology, 2018, Texas Tech University

URL: http://hdl.handle.net/2346/74384

► Climate and land-use changes are the primary threats to playa wetlands and their invertebrate communities. Playas are ephemeral, depressional wetlands that are the primary form… (more)

▼ Climate and land-use changes are the primary threats to playa wetlands and their invertebrate communities. Playas are ephemeral, depressional wetlands that are the primary form of surface water in the Southern High Plains of North America, an area that has experienced recent land-use changes that may affect playas. I used remotely sensed imagery to assess changes in land use in five categories (agriculture, rangeland/grassland, fallow, developed, and water) and playa inundation in Texas on six dates during the late growing season over 23 years. A decrease in the number of wet playas was observed over that span, and significant differences among land uses were found between and within years around dry and wet playas. Mean patch size and overall area of rangeland/grassland increased over time, possibly due in part to conservation efforts in the area. Other land-use types consequently decreased, but agriculture remained one of the dominant land-use types throughout. Because playas are crucial habitats, these changes have likely affected regional biodiversity. Playa-associated biodiversity is largely comprised of birds, amphibians, and invertebrates. The Familiar Bluet (Hexapoda: Odonata, Coenagrionidae, Enallagma civile) was selected as a model organism to study the effects of environmental changes on playa invertebrates. Odonates are good model organisms to study ecological and evolutionary concepts because of their amphibious life history, which makes them sensitive to both aquatic and terrestrial environmental changes. Enallagma civile is a habitat generalist with a widespread distribution throughout the New World that has been underutilized in research. I summarized its life history and described lab husbandry techniques in an overview of the species as a potential model organism for studies on environmental subjects like climate change effects on elevated water temperature. Current climate change predictions estimate increased air temperatures across the Southern High Plains, putting many organisms at risk from environmental changes affecting nymph and adult life stages. Increased air temperatures can lead to elevated water temperatures, but experiments are lacking on responses in terms of development or survival. Enallagma civile was used to examine these effects. Eggs were collected and reared under four water temperature regimes (26, 32, 38, and 41°C). Nymph body measurements after molts, development rate, and deaths were recorded daily. Nymphs in the two hotter treatments were smaller and had lower survivorship whereas individuals in the cooler temperatures generally survived to adulthood and were larger. Individuals reared at 32°C emerged the quickest, going from egg to adult in 26 days. Elevated temperatures can thus be both advantageous and detrimental, causing concern for aquatic invertebrates in the future. In conclusion, these studies have demonstrated how land-use and climate changes are threats to playa wetlands and biota. With rangeland/grassland increasing over time, the frequency of playa… Advisors/Committee Members: Densmore, Llewellyn D. (committee member), Griffis-Kyle, Kerry L. (committee member), Lockwood, Stephanie A. (committee member), Mulligan, Kevin R. (committee member), McIntyre, Nancy E. (Committee Chair).

Subjects/Keywords: Playa Wetlands; Climate Change; Land Use Change; Invertebrate Communities; Enallagma civile; Water Temperature

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APA (6^th Edition):

-5319-4166. (2018). The effects of land use and climate change on playa wetlands and their invertebrate communities. (Doctoral Dissertation). Texas Tech University. Retrieved from http://hdl.handle.net/2346/74384

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Chicago Manual of Style (16^th Edition):

-5319-4166. “The effects of land use and climate change on playa wetlands and their invertebrate communities.” 2018. Doctoral Dissertation, Texas Tech University. Accessed December 15, 2019. http://hdl.handle.net/2346/74384.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

MLA Handbook (7^th Edition):

-5319-4166. “The effects of land use and climate change on playa wetlands and their invertebrate communities.” 2018. Web. 15 Dec 2019.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Vancouver:

-5319-4166. The effects of land use and climate change on playa wetlands and their invertebrate communities. [Internet] [Doctoral dissertation]. Texas Tech University; 2018. [cited 2019 Dec 15]. Available from: http://hdl.handle.net/2346/74384.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Council of Science Editors:

-5319-4166. The effects of land use and climate change on playa wetlands and their invertebrate communities. [Doctoral Dissertation]. Texas Tech University; 2018. Available from: http://hdl.handle.net/2346/74384

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Arizona State University

15. Suchy, Amanda Klara. Denitrification in Accidental Urban Wetlands: Exploring the Roles of Water Flows and Plant Patches.

Degree: Biology, 2016, Arizona State University

URL: http://repository.asu.edu/items/40731

Subjects/Keywords: Ecology; Biogeochemistry; denitrification; nitrogen; urban; wetlands

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APA (6^th Edition):

Suchy, A. K. (2016). Denitrification in Accidental Urban Wetlands: Exploring the Roles of Water Flows and Plant Patches. (Doctoral Dissertation). Arizona State University. Retrieved from http://repository.asu.edu/items/40731

Chicago Manual of Style (16^th Edition):

Suchy, Amanda Klara. “Denitrification in Accidental Urban Wetlands: Exploring the Roles of Water Flows and Plant Patches.” 2016. Doctoral Dissertation, Arizona State University. Accessed December 15, 2019. http://repository.asu.edu/items/40731.

MLA Handbook (7^th Edition):

Suchy, Amanda Klara. “Denitrification in Accidental Urban Wetlands: Exploring the Roles of Water Flows and Plant Patches.” 2016. Web. 15 Dec 2019.

Vancouver:

Suchy AK. Denitrification in Accidental Urban Wetlands: Exploring the Roles of Water Flows and Plant Patches. [Internet] [Doctoral dissertation]. Arizona State University; 2016. [cited 2019 Dec 15]. Available from: http://repository.asu.edu/items/40731.

Council of Science Editors:

Suchy AK. Denitrification in Accidental Urban Wetlands: Exploring the Roles of Water Flows and Plant Patches. [Doctoral Dissertation]. Arizona State University; 2016. Available from: http://repository.asu.edu/items/40731

Florida International University

16. Bornhoeft, Sarah C. Influence of Experimental Sheet Flow on Aquatic Foods Webs of the Central Everglades.

Degree: MS, Biology, 2016, Florida International University

URL: http://digitalcommons.fiu.edu/etd/2562 ; 10.25148/etd.FIDC000760 ; FIDC000760

► Establishing historical water velocities is a goal of Everglades restoration because of their role maintaining landscape topographic relief. However, flows may also change the… (more)

Subjects/Keywords: Wetlands; Food Webs; Algae; Fatty Acids; Sailfin Molly; Eastern Mosquitofish; Riverine Grass Shrimp; Everglades; stoichiometry; phosphorus; Biology

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APA (6^th Edition):

Bornhoeft, S. C. (2016). Influence of Experimental Sheet Flow on Aquatic Foods Webs of the Central Everglades. (Thesis). Florida International University. Retrieved from http://digitalcommons.fiu.edu/etd/2562 ; 10.25148/etd.FIDC000760 ; FIDC000760

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Bornhoeft, Sarah C. “Influence of Experimental Sheet Flow on Aquatic Foods Webs of the Central Everglades.” 2016. Thesis, Florida International University. Accessed December 15, 2019. http://digitalcommons.fiu.edu/etd/2562 ; 10.25148/etd.FIDC000760 ; FIDC000760.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Bornhoeft, Sarah C. “Influence of Experimental Sheet Flow on Aquatic Foods Webs of the Central Everglades.” 2016. Web. 15 Dec 2019.

Vancouver:

Bornhoeft SC. Influence of Experimental Sheet Flow on Aquatic Foods Webs of the Central Everglades. [Internet] [Thesis]. Florida International University; 2016. [cited 2019 Dec 15]. Available from: http://digitalcommons.fiu.edu/etd/2562 ; 10.25148/etd.FIDC000760 ; FIDC000760.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Bornhoeft SC. Influence of Experimental Sheet Flow on Aquatic Foods Webs of the Central Everglades. [Thesis]. Florida International University; 2016. Available from: http://digitalcommons.fiu.edu/etd/2562 ; 10.25148/etd.FIDC000760 ; FIDC000760

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

17. Lee, Sylvia S. Mechanisms of Diatom Assembly in a Hydrologically-Managed Subtropical Wetland.

Degree: PhD, Biology, 2014, Florida International University

URL: http://digitalcommons.fiu.edu/etd/1207 ; 10.25148/etd.FI14040846 ; FI14040846

► Diatoms are useful indicators of ecological conditions but the mechanisms driving assemblage distribution are not clearly defined. Understanding the mechanisms underlying assemblage distribution is… (more)

▼ Diatoms are useful indicators of ecological conditions but the mechanisms driving assemblage distribution are not clearly defined. Understanding the mechanisms underlying assemblage distribution is necessary to make accurate predictions about the effects of environmental change, such as hydrologic management, restoration, and climate change. The examination of diatom distribution and key drivers across a large wetland over several years can provide a resolved spatio-temporal framework for determining the relative importance of environmental and spatial factors influencing assemblage patterns. I examined a 6-year record of diatom distribution across the Everglades, a large hydrologically-managed subtropical wetland. Successful restoration of this ecosystem depends on using reliable ecological targets and bioassessment strategies based on a comprehensive understanding of the biotic responses to the variables being manipulated, especially hydrology. The components of my research are: 1) characterizing the relationship between diatom distribution and environmental factors; 2) investigating the taxonomy of species presumably with little or no limitation to dispersal by spatial factors; and 3) examining the relative importance of environmental and spatial factors on diatom distribution patterns within a hydrologically-managed environment. Building upon the well-documented utility of Everglades diatom transfer functions for phosphorus based on species optima and tolerance ranges, I developed transfer functions for hydroperiod and biovolume of periphyton (consortium of algae, bacteria, and fungi) and evaluated the utility of resultant diatom-based inference models for bioassessment. Considering the importance of environmental factors, diatoms in the Everglades and Caribbean wetlands may have restricted distributions. My taxonomic investigation of two species with presumed continental distributions and the consequent description of two new species suggest spatial factors can restrict diatom dispersal. The importance of both environmental and spatial controls on Everglades diatom distribution may be related to the availability of calcareous (high mineral content) periphyton that diatoms inhabit because periphyton mineral content is correlated with environmental factors, which differ among compartments within the ecosystem because of hydrologic management. I found environmental factors were more important controls on the distribution of persistent inhabitants of calcareous periphyton, suggesting spatial factors are relatively less important when species are well-suited to the habitats made available by environmental conditions influenced by hydrologic management. Advisors/Committee Members: Evelyn Gaiser, Mark Edlund, Jennifer Richards, Michael Ross, Joel Trexler.

Subjects/Keywords: Biology; Ecology; Everglades; Wetlands; Diatoms; Biology

…There are few studies of what mechanisms structure diatom assemblages in wetlands, which pose… …wetland environmental conditions is extremely important because although wetlands provide… …and animals, wetlands are one of the fastest disappearing ecosystems in the world (… …improve our predictions about environmental change in wetlands and guide our efforts to restore… …evolutionary 5 controls. In the Everglades and other wetlands with shallow and slow-moving water…

10 more images…

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APA (6^th Edition):

Lee, S. S. (2014). Mechanisms of Diatom Assembly in a Hydrologically-Managed Subtropical Wetland. (Doctoral Dissertation). Florida International University. Retrieved from http://digitalcommons.fiu.edu/etd/1207 ; 10.25148/etd.FI14040846 ; FI14040846

Chicago Manual of Style (16^th Edition):

Lee, Sylvia S. “Mechanisms of Diatom Assembly in a Hydrologically-Managed Subtropical Wetland.” 2014. Doctoral Dissertation, Florida International University. Accessed December 15, 2019. http://digitalcommons.fiu.edu/etd/1207 ; 10.25148/etd.FI14040846 ; FI14040846.

MLA Handbook (7^th Edition):

Lee, Sylvia S. “Mechanisms of Diatom Assembly in a Hydrologically-Managed Subtropical Wetland.” 2014. Web. 15 Dec 2019.

Vancouver:

Lee SS. Mechanisms of Diatom Assembly in a Hydrologically-Managed Subtropical Wetland. [Internet] [Doctoral dissertation]. Florida International University; 2014. [cited 2019 Dec 15]. Available from: http://digitalcommons.fiu.edu/etd/1207 ; 10.25148/etd.FI14040846 ; FI14040846.

Council of Science Editors:

Lee SS. Mechanisms of Diatom Assembly in a Hydrologically-Managed Subtropical Wetland. [Doctoral Dissertation]. Florida International University; 2014. Available from: http://digitalcommons.fiu.edu/etd/1207 ; 10.25148/etd.FI14040846 ; FI14040846

Virginia Tech

18. Neatrour, Matthew Aaron. Factors affecting root system response to nutrient heterogeneity in forested wetland ecosystems.

Degree: PhD, Biology, 2005, Virginia Tech

URL: http://hdl.handle.net/10919/27457

► Soil nutrients are often heterogeneously distributed in space and time at scales relevant to individual plants, and plants can respond by selectively proliferating their roots… (more)

▼ Soil nutrients are often heterogeneously distributed in space and time at scales relevant to individual plants, and plants can respond by selectively proliferating their roots within nutrient-rich patches. However, many environmental factors may increase or decrease the degree of root proliferation by plants. I explored how soil fertility, nitrogen (N) or phosphorus (P) limitation, and soil oxygen availability affected root system response to nutrient heterogeneity in forested wetland ecosystems of southeastern United States. Fine root biomass was not correlated with soil nutrient availability within wetland ecosystems, but was related to ecosystem-scale fertility. Root systems generally did not respond to P-rich patches in both floodplain (nutrient-rich) and depressional swamps (nutrient-poor) swamps, but results were inconclusive because the growth medium (sand) potentially hindered root growth. In floodplain forests, roots proliferated into N-rich patches but not P-rich patches, even though litterfall N:P ratios were > 15, which suggested that these ecosystems were P-limited. The combination of nutrient and oxygen heterogeneity affected root proliferation and biomass growth of three common floodplain forest species (Liquidambar styraciflua, Fraxinus pennsylvanica, and Nyssa aquatica) in a potted study, which was related to speciesâ flood tolerance. My results suggest that the environmental context of plants can affect roots system response to nutrient heterogeneity in forested wetland ecosystems and highlights the need for field studies that investigate this phenomenon. Learning how environmental conditions affect plant response to nutrient heterogeneity at a fine-scale will provide better predictions of nutrient cycling, plant competition and succession, and forest productivity, which are important factors that determine carbon sequestration and timber production. Advisors/Committee Members: Webster, Jackson R. (committee member), Burger, James A. (committee member), Nilsen, Erik T. (committee member), Jones, Robert H. (committeecochair), Golladay, Stephen W. (committeecochair).

Subjects/Keywords: root proliferation; root foraging; nutrient heterogeneity; forested wetlands

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APA (6^th Edition):

Neatrour, M. A. (2005). Factors affecting root system response to nutrient heterogeneity in forested wetland ecosystems. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/27457

Chicago Manual of Style (16^th Edition):

Neatrour, Matthew Aaron. “Factors affecting root system response to nutrient heterogeneity in forested wetland ecosystems.” 2005. Doctoral Dissertation, Virginia Tech. Accessed December 15, 2019. http://hdl.handle.net/10919/27457.

MLA Handbook (7^th Edition):

Neatrour, Matthew Aaron. “Factors affecting root system response to nutrient heterogeneity in forested wetland ecosystems.” 2005. Web. 15 Dec 2019.

Vancouver:

Neatrour MA. Factors affecting root system response to nutrient heterogeneity in forested wetland ecosystems. [Internet] [Doctoral dissertation]. Virginia Tech; 2005. [cited 2019 Dec 15]. Available from: http://hdl.handle.net/10919/27457.

Council of Science Editors:

Neatrour MA. Factors affecting root system response to nutrient heterogeneity in forested wetland ecosystems. [Doctoral Dissertation]. Virginia Tech; 2005. Available from: http://hdl.handle.net/10919/27457

Virginia Tech

19. Wilhite, Rhonda E. The effects of atrazine on nitrogen cycling in a freshwater wetland microcosm.

Degree: MS, Biology, 1996, Virginia Tech

URL: http://hdl.handle.net/10919/44343

Subjects/Keywords: atrazine; bacteria; nitrogen; wetlands; LD5655.V855 1996.W554

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APA (6^th Edition):

Wilhite, R. E. (1996). The effects of atrazine on nitrogen cycling in a freshwater wetland microcosm. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/44343

Chicago Manual of Style (16^th Edition):

Wilhite, Rhonda E. “The effects of atrazine on nitrogen cycling in a freshwater wetland microcosm.” 1996. Masters Thesis, Virginia Tech. Accessed December 15, 2019. http://hdl.handle.net/10919/44343.

MLA Handbook (7^th Edition):

Wilhite, Rhonda E. “The effects of atrazine on nitrogen cycling in a freshwater wetland microcosm.” 1996. Web. 15 Dec 2019.

Vancouver:

Wilhite RE. The effects of atrazine on nitrogen cycling in a freshwater wetland microcosm. [Internet] [Masters thesis]. Virginia Tech; 1996. [cited 2019 Dec 15]. Available from: http://hdl.handle.net/10919/44343.

Council of Science Editors:

Wilhite RE. The effects of atrazine on nitrogen cycling in a freshwater wetland microcosm. [Masters Thesis]. Virginia Tech; 1996. Available from: http://hdl.handle.net/10919/44343

Virginia Commonwealth University

20. Gillespie, Jaimie. The effects of saltwater intrusion on methanogen community abundance, structure, and activity.

Degree: MS, Biology, 2013, Virginia Commonwealth University

URL: https://scholarscompass.vcu.edu/etd/3175

► Tidal freshwater wetlands (TFW) are at significant risk of loss or alteration due to global climate change, and saltwater intrusion from sea level rise is… (more)

Subjects/Keywords: sea level rise; mcrA; qPCR; T-RFLP; methanogens; tidal freshwater wetlands; James River; Waccamaw River; Hudson River; Biology; Life Sciences

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APA (6^th Edition):

Gillespie, J. (2013). The effects of saltwater intrusion on methanogen community abundance, structure, and activity. (Thesis). Virginia Commonwealth University. Retrieved from https://scholarscompass.vcu.edu/etd/3175

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Gillespie, Jaimie. “The effects of saltwater intrusion on methanogen community abundance, structure, and activity.” 2013. Thesis, Virginia Commonwealth University. Accessed December 15, 2019. https://scholarscompass.vcu.edu/etd/3175.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Gillespie, Jaimie. “The effects of saltwater intrusion on methanogen community abundance, structure, and activity.” 2013. Web. 15 Dec 2019.

Vancouver:

Gillespie J. The effects of saltwater intrusion on methanogen community abundance, structure, and activity. [Internet] [Thesis]. Virginia Commonwealth University; 2013. [cited 2019 Dec 15]. Available from: https://scholarscompass.vcu.edu/etd/3175.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Gillespie J. The effects of saltwater intrusion on methanogen community abundance, structure, and activity. [Thesis]. Virginia Commonwealth University; 2013. Available from: https://scholarscompass.vcu.edu/etd/3175

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Florida International University

21. Charles, Sean Patrick. Saltwater Intrusion and Vegetation Shifts Drive Changes in Carbon Storage in Coastal Wetlands.

Degree: PhD, Biology, 2018, Florida International University

URL: https://digitalcommons.fiu.edu/etd/3791 ; 10.25148/etd.FIDC006842 ; FIDC006842

► Coastal wetlands protect coastlines through efficient storage of organic carbon (OC) that decreases wetland vulnerability to sea level rise (SLR). Accelerated SLR is driving… (more)

▼ Coastal wetlands protect coastlines through efficient storage of organic carbon (OC) that decreases wetland vulnerability to sea level rise (SLR). Accelerated SLR is driving saltwater intrusion and altering vegetation communities and biogeochemical conditions in coastal wetlands with uncertain implications. We quantified changes in OC stocks and fluxes driven by 1) saltwater and phosphorous intrusion on freshwater and brackish marshes, 2) vegetation along an experimental saltmarsh to mangrove gradient, 3) saltwater intrusion and vegetation change across a marsh to mangrove ecotone, and 4) vegetation change and mangrove forest development along a marsh to mangrove ecotone. Increasing salinity in freshwater marshes decreased root biomass and soil elevation within one year. In brackish marshes, increased salinity decreased root productivity and biomass and increased root breakdown rate (k), while added salinity did not increase elevation loss. In our experimental marsh-mangrove ecotone, mangrove vegetation promoted higher organic carbon (OC) storage by increasing above and belowground biomass and reducing organic matter k. However, mangroves also increased belowground k, and decreased allochthonous marine subsidies, indicating the potential for OC storage trade-offs. In the Southeast Everglades, we identified strong interior-coastal gradients in soil stoichiometry and mangrove cover. Interior freshwater soil conditions increased k, while total soil OC stocks decreased toward the coast indicating that saltwater intrusion is driving large scale soil OC loss. In the southeast Everglades, mangrove expansion increased root biomass and root productivity, but did not mitigate the overall loss of OC stocks toward the coast. Similarly, in the southwest Everglades, saltwater intrusion drove a decrease in soil OC. However, mangrove encroachment drove a rapid recovery and increased OC stocks. Mangrove encroachment doubled aboveground biomass within the last ten years, increased it 30 times in the last 30 years, and doubled belowground biomass after 20 years. Our research shows that 1) moderate saltwater intrusion without mangrove encroachment will lead to a loss in OC stocks and potentially lead to wetland elevation loss and submergence, 2) in the absence of a change in saltwater intrusion, mangrove expansion can enhance OC storage 3) mangrove expansion can mitigate OC loss during saltwater intrusion, but this pattern depends on mangrove recruitment and ecosystem productivity. Advisors/Committee Members: John Kominoski, Steven Pennings, Steven Oberbauer, Michael Ross, Tiffany Troxler.

Subjects/Keywords: coastal wetlands; sea-level rise; saltwater intrusion; carbon storage; ecosystem vulnerability; Florida Everglades; Texas coast; resilience; Biology

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APA (6^th Edition):

Charles, S. P. (2018). Saltwater Intrusion and Vegetation Shifts Drive Changes in Carbon Storage in Coastal Wetlands. (Doctoral Dissertation). Florida International University. Retrieved from https://digitalcommons.fiu.edu/etd/3791 ; 10.25148/etd.FIDC006842 ; FIDC006842

Chicago Manual of Style (16^th Edition):

Charles, Sean Patrick. “Saltwater Intrusion and Vegetation Shifts Drive Changes in Carbon Storage in Coastal Wetlands.” 2018. Doctoral Dissertation, Florida International University. Accessed December 15, 2019. https://digitalcommons.fiu.edu/etd/3791 ; 10.25148/etd.FIDC006842 ; FIDC006842.

MLA Handbook (7^th Edition):

Charles, Sean Patrick. “Saltwater Intrusion and Vegetation Shifts Drive Changes in Carbon Storage in Coastal Wetlands.” 2018. Web. 15 Dec 2019.

Vancouver:

Charles SP. Saltwater Intrusion and Vegetation Shifts Drive Changes in Carbon Storage in Coastal Wetlands. [Internet] [Doctoral dissertation]. Florida International University; 2018. [cited 2019 Dec 15]. Available from: https://digitalcommons.fiu.edu/etd/3791 ; 10.25148/etd.FIDC006842 ; FIDC006842.

Council of Science Editors:

Charles SP. Saltwater Intrusion and Vegetation Shifts Drive Changes in Carbon Storage in Coastal Wetlands. [Doctoral Dissertation]. Florida International University; 2018. Available from: https://digitalcommons.fiu.edu/etd/3791 ; 10.25148/etd.FIDC006842 ; FIDC006842

Virginia Tech

22. Atkinson, Robert B. An analysis of palustrine forested wetland compensation effectiveness in Virginia.

Degree: PhD, Biology, 1991, Virginia Tech

URL: http://hdl.handle.net/10919/39970

► Plans to construct a wetland to replace wetland losses has become a common feature of permit requests. The purpose of this project is to suggest… (more)

Subjects/Keywords: Wetland conservation Virginia.; Wetlands Virginia.; LD5655.V856 1991.A844

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APA (6^th Edition):

Atkinson, R. B. (1991). An analysis of palustrine forested wetland compensation effectiveness in Virginia. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/39970

Chicago Manual of Style (16^th Edition):

Atkinson, Robert B. “An analysis of palustrine forested wetland compensation effectiveness in Virginia.” 1991. Doctoral Dissertation, Virginia Tech. Accessed December 15, 2019. http://hdl.handle.net/10919/39970.

MLA Handbook (7^th Edition):

Atkinson, Robert B. “An analysis of palustrine forested wetland compensation effectiveness in Virginia.” 1991. Web. 15 Dec 2019.

Vancouver:

Atkinson RB. An analysis of palustrine forested wetland compensation effectiveness in Virginia. [Internet] [Doctoral dissertation]. Virginia Tech; 1991. [cited 2019 Dec 15]. Available from: http://hdl.handle.net/10919/39970.

Council of Science Editors:

Atkinson RB. An analysis of palustrine forested wetland compensation effectiveness in Virginia. [Doctoral Dissertation]. Virginia Tech; 1991. Available from: http://hdl.handle.net/10919/39970

University of Akron

23. Manning, Nathan Farrell. LONG TERM HYDROLOGY PATTERNS AND PLANT COMMUNITY COMPOSITION OF DISTURBED AND UNDISTURBED WETLANDS IN THE CUYAHOGA VALLEY NATIONAL PARK, OHIO, USA.

Degree: MS, Biology, 2006, University of Akron

URL: http://rave.ohiolink.edu/etdc/view?acc_num=akron1153750077

► The hydrology of wetlands is a key abiotic factor in the determination of the type of wetland and the maintenance of these important ecosystems. By… (more)

Subjects/Keywords: Biology, Ecology; Wetlands; Cuyahoga Valley National Park; Hydrology; Plant Communities; Disturbance

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APA (6^th Edition):

Manning, N. F. (2006). LONG TERM HYDROLOGY PATTERNS AND PLANT COMMUNITY COMPOSITION OF DISTURBED AND UNDISTURBED WETLANDS IN THE CUYAHOGA VALLEY NATIONAL PARK, OHIO, USA. (Masters Thesis). University of Akron. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=akron1153750077

Chicago Manual of Style (16^th Edition):

Manning, Nathan Farrell. “LONG TERM HYDROLOGY PATTERNS AND PLANT COMMUNITY COMPOSITION OF DISTURBED AND UNDISTURBED WETLANDS IN THE CUYAHOGA VALLEY NATIONAL PARK, OHIO, USA.” 2006. Masters Thesis, University of Akron. Accessed December 15, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=akron1153750077.

MLA Handbook (7^th Edition):

Manning, Nathan Farrell. “LONG TERM HYDROLOGY PATTERNS AND PLANT COMMUNITY COMPOSITION OF DISTURBED AND UNDISTURBED WETLANDS IN THE CUYAHOGA VALLEY NATIONAL PARK, OHIO, USA.” 2006. Web. 15 Dec 2019.

Vancouver:

Manning NF. LONG TERM HYDROLOGY PATTERNS AND PLANT COMMUNITY COMPOSITION OF DISTURBED AND UNDISTURBED WETLANDS IN THE CUYAHOGA VALLEY NATIONAL PARK, OHIO, USA. [Internet] [Masters thesis]. University of Akron; 2006. [cited 2019 Dec 15]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=akron1153750077.

Council of Science Editors:

Manning NF. LONG TERM HYDROLOGY PATTERNS AND PLANT COMMUNITY COMPOSITION OF DISTURBED AND UNDISTURBED WETLANDS IN THE CUYAHOGA VALLEY NATIONAL PARK, OHIO, USA. [Masters Thesis]. University of Akron; 2006. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=akron1153750077

24. Jenkins, Miriam M. Density Effects on Competition for Pollination between Two Wetland Plants.

Degree: MS, Biology, 2014, University of Akron

URL: http://rave.ohiolink.edu/etdc/view?acc_num=akron1405376639

► Sympatric plants that flower in synchrony often share pollinators and may therefore compete for pollination services, a crucial element of their reproductive success. Competition’s influence… (more)

▼ Sympatric plants that flower in synchrony often share pollinators and may therefore compete for pollination services, a crucial element of their reproductive success. Competition’s influence on reproduction is likely to vary with density, yet this relationship is not well understood especially in the context of natural habitats. Mimulus ringens and Verbena hastata are sympatric, co-flowering wetland plants visited by many of the same pollinating insects, including bumblebees, solitary bees, and butterflies. Thus, they have the potential to compete for the resource of pollination much like they might compete for light and nutrients. I combined an experimental and natural experiment study to investigate whether the density of V. hastata influences the pollination services to M. ringens in its natural habitat. I explored how different V. hastata densities impacted M. ringens stigmatic pollen receipt and seed set, two important factors of pollination and reproductive success. I found no significant effect of V. hastata’s density on M. ringens stigmatic pollen load or seed set in the experimental study, and no significant relationship between these variables in the natural experiment study. Therefore, V. hastata density may not be a determinant of the quantity and quality of pollinator visits to M. ringens. This neutral effect may be due to a number of reasons: 1. The two species share visitors but not pollinators, 2. The pollinators to both species exhibit different foraging behavior/posture, 3. Resource availability is a more important factor influencing M. ringens reproductive success, or 4. M. ringens is pollen-limited at my field sites. Indeed, M. ringens pollen receipt and seed set varied significantly between the 6 wetlands in this study, suggesting that environmental factors may be influential to its pollination. In addition, M. ringens stigmas showed slightly lower pollen load deposition (4951 pollen grains±431 [mean±1SE]) than the mean number of ovules (6000) it produces, suggesting that the populations in this study may indeed be pollen-limited. Advisors/Committee Members: Mitchell, Randall (Advisor).

Subjects/Keywords: Biology; Ecology; pollination wetlands competition Mimulus ringens Verbena hastata

…native perennial forb with a mixed mating system that occurs in wetlands throughout central and… …in wetlands throughout North America (Lovell and Lovell 1939, Cruden et al. 1990)… …fig 3.2). All wetlands were emergent with limited presence of woody plants, but varied…

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APA (6^th Edition):

Jenkins, M. M. (2014). Density Effects on Competition for Pollination between Two Wetland Plants. (Masters Thesis). University of Akron. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=akron1405376639

Chicago Manual of Style (16^th Edition):

Jenkins, Miriam M. “Density Effects on Competition for Pollination between Two Wetland Plants.” 2014. Masters Thesis, University of Akron. Accessed December 15, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=akron1405376639.

MLA Handbook (7^th Edition):

Jenkins, Miriam M. “Density Effects on Competition for Pollination between Two Wetland Plants.” 2014. Web. 15 Dec 2019.

Vancouver:

Jenkins MM. Density Effects on Competition for Pollination between Two Wetland Plants. [Internet] [Masters thesis]. University of Akron; 2014. [cited 2019 Dec 15]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=akron1405376639.

Council of Science Editors:

Jenkins MM. Density Effects on Competition for Pollination between Two Wetland Plants. [Masters Thesis]. University of Akron; 2014. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=akron1405376639

Florida International University

25. Ruehl, Clifton B. The Interactive Effects of Predators, Resources, and Disturbance on Freshwater Snail Populations from the Everglades.

Degree: Biology, 2010, Florida International University

URL: http://digitalcommons.fiu.edu/etd/266 ; 10.25148/etd.FI10080412 ; FI10080412

► The origins of population dynamics depend on interplay between abiotic and biotic factors; the relative importance of each changing across space and time. Predation… (more)

▼ The origins of population dynamics depend on interplay between abiotic and biotic factors; the relative importance of each changing across space and time. Predation is a central feature of ecological communities that removes individuals (consumption) and alters prey traits (non-consumptive). Resource quality mitigates non-consumptive predator effects by stimulating growth and reproduction. Disturbance resets predator-prey interactions by removing both. I integrate experiments, time-series analysis, and performance trials to examine the relative importance of these on the population dynamics of a snail species by studying a variety of their traits. A review of ninety-three published articles revealed that snail abundance was much less in the Everglades and similar ecosystems compared to all other freshwater ecosystems considered. Separating consumptive from non-consumptive (cues) predator effects at different phosphorous levels with an experiment determined that phosphorous stimulated, but predator cues inhibited snail growth (34% vs. 23%), activity (38% vs. 53%), and reproductive effort (99% vs. 90%) compared to controls. Cues induced taller shells and smaller openings and moved to refugia where they reduced periphyton by 8%. Consumptive predator effects were minor in comparison. In a reciprocal transplant cage experiment along a predator cue and phosphorous gradient created by a canal, snails grew 10% faster and produced 37% more eggs far from the canal (fewer cues) when fed phosphorous-enriched periphyton from near the canal. Time-series analysis at four sites and predator performance trials reveal that phosphorous-enriched regions support larger snail populations, seasonal drying removes snails at all sites, crayfish negatively affect populations in enriched regions, and molluscivorous fish consume snails in the wet season. Combining these studies reveals interplay between resources, predators, and seasonality that limit snail populations in the Everglades and lead to their low abundance compared to other freshwater ecosystems. Resource quality is emerging as the critical factor because improving resources profoundly improved growth and reproduction; seasonal drying and predation become important at times and places. This work contributes to the general understanding in ecology of the relative importance of different factors that structure populations and provides evidence that bolsters monitoring efforts to assess the Comprehensive Everglades Restoration Plan that show phosphorous enrichment is a major driver of ecosystem change. Advisors/Committee Members: Joel C. Trexler, Zhenmin Chen, Timothy M. Collins, Evelyn E. Gaiser, Mary E. Power.

Subjects/Keywords: Everglades; grazers; Pulmonate snails; phenotypic plasticity; geometric morphometrics; karst wetlands; life history; predator; prey; Biology; Other Ecology and Evolutionary Biology; Population Biology; Terrestrial and Aquatic Ecology

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APA (6^th Edition):

Ruehl, C. B. (2010). The Interactive Effects of Predators, Resources, and Disturbance on Freshwater Snail Populations from the Everglades. (Thesis). Florida International University. Retrieved from http://digitalcommons.fiu.edu/etd/266 ; 10.25148/etd.FI10080412 ; FI10080412

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Ruehl, Clifton B. “The Interactive Effects of Predators, Resources, and Disturbance on Freshwater Snail Populations from the Everglades.” 2010. Thesis, Florida International University. Accessed December 15, 2019. http://digitalcommons.fiu.edu/etd/266 ; 10.25148/etd.FI10080412 ; FI10080412.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Ruehl, Clifton B. “The Interactive Effects of Predators, Resources, and Disturbance on Freshwater Snail Populations from the Everglades.” 2010. Web. 15 Dec 2019.

Vancouver:

Ruehl CB. The Interactive Effects of Predators, Resources, and Disturbance on Freshwater Snail Populations from the Everglades. [Internet] [Thesis]. Florida International University; 2010. [cited 2019 Dec 15]. Available from: http://digitalcommons.fiu.edu/etd/266 ; 10.25148/etd.FI10080412 ; FI10080412.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Ruehl CB. The Interactive Effects of Predators, Resources, and Disturbance on Freshwater Snail Populations from the Everglades. [Thesis]. Florida International University; 2010. Available from: http://digitalcommons.fiu.edu/etd/266 ; 10.25148/etd.FI10080412 ; FI10080412

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Seton Hall University

26. De Coursin Jacobs, Lene Marie. Chironomid Hemoglobin Genetic Diversity as an Indicator of the New Jersey Hackensack Meadowlands Wetland Health.

Degree: MS Biology, Biology, 2006, Seton Hall University

URL: http://scholarship.shu.edu/dissertations/764

. Advisors/Committee Members: Carolyn Bentivegna.

Subjects/Keywords: Chironomid hemoglobin; Genetic diversity; New Jersey; Hackensack Meadowlands; Wetlands; Biology; Environmental Indicators and Impact Assessment; Genetics

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APA (6^th Edition):

De Coursin Jacobs, L. M. (2006). Chironomid Hemoglobin Genetic Diversity as an Indicator of the New Jersey Hackensack Meadowlands Wetland Health. (Doctoral Dissertation). Seton Hall University. Retrieved from http://scholarship.shu.edu/dissertations/764

Chicago Manual of Style (16^th Edition):

De Coursin Jacobs, Lene Marie. “Chironomid Hemoglobin Genetic Diversity as an Indicator of the New Jersey Hackensack Meadowlands Wetland Health.” 2006. Doctoral Dissertation, Seton Hall University. Accessed December 15, 2019. http://scholarship.shu.edu/dissertations/764.

MLA Handbook (7^th Edition):

De Coursin Jacobs, Lene Marie. “Chironomid Hemoglobin Genetic Diversity as an Indicator of the New Jersey Hackensack Meadowlands Wetland Health.” 2006. Web. 15 Dec 2019.

Vancouver:

De Coursin Jacobs LM. Chironomid Hemoglobin Genetic Diversity as an Indicator of the New Jersey Hackensack Meadowlands Wetland Health. [Internet] [Doctoral dissertation]. Seton Hall University; 2006. [cited 2019 Dec 15]. Available from: http://scholarship.shu.edu/dissertations/764.

Council of Science Editors:

De Coursin Jacobs LM. Chironomid Hemoglobin Genetic Diversity as an Indicator of the New Jersey Hackensack Meadowlands Wetland Health. [Doctoral Dissertation]. Seton Hall University; 2006. Available from: http://scholarship.shu.edu/dissertations/764

27. Dang, Chansotheary. Response of Soil Microbial Communities to Saltwater Intrusion in Tidal Freshwater Wetlands.

Degree: MS, Biology, 2016, Virginia Commonwealth University

URL: https://scholarscompass.vcu.edu/etd/4466

► Saltwater intrusion due to global change is expected to have a detrimental effect on the biogeochemistry of tidal freshwater wetlands. Of particular concern is… (more)

▼ Saltwater intrusion due to global change is expected to have a detrimental effect on the biogeochemistry of tidal freshwater wetlands. Of particular concern is that fact that salinization can alter the role of these ecosystems in the global carbon cycling by causing shifts in microbial metabolism that alter greenhouse gas emissions and increase carbon mineralization rates. However, our understanding of how wetland microbial community dynamics will respond to saltwater intrusion is limited. To address this knowledge gap and increase our understanding of how microbial communities in tidal freshwater wetlands change over time (1, 3, 12, and 49 weeks) under elevated salinity conditions, an in situ soil transplant was conducted. Throughout the 49 weeks of saltwater exposure, salinity had no effect on soil quality (organic matter content and C:N ratio). In contrast, the concentration of porewater ion species (SO₄^-2, NO₃^-, and NH₄⁺) considerably increased. The activity of hydrolytic enzymes, (ß-1,4-glucosidase and 1,4-ß-cellobiohydrolase) gradually decreased with prolonged exposure to saline conditions; by the final sampling event (49 weeks), activity was reduced by ~70% in comparison to the freshwater controls. Short term exposure to salinity (3 and 12 weeks) had a greater effect on phenol oxidase, decreasing activity by 10-20%. Saltwater exposure had an immediate (1 week) effect on potential rates of carbon mineralization; overall, carbon dioxide production doubled and methane production decreased by ~20-fold. These changes in gas production were correlated to increased salinity and to changes in the abundance of methanogens and sulfate reducing bacteria, suggesting a shift in the terminal step in organic matter degradation from methanogenesis to sulfate reduction. Principal component analysis revealed distinct changes in soil environmental conditions and carbon metabolism within weeks, but the response of the microbial community was slower (months to a year). Taken together, results from this study indicate that the response of tidal freshwater wetlands to salinization is driven by complex interactions of microbial related processes and environmental changes that are dependent on the duration of exposure. Assessing the impact of environmental perturbation on ecosystem function may be better achieved by complementary analysis of both microbial community structure and function. Advisors/Committee Members: Rima Franklin, Ph.D.

Subjects/Keywords: Saltwater Intrusion; Wetlands; Microbial Communities; Carbon Mineralization; Biology; Environmental Microbiology and Microbial Ecology

…FRESHWATER WETLANDS By Chansotheary Dang, Master of Science A thesis submitted in partial… …to have a detrimental effect on the biogeochemistry of tidal freshwater wetlands. Of… …wetlands change over time (1, 3, 12, and 49 weeks) under elevated salinity conditions… …from this study indicate that the response of tidal freshwater wetlands to salinization is… …community structure and function. 3 INTRODUCTION Tidal freshwater wetlands (TFW) are…

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APA (6^th Edition):

Dang, C. (2016). Response of Soil Microbial Communities to Saltwater Intrusion in Tidal Freshwater Wetlands. (Thesis). Virginia Commonwealth University. Retrieved from https://scholarscompass.vcu.edu/etd/4466

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Dang, Chansotheary. “Response of Soil Microbial Communities to Saltwater Intrusion in Tidal Freshwater Wetlands.” 2016. Thesis, Virginia Commonwealth University. Accessed December 15, 2019. https://scholarscompass.vcu.edu/etd/4466.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Dang, Chansotheary. “Response of Soil Microbial Communities to Saltwater Intrusion in Tidal Freshwater Wetlands.” 2016. Web. 15 Dec 2019.

Vancouver:

Dang C. Response of Soil Microbial Communities to Saltwater Intrusion in Tidal Freshwater Wetlands. [Internet] [Thesis]. Virginia Commonwealth University; 2016. [cited 2019 Dec 15]. Available from: https://scholarscompass.vcu.edu/etd/4466.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Dang C. Response of Soil Microbial Communities to Saltwater Intrusion in Tidal Freshwater Wetlands. [Thesis]. Virginia Commonwealth University; 2016. Available from: https://scholarscompass.vcu.edu/etd/4466

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Arizona State University

28. Chapman, Eric. Theoretical and Empirical Investigations of Ecosystem Development in Boreal Wetlands.

Degree: Biology, 2015, Arizona State University

URL: http://repository.asu.edu/items/29669

Subjects/Keywords: Ecology; Soil sciences; Biogeochemistry; Ecosystem development; Maximum Power Principle; Microbial ecology; Systems ecology; Thermodynamics; Wetlands

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APA (6^th Edition):

Chapman, E. (2015). Theoretical and Empirical Investigations of Ecosystem Development in Boreal Wetlands. (Doctoral Dissertation). Arizona State University. Retrieved from http://repository.asu.edu/items/29669

Chicago Manual of Style (16^th Edition):

Chapman, Eric. “Theoretical and Empirical Investigations of Ecosystem Development in Boreal Wetlands.” 2015. Doctoral Dissertation, Arizona State University. Accessed December 15, 2019. http://repository.asu.edu/items/29669.

MLA Handbook (7^th Edition):

Chapman, Eric. “Theoretical and Empirical Investigations of Ecosystem Development in Boreal Wetlands.” 2015. Web. 15 Dec 2019.

Vancouver:

Chapman E. Theoretical and Empirical Investigations of Ecosystem Development in Boreal Wetlands. [Internet] [Doctoral dissertation]. Arizona State University; 2015. [cited 2019 Dec 15]. Available from: http://repository.asu.edu/items/29669.

Council of Science Editors:

Chapman E. Theoretical and Empirical Investigations of Ecosystem Development in Boreal Wetlands. [Doctoral Dissertation]. Arizona State University; 2015. Available from: http://repository.asu.edu/items/29669

Seton Hall University

29. De Coursin Jacobs, Lene Marie. Chironomid Hemoglobin Genetic Diversity as an Indicator of the New Jersey Hackensack Meadowlands Wetland Health.

Degree: MS Biology, Biology, 2006, Seton Hall University

URL: http://scholarship.shu.edu/dissertations/2380

► Kearny Marsh located within the Hackensack Meadowlands is a freshwater wetland impacted by multiple environmental stressors from human activity. The marsh is located in… (more)

▼ Kearny Marsh located within the Hackensack Meadowlands is a freshwater wetland impacted by multiple environmental stressors from human activity. The marsh is located in the northeastern New Jersey metropolitan area. Chironomid larvae, aquatic larvae of midge fly, were analyzed from two Kearny Marsh sample sites, W9 and W22. A previous sediment analysis and toxicity study characterized heavy metal contaminants the marsh. The data results were applied in this thesis study to determine the correlation between environmental stressors and chironomid genetic diversity. Site W9 sediment was impacted by severe levels of total heavy metal contamination, whereas site W22 had just below to below effect levels of contamination. A primary thesis objective was to determine if chironomid hemoglobin genetic diversity is a suitable bioindicator of multiple environmental stressors. Prior to the genetic diversity evaluation, the thesis aim was to identify the genus of field chironomid with a molecular biomarker. SDS-PAGE gel electrophoresis was used to analyze hemoglobin protein band patterns. A molecular method was investigated because chironomid identification based purely on taxonomy is difficult, since the various chironomid species have similar morphological features. The hemoglobin protein measured by SDS-PAGE method demonstrated to be an appropriate identification method, because the hemoglobin protein band patterns, characterized by molecular weight and intensity, directly correlated with the respective head capsule morphology. Also, according to phylogenetic analysis with Hierarchical Cluster Analysis the three species evaluated: Glyptotendipes and Endochironomus clustered separately into two major clades. Chironomus and Glyptotendipes clustered separately within one major clade however diverged into two separate subclusters. These hemoglobin protein band patterns were applied to the genetic diversity study. The second objective was to determine if a correlation existed between multiple environmental stressors and genetic diversity. The thesis prediction was that a negative correlation exists between hemoglobin genetic diversity and heavy metal contamination, compounded by multiple environmental stressors. However, analysis of heavy metal concentration levels between the sample sites and Hb genetic diversity based on the SDS-PAGE gel band patterns indicated a positive correlation between Glyptotendipes hemoglobin protein diversity and heavy metal contamination levels. Site W9 with higher levels of total heavy metals had a greater Hb diversity level, in comparison to site W22 with lower levels of heavy metals. This result may indicate several possible endogenous and exogenous explanations for the genetic diversity difference between the sample sites. The thesis study suggested that a physiological adaptation response, population genetic dynamics (i.e., genetic drift and a in bottleneck), and food web cycle alterations played a key role in Glyptotendipes genetic diversity levels in response to varying levels of environmental… Advisors/Committee Members: Marian Glenn, Carolyn Bentivenga.

Subjects/Keywords: Chironomid hemoglobin; Genetic diversity; New Jersey; Hackensack Meadowlands; Wetlands; Biology; Environmental Indicators and Impact Assessment; Genetics; Biology; Genetics; Life Sciences; Terrestrial and Aquatic Ecology

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APA (6^th Edition):

De Coursin Jacobs, L. M. (2006). Chironomid Hemoglobin Genetic Diversity as an Indicator of the New Jersey Hackensack Meadowlands Wetland Health. (Doctoral Dissertation). Seton Hall University. Retrieved from http://scholarship.shu.edu/dissertations/2380

Chicago Manual of Style (16^th Edition):

De Coursin Jacobs, Lene Marie. “Chironomid Hemoglobin Genetic Diversity as an Indicator of the New Jersey Hackensack Meadowlands Wetland Health.” 2006. Doctoral Dissertation, Seton Hall University. Accessed December 15, 2019. http://scholarship.shu.edu/dissertations/2380.

MLA Handbook (7^th Edition):

De Coursin Jacobs, Lene Marie. “Chironomid Hemoglobin Genetic Diversity as an Indicator of the New Jersey Hackensack Meadowlands Wetland Health.” 2006. Web. 15 Dec 2019.

Vancouver:

De Coursin Jacobs LM. Chironomid Hemoglobin Genetic Diversity as an Indicator of the New Jersey Hackensack Meadowlands Wetland Health. [Internet] [Doctoral dissertation]. Seton Hall University; 2006. [cited 2019 Dec 15]. Available from: http://scholarship.shu.edu/dissertations/2380.

Council of Science Editors:

De Coursin Jacobs LM. Chironomid Hemoglobin Genetic Diversity as an Indicator of the New Jersey Hackensack Meadowlands Wetland Health. [Doctoral Dissertation]. Seton Hall University; 2006. Available from: http://scholarship.shu.edu/dissertations/2380

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