+publisher:"University of Florida" +contributor:("Crisman, Thomas L.")

University of Florida

1. Blanton, Kristen. Development of Bankfull Discharge and Channel Geometry Regressions for Peninsular Florida Streams.

Degree: MS, Environmental Engineering Sciences, 2008, University of Florida

URL: https://ufdc.ufl.edu/UFE0024089

► Regional curves, which relate bankfull discharge and channel geometry (cross-sectional area, width, and mean depth) to drainage area in regions of similar climate, geology, and… (more)

▼ Regional curves, which relate bankfull discharge and channel geometry (cross-sectional area, width, and mean depth) to drainage area in regions of similar climate, geology, and vegetation, have greatly aided in creating target natural channel designs for stream restoration efforts. Regional curves were developed for peninsular Florida based on cross-sectional and longitudinal survey data collected at 17 gaged and 28 ungaged as near-to-natural streams, ranging in drainage area from 0.2 to 311 square miles and valley slope from 0.02 to 2.27%. Based on an analysis of prevalence among sites, slopes, and hydrologic data, the elevation of the flat floodplain was determined to be the most reliable bankfull indicator at sites with a wetland floodplain, while the elevation of the inflection on the bank was the most reliable indicator at sites with an upland floodplain. Analysis of bankfull indicator slopes further revealed that a water slope threshold of approximately 0.5% exists, above which bankfull indicators appear to more reliable, suggesting that slope-area techniques for calculating the bankfull discharge may be unreliable in peninsular Florida streams with a water slope less than 0.5%. The dataset was further divided based on physiography (flatwoods versus highlands), geography (northern versus southern peninsula), and floodplain types (wetland versus upland and cypress-dominated versus non-cypress-dominated) to determine if significant differences exist in the bankfull regressions and/or various dimensionless ratios (sinuosity, width-to-depth, maximum depth-to-mean depth, valley slope, and maximum discharge-to-mean annual discharge) among various peninsular Florida stream subsets. Streams with wetland floodplains were found to have a significantly greater bankfull area and bankfull width than streams with an upland floodplain. Also, streams with cypress-dominated floodplains had a greater width-to-depth ratio than streams with non-cypress-dominated floodplains. Further, streams draining flatwoods physiographies were found to be flashier. These differences may be important considerations when designing natural channels in peninsular Florida. Annual peak flow data for the gaged sites were analyzed to estimate the bankfull discharge return interval using Log Pearson Type III distributions. The bankfull discharge ranged from less than one year to 1.44 years, which is more frequent than the average 1.5-year return interval often cited in the literature. Based on analysis of the flow duration at gaged sites, bankfull discharge for peninsular Florida streams is equaled or exceeded approximately 21% of the time on average, or about 77 days per year. On average, the bankfull discharge is roughly four times that of the mean annual discharge and is 35% of the 1.5-year discharge. Lastly, the regional curves developed for peninsular Florida were compared to regional curves previously developed for other regions of the southeastern United States Coastal Plain. Peninsular Florida bankfull channels were found to have a lower… Advisors/Committee Members: Wise, William R. (committee chair), Crisman, Thomas L. (committee member).

Subjects/Keywords: Coastal plains; Creeks; Floodplains; Geography; Geomorphology; Highlands; Rivers; Streams; Tributaries; Wetlands; bankfull, channel, curves, discharge, geometry, hydraulic, regional, restoration, stream; Manatee River ( local )

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APA (6^th Edition):

Blanton, K. (2008). Development of Bankfull Discharge and Channel Geometry Regressions for Peninsular Florida Streams. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0024089

Chicago Manual of Style (16^th Edition):

Blanton, Kristen. “Development of Bankfull Discharge and Channel Geometry Regressions for Peninsular Florida Streams.” 2008. Masters Thesis, University of Florida. Accessed February 28, 2021. https://ufdc.ufl.edu/UFE0024089.

MLA Handbook (7^th Edition):

Blanton, Kristen. “Development of Bankfull Discharge and Channel Geometry Regressions for Peninsular Florida Streams.” 2008. Web. 28 Feb 2021.

Vancouver:

Blanton K. Development of Bankfull Discharge and Channel Geometry Regressions for Peninsular Florida Streams. [Internet] [Masters thesis]. University of Florida; 2008. [cited 2021 Feb 28]. Available from: https://ufdc.ufl.edu/UFE0024089.

Council of Science Editors:

Blanton K. Development of Bankfull Discharge and Channel Geometry Regressions for Peninsular Florida Streams. [Masters Thesis]. University of Florida; 2008. Available from: https://ufdc.ufl.edu/UFE0024089

University of Florida

2. McMorrow, Shannon E. Impacts of Road Crossings on Headwater Streams.

Degree: MS, Environmental Engineering Sciences, 2008, University of Florida

URL: https://ufdc.ufl.edu/UFE0021885

► Urban development and associated roads adversely affect stream ecosystems through altered hydrology and subsequent erosion and contamination. Florida population growth leads to urbanization of natural… (more)

Subjects/Keywords: Aprons; Chromium; Lead; Nickel; Outliers; Riprap; Sediments; Stormwater; Streams; Zinc; ecology, metals, streams, urban; City of Gainesville ( local )

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APA (6^th Edition):

McMorrow, S. E. (2008). Impacts of Road Crossings on Headwater Streams. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0021885

Chicago Manual of Style (16^th Edition):

McMorrow, Shannon E. “Impacts of Road Crossings on Headwater Streams.” 2008. Masters Thesis, University of Florida. Accessed February 28, 2021. https://ufdc.ufl.edu/UFE0021885.

MLA Handbook (7^th Edition):

McMorrow, Shannon E. “Impacts of Road Crossings on Headwater Streams.” 2008. Web. 28 Feb 2021.

Vancouver:

McMorrow SE. Impacts of Road Crossings on Headwater Streams. [Internet] [Masters thesis]. University of Florida; 2008. [cited 2021 Feb 28]. Available from: https://ufdc.ufl.edu/UFE0021885.

Council of Science Editors:

McMorrow SE. Impacts of Road Crossings on Headwater Streams. [Masters Thesis]. University of Florida; 2008. Available from: https://ufdc.ufl.edu/UFE0021885

University of Florida

3. Bennett, Diane W. Amphibian Responses to Forest Management Practices in Southwestern Georgia.

Degree: M.E., Environmental Engineering Sciences, 2008, University of Florida

URL: https://ufdc.ufl.edu/UFE0021895

► Amphibians (frogs and salamanders) were monitored monthly since December 2002 as part of a study examining the impact of forest harvest and Streamside Management Zone… (more)

Subjects/Keywords: Amphibians; Forest management; Forested watersheds; Forestry; Forests; Logging; Salamanders; Streams; Watersheds; Wildlife management; amphibian, clearcut, coverboard, forestry, georgia, larvae, management, riparian, salamander, smz, southeastern, treefrog

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APA (6^th Edition):

Bennett, D. W. (2008). Amphibian Responses to Forest Management Practices in Southwestern Georgia. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0021895

Chicago Manual of Style (16^th Edition):

Bennett, Diane W. “Amphibian Responses to Forest Management Practices in Southwestern Georgia.” 2008. Masters Thesis, University of Florida. Accessed February 28, 2021. https://ufdc.ufl.edu/UFE0021895.

MLA Handbook (7^th Edition):

Bennett, Diane W. “Amphibian Responses to Forest Management Practices in Southwestern Georgia.” 2008. Web. 28 Feb 2021.

Vancouver:

Bennett DW. Amphibian Responses to Forest Management Practices in Southwestern Georgia. [Internet] [Masters thesis]. University of Florida; 2008. [cited 2021 Feb 28]. Available from: https://ufdc.ufl.edu/UFE0021895.

Council of Science Editors:

Bennett DW. Amphibian Responses to Forest Management Practices in Southwestern Georgia. [Masters Thesis]. University of Florida; 2008. Available from: https://ufdc.ufl.edu/UFE0021895

University of Florida

4. Min, Joong Hyuk. Two-Dimensional (Depth-Averaged) Modeling of Flow and Phosphorus Dynamics in Constructed Wetlands.

Degree: PhD, Environmental Engineering Sciences, 2007, University of Florida

URL: https://ufdc.ufl.edu/UFE0021277

► Constructed wetlands are increasingly being used worldwide to facilitate nutrient removal, in particular, phosphorus in Florida, from agricultural runoff or conventional wastewater treatment plant effluents.… (more)

▼ Constructed wetlands are increasingly being used worldwide to facilitate nutrient removal, in particular, phosphorus in Florida, from agricultural runoff or conventional wastewater treatment plant effluents. Two-dimensional (2-D) flow dynamics, solute transport, and phosphorus dynamics models are developed to simulate spatio-temporal variations of flow and/or phosphorus dynamics in constructed wetlands. The MIKE 21 hydrodynamics (HD), advection-dispersion (AD), and ECO Lab models were adopted as the basic framework with modifications and enhancement of phosphorus kinetic pathways to incorporate ecosystem dynamics among water column, floc and upper soil layers, and vegetative communities including emergent aquatic vegetation (EAV), submerged aquatic vegetation (SAV), and periphyton. The models were calibrated and validated for two constructed wetland systems in Florida: the Orlando Easterly Wetland (OEW) Cell 7 and the Stormwater Treatment Area (STA) 5 northern flow-way. The spatio-temporal water level fluctuations, tracer (bromide/chloride), and phosphorus concentration profiles were reasonably simulated through linkages between the HD and the AD or ECO Lab model, and key model parameters were estimated. The OEW modeling study is focused on impacts of topographic and vegetative heterogeneity on short-circuiting flow through sensitivity analysis deduced during model calibration on a bromide breakthrough curve. The short-term simulation results show that relic ditches or other ditch-shaped landforms and the associated sparse vegetation along the main flow direction intensify the short-circuiting pattern, considerably reducing hydraulic efficiency. In the northern flow-way of STA 5, the HD model calibration for six long-term monitoring sites accurately represented observed annual variations in hydroperiod. On average, the root-mean-square error (RMSE) for predicting daily water level was less than 0.10 m. Manning?s roughness coefficients for dense EAV and SAV areas, which were estimated as a function of vegetation type and density, ranged from 0.67 to 1.0 s/m1/3 and 0.12 to 0.15 s/m1/3, respectively. The AD model calibration for four long-term monitoring sites agreed very well with the measured annual variations in chloride concentration with the average RMSE of 13.48 mg/L. Longitudinal dispersivity was estimated to be 2 m and was over an order of magnitude higher than the transverse one. Results of conservative phosphorus transport simulation confirm the findings of recent STA studies that the EAV systems are less efficient for phosphorus retention compared to the SAV systems and current STA system is not sufficient for reducing dissolved organic phosphorus (DOP) concentration to very low levels. Linked with the HD model, the calibrated ECO Lab phosphorus dynamics model better simulated observed annual variations in soluble reactive phosphorus (SRP) and DOP level than particulate phosphorus (PP) level, which is primarily due to uncertainty of model parameters on spatio-temporal variations of mass transfer mechanisms… Advisors/Committee Members: Wise, William R. (committee chair), Crisman, Thomas L. (committee member), Reddy, Konda R. (committee member), James, Andrew L. (committee member).

Subjects/Keywords: Calibration; Constructed wetlands; Dynamic modeling; Hydraulics; Modeling; Parametric models; Phosphorus; Simulations; Vegetation; Wetlands; 2d, constructed, everglades, hydrodynamics, modeling, phosphorus, stormwater, wetland; Miami metropolitan area ( local )

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APA (6^th Edition):

Min, J. H. (2007). Two-Dimensional (Depth-Averaged) Modeling of Flow and Phosphorus Dynamics in Constructed Wetlands. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0021277

Chicago Manual of Style (16^th Edition):

Min, Joong Hyuk. “Two-Dimensional (Depth-Averaged) Modeling of Flow and Phosphorus Dynamics in Constructed Wetlands.” 2007. Doctoral Dissertation, University of Florida. Accessed February 28, 2021. https://ufdc.ufl.edu/UFE0021277.

MLA Handbook (7^th Edition):

Min, Joong Hyuk. “Two-Dimensional (Depth-Averaged) Modeling of Flow and Phosphorus Dynamics in Constructed Wetlands.” 2007. Web. 28 Feb 2021.

Vancouver:

Min JH. Two-Dimensional (Depth-Averaged) Modeling of Flow and Phosphorus Dynamics in Constructed Wetlands. [Internet] [Doctoral dissertation]. University of Florida; 2007. [cited 2021 Feb 28]. Available from: https://ufdc.ufl.edu/UFE0021277.

Council of Science Editors:

Min JH. Two-Dimensional (Depth-Averaged) Modeling of Flow and Phosphorus Dynamics in Constructed Wetlands. [Doctoral Dissertation]. University of Florida; 2007. Available from: https://ufdc.ufl.edu/UFE0021277

University of Florida

5. Moellendorf, Suzanne. Effects of Irrigation Canals on Stream Ecosystems in a Tropical Dry Forest Region of Costa Rica.

Degree: PhD, Environmental Engineering Sciences, 2009, University of Florida

URL: https://ufdc.ufl.edu/UFE0024889

► The interaction between irrigation and stream systems near Palo Verde National Park, Costa Rica provided an opportunity to investigate critical concepts in stream ecology: ecohydrology,… (more)

▼ The interaction between irrigation and stream systems near Palo Verde National Park, Costa Rica provided an opportunity to investigate critical concepts in stream ecology: ecohydrology, riparian patch ecology, and the river continuum concept, while addressing water management issues. This study integrated these components by exploring: 1) Effects of canals on stream community structure and function, and 2) Whether canals and streams have similar structure and function at the landscape level. The ecohydrology investigation compared intermittent and perennial tropical dry forest streams. It provided details on their aquatic communities and demonstrated the strong influence of streamflow on the colonization, development, and succession of aquatic biota. Furthermore, this investigation increased knowledge of tropical dry forest stream ecosystems, which have been studied very little and exist within a threatened forest ecosystem. It also revealed that impacts of irrigation canals on tropical dry forest streams included increased habitat during the dry season, habitat fragmentation, channel scouring, and water quality changes. The riparian patch investigation compared four distinct stream environments resulting from canal management at a site where an irrigation canal crossing is maintained without riparian vegetation and canal water is directly discharged into the stream. Some differences in physical-chemical characteristics and the biotic community were found between the deforested stretch and the adjacent upstream and downstream forested stretches, but that small-scale riparian deforestation ( < 35 m) may not have severe detrimental effects on the stream community and may actually provide a greater diversity of habitats and resources that enhances biotic richness. In addition, perennial discharge from the canal into the stream may provide refugia in the dry season and a source of colonizers for the seasonal stream reach. The canal continuum investigation analyzed the size classes of irrigation canals that diminish in size over their longitudinal gradient both to determine their structure and function and to examine whether canals follow predictions of the River Continuum Concept (RCC), but in reverse order. As a whole, the canals did support an aquatic community whose structure and function did change over their longitudinal gradient, and the canals did follow some RCC predictions. ( en ) Advisors/Committee Members: Crisman, Thomas L. (committee chair), Wise, William R. (committee member), Mossa, Joann (committee member), Jimenez, Jorge (committee member).

Subjects/Keywords: Canals; Dry forests; Fish; Macroinvertebrates; Oxygen; Rainy seasons; Species; Stream flow; Streams; Taxa; canals, costa, intermittent, macroinvertebrates, patch, rica, riparian, streams, tropical

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APA (6^th Edition):

Moellendorf, S. (2009). Effects of Irrigation Canals on Stream Ecosystems in a Tropical Dry Forest Region of Costa Rica. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0024889

Chicago Manual of Style (16^th Edition):

Moellendorf, Suzanne. “Effects of Irrigation Canals on Stream Ecosystems in a Tropical Dry Forest Region of Costa Rica.” 2009. Doctoral Dissertation, University of Florida. Accessed February 28, 2021. https://ufdc.ufl.edu/UFE0024889.

MLA Handbook (7^th Edition):

Moellendorf, Suzanne. “Effects of Irrigation Canals on Stream Ecosystems in a Tropical Dry Forest Region of Costa Rica.” 2009. Web. 28 Feb 2021.

Vancouver:

Moellendorf S. Effects of Irrigation Canals on Stream Ecosystems in a Tropical Dry Forest Region of Costa Rica. [Internet] [Doctoral dissertation]. University of Florida; 2009. [cited 2021 Feb 28]. Available from: https://ufdc.ufl.edu/UFE0024889.

Council of Science Editors:

Moellendorf S. Effects of Irrigation Canals on Stream Ecosystems in a Tropical Dry Forest Region of Costa Rica. [Doctoral Dissertation]. University of Florida; 2009. Available from: https://ufdc.ufl.edu/UFE0024889

University of Florida

6. Coenen, Danny. Projecting Regional Climate Change in Florida via GIS-Based Downscaling of a General Circulation Model.

Degree: PhD, Interdisciplinary Ecology, 2010, University of Florida

URL: https://ufdc.ufl.edu/UFE0042070

► High-resolution projections of temperature and precipitation changes in Florida during January and July through the year 2100 were produced by GIS-based geostatistical downscaling of general… (more)

▼ High-resolution projections of temperature and precipitation changes in Florida during January and July through the year 2100 were produced by GIS-based geostatistical downscaling of general circulation model outputs provided by the Community Climate System Model 3.0 (CCSM) for IPCC benchmark scenarios B1, A1B and A2. Calibration methods designed to assess and correct for CCSM biases were evaluated and implemented. Results indicate mean statewide temperature anomalies ranging from +1.32degreeC to +2.64degreeC during January by the end of the century. All scenarios reveal a weakening of the latitudinal climatic gradient during winter. The northwestern panhandle is projected to experience the greatest warming, with anomalies decreasing towards the southeast. July anomalies range from +1.22degreeC to +3.38degreeC with little regional differentiation except for scenario A2, which projects Florida to become more isothermal than is presently the case. Only scenario B1 projects greater warming in January than July. Mean statewide precipitation anomalies for January are near-zero for all scenarios, whereas during July, anomalies range from -21 mm to -42 mm. Panhandle precipitation is expected to remain similar to present conditions or slightly wetter. South Florida is projected to experience highly significant drying, with some areas projected to receive as little as 23.6% of current rainfall under scenario A2. Projected patterns of change strongly suggest increasing temperature stress for temperate and warm-temperate taxa near the southern margin of their distribution, while barriers to northward expansion of subtropical and tropical taxa are reduced due to the decreasing slope of the latitudinal winter temperature gradient. As they expand the northern margin of their range, warm-adapted species are likely to successfully compete with and exploit resources made available by failing temperate and warm-temperate communities. Subtropical and tropical species in south Florida will experience increasing water stress due to sharply reduced summer precipitation, favoring drought-tolerant species in novel ecological communities without present analogs. ( en ) Advisors/Committee Members: Crisman, Thomas L. (committee chair), Wise, William R. (committee member), Phlips, Edward J. (committee member), Brenner, Mark (committee member).

Subjects/Keywords: Climate change; Climate models; Counties; Interpolation; Modeling; Precipitation; Statistical models; Surface temperature; Temperature gradients; Temperature profiles; ccsm, change, climate, community, conservation, downscaling, ecology, florida, gis, global, interdisciplinary, kriging, model, modeling, precipitation, system, temperature, warming; City of Jasper ( local )

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APA (6^th Edition):

Coenen, D. (2010). Projecting Regional Climate Change in Florida via GIS-Based Downscaling of a General Circulation Model. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0042070

Chicago Manual of Style (16^th Edition):

Coenen, Danny. “Projecting Regional Climate Change in Florida via GIS-Based Downscaling of a General Circulation Model.” 2010. Doctoral Dissertation, University of Florida. Accessed February 28, 2021. https://ufdc.ufl.edu/UFE0042070.

MLA Handbook (7^th Edition):

Coenen, Danny. “Projecting Regional Climate Change in Florida via GIS-Based Downscaling of a General Circulation Model.” 2010. Web. 28 Feb 2021.

Vancouver:

Coenen D. Projecting Regional Climate Change in Florida via GIS-Based Downscaling of a General Circulation Model. [Internet] [Doctoral dissertation]. University of Florida; 2010. [cited 2021 Feb 28]. Available from: https://ufdc.ufl.edu/UFE0042070.

Council of Science Editors:

Coenen D. Projecting Regional Climate Change in Florida via GIS-Based Downscaling of a General Circulation Model. [Doctoral Dissertation]. University of Florida; 2010. Available from: https://ufdc.ufl.edu/UFE0042070

University of Florida

7. Griswold, Marcus. Riparian Zone Management in Coastal Plain Streams Multi-Scale Effects of Habitat Fragmentation.

Degree: PhD, Environmental Engineering Sciences, 2008, University of Florida

URL: https://ufdc.ufl.edu/UFE0022401

► Riparian zones act as filters for nutrients and sediment, and provide food and habitat for terrestrial and aquatic organisms. Preserving riparian structure in headwater streams… (more)

▼ Riparian zones act as filters for nutrients and sediment, and provide food and habitat for terrestrial and aquatic organisms. Preserving riparian structure in headwater streams is critical to protecting local and downstream aquatic biota. Forestry practices along streams are capable of degrading riparian zone function, leading to increased sediment and nutrient inputs, limiting organic matter availability, and altering light and temperature levels in streams. The effects of forestry practices on aquatic invertebrate communities were evaluated in coastal plain streams by experimentally manipulating two harvest regimes in headwater streams based on Georgia?s best management practices. Though the primary goal of the study was to relate anthropogenic disturbances to water quality, a drought occurring prior to the study created degraded streams with low invertebrate abundance and diversity. The drought resulted in streambeds with large amounts of stored organic matter and nutrients, that became available with re-wetting. A core set of species appeared immediately following drought in the streams, reflecting a shared species pool. These species shared resilient traits, including short life cycles and resistance to desiccation, which allowed for rapid recovery from disturbance. However, temporal shifts in biological traits reflected a more stable hydrologic regime over time. As communities recovered, a shift occurred from individuals that were small, sclerotized, and abundant in drift, to those that were larger, soft-bodied, and rare in drift, indicating that the habitat was more favorable. Thus, such shifts in trait structure and the role of natural disturbances need to be accounted for when bioassessment programs are implemented. To evaluate the effects of logging on streams, macroinvertebrates were sampled in reference and harvest streams before and after an experimental harvest. In response to harvest, communities shifted from detritivores to herbivores, following a shift in the food source from organic matter to algae and macrophytes. This change was most apparent in the thinned SMZ, where chlorophyll a was 50-100% higher than in the intact SMZ and reference streams. In general, changes in community structure were most apparent the first year following the harvest and began to follow a trajectory of recovery over the next four years. Interestingly, multimetric indices of water quality based on macroinvertebrates suggested more favorable conditions in the most disturbed treatment (Thinned SMZ). This relates to increases in food quality, due to an increase in algae and macrophytes, and a decrease in C:N ratios in terrestrially derived leaves. However, invertebrates in the thinned SMZ were represented by species preferring to live in sand, highlighting the increased isolation of patches apparent in these reaches. Observational and experimental field work was used to determine the effects of altered habitat amount and type on macroinvertebrate colonization and movement patterns. Macrophyte patches were more complex,… Advisors/Committee Members: Crisman, Thomas L. (committee chair), Holt, Robert D. (committee member), Wise, William R. (committee member), Bolker, Benjamin M. (committee member).

Subjects/Keywords: Drought; Ecology; Fresh water; Invertebrates; Landscapes; Macroinvertebrates; Macrophytes; Species; Streams; Watersheds; bmp, drought, forestry, logging, macroinvertebrates, quality, riparian, water; City of Tallahassee ( local )

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APA (6^th Edition):

Griswold, M. (2008). Riparian Zone Management in Coastal Plain Streams Multi-Scale Effects of Habitat Fragmentation. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0022401

Chicago Manual of Style (16^th Edition):

Griswold, Marcus. “Riparian Zone Management in Coastal Plain Streams Multi-Scale Effects of Habitat Fragmentation.” 2008. Doctoral Dissertation, University of Florida. Accessed February 28, 2021. https://ufdc.ufl.edu/UFE0022401.

MLA Handbook (7^th Edition):

Griswold, Marcus. “Riparian Zone Management in Coastal Plain Streams Multi-Scale Effects of Habitat Fragmentation.” 2008. Web. 28 Feb 2021.

Vancouver:

Griswold M. Riparian Zone Management in Coastal Plain Streams Multi-Scale Effects of Habitat Fragmentation. [Internet] [Doctoral dissertation]. University of Florida; 2008. [cited 2021 Feb 28]. Available from: https://ufdc.ufl.edu/UFE0022401.

Council of Science Editors:

Griswold M. Riparian Zone Management in Coastal Plain Streams Multi-Scale Effects of Habitat Fragmentation. [Doctoral Dissertation]. University of Florida; 2008. Available from: https://ufdc.ufl.edu/UFE0022401

University of Florida

8. Boodram, Natalie. The Structure and Composition of Riparian Vegetation in Trinidad A Baseline for Conservation and Restoration.

Degree: PhD, Interdisciplinary Ecology, 2009, University of Florida

URL: https://ufdc.ufl.edu/UFE0022771

► THE STRUCTURE AND COMPOSITION OF RIPARIAN VEGETATION IN TRINIDAD: A BASELINE FOR CONSERVATION AND RESTORATION By Natalie Boodram May 2009 Chair: Daniel Zarin Major: Interdisciplinary… (more)

▼ THE STRUCTURE AND COMPOSITION OF RIPARIAN VEGETATION IN TRINIDAD: A BASELINE FOR CONSERVATION AND RESTORATION By Natalie Boodram May 2009 Chair: Daniel Zarin Major: Interdisciplinary Ecology The structure and composition of riparian vegetation of 12 rivers in Trinidad were detailed, along with concurrent environmental and anthropogenic characteristics of the riparian zone and associated watershed. Cluster analysis, non-metric multi-dimensional scaling, and Spearman rank correlations were used to delineate riparian vegetation groups and indicator species, identify the most significant determinants of riparian vegetation groups and determine the most influential scale of variables. These data were used to develop a rapid assessment index to identify and prioritize riparian sites for conservation and restoration. An approximate riparian zone width of 30 m was suggested for Trinidad and a list of 57 native riparian species generated. Of 36 randomly chosen sites, only nine were in forested areas. Fifteen were in abandoned agricultural estates. The others were in agricultural, grassland and developed areas. An exotic species, Bambusa vulgaris, had the highest tree importance value and another exotic, Coffea sp., had the highest ground flora coverage. Nine major vegetation groups were identified and named according to dominant species, distribution and major determinants. These are Justicia secunda-Eschweilera subglandulosa (North Forest), Mora excelsa-Bactris major (South Forest), Saccharum officinarum (Agricultural), Axonopus compressus (Agricultural), Justicia secunda (Secondary Vegetation), Flemingia strobilifera (Fire Influenced), Sorghum sp. (Weedy Species), Acroceras zizanioides (Native Grasses) and Bambusa vulgaris (Bamboo) groups. With the exception of canopy closure, form factor and geomorphology, the best predictors of riparian vegetation groups were anthropogenic variables like the degree of upland and riparian zone edaphic modification, fire, channel modification, distance from paved roads, land ownership and pollution. Out of a 4-level hierarchy of variables, Meso scale (reach level) variables were most important in explaining riparian vegetation patterns. The rapid riparian index, which was developed, used eight variables to identify and prioritize sites for restoration and conservation. These included tree species richness, presence/absence of easily recognizable exotic and secondary vegetation species, and anthropogenic indicators like fire, channel modification and anthropogenic disturbance. ( en ) Advisors/Committee Members: Zarin, Daniel J. (committee chair), Southworth, Jane (committee member), Crisman, Thomas L. (committee member), Reinhardt Adams, Carrie H. (committee member), Alkins-Koo, Mary (committee member).

Subjects/Keywords: Agriculture; Distance functions; Flora; Forests; Land use; Riparian areas; Rivers; Species; Vegetation; Watersheds; caribbean, island, riparian, river, trinidad, wetland

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APA (6^th Edition):

Boodram, N. (2009). The Structure and Composition of Riparian Vegetation in Trinidad A Baseline for Conservation and Restoration. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0022771

Chicago Manual of Style (16^th Edition):

Boodram, Natalie. “The Structure and Composition of Riparian Vegetation in Trinidad A Baseline for Conservation and Restoration.” 2009. Doctoral Dissertation, University of Florida. Accessed February 28, 2021. https://ufdc.ufl.edu/UFE0022771.

MLA Handbook (7^th Edition):

Boodram, Natalie. “The Structure and Composition of Riparian Vegetation in Trinidad A Baseline for Conservation and Restoration.” 2009. Web. 28 Feb 2021.

Vancouver:

Boodram N. The Structure and Composition of Riparian Vegetation in Trinidad A Baseline for Conservation and Restoration. [Internet] [Doctoral dissertation]. University of Florida; 2009. [cited 2021 Feb 28]. Available from: https://ufdc.ufl.edu/UFE0022771.

Council of Science Editors:

Boodram N. The Structure and Composition of Riparian Vegetation in Trinidad A Baseline for Conservation and Restoration. [Doctoral Dissertation]. University of Florida; 2009. Available from: https://ufdc.ufl.edu/UFE0022771

University of Florida

9. Riley, Lance. Freshwater Clams as a Tertiary Treatment for Phosphorus in Agricultural Wastewater.

Degree: PhD, Fisheries and Aquatic Sciences, 2008, University of Florida

URL: https://ufdc.ufl.edu/UFE0022679

► The objective of this study was to determine the potential of using a recirculating raceway system to remove phosphorus-containing material from agricultural wastewater streams. The… (more)

▼ The objective of this study was to determine the potential of using a recirculating raceway system to remove phosphorus-containing material from agricultural wastewater streams. The focus of the research was on the biological and physical characteristics of Corbicula populations and monitoring of various water quality parameters within the system, with special emphasis on phosphorus dynamics. A prototype raceway system was designed and constructed at the University of Florida Dairy Research Unit at Hague, Florida to test the adaptability and phosphorus removal capacity of the clams in wastewater treatment. The ability of freshwater clams to capture, sequester and retain phosphorus-containing material from varying amounts of fertilizer additions was demonstrated in this study. Clam biomass contained an average phosphorus concentration of 0.299 mg P/g of whole clam DW (SE = 0.005), similar to other bivalves. Tagged clams recaptured alive over the course of the study showed growth rates of up to 0.117 mm/day in shell length (0.0024 g clam DW/day), yielding phosphorus removal rates up to 0.0079 mg P/individual/day. Overall, raceway clam populations were subject to high mortality and were unable to demonstrate significantly long-term removal of total phosphorus, dissolved phosphorus or chlorophyll a from overlying source water. High temperatures and possible impacts from amphipod infestations may have affected clam populations. Even though some clams in this study did survive and grow, use of Corbicula culture for phosphorus treatment in Florida agriculture operations may require creative solutions to temperature and parasite problems. Despite these issues, the raceway-based recirculation system design demonstrated in this study provided a dependable, easy to construct and reusable platform for testing aquaculture potential of a variety of organisms in wastewater treatment conditions at large scale. The ultimate goal of this study was to provide an effective biological remediation mechanism for removal of phosphorus from dairy waste streams; however, toxicity of dairy effluent, even at high dilutions, may prohibit application of clam-based aquaculture systems without additional treatment mechanisms. ( en ) Advisors/Committee Members: Phlips, Edward J. (committee chair), Nordstedt, Roger A. (committee member), Baker, Shirley M. (committee member), Baker, Patrick K. (committee member), Crisman, Thomas L. (committee member).

Subjects/Keywords: Aquaculture; Biomass; Clams; Eggshells; Fresh water; Meats; Nutrients; Phosphorus; Ponds; Wastewater; agriculture, aquaculture, biofiltration, clam, dairy, nutrients, phosphorus, raceway, remediation, wastewater; City of Blountstown ( local )

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APA (6^th Edition):

Riley, L. (2008). Freshwater Clams as a Tertiary Treatment for Phosphorus in Agricultural Wastewater. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0022679

Chicago Manual of Style (16^th Edition):

Riley, Lance. “Freshwater Clams as a Tertiary Treatment for Phosphorus in Agricultural Wastewater.” 2008. Doctoral Dissertation, University of Florida. Accessed February 28, 2021. https://ufdc.ufl.edu/UFE0022679.

MLA Handbook (7^th Edition):

Riley, Lance. “Freshwater Clams as a Tertiary Treatment for Phosphorus in Agricultural Wastewater.” 2008. Web. 28 Feb 2021.

Vancouver:

Riley L. Freshwater Clams as a Tertiary Treatment for Phosphorus in Agricultural Wastewater. [Internet] [Doctoral dissertation]. University of Florida; 2008. [cited 2021 Feb 28]. Available from: https://ufdc.ufl.edu/UFE0022679.

Council of Science Editors:

Riley L. Freshwater Clams as a Tertiary Treatment for Phosphorus in Agricultural Wastewater. [Doctoral Dissertation]. University of Florida; 2008. Available from: https://ufdc.ufl.edu/UFE0022679

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