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Title: Distribution and ecology of talitrid amphipods at Lake Wyman, Boca Raton, Florida.
Creator: Garces B., Humberto A., Florida Atlantic University
Abstract/Description: Four sympatric species of semiterrestrial talitrid amphipods were found from quantitative samples taken monthly at Lake Wyman in Boca Raton, Florida from October 1985 through September 1986. These included three beach flea species, Platorchestia platensis (Kroyer), Tethorchestia sp. (undescribed), and Tethorchestria antillensis Bousfield, and one palustral species, Chelorchestria sp. (undescribed). Notes on the vertical distribution, seasonal abundance, size class distribution, reproductive...
Show moreFour sympatric species of semiterrestrial talitrid amphipods were found from quantitative samples taken monthly at Lake Wyman in Boca Raton, Florida from October 1985 through September 1986. These included three beach flea species, Platorchestia platensis (Kroyer), Tethorchestia sp. (undescribed), and Tethorchestria antillensis Bousfield, and one palustral species, Chelorchestria sp. (undescribed). Notes on the vertical distribution, seasonal abundance, size class distribution, reproductive dynamics, and general ecology are given for all talitrid species with emphasis on the most abundant species, Platorchestria platensis and Tethorchestria sp.
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Date Issued: 1988
PURL: http://purl.flvc.org/fcla/dt/14470
Subject Headings: Amphipoda--Florida--Wyman, Lake
Format: Document (PDF)

Title: Pigment-based chemotaxonomy of phytoplankton in Lake Okeechobee, Florida and effects of irradiance on cyanobacteria.
Creator: Skoog, Kathryn Owen., Florida Atlantic University, Louda, J. William
Abstract/Description: The phytoplankton community of Lake Okeechobee, Florida, has been studied and algal divisions were identified. Chemotaxonomy is a process that assigns taxonomic divisions based on ratios of biomarker pigments to chlorophyll, as measured by high performance liquid chromatography (HPLC). Microscopic counts of taxonomic groups were compared to chemotaxonomic groups for lake samples for one year. Lab cultures of cyanobacteria grown at irradiance of 2 to 500 micromoles photons m-2 s-1 (muEinsteins...
Show moreThe phytoplankton community of Lake Okeechobee, Florida, has been studied and algal divisions were identified. Chemotaxonomy is a process that assigns taxonomic divisions based on ratios of biomarker pigments to chlorophyll, as measured by high performance liquid chromatography (HPLC). Microscopic counts of taxonomic groups were compared to chemotaxonomic groups for lake samples for one year. Lab cultures of cyanobacteria grown at irradiance of 2 to 500 micromoles photons m-2 s-1 (muEinsteins) suggested that internal ratios of chlorophyll to both zeaxanthin and echinenone could be used to estimate abundance of cyanobacteria, as either alone missed certain populations. Lake water samples showed that both methods agreed that diatoms and cyanobacteria were the dominant groups, with moderate number of green algae and few dinoflagellates. HPLC evidence revealed cryptophytes more frequently than did microscopy. This suggested that cryptophytes may be more significant than has been previously reported.
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Date Issued: 2003
PURL: http://purl.flvc.org/fcla/dt/13044
Subject Headings: Cyanobacteria, Phytoplankton--Florida--Okeechobee, Lake, Plant pigments--Florida--Okeechobee, Lake, Okeechobee, Lake (Fla )
Format: Document (PDF)

Title: An evaluation of methodology, dispersal and habitat usage of largemouth bass (Micropterus salmoides floridanus) from a supplemental stocking on Lake Okeechobee, Florida.
Creator: Jordan, Alyssa., Charles E. Schmidt College of Science, Department of Biological Sciences
Abstract/Description: The largemouth bass (Micropterus salmoides) fishery was at an all time low on Lake Okeechobee when experimental supplemental stockings were done to try and enhance local bass populations. Largemouth bass had never been stocked on a large lake like Lake Okeechobee. The objectives were to develop a methodology, study dispersal, and compare stocked versus wild bass habitat choices. The methodology underwent considerable changes between studies. Bass dispersed to the edges by the second sampling...
Show moreThe largemouth bass (Micropterus salmoides) fishery was at an all time low on Lake Okeechobee when experimental supplemental stockings were done to try and enhance local bass populations. Largemouth bass had never been stocked on a large lake like Lake Okeechobee. The objectives were to develop a methodology, study dispersal, and compare stocked versus wild bass habitat choices. The methodology underwent considerable changes between studies. Bass dispersed to the edges by the second sampling period, so a larger sampling area may be needed. Water depth and pH were found to be significantly different between wild and stocked bass. Hatchery bass are naèive about predators, which may have resulted in stocked bass not moving to shallower areas like wild bass. The pH was weakly correlated with depth, so differences may be partially due to the fact that as depth increases, pH may also increase.
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Date Issued: 2012
PURL: http://purl.flvc.org/FAU/3342199
Subject Headings: Largemouth bass, Habitat, Largemouth bass, Ecology, Freshwater ecology, Fishery management, Ecology
Format: Document (PDF)

Title: A habitat suitability model for wading birds in a large subtropical lake: linking hydrologic fluctuations and nesting.
Creator: Botta, Richard A., Gawlik, Dale E., Florida Atlantic University, Charles E. Schmidt College of Science, Department of Biological Sciences
Abstract/Description: Anthropogenic hydrologic alterations can affect the quality of lake littoral zone habitats for wading birds, such as the great egret (Ardea alba), snowy egret (Egretta thula), and white ibis (Eudocimus albus). One such lake in Florida, Lake Okeechobee, has experienced a marked decline in wading bird nesting since the 1970’s, concomitant with changes in lake level management. It’s hypothesized that a reduction in foraging habitat has led to the nesting decline; however, there is little...
Show moreAnthropogenic hydrologic alterations can affect the quality of lake littoral zone habitats for wading birds, such as the great egret (Ardea alba), snowy egret (Egretta thula), and white ibis (Eudocimus albus). One such lake in Florida, Lake Okeechobee, has experienced a marked decline in wading bird nesting since the 1970’s, concomitant with changes in lake level management. It’s hypothesized that a reduction in foraging habitat has led to the nesting decline; however, there is little quantitative evidence of this link. A habitat suitability model was developed for Lake Okeechobee wading birds that incorporate the spatial and temporal dynamics of environmental factors that affect wading bird foraging and tests whether foraging habitat is linked to numbers of nests.
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Date Issued: 2014
PURL: http://purl.flvc.org/fau/fd/FA00004082
Subject Headings: Birds -- Florida -- Lake Okeechobee -- Geographical distribution, Estuarine ecology -- Florida -- Lake Okeechobee, Restoration ecology -- Florida -- Lake Okeechobee, Water birds -- Habitat
Format: Document (PDF)

Title: Lake Okeechobee: A case study of intergovernmental coordination among Florida's regulatory agencies.
Creator: Coven, Sheri L. R., Florida Atlantic University, DeGrove, John M., Dorothy F. Schmidt College of Arts and Letters, Department of Political Science
Abstract/Description: The intergovernmental relations among the agencies responsible for regulating activities in and around Lake Okeechobee, and their relations with the industries they regulate, appear to lack the coordination and cooperation necessary to effectively manage the lake's resources. The objective of this thesis is to examine the factors affecting these regulatory relationships, and explore alternatives for resolving intergovernmental conflict. Several consensus building tools are examined, including...
Show moreThe intergovernmental relations among the agencies responsible for regulating activities in and around Lake Okeechobee, and their relations with the industries they regulate, appear to lack the coordination and cooperation necessary to effectively manage the lake's resources. The objective of this thesis is to examine the factors affecting these regulatory relationships, and explore alternatives for resolving intergovernmental conflict. Several consensus building tools are examined, including Resource Planning and Management Committees as authorized by Chapter 380, Florida Statutes, as well as committees created through gubernatorial executive orders. By analyzing and comparing these tools, as well as theories of intergovernmental relations, this study will identify the best available method for fostering intergovernmental coordination in the Lake Okeechobee region and its surrounding areas.
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Date Issued: 1994
PURL: http://purl.flvc.org/fcla/dt/15076
Subject Headings: Administrative agencies--Florida, Regional planning--Florida, Lake renewal--Florida--Okeechobee, Lake, Okeechobee, Lake (Fla)
Format: Document (PDF)

Title: Seasonal dynamics of rotifer and crustacean zooplankton populations in a eutrophic, monomictic lake with a note on rotifer sampling techniques.
Creator: Orcutt, John D., Jr., Pace, M. L., Harbor Branch Oceanographic Institute
Date Issued: 1984
PURL: http://purl.flvc.org/FCLA/DT/3352193
Subject Headings: Rotifera, Crustacea, Zooplankton, Eutrophication, Sampling, Lakes
Format: Document (PDF)

Title: Burbot (Lota Lota) biogenic sedimentary structures in Lake Superior.
Creator: Boyer, L. F., Cooper, R. A., Long, D. T., Askew, T. M., Harbor Branch Oceanographic Institute
Date Issued: 1989
PURL: http://purl.flvc.org/FCLA/DT/3354042
Subject Headings: Burbot, Trace fossils, Sedimentary structures, Superior, Lake
Format: Document (PDF)

Title: Lake Worth Lagoon: Urban Estuary.
Creator: Clark, M. S., Augustus, H., Masterson, J. W., Mojica, E. C., Bower-Dennis, B., Saint, J.
Date Issued: 2000
PURL: http://purl.flvc.org/FCLA/DT/3343829
Subject Headings: Lagoons Florida, Lake Worth Lagoon (Fla.)
Format: Document (PDF)

Title: Prehistoric trade routes in the Lake Okeechobee Region: evidence from the RItta Island and Kreamer Island sites.
Creator: Mount, Gregory J., Dorothy F. Schmidt College of Arts and Letters, Department of Anthropology
Abstract/Description: During pre-Columbian times, the Lake Okeechobee Region was home to people of the Belle Glade culture. The lake provided an area rich in resources that facilitated not only the hunter-gatherer-fisher lifestyle of the people but also supported increased cultural complexity. Over time, people participated in an exchange network, trading materials with cultural groups from a variety of locations. This thesis provides an analysis of those non-local artifacts, their probable points of origins and...
Show moreDuring pre-Columbian times, the Lake Okeechobee Region was home to people of the Belle Glade culture. The lake provided an area rich in resources that facilitated not only the hunter-gatherer-fisher lifestyle of the people but also supported increased cultural complexity. Over time, people participated in an exchange network, trading materials with cultural groups from a variety of locations. This thesis provides an analysis of those non-local artifacts, their probable points of origins and the type of exchange that facilitated the movement of these goods into the region.
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Date Issued: 2009
PURL: http://purl.flvc.org/FAU/217112
Subject Headings: Navigation, Prehistoric, Trade routes, Excavations (Archaeology), Antiquities
Format: Document (PDF)

Title: An ecological study of photoautotrophs in Lake Worth.
Creator: Bolter, Keren P., Charles E. Schmidt College of Science, Department of Chemistry and Biochemistry
Abstract/Description: Little Lake Worth (LLW) (800 m x 200 m x 8« m) is an artificially deep, monomictic marine basin. Pigments and other water quality parameters (O2, pH, T, S, NO3 -. etc.) were utilized to characterize phototrophic communities and water quality. The water column is dominated by diatoms except in the hypolimnon during stratification events (late Summer) when strong anoxia and H2S favors abundant Chlorobium sulfur bacteria. Results indicate nitrate-enriched freshwater baseflow indicative of septic...
Show moreLittle Lake Worth (LLW) (800 m x 200 m x 8« m) is an artificially deep, monomictic marine basin. Pigments and other water quality parameters (O2, pH, T, S, NO3 -. etc.) were utilized to characterize phototrophic communities and water quality. The water column is dominated by diatoms except in the hypolimnon during stratification events (late Summer) when strong anoxia and H2S favors abundant Chlorobium sulfur bacteria. Results indicate nitrate-enriched freshwater baseflow indicative of septic tank seepage during the wet season. This also appears to lead to the accumulation of concentrated organic matter in the sediment. LLW is a potential threat to the health of the ecosystem and the humans using it recreationally. More research is required to verify the effectiveness of restoration options. The spatial and temporal distribution of Chlorobium (phaeovibiroides tent.) and their Bacteriochlorophyll-e homologues is described and compared to similar studies.
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Date Issued: 2010
PURL: http://purl.flvc.org/FAU/3151675
Subject Headings: Algae culture, Water quality, Biotic communities, Marine sediments
Format: Document (PDF)

Title: BENTHIC MACROFAUNAL ASSOCIATIONS IN LAKE WORTH, FLORIDA, AND THEIR USE AS INDICATORS OF WATER QUALITY.
Creator: Reed, John K., Florida Atlantic University
Abstract/Description: Bimonthly benthic samples (April, 1972 to March, 1973) taken at eleven stations provide quantitative reference data on the benthic macrofaunal communities of Lake Worth in Palm Beach County, Florida. Distribution and structure in relation to sediment types and sources of pollution are discussed. One hundred seventy-one taxa were identified. The five top-ranked species were the bivalve Mulinia lateralis; the polychaetes Spiochaetopterus oculatus, Paraprionospio pinnata, and Glycinde solitaria;...
Show moreBimonthly benthic samples (April, 1972 to March, 1973) taken at eleven stations provide quantitative reference data on the benthic macrofaunal communities of Lake Worth in Palm Beach County, Florida. Distribution and structure in relation to sediment types and sources of pollution are discussed. One hundred seventy-one taxa were identified. The five top-ranked species were the bivalve Mulinia lateralis; the polychaetes Spiochaetopterus oculatus, Paraprionospio pinnata, and Glycinde solitaria; and the amphipod Cerapus sp. Stations were grouped as sand, silty-sand, mud, and outfall stations based on similarity of faunal composition and sediment type. The sand and silty-sand stations had the highest diversity (H') and species richness (spp/180) values. The mud and outfall stations had low H' and spp/180 values which were similar to values reported for pollution-stressed areas in other studies. The outfall station was dominated by the pollution-tolerant polychaete Capitella capitata.
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Date Issued: 1975
PURL: http://purl.flvc.org/fcla/dt/13762
Subject Headings: Benthos--Florida--Lake Worth, Water quality
Format: Document (PDF)

Title: Investigating a Cryptic Iron-Nitrogen Cycle in Lake Okeechobee Sediments`.
Creator: Silvera, Owen, Beckler, Jordon, Florida Atlantic University, Department of Marine Science and Oceanography, Charles E. Schmidt College of Science
Abstract/Description: The overall objective was to elucidate the effect of iron (Fe) on nitrogen (N) diagenesis in Lake Okeechobee. Somewhat counterintuitively, sediment ammonium (NH+4) inventories decreased during algal growth as dissolved organic nitrogen (DON) inventories increased. Whole core incubations were staged for denitrification experiments using isotopic N tracer. Core incubations showed the percentage of sediment N removal increase between summer (25 ± 21 %) and winter (39 ± 13 %). The amendment of...
Show moreThe overall objective was to elucidate the effect of iron (Fe) on nitrogen (N) diagenesis in Lake Okeechobee. Somewhat counterintuitively, sediment ammonium (NH+4) inventories decreased during algal growth as dissolved organic nitrogen (DON) inventories increased. Whole core incubations were staged for denitrification experiments using isotopic N tracer. Core incubations showed the percentage of sediment N removal increase between summer (25 ± 21 %) and winter (39 ± 13 %). The amendment of Fe2+ enhanced this seasonal effect likely via dissimilatory nitrate reduction to ammonium (DNRA). The isotopic signature of N2 flux also suggested an additional, sedimentary, N2 source via Fe coupled anaerobic oxidation of ammonium (feammox). Sediment slurry incubations supported the occurrence of both DNRA and feammox, showing first that nitrate (NO3−) was converted to NH4+ via DNRA, which contributed 23-26% of overall NO3− reduction. Fe amendment in slurries similarly stimulated the feammox process. However, aged Fe minerals accumulated linearly with N bound to Fe (Fe-N) in a subseasonal sediment time series, suggesting Fe-organic matter aggregation may lower the sediment NH4+ equilibrium concentration and benthic flux.
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Date Issued: 2024
PURL: http://purl.flvc.org/fau/fd/FA00014486
Subject Headings: Okeechobee, Lake (Fla.), Diagenesis, Sediments (Geology), Biogeochemistry
Format: Document (PDF)

Title: Alternative uses for urban landfill sites as illustrated by the city of Lake Worth, Florida.
Creator: Breese, Edgar Floyd., Florida Atlantic University, Schultz, Ronald R., Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: Today, many municipalities are confronted with a situation whereby their landfills are facing mandatory closure. The topic of post-closure uses for these sites is addressed in this paper through a review of other closed sites and an indepth analysis of the two study sites in Lake Worth, Florida. The review of converted sites indicates a strong preference of municipalities to transform these trash sites into recreational facilities. The indepth analysis of the two study sites involved an...
Show moreToday, many municipalities are confronted with a situation whereby their landfills are facing mandatory closure. The topic of post-closure uses for these sites is addressed in this paper through a review of other closed sites and an indepth analysis of the two study sites in Lake Worth, Florida. The review of converted sites indicates a strong preference of municipalities to transform these trash sites into recreational facilities. The indepth analysis of the two study sites involved an examination of the closure restrictions, inherent characteristics of landfills including the creation of methane gas, possible groundwater contamination and settlement of the waste, and inventory of surrounding land uses including history and current site conditions. This analysis concluded that a recreational conversion at both sites was not only feasible but the best use for the two sites resulting in the development of two conceptual plans for each location.
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Date Issued: 1988
PURL: http://purl.flvc.org/fcla/dt/14430
Subject Headings: Land use, Urban--Florida--Lake Worth, Sanitary landfills--Florida--Lake Worth
Format: Document (PDF)

Title: COMPOSITION AND DISTRIBUTION OF EPIFAUNA ON PROP ROOTS OF RHIZOPHORA MANGLE L. IN LAKE SURPRISE, FLORIDA.
Creator: NICKELSEN, GARY L., Florida Atlantic University
Abstract/Description: The invertebrate epifauna associated with prop roots of a single strand of the red mangrove, Rhizophora mangle L., in Lake Surprise, Florida was sampled in May and November, 1975. A total of 108 species was collected. Dominant species included the amphipods Elasmopus pocillirnanus and Erichthonius brasiliensis, the polychaetes Syllis sp. and Vermiliopsis bermudensis, and the tanaidacean Apseudes propinquus. Fringe roots hosted greater numbers of species and individuals and a greater abundance...
Show moreThe invertebrate epifauna associated with prop roots of a single strand of the red mangrove, Rhizophora mangle L., in Lake Surprise, Florida was sampled in May and November, 1975. A total of 108 species was collected. Dominant species included the amphipods Elasmopus pocillirnanus and Erichthonius brasiliensis, the polychaetes Syllis sp. and Vermiliopsis bermudensis, and the tanaidacean Apseudes propinquus. Fringe roots hosted greater numbers of species and individuals and a greater abundance of sponges and epiphytes than roots in the interior of the strand. The root community was characterized by three assemblages. The algae-amphipod- tanaidacean assemblage was prominent on fringe roots. The sponge-polychaete assemblage (excluding serpulids) was represented well in both areas, but was more prominent at the fringe. The bare root-serpulid assemblage dominated much of the interior. Overall mean qiversi ty (HS) and equitability (E) were 2.60 and 0.65 respectively. Faunal density was 13,200 ind/m^2 of root surface.
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Date Issued: 1976
PURL: http://purl.flvc.org/fcla/dt/13821
Subject Headings: Mangrove ecology--Florida--Lake Surprise, Red mangrove--Florida--Lake Surprise
Format: Document (PDF)

Title: Reconstructing predevelopment conditions of Lake Worth Creek using historical maps, accounts, and aerial photography.
Creator: Farnsworth, Susan O., Florida Atlantic University, Roberts, Charles
Abstract/Description: This thesis develops a technique that combines the use of historical geography with photo interpretation and physical geography to reconstruct the predevelopment landcover of an urban area in southeastern Florida. This technique differs from traditional map making methods by utilizing Geographic Information System modeling procedures to create a conceptual map and test it against independent historical maps and accounts. Historical maps and accounts provided new information about the historic...
Show moreThis thesis develops a technique that combines the use of historical geography with photo interpretation and physical geography to reconstruct the predevelopment landcover of an urban area in southeastern Florida. This technique differs from traditional map making methods by utilizing Geographic Information System modeling procedures to create a conceptual map and test it against independent historical maps and accounts. Historical maps and accounts provided new information about the historic landscape that could not be deferred from present physiographic information. The resulting maps had more detail about the most highly altered areas than the conceptual map created from physiographic information.
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Date Issued: 1998
PURL: http://purl.flvc.org/fcla/dt/15594
Subject Headings: Geomorphological mapping--Florida--Lake Worth Inlet, Lake Worth Inlet (Fla )--Geography
Format: Document (PDF)

Title: Sedimentary characteristics of Sugar Ridge and their implications for sediment transport in Lake Okeechobee, Florida.
Creator: Badiali, Matthew Joel., Florida Atlantic University, Gallagher, Jacqueline
Abstract/Description: Lake Okeechobee is one of the largest lakes in the United States, yet its formation, circulation, and geomorphology are not well known. The ridges that occur on the eastern and northern shorelines of the lake have not been studied. Sugar Ridge is the closest ridge to the lake on the central part of the eastern shoreline. It is composed of medium- to fine-grained quartz (sugar sand) sediments in a dynamic form, superimposed upon organic peat and muck layers. It contains centimeter-scale...
Show moreLake Okeechobee is one of the largest lakes in the United States, yet its formation, circulation, and geomorphology are not well known. The ridges that occur on the eastern and northern shorelines of the lake have not been studied. Sugar Ridge is the closest ridge to the lake on the central part of the eastern shoreline. It is composed of medium- to fine-grained quartz (sugar sand) sediments in a dynamic form, superimposed upon organic peat and muck layers. It contains centimeter-scale bedding that exhibits many sedimentary structures typical of an accretionary barrier beach. Wind waves are considered the most likely cause of transport of the clastic sediments to the study area. Variations in lake level and wind in the region are such that conditions were favorable for development primarily in the winter. That is when lake levels were high enough to reach the ridge and the winds were strong enough to cause waves to transport sediment. Sediment was transported from the mouth of the Kissimmee clockwise around the northern perimeter. However, today the lake is completely enclosed and its levels are constantly manipulated.
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Date Issued: 2000
PURL: http://purl.flvc.org/fcla/dt/12668
Subject Headings: Sediment transport--Florida--Okeechobee, Lake, Beach ridges, Okeechobee, Lake (Fla )
Format: Document (PDF)

Title: Wind speed analysis for Lake Okeechobee.
Creator: Hu, Mingyan, Florida Atlantic University, Qian, Lianfen, Charles E. Schmidt College of Science, Department of Mathematical Sciences
Abstract/Description: In this thesis, we analyze wind speeds collected by South Florida Water Management District at stations L001, L005, L006 and LZ40 in Lake Okeechobee from January 1995 to December 2000. There are many missing values and out-liers in this data. To impute the missing values, three different methods are used: Nearby window average imputation, Jones imputation using Kalman filter, and EM algorithm imputation. To detect outliers and remove impacts, we use ARIMA models of time series. Innovational...
Show moreIn this thesis, we analyze wind speeds collected by South Florida Water Management District at stations L001, L005, L006 and LZ40 in Lake Okeechobee from January 1995 to December 2000. There are many missing values and out-liers in this data. To impute the missing values, three different methods are used: Nearby window average imputation, Jones imputation using Kalman filter, and EM algorithm imputation. To detect outliers and remove impacts, we use ARIMA models of time series. Innovational and additive outliers are considered. It turns out that EM algorithm imputation is the best method for our wind speed data set. After imputing missing values, detecting outliers and removing the impacts, we obtain the best models for all four stations. They are all in the form of seasonal ARIMA(2, 0, 0) x (1, 0, 0)24 for the hourly wind speed data.
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Date Issued: 2002
PURL: http://purl.flvc.org/fcla/dt/12883
Subject Headings: Winds--Speed--Florida--Okeechobee, Lake, Okeechobee, Lake (Fla )--Environmental conditions
Format: Document (PDF)

Title: Using scientific visualization to enhance historical aerial photography in documenting vegetation change over time: Melaleuca quinquenervia, a case study.
Creator: Morrow, Victoria Elizabeth, Florida Atlantic University, Roberts, Charles
Abstract/Description: The objective of this thesis is to conduct a time series analysis of melaleuca growth in the littoral zone of western Lake Okeechobee, using historical aerial photography and Scientific Visualization, Image Enhancement and Image Exploration techniques are examined and compared. Problems associated with creating a time series analysis using aerial photography for use in an integrated GIS are explored. A spatial analysis of environmental factors affecting the growth of Melaleuca quinquenervia...
Show moreThe objective of this thesis is to conduct a time series analysis of melaleuca growth in the littoral zone of western Lake Okeechobee, using historical aerial photography and Scientific Visualization, Image Enhancement and Image Exploration techniques are examined and compared. Problems associated with creating a time series analysis using aerial photography for use in an integrated GIS are explored. A spatial analysis of environmental factors affecting the growth of Melaleuca quinquenervia is conducted, and an analysis of the validity of such statistical inferences for use in future decision making is examined. Results indicate that managed water levels inside Lake Okeechobee did indeed have an effect on the rate of growth of Melaleuca quinquenervia. Recommendations for future data gathering and study are outlined.
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Date Issued: 1997
PURL: http://purl.flvc.org/fcla/dt/15395
Subject Headings: Melaleuca quinquenervia--Monitoring--Florida--Okeechobee, Lake, Vegetation dynamics, Vegetation monitoring, Okeechobee, Lake (Fla)
Format: Document (PDF)

Title: INFLUENCE OF HYDROLOGICAL VARIATION ON WADING BIRD DIETS AND REPRODUCTION IN A LACUSTRINE WETLAND.
Creator: Essian, David A., Gawlik, Dale E., Florida Atlantic University, Department of Biological Sciences, Charles E. Schmidt College of Science
Abstract/Description: Wetlandscape topography creates spatial variation in hydroperiod, which in turn creates spatial variation in biotic communities. Such spatiotemporal variation occurs on a large scale in some of the most productive wetlands in the world, including those of south Florida, U.S.A. Wading birds (Pelicaniformes and Ciconiiformes) are iconic, top-level consumers of such ecosystems. Infrequent drying is necessary to maintain the primary nest substrate (Salix caroliniana), and prey availability is...
Show moreWetlandscape topography creates spatial variation in hydroperiod, which in turn creates spatial variation in biotic communities. Such spatiotemporal variation occurs on a large scale in some of the most productive wetlands in the world, including those of south Florida, U.S.A. Wading birds (Pelicaniformes and Ciconiiformes) are iconic, top-level consumers of such ecosystems. Infrequent drying is necessary to maintain the primary nest substrate (Salix caroliniana), and prey availability is regulated by production of prey biomass in the wet season and the subsequent concentration of prey biomass into shallow pools during the dry season. The goal of this dissertation was to explicitly model wading bird nest abundance and survival as functions of water-level fluctuations, which were spatially nested (i.e., the effects of water-level fluctuations that occurred over a large scale were measured separately from the effects of water-level fluctuations that occurred over a small scale). In Chapter 2, I modeled colony-specific effects of wetlandscape water level fluctuations on wading bird nest abundance. Modeling the response at the colony level allowed the inclusion of important parameters that cannot be measured at the wetlandscape scale. For instance, each colony had its own optimal range of lake stage, which depended on local topography. I used the models to predict cumulative nest abundance under six hydrologic scenarios that were based on potential water management actions at Lake Okeechobee. I found that increasing water levels at the lake would marginally benefit the Great Egret but would substantially reduce long-term Snowy Egret and White Ibis populations. In Chapter 3, I modelled spatiotemporal distributions of fish biomass density in Lake Okeechobee’s littoral zone as a function of hierarchically nested hydrological variables. These models were consistent with the dynamic landscape connectivity model previously described in the literature. I modified the models to predict a binomial response which could then be linked to wading bird foraging threshold. The model predictions were used to estimate the number of available patch days during the breeding season, which was highly correlated with the number of nests for the great egret (Ardea alba), the snowy egret (Egretta thula), and the white ibis (Eudocimus albus). In Chapter 4, I used spatial statistics to better understand how interannual variability in resource wave patterns in the littoral zone influenced wading bird nest abundance. I found that more birds nested in years when the drying edge of the marsh moved further across the landscape. Great egret nest survival increased also, but small heron nest survival decreased. This decrease was likely because small herons continued to nest late into the season in years with longer waves, and, as with most bird species, nests that are initiated later in the season. In Chapter 5, I compiled conventional nestling diet data from 5 wading bird species sampled in 4 wetland types from 2010 to 2020 (not every wetland type was sampled in every year). This chapter provides a comprehensive, broad description of wading bird diets in south Florida, and quantifies interspecies, spatial, and interannual variation in nestling diets. By using a model-based approach to quantify the relative biomass of prey species and prey traits in nestling diets, I provide the first diet analysis that is fully reproducible across the large sympatric range of the wading bird species in the study (great egret, snowy egret, tricolored heron [Egretta tricolor], little blue heron [Egretta caerulea], and wood stork [Mycteria americana]).
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Date Issued: 2022
PURL: http://purl.flvc.org/fau/fd/FA00013908
Subject Headings: Wading birds, Wetland ecology, Okeechobee, Lake (Fla.), Lacustrine ecology, Lake ecology--Florida.
Format: Document (PDF)

Title: Impact of trichloroethylene contaminated groundwater discharged to the main canal and Indian River Lagoon, Vero Beach, Florida.
Creator: Wang, Tsen C., Lenahan, Robert A., Kanik, M., Harbor Branch Oceanographic Institute
Date Issued: 1985
PURL: http://purl.flvc.org/FCLA/DT/3176738
Subject Headings: Groundwater, Groundwater contamination, Trichloroethylene, Groundwater disposal in rivers, lakes, etc.
Format: Document (PDF)

FAU Theses and Dissertations (26)	+ -
HBOI Faculty Contributions (4)	+ -
FAU Graduate Student Research (2)	+ -
FAU Department of History Oral Histories (1)	+ -
Florida Book Collection (1)	+ -

Okeechobee, Lake (Fla) (5)	+ -
Okeechobee, Lake (Fla.) (4)	+ -
Okeechobee, Lake (Fla ) (2)	+ -
Water quality (2)	+ -
Administrative agencies--Florida (1)	+ -

Agriculture (1)	+ -
Algae culture (1)	+ -
Altoona (Pa.) (1)	+ -
Amphipoda--Florida--Wyman, Lake (1)	+ -
Antiquities (1)	+ -
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