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A habitat suitability model for wading birds in a large subtropical lake: linking hydrologic fluctuations and nesting
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)
The significance of chlorophyll size fractionation in the Indian River Lagoon, Florida
Title
The significance of chlorophyll size fractionation in the Indian River Lagoon, Florida.
Creator
Hargraves, Paul E., Hanisak, M. Dennis
Date Issued
2011
PURL
http://purl.flvc.org/FCLA/DT/3183176
Subject Headings
Microalgae, Chlorophyll, Estuarine ecology--Florida, Plankton, Indian River (Fla. : Lagoon)
Format
Document (PDF)
Indian River study annual report 1973-1974 volume 2
Title
Indian River study annual report 1973-1974 volume 2.
Creator
Fehlmann, H. Adair, Young, David K., Avent, Robert M., Briel, Lawrence I., Eiseman, N. J., Gore, R. H., Jones, Robert S., Kerr, George A., Seibert, Harry H., vonZweck, Ortwin, Wilcox, J. Ross, Harbor Branch Oceanographic Institute, Smithsonian Institution, Link Foundation, Woods Hole Oceanographic Institution
Date Issued
1973-1974
PURL
http://purl.flvc.org/FCLA/DT/3357415
Subject Headings
Indian River (Fla:Lagoon), Estuaries--Florida--Indian River (Lagoon), Estuarine ecology--Florida, Water quality--Florida
Format
Document (PDF)
Indian River study annual report 1974-1975 volume 1
Title
Indian River study annual report 1974-1975 volume 1.
Creator
Young, David K., Harbor Branch Oceanographic Institute, Smithsonian Institution, Link Foundation, Woods Hole Oceanographic Institution
Date Issued
1974-1975
PURL
http://purl.flvc.org/FCLA/DT/3357416
Subject Headings
Indian River (Fla:Lagoon), Estuaries--Florida--Indian River (Lagoon), Estuarine ecology--Florida, Water quality--Florida
Format
Document (PDF)
Indian River study annual report 1975-1976 volume 2
Title
Indian River study annual report 1975-1976 volume 2.
Creator
Kerr, George A., Harbor Branch Oceanographic Institute, Smithsonian Institution, Link Foundation, Woods Hole Oceanographic Institution
Date Issued
1975-1976
PURL
http://purl.flvc.org/FCLA/DT/3357422
Subject Headings
Indian River (Fla:Lagoon), Estuaries--Florida--Indian River (Lagoon), Estuarine ecology--Florida, Water quality--Florida
Format
Document (PDF)
Indian River study annual report 1974-1975 volume 2
Title
Indian River study annual report 1974-1975 volume 2.
Creator
Kerr, George A., Harbor Branch Oceanographic Institute, Smithsonian Institution, Link Foundation, Woods Hole Oceanographic Institution
Date Issued
1974-1975
PURL
http://purl.flvc.org/FCLA/DT/3357418
Subject Headings
Indian River (Fla:Lagoon), Estuaries--Florida--Indian River (Lagoon), Estuarine ecology--Florida, Water quality--Florida
Format
Document (PDF)
Indian River study annual report 1973-1974 volume 1
Title
Indian River study annual report 1973-1974 volume 1.
Creator
Fehlmann, H. Adair, Young, David K., Avent, Robert M., Briel, Lawrence I., Eiseman, N. J., Gore, R. H., Jones, Robert S., Kerr, George A., Seibert, Harry H., vonZweck, Ortwin, Wilcox, J. Ross, Harbor Branch Oceanographic Institute, Smithsonian Institution, Link Foundation, Woods Hole Oceanographic Institution
Date Issued
1973/1974
PURL
http://purl.flvc.org/FCLA/DT/3357412
Subject Headings
Indian River (Fla:Lagoon), Estuaries--Florida--Indian River (Lagoon), Estuarine ecology--Florida, Water quality--Florida
Format
Document (PDF)
Indian River study annual report 1975-1976 volume 1
Title
Indian River study annual report 1975-1976 volume 1.
Creator
Young, David K., Harbor Branch Oceanographic Institute, Smithsonian Institution, Link Foundation, Woods Hole Oceanographic Institution
Date Issued
1975-1976
PURL
http://purl.flvc.org/FCLA/DT/3357421
Subject Headings
Indian River (Fla:Lagoon), Estuaries--Florida--Indian River (Lagoon), Estuarine ecology--Florida, Water quality--Florida
Format
Document (PDF)
Seagrass (Thalassia testudinum) Nutrient Recycling in Florida Bay, a Carbonate-Dominated Shallow Estuary
Title
Seagrass (Thalassia testudinum) Nutrient Recycling in Florida Bay, a Carbonate-Dominated Shallow Estuary.
Creator
Rosch, Kara Baca, Koch, Marguerite, Florida Atlantic University
Abstract/Description
Nitrogen (N) and phosphorus (P) senescent leaf retention, as a measure of resorption, and the subsequent decay of senescent leaves, roots and rhizomes were examined for the dominant tropical seagrass species, Thalassia testudinum, across a nutrient gradient in Florida Bay. Leaf nutrient loss while still attached to the short shoot, from both resorption and decay, was highest at the nutrient-rich (88% P; 51% N) compared to nutrient-poor site ( 49% P; 25% N). High nutrient loss rates by...
Show moreNitrogen (N) and phosphorus (P) senescent leaf retention, as a measure of resorption, and the subsequent decay of senescent leaves, roots and rhizomes were examined for the dominant tropical seagrass species, Thalassia testudinum, across a nutrient gradient in Florida Bay. Leaf nutrient loss while still attached to the short shoot, from both resorption and decay, was highest at the nutrient-rich (88% P; 51% N) compared to nutrient-poor site ( 49% P; 25% N). High nutrient loss rates by attached leaves (0.37-2.5 mg P and 6.5-34 mg N m^-2 d^-1) represented significant recycling (46-87% P and 17-48% N) oftotal estimated external nutrient loads to the bay. In contrast, senescent leaf, rhizome and root nutrient loss rates were > 1 00-fold lower than intact leaves. In tropical /subtropical estuaries dominated by T testudinum, seagrasses may be acting as nutrient pumps, translocating high porewater nutrients to the overlying waters and promoting phytoplankton blooms in the bay.
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Date Issued
2007
PURL
http://purl.flvc.org/fau/fd/FA00000822
Subject Headings
Estuarine ecology--Florida--Florida Bay, Seagrasses--Florida--Florida Bay, Stream ecology--Methodology, Climatic changes
Format
Document (PDF)
Alkaline Phosphatase Activity of Seagrass and Water Column Fractions in Florida Bay
Title
Alkaline Phosphatase Activity of Seagrass and Water Column Fractions in Florida Bay.
Creator
Kletou, Demetris, Koch, Marguerite, Florida Atlantic University, Charles E. Schmidt College of Science, Department of Biological Sciences
Abstract/Description
Few phosphorus (P) depleted coastal marine ecosystems have been examined for their capacity to hydrolyze phosphomonoesters (PMEs). The purpose of this study was to examine seasonal APA partitioning between water column fractions (phytoplankton, bacteria and freely dissolved) and benthic autotrophs in Florida Bay, a P limited shallow estuary using low fluorescent substrate (MUF-P) concentrations (≤2.0 μm). APA was higher at the western and northcentral (751 and 695 nmol L^-1 h^-1) sites and...
Show moreFew phosphorus (P) depleted coastal marine ecosystems have been examined for their capacity to hydrolyze phosphomonoesters (PMEs). The purpose of this study was to examine seasonal APA partitioning between water column fractions (phytoplankton, bacteria and freely dissolved) and benthic autotrophs in Florida Bay, a P limited shallow estuary using low fluorescent substrate (MUF-P) concentrations (≤2.0 μm). APA was higher at the western and northcentral (751 and 695 nmol L^-1 h^-1) sites and driven by cyanobacterial blooms, compared to the P limited northeastern (359 nmol L^-1 h^-1) site The free dissolved fraction (<0.2 μm) accounted for the most APA (~50%), followed by the phytoplankton (>1 μm; 30%) and bacteria fraction (<0.2-> 1.2 μm; 8%). Thaiassia testudinum leaves with their associated epiphytes contributed modestly to water column APA (14 and 20%), and only during non-bloom conditions. Rapid hydrolysis of PMEs (undetected in most samplings) in Florida Bay is probably driven by high concentration of organic substrates for microbial and cyanobacterial activity which results from the close association of the shallow water column with the underlying seagrass community and adjacent Everglades wetlands.
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Date Issued
2007
PURL
http://purl.flvc.org/fau/fd/FA00000780
Subject Headings
Coastal ecology--Florida, Coastal zone management--Florida, Estuarine sediments--Florida--Florida Bay, Aquaculture--Environmental aspects--Florida
Format
Document (PDF)