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Characteristics Affecting Prey Vulnerability and Avian Habitat Selection in the Florida Everglades
Title
Characteristics Affecting Prey Vulnerability and Avian Habitat Selection in the Florida Everglades.
Creator
Harris, Rachael L., Gawlik, Dale E., Florida Atlantic University
Abstract/Description
The vulnerability of prey to capture plays a fundamental role in determining overall prey availability for wading birds. Structural complexity can act to decrease prey vulnerability and influence foraging habitat selection. To determine how structural complexity can affect habitat selection I conducted a use vs. availability study throughout the Florida Everglades in 2005 and 2006. Results indicated that wading birds chose foraging sites that had less emergent vegetation and a thicker...
Show moreThe vulnerability of prey to capture plays a fundamental role in determining overall prey availability for wading birds. Structural complexity can act to decrease prey vulnerability and influence foraging habitat selection. To determine how structural complexity can affect habitat selection I conducted a use vs. availability study throughout the Florida Everglades in 2005 and 2006. Results indicated that wading birds chose foraging sites that had less emergent vegetation and a thicker flocculent layer relative to random sites. Submerged vegetation, and the height of emergent vegetation did not affect wading bird site selection. A difference in habitat selection between years was evident due to hydrological conditions. Ideal hydrological conditions are probably the most important parameter to wading bird success. Other factors affecting prey vulnerability became increasingly important in years of poor hydrology, probably because the penalty for choosing low quality foraging habitat would be greater than in years of more optimal conditions.
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Date Issued
2007
PURL
http://purl.flvc.org/fau/fd/FA00000754
Subject Headings
Everglades (Fla), South Florida Water Management District (Fla ), Wildlife management--Florida--Everglades, Bird populations--Florida--Everglades, Water birds--Florida--Everglades, Wetland ecology--Florida--Everglades
Format
Document (PDF)
Civic environmentalism: A model for Everglades restoration and a sustainable South Florida
Title
Civic environmentalism: A model for Everglades restoration and a sustainable South Florida.
Creator
Jabour, Teresa U., Florida Atlantic University, Lenz, Timothy
Abstract/Description
The Everglades restoration is now the centerpiece for environmental policymaking in South Florida. The 1991 settlement of the Everglades lawsuit marked a new era of environmental politics known as civic environmentalism. Concepts of civic environmentalism are used in this study to determine if policies developed since the 1991 lawsuit settlement support a successful Everglades restoration and a sustainable South Florida, a vital connection that ensures the socio-economic health of the built...
Show moreThe Everglades restoration is now the centerpiece for environmental policymaking in South Florida. The 1991 settlement of the Everglades lawsuit marked a new era of environmental politics known as civic environmentalism. Concepts of civic environmentalism are used in this study to determine if policies developed since the 1991 lawsuit settlement support a successful Everglades restoration and a sustainable South Florida, a vital connection that ensures the socio-economic health of the built environment as well as the environmental health of South Florida's unique ecosystems. Indicators reveal that legislation supports a democratic process, but a nonformal model of civic environmentalism demonstrates that there are weaknesses in many areas, especially on the local level. Results of the study suggest that even though civic environmentalism prevails in some cases, stronger policies that connect both the built and natural environment will be necessary to ensure a successful Everglades restoration and a sustainable South Florida.
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Date Issued
2003
PURL
http://purl.flvc.org/fcla/dt/13014
Subject Headings
South Florida Water Management District (Fla), Restoration ecology--Florida--Everglades, Sustainable development--Florida, Environmental policy--Florida--Everglades
Format
Document (PDF)
Interview with Joe Schweigart – ca. 2008
Title
Interview with Joe Schweigart – ca. 2008.
Creator
Schweigart, Joe (Interviewee), Addeo, David (Interviewer)
Date Issued
2008-02-18
PURL
http://purl.flvc.org/fau/fd/FADT78736
Subject Headings
South Florida Water Management District (Fla.), Everglades (Fla.), Florida -- Environmental conditions, Water resources development -- Environmental aspects -- Florida, Oral histories --Florida, Oral history
Format
Set of related objects
Investigation of flow patterns using geochemical tracers in the Floridan aquifer system, Naples, Florida
Title
Investigation of flow patterns using geochemical tracers in the Floridan aquifer system, Naples, Florida.
Creator
Rectenwald, E. Edward., Florida Atlantic University, Warburton, David L.
Abstract/Description
This study investigated flow patterns in the FAS and tested Kohout's theory of "cyclic flow" in the vicinity of Naples, Florida. Temperature logs were analyzed to identify a reverse geothermal gradient in the Floridan aquifer system. The geochemical analysis consisted of inorganics (major cations and anions), stable isotopes (2H, 18O), radiocarbon (14C), and noble gas (He, Ne, Ar, Kr, Xe) data. The temperature logs were inconclusive in identifying a reverse geothermal gradient in the study...
Show moreThis study investigated flow patterns in the FAS and tested Kohout's theory of "cyclic flow" in the vicinity of Naples, Florida. Temperature logs were analyzed to identify a reverse geothermal gradient in the Floridan aquifer system. The geochemical analysis consisted of inorganics (major cations and anions), stable isotopes (2H, 18O), radiocarbon (14C), and noble gas (He, Ne, Ar, Kr, Xe) data. The temperature logs were inconclusive in identifying a reverse geothermal gradient in the study area. The geochemical analysis suggests that within the FAS relatively old meteoric freshwater circulates in the UFA over relatively young seawater of the MCU and LFA. The analysis also supports the possibility of vertical flow from the LFA to the UFA in the study area along with ancient meteoric recharge into the UFA during the last glacial period. The study was inconclusive in identifying "cyclic flow" in the study area.
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Date Issued
2006
PURL
http://purl.flvc.org/fcla/dt/13356
Subject Headings
South Florida Water Management District (Fla ), Water quality--Florida--Naples--Measurement, Hydrogeology--Florida--Naples, Geomorphological tracers--Utilization, Groundwater flow--Florida--Naples
Format
Document (PDF)