Current Search: Green turtle--Florida--Palm Beach (x)
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Title
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Home range and movements of juvenile Atlantic green turtles (Chelonia mydas L.) on shallow reef habitats in Palm Beach, Florida, United States of America.
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Creator
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Makowski, Christopher, Florida Atlantic University, Salmon, Michael
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Abstract/Description
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This study's objectives were to determine if coastal (shallow-water, oceanic reef) aggregations of juvenile green turtles (Chelonia mydas L.) in Palm Beach, Florida occupied distinct home ranges and how these home ranges compared in size and resource availability with those studied elsewhere. Six immature green turtles were captured, measured, and subjected to esophageal lavage to determine diet. Each turtle was returned to its initial capture site within 24 h with an ultrasonic transmitter...
Show moreThis study's objectives were to determine if coastal (shallow-water, oceanic reef) aggregations of juvenile green turtles (Chelonia mydas L.) in Palm Beach, Florida occupied distinct home ranges and how these home ranges compared in size and resource availability with those studied elsewhere. Six immature green turtles were captured, measured, and subjected to esophageal lavage to determine diet. Each turtle was returned to its initial capture site within 24 h with an ultrasonic transmitter used to track movements. All turtles were <65 cm SCL, had ingested similar macroalgae, and occupied markedly small home ranges (mean = 2.38 +/- 1.78 km 2), largely restricted to the reef itself. Diving and feeding activity peaked during the day; at night, activity was minimal. The food and sleeping site resource distribution at this specific location coincides with the turtles' home range size and shape, with considerable overlap of core areas.
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Date Issued
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2004
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PURL
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http://purl.flvc.org/fcla/dt/13160
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Subject Headings
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Sea turtles--Florida--Palm Beach, Animal behavior, Wildlife conservation, Green turtle--Florida--Palm Beach
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Format
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Document (PDF)
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Title
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IMPACT OF DEVELOPED COASTLINE ON NESTING AND HATCHLING SEA TURTLES IN SOUTHEASTERN FLORIDA.
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Creator
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MANN, THOMAS MASON, Florida Atlantic University
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Abstract/Description
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The impact of coastline development on nesting sea turtles, nest contents, and hatchlings was investigated in southeastern Florida. There were 95-128 loggerhead (Caretta caretta) nests per mile on six miles of beach. Seventeen green turtle (Chelonia mydas) nests were found. Nesting females did not avoid lighted, developed beaches in favor of undeveloped beaches. Hatchling emergence bearings were measured at 397 nests, and ambient light intensities were correlated with the incidence of...
Show moreThe impact of coastline development on nesting sea turtles, nest contents, and hatchlings was investigated in southeastern Florida. There were 95-128 loggerhead (Caretta caretta) nests per mile on six miles of beach. Seventeen green turtle (Chelonia mydas) nests were found. Nesting females did not avoid lighted, developed beaches in favor of undeveloped beaches. Hatchling emergence bearings were measured at 397 nests, and ambient light intensities were correlated with the incidence of misorientation. Most hatchlings emerging where artificial light sources were visible were misoriented inland. From 0-96% of misoriented hatchlings were killed by automobiles, ghost crabs, or dessication. Mortality was greatest where hatchlings were able to enter roadways, and lowest where barriers prevented this. Analysis of post-emergence contents of 422 nests revealed that mortality within nests was greater on soft beaches with large-grained sand than on fine-grained, firmer beaches, and was increased by human footfalls and beach-cleaning machinery.
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Date Issued
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1977
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PURL
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http://purl.flvc.org/fcla/dt/13839
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Subject Headings
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Sea turtles--Florida--Palm Beach County, Sea turtles--Florida--Broward County, Green turtle, Loggerhead turtle
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Format
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Document (PDF)
