You are here
Migratory connectivity and carry-over effects in Northwest Atlantic loggerhead turtles (Caretta caretta, L.)
- Date Issued:
- 2014
- Abstract/Description:
- Migration is a widespread and complex phenomenon in nature that has fascinated humans for centuries. Connectivity among populations influences their demographics, genetic structure and response to environmental change. Here, I used the loggerhead turtle (Caretta caretta, L.) as a study organism to address questions related to migratory connectivity and carry-over effects using satellite telemetry, stable isotope analysis and GIS interpolation methods. Telemetry identified foraging areas previously overlooked for loggerheads nesting in Florida. Next, I validated and evaluated the efficacy of intrinsic markers as a complementary and low cost tool to assign loggerhead foraging regions in the Northwest Atlantic Ocean (NWA), using both a spatially implicit and spatially explicit (isoscapes) approach. I then focused on the nesting beaches and developed a common currency for isotopic studies based on unhatched eggs, which provide a non-invasive and non-destructive method for more extensive sampling to elucidate isotopic patterns across broader spatiotemporal scales. Lastly, I found that intra-population variations in foraging strategies affect annual and long-term reproductive output of loggerheads nesting in Florida. Understanding geospatial linkages is critical to the fostering of appropriate management and conservation strategies for migratory species. My multi-faceted approach contributes to the growing body of literature exploring migratory connectivity and carry-over effects.
Title: | Migratory connectivity and carry-over effects in Northwest Atlantic loggerhead turtles (Caretta caretta, L.). |
![]() ![]() |
---|---|---|
Name(s): |
Ceriani, Simona, Author Weishampel, John, Committee Chair Ehrhart, Llewellyn, Committee CoChair Walters, Linda, Committee Member Quintana-Ascencio, Pedro, Committee Member Roth, James, Committee Member Valdes, Eduardo, Committee Member University of Central Florida, Degree Grantor |
|
Type of Resource: | text | |
Date Issued: | 2014 | |
Publisher: | University of Central Florida | |
Language(s): | English | |
Abstract/Description: | Migration is a widespread and complex phenomenon in nature that has fascinated humans for centuries. Connectivity among populations influences their demographics, genetic structure and response to environmental change. Here, I used the loggerhead turtle (Caretta caretta, L.) as a study organism to address questions related to migratory connectivity and carry-over effects using satellite telemetry, stable isotope analysis and GIS interpolation methods. Telemetry identified foraging areas previously overlooked for loggerheads nesting in Florida. Next, I validated and evaluated the efficacy of intrinsic markers as a complementary and low cost tool to assign loggerhead foraging regions in the Northwest Atlantic Ocean (NWA), using both a spatially implicit and spatially explicit (isoscapes) approach. I then focused on the nesting beaches and developed a common currency for isotopic studies based on unhatched eggs, which provide a non-invasive and non-destructive method for more extensive sampling to elucidate isotopic patterns across broader spatiotemporal scales. Lastly, I found that intra-population variations in foraging strategies affect annual and long-term reproductive output of loggerheads nesting in Florida. Understanding geospatial linkages is critical to the fostering of appropriate management and conservation strategies for migratory species. My multi-faceted approach contributes to the growing body of literature exploring migratory connectivity and carry-over effects. | |
Identifier: | CFE0005470 (IID), ucf:50390 (fedora) | |
Note(s): |
2014-05-01 Ph.D. Sciences, Biology Doctoral This record was generated from author submitted information. |
|
Subject(s): | migratory connectivity -- loggerhead turtle -- stable isotopes -- carbon -- nitrogen -- carry-over effects -- isoscapes | |
Persistent Link to This Record: | http://purl.flvc.org/ucf/fd/CFE0005470 | |
Restrictions on Access: | public 2014-11-15 | |
Host Institution: | UCF |