Marine Biology

, Volume 161, Issue 4, pp 863–870 | Cite as

Survival and remigration probabilities for loggerhead turtles (Caretta caretta) nesting in the eastern Gulf of Mexico

  • Katrina F. Phillips
  • Katherine L. Mansfield
  • David J. Die
  • David S. Addison
Original Paper

Abstract

Few long-term mark-recapture tagging datasets exist to estimate population parameters for loggerhead sea turtle (Caretta caretta) recovery units. Using a two-state open robust design model, we analyzed a 20-year (1990–2009) mark-recapture dataset from the Keewaydin Island loggerhead nesting assemblage off the southwest coast of Florida (USA) in the eastern Gulf of Mexico. For this analysis, 2,292 turtle encounters were evaluated, representing 841 individual nesting turtles. Survival was estimated at 0.73 (95 % CI 0.69–0.76). This estimate is comparable with survival estimates elsewhere in the Peninsular Florida subpopulation and is among the lowest estimates for the Northwest Atlantic loggerhead population. We documented no changes in remigration rates or clutch frequency over time. These are the first survival and remigration probabilities estimated for a loggerhead nesting assemblage in the eastern Gulf of Mexico.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Katrina F. Phillips
    • 1
  • Katherine L. Mansfield
    • 2
    • 3
  • David J. Die
    • 1
  • David S. Addison
    • 4
  1. 1.Rosenstiel School of Marine and Atmospheric ScienceUniversity of MiamiMiamiUSA
  2. 2.Department of BiologyUniversity of Central FloridaOrlandoUSA
  3. 3.NOAA National Marine Fisheries ServiceSoutheast Fisheries Science CenterMiamiUSA
  4. 4.The Conservancy of Southwest FloridaNaplesUSA

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