Nest temperatures and hatchling sex ratios from loggerhead turtle nests incubated under natural field conditions in Georgia, United States

Chelonian Conservation and Biology

Volumn 11, Issue 1, 2012, Pages 108-116

  Leblanc, Anne Marie ^a   Drake, K Kristina ^a   Williams, Kristina L ^b   Frick, Michael G ^b   Wibbels, Thane ^c   Rostal, David C ^a  

^a GEORGIA SOUTHERN UNIVERSITY   (United States)

^b Caretta Research Project   (United States)

^c UNIVERSITY OF ALABAMA AT BIRMINGHAM   (United States)

Author keywords

Caretta caretta; Cheloniidae; hatchling sex ratio; loggerhead; Reptilia; temperature dependent sex determination; Testudines

Indexed keywords

CARETTA CARETTA; CHELONIIDAE; REPTILIA; TESTUDINES;

EID: 84865487881     PISSN: 10718443     EISSN: None     Source Type: Journal    
DOI: 10.2744/CCB-0915.1     Document Type: Article

References (35)

1. BOWEN, B., AVISE, J.C., RICHARDON, J.I., MEYLAN, A.B., MARGARITOULIS, D., AND HOPKINS-MURPHY, S.R. 1993. Population structure of loggerhead turtles (Caretta caretta) in the northwestern Atlantic Ocean and Mediterranean Sea. Conservation Biology 7(4):834-844.
2. BULL, J.J. 1980. Sex determination in reptiles. Quarterly Review of Biology 55:3-21.
3. BURNHAM, K.P. AND ANDERSON, D.R. 2002. Model Selection and Multimodel Inference: A Practical Information-Theoretic Approach. New York: Springer-Verlag, 496p.
4. DODD, K.L., MURDOCK, C., AND WIBBELS, T. 2006. Interclutch variation in sex ratios produced at pivotal temperature in the red-eared slider, a turtle with temperature-dependent sex determination. Journal of Herpetology 40(4):544-549. (Pubitemid 46657640)
5. DODD, M.G. AND MACKINNON, A.H. 2003. Loggerhead turtle (Caretta caretta) nesting in Georgia, 2003. Annual report submitted to US Fish and Wildlife Service for grant E-5-3 Coastal Endangered Species Management, 46p.
6. ENCALADA, S.E., BJORNDAL, K.A., BOLTEN, A.B., ZURITA, J.C., SCHROEDER, B., POSSARDT, E., SEARS, C.J., AND BOWEN, B.W. 1998. Population structure of loggerhead turtle (Caretta caretta) nesting colonies in the Atlantic and Mediterranean as inferred from mitochondrial DNA control region sequences. Marine Biology 130(4):567-575. (Pubitemid 28165466)
7. FREEDBERG, S., EWERT, M.A., AND NELSON, C.E. 2001. Environmental effects on fitness and consequences for sex allocation in a reptile with environmental sex determination. Evolutionary Ecology Research 3(8):953-967. (Pubitemid 33620361)
8. GIRONDOT, M. 1999. Statistical description of temperaturedependent sex determination using maximum likelihood. Evolutionary Ecology Research 1:479-486. (Pubitemid 129558661)
9. GODLEY, B.J., BRODERICK, A.C., DOWNIE, J.R., GLEN, F., HOUGHTON, J.D., KIRKWOOD, I., REECE, S., AND HAYS, G.C. 2001. Thermal conditions in nests of loggerhead turtles: Further evidence suggesting female skewed sex ratios of hatchling production in the Mediterranean. Journal of Experimental Marine Biology and Ecology 263:45-63. (Pubitemid 32729073)
10. HANSON, J., WIBBELS, T., AND MARTIN, R.E. 1998. Predicted female bias in sex ratios of hatchling loggerhead sea turtles from a Florida nesting beach. Canadian Journal of Zoology 76:1850-1861.
11. HUMASON, G.L. 1972. Animal Tissue Techniques. San Francisco: W.H. Freeman, 641p.
12. JOHNSON, A.S., HILLESTAD, H.O., SHANHOLTZER, S.F., AND SHANHOLTZER, G.F. 1974. An Ecological Survey of the Coastal Region of Georgia. US Department of the Interior. United States National Park Service Scientific Monograph Series No. 3, 233p, + 11 maps.
13. MARCOVALDI, M.A., GODFREY, M.H., AND MROSOVSKY, N. 1997. Estimating sex ratios of loggerhead turtles in Brazil from pivotal incubation durations. Canadian Journal of Zoology 75:755-770.
14. MERCHANT-LARIOS, J. 1999. Determining hatchling sex. In: Eckert, K.L., Bjorndal, K.A., Abreu-Grobois, F.A., and Donnelly, M. (Eds.). Research and Management Techniques for the Conservation of Sea Turtles. IUNC/SSC Marine Turtle Specialists Group Publication No. 4,p. 130-135.
15. MROSOVSKY, N. 1988. Pivotal temperatures for loggerhead turtles (Caretta caretta) from northern and southern nesting beaches. Canadian Journal of Zoology 66:661-669. (Pubitemid 19319884)
16. MROSOVSKY, N. 1994. Sex ratios of sea turtles. The Journal of Experimental Zoology 270:16-27.
17. MROSOVSKY, N. AND PIEAU, C. 1991. Transitional range of temperature, pivotal temperatures and thermosensitive stages for sex determination in reptiles. Amphibia-Reptilia 12:169- 179.
18. MROSOVSKY, N. AND PROVANCHA, J. 1989. Sex ratio of loggerhead sea turtles hatching on a Florida beach. Canadian Journal of Zoology 67:2533-2539. (Pubitemid 20423335)
19. MROSOVSKY, N. AND PROVANCHA, J. 1992. Sex ratio of hatchling loggerhead sea turtles: Data and estimates from a 5-year study. Canadian Journal of Zoology 70:530-538.
20. MROSOVSKY, N. AND YNTEMA, C.L. 1980. Temperature dependence of sexual differentiation in sea turtles: Implications for conservation practices. Biological Conservation 18:271-280.
21. [NMFS and USFW] NATIONAL MARINE FISHERIES SERVICE AND US FISH AND WILDLIFE SERVICE. 2007. Loggerhead sea turtles (Caretta caretta) 5-year review: Summary and evaluation. 65p.
22. [NMFS and USFW] NATIONAL MARINE FISHERIES SERVICE AND US FISH AND WILDLIFE SERVICE. 2008. Recovery Plan for the Northwest Atlantic Population of the Loggerhead Sea Turtle (Caretta caretta). Second revision. Silver Spring, MD: National Marine Fisheries Service.
23. OWENS, D.W. 1997. Hormones in the life history of sea turtles. In: Lutz, P.L. and Musick, J.A. (Eds.). The Biology of Sea Turtles. Boca Raton: CRC Press,p. 315-341.
24. PIEAU, C., GIRONDOT, M., DESVAGES, G., DORIZZI, M., RICHARDMERCIER, N., AND ZABORSKI, P. 1995. Temperature variation and sex determination in reptilia. Experimental Medicine 13: 516-523.
25. PLOTKIN, P.T. AND SPOTILA, J.R. 2002. Post-nesting migrations of loggerhead turtles Caretta caretta from Georgia, USA: Conservation implications for a genetically distinct subpopulation. Oryx 36:396-399. (Pubitemid 43138385)
26. SHOOP, C.R., RUCKDESCHEL, C.A., AND KENNEY, R.D. 1998. Female-biased sex ratio of juvenile loggerhead sea turtles in Georgia. Chelonian Conservation and Biology 3(1):93-96.
27. STOKES, L., WYNEKEN, J., CROWDER, L.B., AND MARSH, J. 2006. The influence of temporal and spacial origin on size and early growth rates in captive loggerhead sea turtles (Caretta caretta) in the United States. Herpetological Conservation and Biology 1(2):71-80.
28. [TEWG] TURTLE EXPERT WORKING GROUP. 2000. Assessment Update for the Kemp's Ridley and Loggerhead Sea Turtle Populations in the Western North Atlantic. US Department of Commerce NOAA Tech. Memor. NMFS-SEFSC-444, 115p.
29. TUTTLE, J. AND ROSTAL, D. 2010. Effects of nest relocation on nest temperature and embryonic development of loggerhead sea turtles (Caretta caretta). Chelonian Conservation and Biology 9(1):1-7.
30. WIBBELS, T. 2003. Critical approaches to sex determination in sea turtles. In: Lutz, P.L., Musick, J.A., and Wyneken, J. (Eds.). The Biology of Sea Turtles. Volume II. Boca Raton: CRC Press,p. 103-134.
31. WIBBELS, T., HILLIS-STARR, Z.M., AND PHILLIPS, B. 1999. Femalebiased sex ratios of hatchling Hawksbill sea turtles from a Caribbean nesting beach. Journal of Herpetology 33(1):142- 145.
32. WIBBELS, T., MARTIN, R.E., OWENS, D.W., AND AMOSS, M.S., Jr. 1991. Female-biased sex ratio of immature loggerhead sea turtles inhabiting the Atlantic coastal waters of Florida. Canadian Journal of Zoology 69:2973-2977.
33. WIBBELS, T., OWENS, D.W., LIMPUS, C.J., MARTIN, R.E., AND AMOSS, M.S., Jr. 1987. A sea turtle sex ratio. American Zoologist 27:21A.
34. YNTEMA, C.L. AND MROSOVSKY, N. 1980. Sexual differentiation in hatchling loggerheads (Caretta caretta) incubated at different controlled temperatures. Herpetologica 36:33-36.
35. YNTEMA, C.L. AND MROSOVSKY, N. 1982. Critical periods and pivotal temperatures for sexual differentiation in loggerhead turtles. Canadian Journal of Zoology 60:1012-1016. (Pubitemid 13281845)