Robinson N.J., and Pfaller, J.B. 2022. Sea turtle epibiosis: global patterns and knowledge gaps. Frontiers in Ecology and Evolution 10:844021.

Pfaller J.B., Weaver, S.M., Williams, K.L., Dodd, M.G., Godfrey, M.H., Griffin, D.B., Pate, S.M., Glen, C.G., Nairns, C.J., and Shamblin, B.M. 2022. One beach amongst many: how weak fidelity to a focal nesting site can bias demographic rates in marine turtles. Marine Biology 169(1):8

Caretta Research Project Annual Report. 2022.


Nalovic, M.A., Ceriani, S.A., Fuentes, M.M.P.B., Pfaller, J.B., Wildermann, N.E., Uribe-Martínez, A., Cuevas, E. (Eds.) (2021). Sea Turtles in the North Atlantic & Wider Caribbean Region. MTSG Regional Report 2021. Report of the IUCN-SSC Marine Turtle Specialist Group, 2021.

Pfaller, J.B., Williams, K.L., Ott, D.L., Harris, M.M., Shamblin, B.M., and Nairn, C.J. 2021. CARETTA CARETTA (Loggerhead SeaTurtle) x LEPIDOCHELYS KEMPII (Kemp’s Ridley Sea Turtle). HYBRID REMIGRATION RECAPTURE. Herpetological Review 52(2):385-386.

Shamblin, B.M., Dodd, M.G., Pate, S.M., Godfrey, M.H., Pfaller, J.B., Williams, K.L., Ondich, B.L., Steen, D.A., Darrow, E.S., Hillbrand, P., and Boettcher, R. 2021. In search of the “missing majority” of nesting loggerhead turtles: improved inter-seasonal recapture rates through subpopulation-scale genetic tagging. Marine Biology 168(2):1-4.

Braman, C.A., Pfaller, J.B., Williams, K.L., and Forschler, B.T. 2021. Presence of native and non-native ants linked to lower emergence success of loggerhead sea turtle nests: implications for management. Environmental Entomology 50(3):649-657.

Caretta Research Project Annual Report. 2021.


Nalovic, M.A., Ceriani, S.A., Fuentes, M.M.P.B., Pfaller, J.B., Wildermann, N.E., Cuevas, E. (Eds.) (2020). Sea Turtles in the North Atlantic & Wider Caribbean Region. MTSG Regional Report 2020. Report of the IUCN-SSC Marine Turtle Specialist Group, 2020.

Limpus CJ, Miller JD, and Pfaller JB. 2020. Flooding-induced mortality of loggerhead sea turtle eggs. Wildlife Research 48(2):142-151.

Butler, Z.P., Wenger, S.J., Pfaller, J.B., Dodd, M.G., Ondich, B.L., Coleman, S., et al. 2020. Predation of loggerhead sea turtle eggs across Georgia's barrier islands. Global Ecology and Conservation 23:e01139.

Pfaller, J.B., Pajuelo, M., Vander Zanden, H.B., Andrews, K.M., Dodd, M.G., Godfrey, M.H., et al. 2020. Identifying patterns in foraging-area origins in breeding aggregations of migratory species: Loggerhead turtles in the Northwest Atlantic. PLoS ONE 15(4):e0231325.

Pfaller, J.B., Goforth, K.M., Gil, M.A., Savoca, M.S. and Lohmann, K.J. 2020. Odors from marine plastic debris elicit foraging behavior in sea turtles. Current Biology 30:213-214.

Caretta Research Project Annual Report. 2020.


Pfaller, J.B., Williams, K.L., Frick, M.G., Shamblin, B.M., Nairn, C.J. and Girondot, M. 2019. Genetic determination of tag loss dynamics in nesting loggerhead turtles: a new chapter in "the tag loss problem". Marine Biology 166:97.

Pfaller, J.B., Shamblin, B.M., Miles, C.L., Williams, K.L. and Nairn, C.J. 2019. CARETTA CARETTA (Loggerhead SeaTurtle) x LEPIDOCHELYS KEMPII (Kemp’s Ridley Sea Turtle). FERTILE HYBRID. Herpetological Review 50(2):347.

Pinou, T., Domenech, F., Lazo-Wasem, E.A., Majewska, R., Pfaller, J.B. and Robinson, N.J. 2019. Standardizing sea turtle epibiont sampling: outcomes of the Epibiont Workshop at the 37th International Sea Turtle Symposium. Marine Turtle Newsletter 157:22-32.

Pfaller JB, Payton AC, Bjorndal KA, Bolten AB, McDaniel SF. 2019. Hitchhiking the high seas: global genomics of rafting crabs. Ecology and Evolution 9:957-974.

Caretta Research Project Annual Report. 2019.


Pfaller, J.B., Chaloupka, M., Bolten, A.B. and Bjorndal, K.A. 2018. Phylogeny, biogeography and methodology: a meta-analytic perspective on heterogeneity in adult marine turtle survival rates. Scientific Reports 8:5852.

Caretta Research Project Annual Report. 2018


Shamblin, B.M., Dodd, M.G., Griffin, D.B., Pate, M. Godfrey M.H., Coyne, M.H., Williams, K.L., Pfaller, J.B., Ondich, B.L., Andrews, K.M., Boettcher, R. and Nairn, C.J. 2017. Improved female abundance and reproductive parameter estimates through subpopulation‑scale genetic capture‑recapture of loggerhead turtlesMarine Biology 164:138.

​Price, J.T., Pfaller, J.B., Vander Zanden, H.B., Williams, K.L., Bolten, A.B. and Bjorndal, K.A. 2017. Foraging area, not trophic position, is linked to head size variation in adult female loggerhead turtles.  Journal of Zoology 302(4):279-287.

Caretta Research Project Annual Report. 2017.


Pfaller, J.B. and Gil, M.A. 2016. Sea turtle symbiosis facilitates social monogamy in oceanic crabs via refuge size. Biology Letters 12:20160607.​

Gil, M.A. and Pfaller, J.B. 2016. Oceanic barnacles act as foundation species on plastic debris: implications for marine dispersalScientific Reports 6:19987.

Caretta Research Project Annual Report. 2016.


Rocha, J.J.C., Pfaller, J.B., Corbetta, R. and Verissimo, L. 2015. Parasitic isopods associated with sea turtles nesting in Brazil. Journal of the Marine Biology Association of the UK 95(5):973-981.

Hammerschlag, N., Coker, J.W., Coyne, M.S., Dodd, M., Frick, M.G., Godfrey, M.H., Godley, B.J., Griffin, D.B., Hartog, K., Murphy, S.R., Murphy, T.M., Nelson, E.R., Williams, K.L., Witt, M.J. and Hawkes, L.A.  2015. Evaluating the landscape of fear between apex predatory sharks and mobile sea turtles across a large dynamic seascape. Ecology 96(8):2117-2126.

Caretta Research Project Annual Report. 2015.


Kaufman, T.J., Pajuelo, M., Bjorndal, K.A., Bolten, A.B., Pfaller, J.B., Williams, K.L. and Vander Zanden, H.B. 2014. Mother-egg stable isotope conversions and effects of lipid extraction and ethanol preservation on loggerhead eggs. Conservation Physiology 2(1):cou049.

Pfaller, J.B., Alfaro-Shigueto, J., Balazs, G.H., Ishihara, T., Kopitsky, K., Mangel, J.C., Peckham, S.H., Bjorndal, K.A. and Baeza, J.A. 2014. Social monogamy in the crab Planes major, a facultative symbiont of loggerhead sea turtles. Journal of Experimental Marine Biology and Ecology 461:124-132.

Pfaller, J.B., Alfaro-Shigueto, J., Balazs, G.H., Ishihara, T., Kopitsky, K., Mangel, J.C., Peckham, S.H., Bolten, A.B. and Bjorndal, K.A. 2014. Hitchhikers reveal cryptic host behavior: new insights from the association between Planes major and sea turtles in the Pacific Ocean. Marine Biology 161:2167-2178.

Caretta Research Project Annual Report. 2014.


Pfaller, J.B., Bjorndal, K.A., Chaloupka, M., Williams, K.L. and Bolten, A.B. 2013. Accounting for imperfect detection is critical for inferring marine turtle nesting population trendsPLoS One 8(4):e62326. 

Lasala, J.A., Harrison, J.S., Williams, K.L. and Rostal, D.C. 2013. Strong male-biased operational sex ratio in a breeding population of loggerhead turtles (Caretta caretta) inferred by paternal genotype reconstruction analysisEcology and Evolution 3(14):4736-4747.

Lasala, J.A. 2011. Multiple paternity of Caretta caretta within the Northwestern Atlantic Ocean population on Wassaw Island, GA. MS Thesis. Georgia Southern University.

Griffin, D.B., Murphy, S.R., Frick, M.G., Broderick, A.C., Coker, J.W., Coyne, M.S., Dodd, M.G., Godfrey, M.H., Godley, B.J., Hawkes, L.A., Murphy, T.M., Williams, K.L. and Witt, M.J.  2013. Foraging habitats and migration corridors utilized by a recovering subpopulation of adult female loggerhead sea turtles: implications for conservationMarine Biology 160:3071-3086.

Frick, M.G. and Pfaller, J.B. 2013. Sea Turtle Epibiosis. In: Wyneken, J., Lohmann, K.J. and Musick, J.A. (Eds.), Biology of Sea Turtles III, Chapter 15 (pp. 399-422), CRC Press, Boca Raton, FL. 

Caretta Research Project Annual Report. 2013.


LeBlanc, A.M., Drake, K.K., Williams, K.L., Frick, M.G., Wibbels, T. and Rostal, D.C. 2012. Nest temperatures and hatchling sex ratios from loggerhead turtle nests incubated under natural field conditions in Georgia, United StatesChelonian Conservation and Biology 11(1):108-116.

Frankel, N.S., Vander Zanden, H.B., Reich, K.J., Williams, K.L. and Bjorndal, K.A. 2012. Mother-offspring stable isotope discrimination in loggerhead sea turtles Caretta carettaEndangered Species Research 17(2):133-138.

Caretta Research Project Annual Report. 2012.


Hawkes, L.A., Witt, M.J., Broderick, A.C., Coker, J.W., Coyne, M.S., Dodd, M., Frick, M.G., Godfrey, M.H., Griffin, D.B., Murphy, S.R., Murphy, T.M., Williams, K.L. and Godley, B.J. 2011. Home on the range: spatial ecology of loggerhead turtles in Atlantic waters of the USADiversity and Distributions 17(4):624-640.

Shamblin, B.M. Dodd, M.G., Williams, K.L., Frick, M.G., Bell, R. and Nairn, C.J. 2011. Loggerhead turtle eggshells as a source of maternal nuclear genomic DNA for population genetic studies.  Molecular Ecology Resources 11(1):110-115.

Shamblin, B.M. Dodd, M.G., Bagley, D.A., Ehrhart, L.M., Tucker, A.D., Johnson, C., Carthy, R.R., Scarpino, R.A., McMichael, E., Addison, D.S., Williams, K.L., Frick, M.G., Ouellette, S., Meylan, A.B., Godfrey, M.H., Murphy, S.R. and Nairn, C.J. 2011. Genetic structure of the southeastern United States loggerhead turtle nesting aggregation: evidence of additional structure within the peninsular Florida recovery unitMarine Biology 158(3): 571-587.

Frick, M.G., Kopitsky, K., Bolten, A.B., Bjorndal, K.A. and Martins, H.R. 2011. Sympatry in grapsoid crabs (genera Planes and Plagusia) from olive ridley sea turtles (Lepidochelys olivacea), with descriptions of crab diets and masticatory structures. Marine Biology 158(8):1699–1708.

Caretta Research Project Annual Report. 2011.


Frick, M.G., Williams, K.L., Bolten, A.B., Bjorndal, K.A. and Martins, H.R. 2009. Foraging ecology of oceanic-stage loggerhead turtles Caretta carettaEndangered Species Research 9(2):91-97.


Pfaller, J.B., Frick, M.G., Reich, K.J., Williams, K.L. and Bjorndal, K.A. 2008. Carapace epibionts of loggerhead turtles (Caretta caretta) nesting at Canaveral National Seashore, FloridaJournal of Natural History 42(13-14):1095-1102.

Williams, K.L. and Frick, M.G. 2008. Tag returns from loggerhead turtles from Wassaw Island, GA.  Southeastern Naturalist 7(1):165-172. 


Williams, K.L., Frick, M.G. and Pfaller, J.B. 2006. First report of green, Chelonia mydas, and Kemp's ridley, Lepidochelys kempii, turtle nesting on Wassaw Island, Georgia, USAMarine Turtle Newsletter 113:8.  

Frick, M.G., Williams, K.L., Bresette, M., Singewald, D.A. and Herren, R.M. 2006. On the occurrence of Columbus crabs (Planes minutus) from loggerhead turtles in Florida, USA. Marine Turtle Newsletter 114:12-14. 

Pfaller, J.B., Bjorndal, K.A., Reich, K.J., Williams, K.L. and Frick, M.G. 2006. Distribution patterns of epibionts on the carapace of loggerhead turtles, Caretta caretta. Marine Biodiversity Records 1:e36.

Frick, M.G. and Williams, K.L. 2006. Charybdis hellerii, a non-indigenous Portunid crab from the gastrointestinal contents of a Kemp's ridley sea turtle (Lepidochelys kempii) in Georgia, USAMarine Turtle Newsletter 111:15. 


Frick, M.G., Williams, K.L., Markesteyn, E.J., Pfaller, J.B. and Frick, R.E. 2004. New records and observations of epibionts from loggerhead sea turtlesSoutheastern Naturalist 3(4):613-620.

Frick, M.G., Williams, K.L., Bolten, A.B., Bjorndal, K.A. and Martins, H.R. 2004. Diet and fecundity of Columbus crabs, Planes minutus, associated with oceanic-stage loggerhead sea turtles, Caretta caretta, and inanimate flotsamJournal of Crustacean Biology 24(2):350-355.


Frick, M.G., Ross, A., Williams, K.L., Bolten, A.B., Bjorndal, K.A. and Martins, H.R. 2003. Epibiotic associates of oceanic-stage loggerhead turtles from the southeastern North AtlanticMarine Turtle Newsletter 101:18-20. 

Rawson, P.D., MacNamee, R., Frick, M.G. and Williams, K.L. 2003. Phylogeography of the coronulid barnacle, Chelonibia testudinaria, from loggerhead sea turtles, Caretta carettaMolecular Ecology 12(10):2697-2706.

Frick, M.G., Mason, P.A., Williams, K.L., Andrews, K. and Gerstung, H. 2003. Epibionts of hawksbill turtles in a Caribbean nesting ground: a potentially unique association with snapping shrimp (Crustacea: Alpheidae). Marine Turtle Newsletter 99:8-11.

Frick, M.G. 2003. The surf crab (Arenaeus cribrarius): a predator and prey item of sea turtles. Marine Turtle Newsletter 99:16-18.


Frick, M.G., Williams, K.L., Veljacic, D.C. 2002. New records of epibionts from loggerhead sea turtles Caretta caretta (L.). Bulletin of Marine Science 70(3):953-956.

Frick, M.G., Williams, K.L., Veljacic, D.C. 2002. A record of the northernmost, verified leatherback sea turtle nesting event on the east coast of the USAMarine Turtle Newsletter 97:12-13.  


Williams, K.L. and Frick, M.G. 2001. Results from the long-term monitoring of nesting loggerhead sea turtles (Caretta caretta) on Wassaw Island, Georgia: 1973-2000.  NOAA Technical Memorandum NMFS-SEFSC-446, 32 pp.

Frick, M.G., Williams, K.L., and Pierrard, L. 2001. Summertime foraging and feeding by immature loggerhead sea turtles (Caretta caretta) from Georgia. Chelonian Conservation and Biology 4(1):178-181.


Frick, M.G., Williams, K.L., and Veljacic, D. 2000. Additional evidence supporting a cleaning association between epibiotic crabs and sea turtles: how will the harvest of sargassum seaweed impact this relationship? Marine Turtle Newsletter 90:11-13.

Frick, M.G., Williams, K.L., Veljacic, D., Pierrard, L., Jackson, J.A. and Knight, S.E. 2000. Newly documented epibiont species from nesting loggerhead sea turtles (Caretta caretta) in Georgia, USA.  Marine Turtle Newsletter 88:3-5. 

Frick, M.G., Slay, C.K., Quinn, C.A., Windham-Reid, A., Duley, P.A., Ryder, C.M. and Morse, L.J. 2000. Aerial observations of courtship behavior in loggerhead sea turtles (Caretta caretta) from southeastern Georgia and northeastern Florida. Journal of Herpetology 34(1):153-158.


Frick, M.G., Quinn, C.A. and Slay, C.K. 1999. Dermochelys coriacea (leatherback sea turtle), Lepidochelys kempii (Kemp's ridley sea turtle), Caretta caretta (loggerhead sea turtle). Pelagic feeding. Herpetological Review 30(3):65.


Frick, M.G., Williams, K.L. and Robinson, M. 1998. Epibionts associated with nesting loggerhead sea turtles (Caretta caretta) in Georgia, USAHerpetological Review 29(4):211-214.

Frick, M.G. 1998. Caretta caretta (Loggerhead sea turtles). Predation. Herpetological Review 29(4). p.234.


Frick, M.G. 1997. Lepidochelys kempii (Kemp's ridley), Caretta caretta (loggerhead) and Malaclemys terrapin centrata (Diamondback terrapin). Diet and predation. Herpetological Review 28(3):149.


Frick, M.G. 1996. A Guide for the Identification of Stranded Sea Turtles: Eastern United States and Gulf of Mexico.  Savannah Science Museum Special Publication No. 4 iii plus 22 pp.