Research Area(s)
Marine biology and vertebrate zoology with an emphasis on sea turtle ecology, behavior, habitat use, and conservation.
RESEARCH
Dr. Mansfield directs the UCF Marine Turtle Research Group (MTRG). Her research program focuses on sea turtle biology, ecology, behavior, and conservation across all sea turtle life stages—from eggs to adults. The MTRG provides field-based educational and research opportunities to students, and scientific advisory service to local, state, and international science and management entities. Dr. Mansfield’s field sites include long-term nesting beach and coastal juvenile sea turtle research programs within Archie Carr National Wildlife Refuge and the Indian River Lagoon in central Florida, and oceanic “lost years” tracking work in the Gulf of Mexico, North and South Atlantic, and Indian Oceans.
Sea turtle reproductive output: The Marine Turtle Research Group (MTRG) has conducted research on the Archie Carr National Wildlife Refuge (ACNWR), adjacent beaches, and in coastal and inland waters for almost 40 years. Data collected by the MTRG were instrumental in establishing the ACNWR in 1991 and a formal partnership agreement was established with the US Fish and Wildlife Service in 2016. The refuge and nearby coastal habitats support the largest loggerhead sea turtle rookery in the Western Hemisphere and among the most important green turtle nesting habitat in North America. Dr. Mansfield’s lab conducts daytime and nighttime sea turtle nesting surveys out of a field station located in the ACNWR in Melbourne Beach, FL. Her lab offers a summer internship at the coast open to UCF undergraduate students.
Coastal juvenile turtle assessments: For over 40 years, the MTRG has conducted in-water surveys of juvenile sea turtles that are found foraging in the Indian River Lagoon, an important developmental habitat for loggerhead and green turtles. Dr. Mansfield’s coastal in-water work includes monitoring the health of sea turtle juveniles found in the Indian River Lagoon and Port Canaveral, FL with projects examining disease ecology and health, animal movement, sea turtle diet, and impacts of harmful algal blooms on turtles.
Discovering the sea turtle “lost years”: Dr. Mansfield pioneered satellite tracking methods for small, fast-growing turtles found offshore. She has a long-term offshore in-water research program in the Northern Gulf of Mexico where she and her students satellite track very small, oceanic stage sea turtles captured in the region associated with the BP oil spill. This is an on-going project that provides the world’s first in situ tracking data on wild-caught oceanic (“lost years”) juvenile turtles.
Sea turtles are highly migratory marine animals and sea turtle conservation is a global issue. The MTRG participates in a number of global initiatives to better understand early sea turtle behavior and dispersal during their “lost years” offshore. The MTRG maintains international scientific partnerships with Projecto TAMAR in Brazil and is a Collaborative Partner with the Sargasso Sea Commission.
PUBLICATIONS
*Indicates a current or former graduate or undergraduate student
*Kelley, J.R., *K.B. Kelley, A.E. Savage, and K.L. Mansfield. 2022 in press. Disease state modeling suggests most juvenile green turtles develop and recover from fibropapillomatosis at a western North Atlantic coastal foraging area. Ecosphere. Open access.
*Martin, K., K.L. Mansfield, and A. Savage. 2022. Adaptive evolution of MHC class I immune genes and disease associations in coastal juvenile sea turtles. Royal Society Open Science. 9: 211190. DOI: http://doi.org/10.1098/rsos.211190. Open Access.
*Welsh, R. and K.L. Mansfield. 2022. Spatial distribution and abundance of green sea turtles on their foraging ground in the Marquesas Keys, Florida. Marine Biology. 169, 22 (2022). DOI: https://doi.org/10.1007/s00227-021-04012-9.
Mansfield, K.L. and L. Coleman. 2022. Migrations through the eyes of a sea turtle. Current Conservation, Vol. 15.4. Open access: https://www.currentconservation.org/migrations-through-the-eyes-of-a-sea-turtle/.
*Kane, R.A., *N. Christodoulides, *I.M. Jensen, *D.J. Becker, K.L. Mansfield, and A.E. Savage. 2021. Gene expression changes with tumor disease and leech parasitism in the juvenile green sea turtle skin transcriptome. GENE. 2021,145800, ISSN 0378-1110. DOI: https://doi.org/10.1016/j.gene.2021.145800.
*Long, C., *R.M. Chabot, *J.R. Kelley, *M.N. El-Khazan, *C.M.S. Benoit, and K.L. Mansfield. 2021. Incongruent long-term trends of a marine consumer and primary producers in a habitat affected by nutrient pollution. Ecosphere. 12(6):e03553. DOI: https://doi.org/10.1002/ecs2.3553. Open access.
Mansfield, K L., J. Wyneken, and J. Luo. 2021. First satellite tracks of “lost years” green turtles support importance of the Sargasso Sea as a sea turtle nursery. Proceedings of the Royal Society B. 288: 20210057. DOI: https://doi.org/10.1098/rspb.2021.0057. Open access.
*Phillips, K.F., *G.T. Stahelin, *R.M. Chabot, and K.L. Mansfield. 2021. A robust approach to estimate minimum size at maturity and examine trends in sea turtle populations. Ecosphere. 12(7):e03631. DOI: https://doi.org/10.1002/ecs2.3631. Open access.
*Phillips, K.F., D.S. Addison, C.R. Sasso, and K.L. Mansfield. 2021. Post-nesting migration routes and fidelity to foraging sites among loggerhead turtles in the western North Atlantic. Bulletin of Marine Science 97(1):1-18, 2021. Published online May 2020. DOI: https://doi.org/10.5343/bms.2019.0099. Open access.
*Rittenburg, L.T., *J. R. Kelley, K.L. Mansfield, A.E. Savage. 2021. Marine leeches are associated with the tumor disease fibropapillomatosis in green sea turtles but not in loggerhead sea turtles. Diseases of Aquatic Organisms. Vol. 143:1-12, 2021. DOI: https://doi.org/10.3354/dao03549
Mansfield, K.L. 2021. Connections, Conversations, and the Joy of Sea Turtles. 2021. Special Tribute to Peter Pritchard. M. Tiwari and J. Fretey (eds). African Sea Turtle Newsletter No. 15, 2021; ISSN 2373-1575.
Open access: https://oceanecology.org/african-sea-turtle-newsletter
Shamblin, B.M, K.M. Hart, K.J. Martin, *S.A. Ceriani, *D.A. Bagley, K.L. Mansfield, L.M. Ehrhart, and C.J. Nairn. 2020. Green turtle mitochondrial microsatellite indicate finer-scale natal homing to isolated islands than to continental nesting sites. Marine Ecology Progress Series. 643: 159-171, 2020. DOI: https://doi.org/10.3354/meps13348.
*Chabot, R.M., *S.A. Ceriani, J.A. Seminoff, *K.A. Mills, and K.L. Mansfield. 2019. Conversion equations for three stable isotopes between green turtle (Chelonia mydas) skin and unhatched eggs. Rapid Communications in Mass Spectrometry. 15;33(15):1277-1285. DOI: 10.1002/rcm.8467. Open access.
Putman, N.F., E.E. Seney, P. Verley, D. Shaver, M. López-Castro, M. Cook, V. Guzmán, B. Brost, S. Ceriani, M. Díaz, J. Raúl, L. J. Peña, M. Tzeek, R. Valverde, C. Cantón, L. Howell, J. Ley, M. Tumlin, W. Teas, C. Caillouet Jr., E. Cuevas, B. Gallaway, P. Richards, and K.L. Mansfield. 2019. Predicted distributions and abundances of the sea turtle “lost years” in the western North Atlantic Ocean. Ecography. DOI: 10.1111/ecog.04929. Open access.
Work, T., J. Dagenais, G. Balazs, K.L. Mansfield, and M. Ackermann. 2019. Different antibody responses against Chelonid herpesvirus 5 in green turtles from Hawaii and Florida explain discrepancies in virus detection. Journal of Virology. 01658-19. DOI: 10.1128/JVI.01658-19.
Caillouet, Jr., C.W., S.W. Raborn, D.J. Shaver, N.F. Putman, B.J. Gallaway, and K.L. Mansfield. 2018. Did declining carrying capacity for the Kemp’s ridley sea turtle population within the Gulf of Mexico contribute to the nesting setback in 2010-2017. Chelonian Conservation Biology. 2018, 17(1):000-000. DOI: https://doi.org/10.2744/CCB-1283.1. Open access.
*Lawrence, M.F., K. L. Mansfield, *E. Sutton, and A.E. Savage. 2018. Molecular evolution of fibropapilloma-associated herpesvirus infecting juvenile green and loggerhead sea turtles. Virology. 521(2018): 190-197. DOI: https://doi.org/10.1016/j.virol.2018.06.012.
*Santos, B.S., DM. Kaplan, M.A.M. Friedrichs, S.G. Barco, K.L. Mansfield, and J.P. Manning. 2018. Consequences of drift and decay of sea turtle carcasses for the estimation of turtle mortality locations from stranding data in the Chesapeake Bay. Ecological Indicators. 84 (2018) 319 -336. DOI: http://dx.doi.org/10.1016/j.ecolind.2017.08.064
Shamblin, B., K.L. Mansfield, E.E. Seney, *C.A. Long, D.A. Bagley, and C.J. Nairn. 2018. Brazilian origin of a neritic juvenile hybrid loggerhead x green turtle foraging in Florida. 2018. Marine Turtle Newsletter. (2018) 155:4-7. Open access.
Wilderman, N. E., C. Gredzens, L. Avens, H.A. Barrios-Garrido, I. Bell, J. Blumenthal, A. Bolten, J.B. McNeill, P. Casale, M. Di Domenico, C.A. Domit, S.P. Epperly, H.H. Godfrey, B.J. Godley, V.G. Carman, M. Hamann, K.M. Hart, T. Ishihara, C.J. Limpus, K.L. Mansfield, T.L. Metz, J.D. Miller, N.J. Pilcher, M.A. Read, C. Sasso, J.A. Seminoff, E.E. Seney, A.S. Williard, J. Tomas, G.M. Velez-Rubio, M. Ware, J.L. Williams, J. Wyneken, and M.M.P.B. Fuentes. 2018. Informing research priorities for immature sea turtles through expert solicitation. Endangered Species Research. Vol. 37: 55-76. DOI: https://doi.org/10.3354/esr00916. Open access.
*Ceriani, S. A., J. F. Weishampel, L.M. Ehrhart, K.L. Mansfield, and M.B. Wunder. 2017. Foraging and recruitment hotspot dynamics for the largest loggerhead turtle rookery in the Atlantic. Scientific Reports. SREP-17-30668. DOI: 10.1038/s41598-017-17206-3. Open access.
Mansfield, K.L., M.L. Mendilaharsu, N.F. Putman, M.A.G. dei Marcovaldi, *A.E. Sacco, G. Lopez, T. Pires, and Y. Swimmer. 2017. First satellite tracks of South Atlantic sea turtle “lost years”: Trans-equatorial and seasonal implications for population connectivity. Proceedings of the Royal Society B. 284:20171730. DOI: http://dx.doi.org/10.1098/rspb.2017.1730. Open access.
Caillouet, Jr., C.W., N.F. Putman, D.J. Shaver, R.A. Valverde, E.E. Seney, K.J. Lohmann, K.L. Mansfield, B.J. Gallaway, J.P. Flanagan, and M.H. Godfrey. 2016. Translocations of injured, sick, or debilitated Kemp’s Ridley sea turtles rescued, resuscitated, rehabilitated, and released require evaluation. Herpetological Conservation Biology. 11:486-496.
Putman, N.F., R. Lumpkin, *A.E. Sacco, and K.L. Mansfield. 2016. Passive drift or active swimming in marine organisms? Proceedings of the Royal Society B. 283: 20161689. DOI: http://dx.doi.org/10.1098/rspb.2016.1689. Open access.
Shamblin, B.M., P.H. Dutton, D.J. Shaver, *D.A. Bagley, L.M. Ehrhart, K.L. Mansfield, J. Peña, and C.J. Nairn. Mexican origins for the Texas green turtle foraging aggregation: a cautionary tale of overcoming incomplete baselines and poor marker resolutions. (2016). Journal of Experimental Marine Biology and Ecology. (2016) – 50828. DOI: http://dx.doi.org/10.1016/j.jembe.2016.11.009.
Putman, N.F. and K.L. Mansfield. 2015. Direct evidence of swimming reveals a new paradigm of dispersal in the sea turtle ‘lost years’. Current Biology. 25, 1-7. DOI: http://dx.doi.org/10.1016/j.cub.2015.03.014. Open access.
Mansfield, K.L., J. Wyneken., W. Porter, and J. Luo. 2014. First satellite tracks of neonate sea turtles redefine the “lost years” oceanic niche. Proceedings of the Royal Society B. Volume 281, No.1781, 20133039. DOI: http://dx.doi.org/10.1098/rspb.2013.3039. Open access.
*Phillips, K.F., K.L. Mansfield, D. Die, and D.S. Addison. 2014. Survival and remigration probabilities for loggerhead sea turtles (Caretta caretta) nesting in the eastern Gulf of Mexico. Marine Biology. 161: 863-870. DOI: 10.1007/s00227-013-2386-2.
Mansfield, K.L. and N.F. Putman. 2013. Oceanic habits and habitats—Caretta caretta. Chapter 8 in: Wyneken, J., J.A. Musick, and K. Lohmann (eds). The Biology of Sea Turtles, Volume III. CRC Press, Boca Raton, FL.
Putman, N.F., K.L. Mansfield, R. He, P. Verley, and D. Shaver. 2013. Predicting the distribution of oceanic stage Kemp’s ridley sea turtles. Biology Letters 9:20130345. DOI: http://dx.doi.org/10.1098/rsbl.2013.0345.
Mansfield, K.L., J. Wyneken, D. Rittschoff, M. Walsh, C.W. Lim and P. Richards. 2012. Satellite tag attachment methods for tracking neonate sea turtles. Marine Ecology Progress Series. 457:181-192. DOI: 10.3354/meps09485. Open access.
Mansfield, K.L., V.S. Saba, J. Keinath, and J.A. Musick. 2009. Satellite telemetry reveals a dichotomy in migration strategies among juvenile loggerhead sea turtles in the northwest Atlantic. Marine Biology. 156:2555-2570. DOI: 10.1007/s00227-009-1279-x
Book Chapters
Ferreira, L.C., K.L. Mansfield, M. Thums, and M. Meekan. 2018. Satellite tracking technologies and their application to shark movement ecology. Chapter 19 in: Carrier, J., M. Heithaus, and C. Simpendorfer (eds). Shark Research: Emerging Technologies and Applications for the Field and Laboratory. CRC Press, Taylor & Francis Group, Boca Raton, FL.
Mansfield, K.L. and N.F. Putman. 2013. Oceanic habits and habitats—Caretta caretta. Chapter 8 in: Wyneken, J., J.A. Musick, and K. Lohmann (eds). The Biology of Sea Turtles, Volume III. CRC Press, Boca Raton, FL.
HIGHLIGHTS
- Biology Graduate Program Coordinator
- Member: Archie Carr National Wildlife Refuge Working Group
- Associate Editor: Herpetological Conservation and Biology
- Co-PI for our department’s National Science Foundation REU SITE: Conservation, Restoration, and Communication
- Collaborating Partner: Sargasso Sea Commission
- Faculty Advisor: Biology Graduate Student Association
- Member: IUCN Species Survival Commission
- Scientific Advisory Board: International Cooperation for Animal Research Using Space (ICARUS) initiative
- Science Friday
- Changing Seas
EDUCATION
- Ph.D. – Marine Science, Fisheries Sciences Department (2006); College of William and Mary, Virginia Institute of Marine Science.
- M.A. – Marine Affairs and Policy (1995); University of Miami, Rosenstiel School of Marine and Atmospheric Science.
- B.A. – Biology, Philosophy (1992); Mount Holyoke College (including semesters abroad with Sea Education Association’s Sea Semester, and the School for Field Studies’ Turk’s and Caicos program).