The diamondback terrapin (Malaclemys terrapin) is a small estuarine turtle distributed along the Atlantic and Gulf Coasts of the USA that is threatened by drowning in crab pots, road mortality, exploitation in the pet trade, and habitat loss. Little is known about the movement patterns and home ranges of these turtles, particularly along the U.S. Gulf of Mexico coast. Satellite tags were deployed on two adult female terrapins captured at two distinct sites in Northwest Florida. A first-difference correlated random walk approach was used to determine distances traveled and estimate home range for each individual. The two terrapins were tracked for 146 and 147 days, and the total distance traveled for each terrapin was 70.1 km and 723.0 km, respectively. The maximum distance moved from capture location was 11.3 km and 49.6 km. Home ranges here were much larger than those previously reported in other studies. The movements we documented were greater than expected and indicate habitat protection for this species may need to be expanded to incorporate more distant foraging sites.
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Brennessel, B. 2006. Diamonds in the Marsh: A natural history of the diamondback terrapin. Hanover and London: University Press of New England.
Brooks, S.P., and A. Gelman. 1997. General methods for monitoring convergence of iterative simulations. Journal of Computational and Graphical Statistics 7: 434–455.
Buhlmann, K., and T.D. Tuberville. 1998. Use of passive integrated transponder (PIT) tags for marking small freshwater turtles. Chelonian Conservation and Biology.
Butler, J.A. 2002. Population ecology, home range, and seasonal movements of the Carolina diamondback terrapin, Malaclemys terrapin centrata, in northeastern Florida. Florida Fish and Wildlife Conservation Commission.
Butler, J.A., and G.L. Heinrich. 2013. Distribution of the ornate diamondback terrapin (Malaclemys terrapin macrospilota) in the Big Bend region of Florida. Southeastern Naturalist 12 (3): 552–567. https://doi.org/10.1656/058.012.0309.
Cagle, F.R. 1939. A system of marking turtles for future identification. Copeia 1939 (3): 170–173.
CLS 2011. Argos user’s manual: worldwide tracking and environmental monitoring by satellite. 19 August 2011 update. CLS, Toulouse. Available: http://www.argossystem.org/web/en/76-user-s-manual.php.
Coleman, A.T., T. Wibbels, K. Marion, D. Nelson, and J. Dindo. 2011. Effect of by-catch reduction devices (BRDS) on the capture of diamondback terrapins (Malaclemys terrapin) in crab pots in an Alabama salt marsh. Journal of Alabama Academy of Science 82: 145–157.
Coleman, A.T., T. Wibbels, K. Marion, T. Roberge, D. Nelson, and J. Dindo. 2014. Dispersal behavior of diamondbacked terrapin post-hatchlings. Southeastern Naturalist 13 (3): 572–586. https://doi.org/10.1656/058.013.0315.
Crawford, B.A., J.C. Maerz, N.P. Nibbelink, K.A. Buhlmann, and T.M. Norton. 2014. Estimating the consequences of multiple threats and management strategies for semi-aquatic turtles. Journal of Applied Ecology 51 (2): 359–366. https://doi.org/10.1111/1365-2664.12194.
Denton, M.J., A.W.J. Demopoulos, J.D. Baldwin, B.J. Smith, and K.M. Hart. 2019. Stable isotope analysis enhances our understanding of diamondback terrapin (Malaclemys terrapin) foraging ecology. Estuaries and Coasts 42. Estuaries and Coasts 42 (2): 596–611. https://doi.org/10.1007/s12237-018-0476-6.
Denwood, M.J. 2016. runjags: An R Package Providing interface utilities, model templates, parallel computing methods and additional distributions for MCMC models in JAGS. Journal of Statistical Software 71: 1–25. https://doi.org/10.18637/jss.v071.i09.
Dorcas, M.E., J.D. Willson, and J.W. Gibbons. 2007. Crab trapping causes population decline and demographic changes in diamondback terrapins over two decades. Biological Conservation 137 (3): 334–340. https://doi.org/10.1016/j.biocon.2007.02.014.
Drabik-Hamshare, M., and C.T. Downs. 2017. Movement of leopard tortoises in response to environmental and climatic variables in a semi-arid environment. Movement Ecology 5 (1): 1–16. https://doi.org/10.1186/s40462-017-0096-y.
Feinberg, J.A., and R.L. Burke. 2003. Nesting ecology and predation of diamondback Terrapins, Malaclemys terrapin, at Gateway National Recreation Area, New York. Journal of Herpetology 37 (3): 517–526. https://doi.org/10.1670/207-02A.
Florida Department of Environmental Protection. 2008. St . Joseph Bay Aquatic Preserve Management Plan. Tallahassee, FL.
Fortin, G., G. Blouin-Demers, and Y. Dubois. 2012. Landscape composition weakly affects home range size in blanding’s turtles (Emydoidea blandingii). Ecoscience 19 (3): 191–197. https://doi.org/10.2980/19-3-3528.
Gaulin, S.J.C., and R.W. Fitzgerald. 1988. Home-range size as a predictor of mating systems in Microtus. Journal of Mammalogy 69 (2): 311–319.
Gibbons, J.W., J.E. Lovich, A.D. Tucker, N.N. FitzSimmons, and J.L. Greene. 2001. Demographic and ecological factors affectinve conservation and management of the diamondback terrapin (Malaclemys terrapin) in South Carolina. Chelonian Conservation and Biology 4: 66–74.
Godley, B.J., J.M. Blumenthal, A.C. Broderick, M.S. Coyne, M.H. Godfrey, L.A. Hawkes, and M.J. Witt. 2008. Satellite tracking of sea turtles: where have we been and where do we go next? Endangered Species Research 4: 3–22. https://doi.org/10.3354/esr00060.
Grosse, A.M., B.A. Crawford, J.C. Maerz, K.A. Buhlmann, T. Norton, M. Kaylor, and T.D. Tuberville. 2015. Effects of vegetation structure and artificial nesting habitats on hatchling sex determination and nest survival of diamondback terrapins. Journal of Fish and Wildlife Management 6 (1): 19–28. https://doi.org/10.3996/082014-JFWM-063.
Harden, L.A., and A.S. Williard. 2012. Using spatial and behavioral data to evaluate the seasonal bycatch risk of diamondback terrapins Malaclemys terrapin in crab pots. Marine Ecology Progress Series 467: 207–217. https://doi.org/10.3354/meps09958.
Harden, L.A., N.A. Diluzio, J.W. Gibbons, and M.E. Dorcas. 2007. Spatial and thermal ecology of diamondback terrapins (Malaclemys terrapin) in a South Carolina salt marsh. Journal of the North Carolina Academy of Science 123: 154–162.
Hart, K.M., and D.L. Lee. 2006. The diamondback terrapin: the biology, ecology, cultural history, and conservation status of an obligate estuarine turtle. Studies in Avian Biology 32: 206–213.
Hart, K.M., and C.C. McIvor. 2008. Demography and ecology of mangrove diamondback terrapins in a wilderness area of Everglades National Park, Florida, USA. Copeia 2008 (1): 200–208. https://doi.org/10.1643/CE-06-161.
Hart, K.M., M.M. Lamont, A.R. Sartain, and I. Fujisaki. 2014. Migration, foraging, and residency patterns for northern gulf loggerheads: Implications of local threats and international movements. PLoS ONE 9. https://doi.org/10.1371/journal.pone.0103453.
Hays, G.C., S. Åkesson, B.J. Godley, P. Luschi, and P. Santidrian. 2001. The implications of location accuracy for the interpretation of satellite-tracking data. Animal Behaviour 61 (5): 1035–1040.
Hooge, P.H., W. Eichenlaub, and E.R. Hooge. 2001. Animal movement, 2.5. Anchorage, AK.
Hopkinson, C.S., A.E. Lugo, M. Alber, A.P. Covich, and S.J. Van Bloem. 2008. Forecasting effects of sea-level rise and windstorms on coastal and inland ecosystems. Frontiers in Ecology and the Environment 6 (5): 255–263. https://doi.org/10.1890/070153.
Hurd, L.E., G.W. Smedes, and T.A. Dean. 1979. An ecological study of a natural population of diamondback terrapins (Malaclemys t. terrapin) in a Delaware salt marsh. Estuaries 2 (1): 28–33. https://doi.org/10.2307/1352036.
Jeffers, V.F., and B.J. Godley. 2016. Satellite tracking in sea turtles: how do we find our way to the conservation dividends? Biological Conservation 199: 172–184. https://doi.org/10.1016/j.biocon.2016.04.032.
Jonsen, I.D., J.M. Flemming, and R.A. Myers. 2005. Robust state–space modeling of animal movement data. Ecology 86 (11): 2874–2880.
Kalman, R.E. 1960. A new approach to linear filtering and prediction problems. Journal of Basic Engineering 82 (1): 35–45.
Lamont, M.M., I. Fujisaki, B.S. Stephens, and C. Hackett. 2015. Home range and habitat use of juvenile green turtles (Chelonia mydas) in the northern Gulf of Mexico. Animal Biotelemetry 3. BioMed Central: 53. https://doi.org/10.1186/s40317-015-0089-9.
Lawson, D.P. 2006. Habitat use, home range, and activity patterns of hingeback tortoises, Kinixys erosa and K. homeana, in southwestern Cameroon. Chelonian Conservation and Biology 5 (1): 48–56.
Lewis, M.A., D.D. Dantin, C.A. Chancy, K.C. Abel, and C.G. Lewis. 2008. Florida seagrass habitat evaluation: a comparative survey for chemical quality. Environmental Pollution 146 (1): 206–218. https://doi.org/10.1016/j.envpol.2006.04.041.
Lue, K., and T. Chen. 1999. Activity, movement patterns, and home range of the yellow-margined box turtle (Cuora flavomarginata) in Northern Taiwan. Journal of Herpetology 33 (4): 590–600.
Luiselli, L., G.C. Akami, O. Belio, F.M. Angelici, and L. Ude. 2006. Home range area may vary considerably in relation to habitat contamination in two African terrapins from pristine and oil polluted habitats. Amphibia-Reptilia 27: 255–261.
Lyons, M.P., B. von Holle, M.A. Caffrey, and J.F. Weishampel. 2020. Quantifying the impacts of future sea level rise on nesting sea turtles in the southeastern United States. Ecological Applications: 30. https://doi.org/10.1002/eap.2100.
Özgül, A., A. Lök, T.T. Tanrıkul, and J. Alós. 2019. Home range and residency of Scorpaena porcus and Scorpaena scrofa in artificial reefs revealed by fine-scale acoustic tracking. Fisheries Research 210: 22–30. https://doi.org/10.1016/j.fishres.2018.10.008.
Paden, L.M., and K. Andrews. 2020. Modification and validation of low-cost recreational GPS loggers for tortoises. Wildlife Society Bulletin: 1–9. https://doi.org/10.1002/wsb.1126.
Pearson, S.H., and J.J. Wiebe. 2018. Considering diamond-backed terrapin (Malaclemys terrapin) nesting habitat and reproductive productivity in the restoration of Gulf of Mexico coastal ecosystems. Ocean and Coastal Management 155: 8–14. https://doi.org/10.1016/j.ocecoaman.2018.01.017.
R Development Core Team. 2019. R: a language and environment for statistical computing. Vienna: R Foundation for Statistical Computing www.r-project.org.
Roosenburg, W.M. 1994. Nesting habitat requirements of the diamondback terrapin: a geographic comparison. Wetland Journal 6: 8–11.
Roosenburg, W.M., K.L. Haley, and S. McGuire. 1999. Habitat selection and movements of diamondback terrapins, Malaclemys terrapin, in a Maryland estuary. Chelonian Conservation and Biology 3: 425–429.
Roosenburg, W.M., D.M. Spontak, S.P. Sullivan, E.L. Matthews, M.L. Heckman, R.J. Trimbath, R.P. Dunn, E.A. Dustman, L. Smith, and L.J. Graham. 2014. Nesting habitat creation enhances recruitment in a predator-free environment: Malaclemys nesting at the Paul S. Sarbanes Ecosystem Restoration Project. Restoration Ecology 22 (6): 815–823. https://doi.org/10.1111/rec.12147.
Roosenburg, W.M., P.J. Baker, R. Burke, M.E. Dorcas, and R.C. Wood. 2019. Malaclemys terrapin, diamondback terrapin. The IUCN Red List of Threatened Species.
Schofield, G., V.J. Hobson, M.K.S. Lilley, K.A. Katselidis, C.M. Bishop, P. Brown, and G.C. Hays. 2010. Inter-annual variability in the home range of breeding turtles: implications for current and future conservation management. Biological Conservation 143. Elsevier Ltd: 722–730. https://doi.org/10.1016/j.biocon.2009.12.011.
Seaman, E.D., and R.A. Powell. 1996. An evaluation of the accuracy of kernel density estimators for home range analysis. Ecology 77 (7): 2075–2085.
Selman, W., and C. Qualls. 2008. The impacts of Hurricane Katrina on a population of yellow-blotched sawbacks (Graptemys flavimaculata) in the Lower Pascagoula River. Herpetological Conservation and Biology 3: 224–230.
Selman, W., B. Baccigalopi, and C. Baccigalopi. 2014. Distribution and abundance of diamondback terrapins (Malaclemys terrapin) in southwestern Louisiana. Chelonian Conservation and Biology 13 (2): 131–139. https://doi.org/10.2744/CCB-1102.1.
Sexton, O.J. 1959. Spatial and temporal movements of a population of the painted turtle, Chrysemys picta marginata (Agassiz). Ecological Monographs 29 (2): 113–140.
Sheridan, C.M. 2010. Mating system and dispersal patterns in the diamondback terrapin (Malaclemys terrapin). Drexel University.
Slavenko, A., Y. Itescu, F. Ihlow, and S. Meiri. 2016. Home is where the shell is: predicting turtle home range sizes. Journal of Animal Ecology 85 (1): 106–114. https://doi.org/10.1111/1365-2656.12446.
Spivey, P.B. 1998. Home range, habitat selection and diet of the diamondback terrapin (Malaclemys terrapin) in a North Carolina estuary. University of Georgia.
Standing, K.L., T.B. Herman, and I.P. Morrison. 1999. Nesting ecology of Blanding’s turtle (Emydoidea blandingii) in Nova Scotia, the northeastern limit of the species’ range. Canadian Journal of Zoology 77 (10): 1609–1614. https://doi.org/10.1139/z99-122.
Szerlag-Egger, S., and S.P. McRobert. 2007. Northern diamondback terrapin occurrence, movement, and nesting activity along a salt marsh access road. Chelonian Conservation and Biology 6 (2): 295–301.
Tinkle, D.W., J.D. Congdon, and P.C. Rosen. 1981. Nesting frequency and success : implications for the demography of painted turtles. Ecology 62 (6): 1426–1432.
Vitousek, S., P.L. Barnard, C.H. Fletcher, N. Frazer, L. Erikson, and C.D. Storlazzi. 2017. Doubling of coastal flooding frequency within decades due to sea-level rise. Scientific Reports 7 (1): 1–9. https://doi.org/10.1038/s41598-017-01362-7.
Winters, J.M., H.W. Avery, E.A. Standora, and J.R. Spotila. 2015. Between the bay and a hard place: altered diamondback terrapin nesting movements demonstrate the effects of coastal barriers upon estuarine wildlife. Journal of Wildlife Management 79 (4): 682–688. https://doi.org/10.1002/jwmg.878.
Witt, M.J., S. Åkesson, A.C. Broderick, M.S. Coyne, J. Ellick, A. Formia, G.C. Hays, P. Luschi, S. Stroud, and B.J. Godley. 2010. Assessing accuracy and utility of satellite-tracking data using Argos-linked Fastloc-GPS. Animal Behaviour 80 (3): 571–581.
Woodland, R.J., C.L. Rowe, and P.F.P. Henry. 2017. Changes in habitat availability for multiple life stages of diamondback terrapins (Malaclemys terrapin) in Chesapeake Bay in response to sea level rise. Estuaries and Coasts 40: 1502–1515. https://doi.org/10.1007/s12237-017-0209-2.
We thank biologists (Kathy Gault, Carrie Gindl, David Seay) at Eglin Air Force Base and the Natural Resources Department (Bruce Hagedorn, Justin Johnson) for logistical support.
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. This draft manuscript is distributed solely for purposes of scientific peer review. Its content is deliberative and pre-decisional, so it must not be disclosed or released by reviewers. Because the manuscript has not yet been approved for publication by the U.S. Geological Survey (USGS), it does not represent any official USGS finding or policy.
This project was funded by the USGS and was conducted under State of Florida Special Use Permit #33447. All turtle handling and sampling was performed according to the Institutional Animal Care Protocol USGS/WARC/GNV 2019-15 and USGS/WARC/GNV 2018-04.
Communicated by Kevin M. Boswell
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Lamont, M.M., Johnson, D. & Catizone, D.J. Home ranges and Movements of Two Diamondback Terrapins (Malaclemys terrapin macrospilota) in Northwest Florida. Estuaries and Coasts (2021). https://doi.org/10.1007/s12237-020-00892-0
- Gulf of Mexico
- Satellite telemetry