Southeastern Naturalist Volume 22, Special Issue 12, 2023

Biology and Conservation of Alligator Snapping Turtles (Macrochelys)

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Front cover
Inside front cover
Board of Editors/indicia page
Dedication	i
General Acknowledgments	ii
*Introduction*
Introduction: Biology and Conservation of Alligator Snapping Turtles (Macrochelys) John L. Carr, Ethan J. Kessler, and Gerald R. Johnston	iv
*Conservation*
*Population Structure and Genetic Differentiation in Extant Alligator Snapping Turtles (genus Macrochelys) with Implications for Taxonomy and Conservation* J.J. Apodaca , Alexander R. Krohn, Louisa Collins, James C. Godwin, Luke Pearson, and Andrew D. Walde	1
*Anthropogenic Threats to Alligator Snapping Turtles (Chelydridae: Macrochelys)* Amy K. Shook, Charles D. Battaglia, Kevin M. Enge, Carl J. Franklin, James C. Godwin, Aaron C. Johnson, Ethan J. Kessler, Eric Munscher, Kelly Norrid, Luke Pearson, Viviana Ricardez, Dirk J. Stevenson, Travis M. Thomas, and John L. Carr	25
A Standardized Field Method and Habitat Suitability Model to Assess Reintroduction Sites for Alligator Snapping Turtles Kameron C. Voves, Samantha L. Hannabass, Denise M. Thompson, and Day B. Ligon	56
*Distribution*
Observations of the Suwannee Alligator Snapping Turtle from the Okefenokee Swamp Benjamin S. Stegenga, Dirk J. Stevenson, and Houston C. Chandler	78
*Distribution and Relative Abundance of Macrochelys* (Alligator Snapping Turtles) in the Florida Panhandle** Kevin M. Enge, Jonathan D. Mays, Travis M. Thomas, E. Pierson Hill, E. Tucker Stonecypher, and Matthew T. Fedler	84
*New Location Records for Alligator Snapping Turtle (Macrochelys temminckii) Captured During Fishery Surveys in Alabama* Steven J. Rider, Travis R. Powell, and Gregory T. Miles Jr.	100
*Distribution and Status of the Alligator Snapping Turtle (Macrochelys temminckii) in Alabama* James C. Godwin, Andrew Coleman, and Craig Guyer	109
Big Turtles Start Small: Trapping Juvenile Alligator Snapping Turtles in South Mississippi and Implications for Conservation Grover J. Brown	126
*Distribution Patterns and Factors Influencing Relative Abundance of the Alligator Snapping Turtle (Macrochelys temminckii) in Mississippi* Luke Pearson, Lucas Haralson, Gabrielle Berry, Grover J. Brown, and Carl Qualls	138
*Status and Distribution of Alligator Snapping Turtles (Macrochelys temminckii) in Northern Louisiana* Aaron C. Johnson, Amy K. Shook, John L. Carr, and Neil H. Douglas	157
*Using Local Ecological Knowledge to Document Distribution and Temporal Patterns of Macrochelys temminckii* in Texas** Mandi Gordon, David R. Bontrager, Jason E. Watson, Terry Corbett, Carla Crawford, Carl J. Franklin, Bill Kirby, Eric Munscher, Viviana Ricardez, and Arron Tuggle	171
*Distribution and Demography of the Alligator Snapping Turtle (Macrochelys temminckii) in Texas: A 20-Year Perspective* David Rosenbaum, D. Craig Rudolph, Daniel Saenz, Lee A. Fitzgerald, Ryan E. Nelson, Christopher S. Collins, Toby J. Hibbitts, Ricky W. Maxey, Paul Crump, and Christopher M. Schalk	197
*Demography*
*Demography of an Urban Population of Alligator Snapping Turtles (Macrochelys temminckii) in Texas* Eric Munscher, J. Daren Riedle, Arron Tuggle, Jordan Gray, Day Ligon, Valeria Gladkaya, Chris Drake, Ross Couvillon, Jonathon Bolton, Madeleine Morrison, Brian P. Butterfield, and Andrew D. Walde	221
A Temporal Assessment of the Demographic Structure of a Protected Alligator Snapping Turtle Population Aaron C. Johnson, Lori B. White, Samuel R. Holcomb, Mitch J. Ray, and John L. Carr	236
*Determining Sexual Size Dimorphism in an Alligator Snapping Turtle (Macrochelys temminckii) Population in Southwest Georgia: Use of Morphometrics, Ultrasonography, and Testosterone* David C. Rostal, Amber Teare, Philip Marley, and John B. Jensen	250
*Variation in Relative Abundance, Population Structure, and Body Size of the Suwannee Alligator Snapping Turtle (Macrochelys suwanniensis) in the Suwannee River* Travis M. Thomas, Kevin M. Enge, Eric Suarez, Savanna C. Barry, and Steve A. Johnson	264
*Reproduction*
*Nesting Behavior and Ecology in a Captive Population of Alligator Snapping Turtles (Macrochelys temminckii)* Denise M. Thompson and Day B. Ligon	275
*Nest Success of Alligator Snapping Turtles (Macrochelys temminckii) in Louisiana, with Comments on Sources of Mortality* Samuel R. Holcomb and John L. Carr	297
*Nesting Ecology of the Alligator Snapping Turtle (Macrochelys temminckii) Along the Lower Apalachicola River, Florida* Dale R. Jackson, and Michael A. Ewert	311
*Seasonal Reproductive Cycle of Wild Alligator Snapping Turtles (Macrochelys temminckii) in Southwest Georgia* David C. Rostal, Amber Teare, Philip Marley, and John B. Jensen	335
*Diet*
Dietary Niche of Three Omnivorous Turtle Species in a Northern Florida River: Insights from Stable Isotope Analysis Mathew J. Denton, Gerald R. Johnston, Travis M. Thomas, J. Hardin Waddle, Susan C. Walls, and Kristen M. Hart	359
*Behavior*
*Nesting Emergences and Other Terrestrial Movements of Macrochelys* (Testudines: Chelydridae)** John L. Carr, Jen Terry, Day B. Ligon, Kevin M. Enge, Caleb J. Krueger, Travis M. Thomas, Greg Brashear, Gerald R. Johnston, Mandi Gordon, Gina Lloyd, E. Pierson Hill, Dirk J. Stevenson, and David A. Steen	378
Observations of Male Combat in Alligator Snapping Turtles in Florida and Georgia Kevin M. Enge, Travis M. Thomas, Greg Brashear, and Julia Robinson Willmott	388
*Home Range and Habitat Use of Translocated Alligator Snapping Turtles (Macrochelys temminckii) in an Extensive River System* Rebecca A. Cozad, Derek B. Breakfield, and Matthew J. Aresco	393
*Diurnal Observations of Alligator Snapping Turtles (Macrochelys temminckii)* Carl J. Franklin, Viviana Ricardez, Sal Scibetta, David Rosenbaum, and Ben Grizzle	410
*Form and Function*
*Maximum Body Size of the Suwannee Alligator Snapping Turtle (Macrochelys suwanniensis)* Gerald R. Johnston, Jeremy S. Geiger, Travis M. Thomas, Kevin M. Enge, Eric Suarez, and Bryant Davis	418
Condition and Coloration of Lingual Lures of Alligator Snapping Turtles Brad M. Glorioso, John L. Carr, Carl J. Franklin, Mandi Gordon, Aaron C. Johnson, Ethan J. Kessler, Eric Munscher, Luke Pearson, Viviana Ricardez, and Arron Tuggle	429
*Bite-Force Scaling Across Size Classes in the Alligator Snapping Turtle (Macrochelys temminckii) and the Common Snapping Turtle (Chelydra serpentina)* Seth M. LaGrange, Ethan J. Kessler, Zhuang Li, Flavio Morrissiey, and Mark Merchant	440