faculty portrait if available
John Carr
Professor
School of Sciences
GARR 211
318-342-1796
ULM logo

John L Carr, PhD
Professor, Biology

Education

Ph D

1991, Zoology
Southern Illinois University

MS

1981, Wildlife & Fisheries Sciences
Texas A&M University

BS

1979, Zoology
Texas A&M University

faculty feature photo

Biographical Sketch

Beginning in 1989, John Carr worked as a staff biologist and writer at Conservation International in the nation’s capital, including work with RAP (Rapid Assessment Program) in the tropical Andean region of South America. On the faculty at ULM since 1996, he serves as Professor of Biology, teaching human and comparative anatomy, as well as field biology and herpetology. He serves as Curator in the Museum of Natural History for Zoology. Since 2011, he has held the Kitty DeGree Professorship in Biology that helps fund research activities.

His core interests include anatomy, systematics, and ecology and conservation of freshwater and terrestrial turtles in the United States and Latin America. Current work centers on distribution and ecology of amphibians and reptiles of the Mississippi Alluvial Plain and West Gulf Coastal Plain in Louisiana, Arkansas, and Texas. Would-be graduate students from across the US apply to work with him on these topics, so far resulting in the completion of 21 M.S. theses. Softshell, map, and alligator snapping turtle studies are among these.

Ongoing work also includes study of evolutionary relationships and taxonomy of a tropical American group of terrestrial and freshwater turtles (genus Rhinoclemmys)—a decades long effort. Since 2005, Carr has made near-annual visits to Colombia to work with international colleagues on the ecology of Rhinoclemmys and other turtles. He serves as an International Research Associate in the Animal Ecology Research Group (Grupo de Investigación en Ecología Animal) of the Department of Biology in the Universidad del Valle in Cali.

Carr was invited to coauthor a field guide, The Turtles and Crocodilians of the Tropical Andean Countries (Las Tortugas y Cocodrilianos de los Paises Andinos del Trópico), which appeared in 2007. He contributed to this book as a capacity-building tool and aid for students and young biologists in the region from Venezuela to Bolivia. His collaboration with Jeff Boundy to author Amphibians and Reptiles of Louisiana (2017), an identification guide, will be a valuable resource for students and naturalists in the state.

Publications by professor Carr number 60-plus in journals such as Biological Conservation, Chelonian Conservation and Biology, Zootaxa, Southwestern Naturalist, and Tropical Conservation Science. He regularly attends professional meetings with students—opportunities for them to showcase their work and develop communication skills.

Beginning in the 1980’s, Carr’s research activities have taken him to sites on five continents, including 14 times to Brazil, Colombia, and Ecuador since 2005. He has long been a member of the Freshwater Turtle and Tortoise Specialist Group, a component of the oldest and largest global environmental network, the Species Survival Commission of IUCN (International Union for the Conservation of Nature).

Research Interests

  • morphology and systematics of turtles
  • ecology and conservation of turtles
  • distribution and ecology of Louisiana amphibians and reptiles

Recent Publications

Garcés-Restrepo, M. F., Rivera-Domínguez, N., Giraldo, A., Carr, J. L. (2017). Reproductive aspects of the Chocoan River Turtle (Rhinoclemmys nasuta, Geoemydidae) along the Colombian Pacific coast (pp. 351-361). Amphibia-Reptilia.
Forero-Medina, G., Iverson, J. B., Carr, J., Castaño-Mora, O. V., Galvis-Rizo, C. A., Rentería-Moreno, L. E. (2016 [2015]). Kinosternon dunni (Schmidt, 1947). In: Libro Rojo de Reptiles de Colombia (2015) (pp. 180-182). Bogotá: Instituto de Investigación de Recursos Biológicos Alexander von Humboldt (IAvH) & Universidad de Antioquia.
Boundy, J., Carr, J. L. (2017). Amphibians and Reptiles of Louisiana: An Identification and Reference Guide. Baton Rouge, LA: LSU Press.
Battaglia, C. D., Faidley, C. R., Hudson, A. N., Brown, M. D., Pardue, T. M., Reid, M. L., Bass, A. A., Townsend, C. L., Carr, J. L. (2015). Distribution records for Louisiana amphibians and reptiles (pp. 579-581). Herpetological Review.
Forero-Medina, G., Páez, V., Garcés-Restrepo, M. F., Carr, J. L., Giraldo, A., Vargas-Ramírez, M. (2016). Research and conservation priorities for tortoises and freshwater turtles of Colombia (pp. 1-14). Tropical Conservation Science.
Carr, J. L., Giraldo, A., Garcés-Restrepo, M. F. (2017). Rhinoclemmys nasuta (pp. 43-49). Medellín, Antioquia: Catálogo de Anfibios y Reptiles de Colombia.
Carr, J. L., Almendáriz, A., Simmons, J. E., Nielsen, M. T. (2014). Subsistence hunting for turtles in northwestern Ecuador (pp. 401-413). Bogotá: Acta Biológica Colombiana.
Garcés-Restrepo, M. F., Giraldo, A., Carr, J. L. (2014). Variación demográfica temporal de Rhinoclemmys nasuta (Geoemydidae) en Isla Palma, Bahía Málaga, Pacífico del Valle del Cauca (pp. 489-497). Bogotá: Acta Biológica Colombiana.
Giraldo, A., Garcés-Restrepo, M. F., Bolívar-G., W., Carr, J. L. (2013). First report of hatching of the Chocoan River Turtle Rhinoclemmys nasuta (Boulenger 1902) (Testudines: Geoemydidae) (pp. 154-159). Boletín Científico, Museo de Historia Natural, Universidad de Caldas.
Garcés-Restrepo, M. F., Giraldo, A., Carr, J. L. (2013). Population ecology and morphometric variation of the Chocoan River Turtle (Rhinoclemmys nasuta) from two localities on the Colombian Pacific coast (pp. 160-171). Boletín Científico, Museo de Historia Natural, Universidad de Caldas.
Reid, M. L., Battaglia, C. D., Rice, C. L., Carr, J. L. (2014). Colonization of northern Louisiana by the Mediterranean Gecko, Hemidactylus turcicus (pp. 93-97). Journal of North American Herpetology.
Carr, J. L., Messinger, M. A., Patton, G. M. (2008). Nesting behavior in Three-toed Box Turtles (Terrapene carolina triunguis) following oxytocin-induced oviposition (pp. 124-128). Chelonian Conservation and Biology.
Carr, J. L. (2008). Terrestrial foraging by two species of semiaquatic turtles (Testudines: Emydidae) (pp. 748-752). Southeastern Naturalist.
Rhodin, A. G., Carr, J. L. (2009). A quarter millenium of uses and misuses of the turtle name Testudo scabra: Identification of the type specimens of T. scabra Linnaeus 1758 (= Rhinoclemmys punctularia) and T. scripta Thunberg in Schoepff 1792 (= Trachemys scripta scripta) (pp. 1-18). Zootaxa.
Carr, J. L., Giraldo, A. (2009). Rhinoclemmys nasuta (Boulenger 1902) – Large-Nosed Wood Turtle, Chocoan River Turtle (pp. 1-6). Lunenberg, MA: Chelonian Research Monographs.
Patton, G. M., Messinger, M. A., Carr, J. L. (2009). Terrapene carolina triunguis (Three-toed Box Turtle). Anomalous scutation (pp. 437). Herpetological Review.
Quintero-Angel, A., Carr, J. L. (2010). Lepidoblepharis xanthostigma (Orange-tailed Gecko). Predation (pp. 80). Herpetological Review.
Carr, J. L., Garcés, M. F., Quintero-Angel, A., Giraldo, A. (2010). Rhinoclemmys nasuta (Chocoan River Turtle). Diet and Feeding Behavior (pp. 347-348). Herpetological Review.
Carr, J. L., Holcomb, S. R., Ray, M. J. (2011). Basking in the Alligator Snapping Turtle, Macrochelys temminckii (Testudines: Chelydridae) (pp. 2-5). San Jose, CA: Reptiles and Amphibians, Conservation and Natural History.
Holcomb, S. R., Carr, J. L. (2011). Infestation of a naturally incubated nest of the Alligator Snapping Turtle (Macrochelys temminckii) by the phorid fly Megaselia scalaris (pp. 427-429). Southwestern Naturalist.
Shively, S., Brown, J., Carr, J. L. (2011). Sternotherus carinatus (Razor-backed Musk Turtle). Predation (pp. 423). Herpetological Review.
Holcomb, S. R., Carr, J. L. (2011). Hatchling emergence from naturally incubated Alligator Snapping Turtle (Macrochelys temminckii) nests in northern Louisiana (pp. 222-227). Lunenberg, MA: Chelonian Conservation and Biology.
Steen, D. A., Gibbs, J. P., Buhlmann, K. A., Carr, J. L., Compton, B. W., Congdon, J. D., Doody, J. S., Godwin, J. C., Holcomb, K. L., Jackson, D. R., Janzen, F. J., Johnson, G., Jones, M. T., Lamer, G., Langen, T. A., Plummer, M. V., Rowe, J. W., Saumure, R. A., Tucker, J. K., Wilson, D. S. (2012). Terrestrial habitat requirements of nesting freshwater turtles (pp. 121-128). Biological Conservation.
Giraldo, A., Garcés, M. F., Carr, J. L., Loaiza, J. (2012). Tamaño y estructura poblacional de la tortuga sabaletera (Rhinoclemmys nasuta, Testudines: Geoemydidae) en un ambiente insular del Pacífico colombiano (pp. 109-125). Bogotá, D.C.: Caldasia.
Almendáriz C., A., Carr, J. L. (2012). Lista actualizada de los anfibios y reptiles registrados en los remanentes de bosque de la Cordillera de la Costa y áreas adyacentes del suroeste del Ecuador (pp. 184-194). Quito: Revista Politécnica.
Carr, J. L., Giraldo, A., Garcés-Restrepo, M. F. (2012). Rhinoclemmys nasuta (Boulenger 1902) (pp. 315-322). Bogotá, D.C.: Instituto de Investigación de los Recursos Biológicos Alexander von Humboldt (IAvH).
Echeverri-García, L. P., Carr, J. L., Garcés-Restrepo, M. F., Galvis-Rizo, C. A., Giraldo, A. (2012). Rhinoclemmys melanosterna (Gray, 1861) (pp. 308-314). Bogotá, D.C.: Instituto de Investigación de los Recursos Biológicos Alexander von Humboldt (IAvH).
Giraldo, A., Carr, J. L., Garcés-Restrepo, M. F. (2012). Rhinoclemmys annulata (Gray 1860) (pp. 300-304). Bogotá, D.C.: Instituto de Investigación de los Recursos Biológicos Alexander von Humboldt (IAvH).
Giraldo, A., Garcés-Restrepo, M. F., Carr, J. L. (2012). Kinosternon leucostomum (Duméril y Bibron en Duméril y Duméril 1851) (pp. 332-339). Bogotá, D.C.: Instituto de Investigación de los Recursos Biológicos Alexander von Humboldt (IAvH).
Forero-Medina, G., Iverson, J. B., Carr, J. L., Castaño-Mora, O. V., Galvis-Rizo, C. A., Rentería-Moreno, L. E. (2012). Kinosternon dunni (Schmidt 1947) (pp. 327-331). Bogotá, D.C.: Instituto de Investigación de los Recursos Biológicos Alexander von Humboldt (IAvH).
Carr, J. L. (2012). Caracteres Morfológicos para Estudios de Taxonomía y Sistemática de Tortugas (pp. 103-113). Bogotá, D.C.: Instituto de Investigación de los Recursos Biológicos Alexander von Humboldt (IAvH).
Rentería-Moreno, L. E., Forero-Medina, G., Garcés-Restrepo, M. F., Carr, J. L., Rueda-Almonacid, J. V. (2012). Range extension of Kinosternon dunni Schmidt, 1947 (Reptilia, Testudines, Kinosternidae) in Chocó, Colombia (pp. 1310-1312). Check List.
Iverson, J. B., Carr, J. L., Castaño-Mora, O. V., Galvis-Rizo, C. A., Rentería-Moreno, L. E., Forero-Medina, G. (2012). Kinosternon dunni (Schmidt 1947) - Dunn's Mud Turtle, Cabeza de Trozo (pp. 1-5). Lunenberg, MA: Chelonian Research Monographs.
Garcés-Restrepo, M. F., Giraldo, A., Carr, J. L., Brown, L. D. (2013). Turtle ectoparasites from the Pacific coastal region of Colombia (pp. 74-79). Biota Neotropica.
Vargas-Ramírez, M., Carr, J. L., Fritz, U. (2013). Complex phylogeography in Rhinoclemmys melanosterna: conflicting mitochondrial and nuclear evidence suggests past hybridization (Testudines: Geoemydidae) (pp. 238-254). Zootaxa.
Giraldo, A., Garcés-Restrepo, M. F., Carr, J. L. (2013). Rhinoclemmys annulata (pp. 31-34). Catálogo de Anfibios y Reptiles de Colombia.
Giraldo, A., Garcés-Restrepo, M. F., Carr, J. L. (2013). Kinosternon leucostomum (pp. 45-49). Catálogo de Anfibios y Reptiles de Colombia.
Holcomb, S. R., Carr, J. L. (2013). Mammalian depredation of artificial Alligator Snapping Turtle (Macrochelys temminckii Troost) nests in North Louisiana (pp. 478-491). Southeastern Naturalist.

Research Grants

Morrone, S. (Co-Principal), Carr, J. L. (Co-Principal), "Biologging the Hidden Life of the Chocoan River Turtle in Colombia" (Funded), Sponsored By Experiment.com, External to The University of Louisiana at Monroe, $5,425. (May 18 2015 - Present).
Carr, J. L. (Principal), "Freshwater Turtle Inventory of the North Louisiana Refuges Complex" (Funded), Sponsored By U.S. Fish and Wildlife Service, External to The University of Louisiana at Monroe, $27650. (August 14 2017 - August 13 2019).
Carr, J. L. (Principal), "Status of the Western Chicken Turtle in Louisiana" (Not Funded), Sponsored By Louisiana Department of Wildlife and Fisheries, External to The University of Louisiana at Monroe, $96699. (October 1 2016 - September 30 2018).
Carr, J. L. (Principal), "Distribution and Abundance of Map Turtles (Graptemys) in the Red and Ouachita River Drainages of Northern Louisiana" (Funded), Sponsored By Louisiana Department of Wildlife and Fisheries, External to The University of Louisiana at Monroe, $76805. (September 01 2015 - August 31 2018).
Carr, J. L., Sasek, T., "Compaction, Digitization, and Curation of Collections in the ULM Museum of Natural History" (Not Funded), Sponsored By National Science Foundation, External to The University of Louisiana at Monroe, $439,663. (April 1 2016 - March 31 2018).
Carr, J. L. (Co-Principal), Sasek, T. (Co-Principal), "Mobilizing Museum Collections Data into the Biology Curriculum and Beyond" (Funded), Sponsored By ULM Academic Innovation Center, The University of Louisiana at Monroe, $2,000. (March 20 2017 - June 30 2017).
Carr, J. L. (Principal), "Louisiana portion: Recovery of the Alligator Snapping Turtle (Macrochelys temminckii) in the Mississippi River Valley drainages of southern Illinois, Oklahoma, and Louisiana; extension" (Funded), Sponsored By U.S. Fish and Wildlife Service, External to The University of Louisiana at Monroe, $32078.14. (October 1 2016 - June 30 2017).
Carr, J. L. (Principal), Giraldo, A. (Co-Principal), "Biologging to Study Behavior of a Colombian Population of the Chocoan River Turtle, Rhinoclemmys nasuta" (Not Funded), Sponsored By Andrew Sabin Family Foundation Turtle Grants, External to The University of Louisiana at Monroe, $4,500. (January 1 2015 - December 31 2016).
Carr, J. L. (Principal), "Louisiana portion: Recovery of the Alligator Snapping Turtle (Macrochelys temminckii) in the Mississippi River Valley drainages of southern Illinois, Oklahoma, and Louisiana" (Funded), Sponsored By U.S. Fish and Wildlife Service, External to The University of Louisiana at Monroe, $121748. (October 1 2013 - September 30 2016).
Carr, J. L. (Principal), "Inland and Coastal Fishes of Louisiana" (Not Funded), Sponsored By Louisiana Department of Wildlife and Fisheries, Baton Rouge, LA., External to The University of Louisiana at Monroe, $1473161. (May 16 2011 - May 15 2016).
Carr, J. L. (Principal), Sasek, T. (Co-Principal), "Compaction, Digitization, and Curation of Collections in the ULM Museum of Natural History" (Not Funded), Sponsored By National Science Foundation, External to The University of Louisiana at Monroe, $495,742. (March 1 2014 - February 28 2016).
Carr, J. L. (Principal), "Status of the Alligator Snapping Turtle in Central Louisiana based on Trapping Data" (Funded), Sponsored By Louisiana Department of Wildlife and Fisheries, External to The University of Louisiana at Monroe, $27300. (October 1 2013 - September 30 2015).
Carr, J. L. (Principal), Morrone, S. (Co-Principal), "Biologging to Study Behavior of the Colombian Population of the Chocoan River Turtle" (Funded), Sponsored By College of Arts, Education, and Sciences; Research Hub Tier 2, The University of Louisiana at Monroe, $600. (December 2014 - September 2015).
Carr, J. L. (Principal), "Alligator Snapping Turtle Nest Surveys" (Funded), Sponsored By Friends of Black Bayou, External to The University of Louisiana at Monroe, $1500. (May 2014 - October 2014).
Carr, J. L. (Principal), "Aquatic Herpetofaunal Surveys at Boeuf WMA" (Funded), Sponsored By Louisiana Department of Wildlife and Fisheries, Baton Rouge, LA., External to The University of Louisiana at Monroe, $39172. (January 1 2012 - June 30 2014).
Carr, J. L. (Principal), "Alligator Snapping Turtle Nest Surveys" (Funded), Sponsored By Friends of Black Bayou, External to The University of Louisiana at Monroe, $1500. (April 2013 - October 2013).
Carr, J. L. (Principal), "Herpetofaunal Survey of the Mollicy Farm Wetland Restoration Site, Upper Ouachita National Wildlife Refuge" (Funded), Sponsored By The Nature Conservancy, External to The University of Louisiana at Monroe, $51150. (April 28 2009 - January 31 2013).
Carr, J. L. (Principal), "Alligator Snapping Turtle Nest Surveys" (Funded), Sponsored By Friends of Black Bayou, External to The University of Louisiana at Monroe, $1500. (April 2012 - October 2012).
Carr, J. L. (Principal), "Digitization and Curation of the Fluid-preserved Collections in the ULM Museum of Natural History" (Not Funded), Sponsored By National Science Foundation, Institute of Museum and Library Services, External to The University of Louisiana at Monroe, $247044. (April 1 2010 - September 30 2012).
Carr, J. L. (Principal), "Taxonomy and Systematics of the Neotropical Turtle Genus Rhinoclemmys" (Funded), Sponsored By Dean's Research and Creative Project Fund, The University of Louisiana at Monroe, $1052. (December 1 2009 - June 30 2010).
Carr, J. L. (Principal), "Systematics of Rhinoclemmys melanosterna in northwestern South America" (Awarded, Not Yet Funded), Sponsored By Dean's Research and Creative Project Fund, The University of Louisiana at Monroe, $1850. (December 1 2008 - June 30 2009).

Awards & Honors

April 2013 Award for Excellence in Research, College of Arts & Sciences - 2012-2013.

Courses Taught

BIOL 1022PRINCIPLES OF BIOLOGY II, 1 course(s)

BIOL 1023PRINCIPLES BIOLOGY II LAB, 4 course(s)

BIOL 2040HUMAN ANATOMY, 11 course(s)

BIOL 2041HUMAN ANATOMY LABORATORY, 20 course(s)

BIOL 3016COMPARATIVE ANATOMY, 11 course(s)

BIOL 4051FIELD BIOLOGY, 2 course(s)

BIOL 4080HERPETOLOGY, 5 course(s)

BIOL 4099Sr Biology Seminar, 1 course(s)

BIOL 5005RESEARCH METHODS, 1 course(s)

BIOL 5006RESEARCH METHODS LABORATORY, 1 course(s)

BIOL 5026ADVANCED HERPETOLOGY, 2 course(s)

BIOL 5093Special Topic - Zoology, 1 course(s)

BIOL 5094SPECIAL TOPICS: ZOOLOGY, 1 course(s)