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Graptemys ernsti LOVICH & MCCOY, 1992

IUCN Red List - Graptemys ernsti - Near Threatened, NT
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Higher TaxaEmydidae, Deirochelyinae, Testudinoidea, Testudines (turtles)
Subspecies 
Common NamesE: Escambia Map Turtle 
SynonymGraptemys ernsti LOVICH & MCCOY 1992
Graptemys ernsti — CROTHER 2000
Graptemys ernsti — REYNOLDS et al. 2007
Graptemys ernsti — TTWG 2021 
DistributionUSA (Florida, Alabama)

Type locality: “Conecuh River, 1 mile upstream from County Road 4 Bridge, 14 km east of East Brewton, Escambia County, Alabama, USA.”  
Reproductionoviparous. 
TypesHolotype: CM 122408. Paratypes: CM 122403–07, 122409–11. Paratypes: USNM. 
Diagnosis 
CommentSynonymy: Praschag et al. 2017 found that G. ernsti, G. gibbonsi, G. pearlensis and G. pulchra are nearly identical genetically and, thus, likely conspecific.


Diet: carnivore.

Habitat: freshwater (lakes, rivers) 
EtymologyThe name ernsti is a patronym honoring North American herpetologist, Dr. Carl H. Ernst (1938-2018), for his contributions to the study of turtles. Ernst was a former supervisor of Jeffrey Lovich. See Anonymous 2019 for an obituary. 
References
  • Anonymous 2019. Dr. Carl H. Ernst 1938-2018. Catesbeiana 39 (1): 26-27 - get paper here
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Bour, R. 2008. Global diversity of turtles (Chelonii; Reptilia) in freshwater. Hydrobiologia 595:593–598 - get paper here
  • Buhlmann, Kurt; Tracey Tuberville & Whit Gibbons 2008. TURTLES OF THE SOUTHEAST. University of Georgia Press, Athens, iv + 264 pp.
  • Crother, B. I. (ed.) 2012. Standard Common and Current Scientific Names for North American Amphibians, Turtles, Reptiles, and Crocodilians, Seventh Edition. Herpetological Circular 39: 1-92
  • Ennen, Joshua R.; James Godwin, Jeffrey E. Lovich, Brian R. Kreiser, Brian Folt, and Sarah Hazzard 2016. Interdrainage Morphological and Genetic Differentiation in the Escambia Map Turtle, Graptemys ernsti. Herp. Cons. Biol. 11 (1) - get paper here
  • Ennen, Joshua R.; Jeffrey E. Lovich, Brian R. Kreiser, W. Selman, Carl P. Qualls 2010. Genetic and Morphological Variation Between Populations of the Pascagoula Map Turtle (Graptemys gibbonsi) in the Pearl and Pascagoula Rivers with Description of a New Species. Chelonian Conservation and Biology. 9 (1): 98–113 - get paper here
  • Ernst, Carl H.; Lovich, Jeffrey E. 2009. Turtles of the United States and Canada, 2nd edition. Johns Hopkins University Press, 827 pp. - get paper here
  • Godwin, James C.; Jeffrey E. Lovich, Joshua R. Ennen, Brian R. Kreiser, Brian Folt, and Chris Lechowicz 2014. Hybridization of Two Megacephalic Map Turtles (Testudines: Emydidae: Graptemys) in the Choctawhatchee River Drainage of Alabama and Florida. Copeia Dec 2014, Vol. 2014, No. 4: 725-742. - get paper here
  • Kirkpatrick, David 1993. Map turtles of the United States. Reptile & Amphibian magazine (November/December): 7-17
  • Lechowicz, Christopher. 2008. Tour d'horizon de l'histoire naturelle, la taxonomie, la préservation et les problémes actuels des tortues géographiques du genre Graptemys (Agassiz, 1857). Chéloniens 11:30-45
  • Lovich J E; McCoy C J 1994. Graptemys ernsti Lovich and McCoy, Escambia map turtle. Catalogue of American Amphibians and Reptiles 585: 1-2 - get paper here
  • Lovich, J.E. & McCoy,C.J. 1992. Review of the Graptemys pulchra group (Reptilia: Testudines: Emydidae), with descriptions of two new species. Annals of the Carnegie Museum 61 (4): 293-315 - get paper here
  • McCoy C J; Vogt R C 1994. Graptemys Agassiz, map turtles. Catalogue of American Amphibians and Reptiles 584: 1-3 - get paper here
  • Praschag P, Ihlow F, Flecks M, Vamberger M, Fritz U. 2017. Diversity of North American map and sawback turtles (Testudines: Emydidae: Graptemys). Zoologica Scripta 46: 675– 682 - get paper here
  • Praschag, Reiner 2023. Auf Graptemys-Suche in den USA. Elaphe 2023 (5): 24-37
  • Praschag, Reiner 2023. Sägerücken- und Höckerschildkröten der Gattung Graptemys – eine artenreiche Gattung der Sumpfschildkröten. Elaphe 2023 (5): 12-23
  • Reynolds, Robert P.; Steve W. Gotte, and Carl H. Ernst 2007. Catalog of Type Specimens of Recent Crocodilia and Testudines in the National Museum of Natural History, Smithsonian Institution. Smithsonian Contributions to Zoology 626: 1-49 - get paper here
  • Rogner, M. 2016. Höckerschildkröten – Die Gattung Graptemys. Reptilia 21 (118): 44-50 - get paper here
  • Seidel, Michael E. & Carl H. Ernst 2017. A Systematic Review of the Turtle Family Emydidae. Vertebrate Zoology 67 (1): 1–122 - get paper here
  • Stephens, P.R. & Wiens, J.J. 2003. Ecological diversification and phylogeny of emydid turtles. Biol. J. Linn. Soc. 79: 577-610 - get paper here
  • TTWG; Rhodin, A.G.J., Iverson, J.B., Bour, R., Fritz, U., Georges, A., Shaffer, H.B., and van Dijk, P.P. 2021. Turtles of the World: Annotated Checklist and Atlas of Taxonomy, Synonymy, Distribution, and Conservation Status (9th Ed.). In: Rhodin, A.G.J., Iverson, J.B., van Dijk, P.P., Stanford, C.B., Goode, E.V., Buhlmann, K.A., and Mittermeier, R.A. (Eds.). Chelonian Research Monographs 8:1–472. doi:10.3854/crm.8.checklist.atlas.v9.2021. - get paper here
 
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