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Pearl River map turtle

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(Redirected from Graptemys pearlensis) Species of turtle

Pearl River map turtle
Conservation status

Endangered  (IUCN 3.1)
CITES Appendix II (CITES)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Testudines
Suborder: Cryptodira
Superfamily: Testudinoidea
Family: Emydidae
Genus: Graptemys
Species: G. pearlensis
Binomial name
Graptemys pearlensis
Ennen et al., 2010
Combined range map of Pearl River map turtle (western blue section) and Pascagoula map turtle (eastern blue section)

The Pearl River map turtle (Graptemys pearlensis) is a species of emydid turtle native to the southern United States. According to a study done in January 2017, the species G. pearlensis was significantly less abundant in the Pearl River region as compared to G. oculifera and exhibited a smaller number of reproductively mature females. Further, this study highlighted statistical and observational evidence that this species exhibited female-biased, sexual dimorphism.

Geographic range

It is endemic to the Pearl River in Louisiana and Mississippi. The ringed map turtle (G. oculifera) is also endemic to the Pearl River.

Taxonomy

Until 2010, it was included in the Pascagoula map turtle (G. gibbonsi), which it resembles. In 2010 Ennen and his colleagues described Graptemys pearlensis as a new species. They used sequence variation of the mitochondrial control region along with the ND4 gene and found out three samples of Graptemys pearlensis constituting reciprocally monophyletic sister clades.

Conservation

In 2024, the Pearl River map turtle was listed as a threatened species under the Endangered Species Act of 1973. Basking survey data suggest that fewer than 22,000 individuals existed in the wild in 2020, with low or moderate resiliency estimates in all portions of the turtle's range. The U.S. Fish and Wildlife Service (USFWS) assessed that the Pearl River map turtle is threatened by habitat loss and degradation, take for collection and climate change. The construction of the Ross Barnett Reservoir between 1960 and 1963 rendered a portion of the Pearl River unsuitable for occupancy by the lotic species. On the basis of similarity of appearance to Graptemys pearlensis, the USFWS also listed the macrocephalic Graptemys species G. pulchra, G. barbouri, G. ernsti and G. gibbonsi as threatened.

References

  1. van Dijk, P.P. (2016) . "Graptemys pearlensis". IUCN Red List of Threatened Species. 2011: e.T184437A97423604. Retrieved 24 December 2017.
  2. "Appendices | CITES". cites.org. Retrieved 2023-03-01.
  3. ^ Ennen, Joshua R.; Lovich, Jeffrey E.; Kreiser, Brian R.; Selman, W.; Qualls, Carl P. (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. doi:10.2744/CCB-0835.1. S2CID 49358338.
  4. Selman, Will; Jones, Robert L. (January 2017). "Population structure, status, and conservation of two Graptemys species from the Pearl River, Mississippi". Journal of Herpetology. 51 (1): 27–36. doi:10.1670/15-082. ISSN 0022-1511. S2CID 89108416.
  5. Praschag, Peter; Ihlow, Flora; Flecks, Morris; Vamberger, Melita; Fritz, Uwe (2017). "Diversity of North American map and sawback turtles (Testudines: Emydidae: Graptemys)". Zoologica Scripta. 46 (6): 675–682. doi:10.1111/zsc.12249. S2CID 89635583.
  6. ^ Fish and Wildlife Species Assessment Team; Mississippi Ecological Services Field Office (12 July 2024). "Endangered and Threatened Wildlife and Plants; Threatened Species Status for Pearl River Map Turtle With Section 4(d) Rule; and Threatened Species Status for Alabama Map Turtle, Barbour's Map Turtle, Escambia Map Turtle, and Pascagoula Map Turtle Due to Similarity of Appearance with Section 4(d) Rule". Federal Register. 89 (134): 57206–57236. 89 FR 57206

External links

Emydidae family
Genera
Species of the Emydidae family
Northern red-bellied cooter(Pseudemys rubriventris)
Chrysemys
Clemmys
Deirochelys
Actinemys
Emys
Emydoidea
Glyptemys
Graptemys
Malaclemys
Pseudemys
Terrapene
Trachemys
Wilburemys
Phylogenetic arrangement of turtles based on turtles of the world 2017 update: Annotated checklist and atlas of taxonomy, synonymy, distribution, and conservation status. Key: †=extinct.
Testudines
Suborder
Superfamily
Family
Genus
Cryptodira
Chelonioidea
(Sea turtles)
Cheloniidae
Dermochelyidae
 
Kinosternoidea
Dermatemydidae
Kinosternidae
Testudinoidea
Emydidae
Geoemydidae
 Platysternidae
Testudinidae
Trionychia
Carettochelyidae
Trionychidae
 
 
Chelydridae
Nanhsiungchelyidae
Protostegidae
 
Pleurodira
 
Araripemydidae
Bothremydidae
Chelidae
Pelomedusidae
Podocnemididae
Sahonachelyidae
 
 
 
Taxon identifiers
Graptemys pearlensis
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