Yellow-blotched map turtle

From Wikipedia, the free encyclopedia

Yellow-blotched map turtle
Graptemys.flavimaculata.JPG
Conservation status

Vulnerable (IUCN 3.1)[1]
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Testudines
Suborder: Cryptodira
Superfamily: Testudinoidea
Family: Emydidae
Genus: Graptemys
Species:
G. flavimaculata
Binomial name
Graptemys flavimaculata
, 1954
Synonyms
  • Graptemys flavimaculata
    Cagle, 1954
  • Graptemys oculifera flavimaculata — Mertens & , 1955
  • Malaclemys flavomaculata , 1964 (ex errore)
  • Malaclemys flavimaculata
    — Cochran & Goin, 1970[2]
  • Graptemys flavimaculata
    — Conant, 1975[3]

The yellow-blotched map turtle (Graptemys flavimaculata), or yellow-blotched sawback, is a species of turtle in the family Emydidae. It is part of the narrow-headed group of map turtles, and is endemic to the southern United States.

Conservation status[]

This species is listed as threatened under the US Endangered Species Act due to a recent decline. This can be attributed to a low reproductive frequency as compared with most other map turtles. A high level of nest mortality due to fish crow predation and river flooding are also attributed to endangerment. Unexpectedly high occurrences of nesting in shaded areas could possibly be attributed to human disturbances on and near sandbars, which raises mortality rates.[4]

Also, its habitat suffers from pollution and agricultural changes to water levels, affecting nesting beaches. "Turtle plinking", shooting turtles for casual target practice, kills significant portions of this endangered turtle's population each year.[5]

Since yellow-blotched map turtles are freshwater turtles mainly found in the Pascagoula River of Mississippi, human disturbances like an increase in boats in the area of inhabitance, also leads to many physiological issues due to less time to bask or endangerment of the nest.[6]

Geographic range[]

Geographic range

Its distribution is limited to the Pascagoula River of Mississippi and most of its tributaries (a range it shares with the Pascagoula map turtle).

Home range[]

Males have a mean home range area of 1.12 ha (2.77 acres) and a mean home range length of 1.8 km (1.1 mi). Females have a mean home range area of 5.75 ha (14.20 acres), due to nesting activities, and a mean home range length of 1.5 km (0.93 mi).[7]

Description[]

Yellow-blotched map turtles are medium- to small-sized turtles, with males ranging from 3.5 to 4.5 in (9-11.5 cm) in carapace length as adults. Adult females are larger, about 5 to 7.5 in (13–19 cm) in carapace length. The yellow-blotched map turtle has the highest central keel of all map turtles.

Diet[]

Yellow-blotched map turtles feed mostly on insects, but are opportunistic feeders, so also consume crustaceans, fish, and some fresh plant matter.

References[]

  1. ^ van Dijk, P.P. (2011). "Graptemys flavimaculata". The IUCN Red List of Threatened Species. IUCN. 2011: e.T9498A97418378. doi:10.2305/IUCN.UK.2013.RLTS.T9498A12996484.en. Retrieved 24 December 2017.
  2. ^ Fritz, Uwe; Havaš, Peter (2007). "Checklist of Chelonians of the World" (PDF). Vertebrate Zoology. 57 (2): 187. Archived from the original (PDF) on 17 December 2010. Retrieved 29 May 2012.
  3. ^ Conant, R. 1975. A Field Guide to Reptiles and Amphibians of Eastern and Central North America, Second Edition. Houghton Mifflin. Boston. xviii + 429 pp. + 48 plates. ISBN 0-395-19977-8 (paperback). (Graptemys flavimaculata, p. 59 + Plate 8 + Map17.)
  4. ^ Horne, B.D. et al. 2003. Reproductive and Nesting Ecology of the Yellow-blotched Map Turtle, Graptemys flavimaculata: Implications for Conservation and Management. Copeia 2003 (4): 729-738.
  5. ^ Graptemys flavimaculata at The World's Top 25 Most Endangered Turtles 2003.
  6. ^ SELMAN, WILL; QUALLS, CARL; OWEN, JENNIFER C. (2013). "Effects of Human Disturbance on the Behavior and Physiology of an Imperiled Freshwater Turtle". The Journal of Wildlife Management. 77 (5): 877–885. ISSN 0022-541X.
  7. ^ Jones, R.L. 1996. Home range and seasonal movements of the turtle Graptemys flavimaculata. Journal of Herpetology 30 (3): 376-385.

External links[]

Further reading[]

  • Cagle, F.R. 1954. Two New Species of the Genus Graptemys. Tulane Studies in Zoology 1 (11): 165–186.
  • Smith, H.M., and E.D. Brodie Jr. 1982. Reptiles of North America: A Guide to Field Identification. Golden Press. New York. 240 pp. ISBN 0-307-13666-3 (paperback). (Grapemys flavimaculata, pp. 52–53.)
Retrieved from ""