Trachemys scripta
(Thunberg in Schoepff, 1792)
Pond Slider
G5SecureGlobal Rank
Least concernIUCN
PSESA Status
MediumThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.104105
Element CodeARAAD09010
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVertebrate Animal
IUCNLeast concern
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomAnimalia
PhylumCraniata
ClassChelonia
OrderTestudines
FamilyEmydidae
GenusTrachemys
USESAPS
SynonymsChrysemys scriptaPseudemys scriptaTestudo scriptaSchoepff, 1792
Other Common NamesCommon Slider (EN) slider (EN) Tortue à oreille rouges (FR)
Concept ReferenceKing, F. W., and R. L. Burke, editors. 1989. Crocodilian, tuatara, and turtle species of the world: a taxonomic and geographic reference. Association of Systematics Collections, Washington, D.C. 216 pp.
Taxonomic CommentsFormerly included in the genus Pseudemys, and sometimes has been placed in the genus Chrysemys. Seidel (2002) reviewed the extant species and subspecies of Trachemys and concluded that 15 species should be recognized. See also Ward (1984) and Seidel and Smith (1986).
Trachemys scripta formerly included T. gaigeae and T. gaigeae hartwegi as subspecies.
See Jackson (1988) for review of fossil record in relation to taxonomic status of Trachemys.
MtDNA data reveal two lineages with a strong geographic orientation generally consistent with decribed subspecies ranges, though two individuals with the western haplotype A were observed in the Atlantic coastal plain (Walker and Avise 1998).
Conservation Status
Review Date2005-08-17
Change Date1996-10-21
Edition Date2005-08-17
Threat ImpactMedium
Range Extent200,000 to >2,500,000 square km (about 80,000 to >1,000,000 square miles)
Number of Occurrences> 300
Range Extent CommentsThe range extends from Michigan to Argentina, and from the Atlantic coast to New Mexico; it also includes southern Baja California (at least formerly). The species has been introduced and is established in many areas outside the native range, including Florida (Schwartz and Henderson 1991; Ashton and Ashton 1991; Hutchison, 1992, Herpetol. Rev. 23:74-75; Townsend et al., 2002, Herpetol. Rev. 33:75; Ehret and Parker, 2005, Hepretol. Rev. 36:78), Guam (McCoid, 1992, Herpetol. Rev. 23:26), New York (Klemens 1993), and New Mexico (Stuart, 1995, Herpetological Review 26:107). It has been found in California (e.g., Stitt et al., 2004, Herpetol. Rev. 35:187) and Hawaii (McKeown 1996), but establishment is uncertain.
Ecology & Habitat
Habitat
Usually in quiet water with abundant aquatic vegetation, soft bottom, and basking sites. Hibernates underwater or in protected places near waterline (Ernst and Barbour 1972). More tolerant of pollution than are most turtles. Eggs are laid in nests dug in soft damp soil in open areas. Nesting area may be on nearest suitable site or far from water (usually the former) (Ernst and Barbour 1972). In Costa Rica, some females briefly enter the sea and nest on Caribbean Sea beaches (upper beach berm usually under cocoplum vegetation; hatchlings probably do not enter the sea (Moll 1994).
Ecology
Most of 1006 turtles marked and released in Illinois were recaptured within 0.8 km of release point (see Ernst and Barbour 1972). Movements exceeding 2 km are known. In South Carolina, a metapopulation encompassed habitats 3.5 km from a core area (10-ha wetland) (Burke et al. 1995).
Some populations exhibit significantly faster growth rate and larger adult body size than others.
Nest survivorship in Panama was 0.03. In South Carolina, annual first-year survivorship (from egg laying) averaged 0.11 (range 0.01-0.28) over 5 years; annual survivorship was 0.84 for adult males, 0.77 for adult females (Frazer et al. 1990).
Reproduction
In the U.S., eggs are laid from mid-March to August, with the earliest nesting occurring in the southern states. Nests from January to March near Tortuguero, Costa Rica (Moll 1994). In South Carolina, mean clutch size was 6.3 (range 1-6); nesting females produced an average of 1.1 clutches/year (usually 1 clutch, rarely as many as 3); successive clutches generally were separated by an interval of about 1 month; females matured at age 7 years (Frazer et al. 1990). In Illinois, females produced an estimated 2-3 clutches per year, and most adult females evidently nested in successive years (Tucker 2001). In the U.S., eggs hatch in summer or early fall; hatchlings may commonly overwinter in nest (Jackson 1994). In Costa Rica, hatchlings from sea beach nests emerged by May and June (Moll 1994). In South Carolina, the mean proportion of adult females nesting in any given year was 0.37 (Frazer et al. 1990). See Tucker et al. (1995, Herpetologica 51:354-358) for information on annual variation in individual growth rates.
Palustrine HabitatsHERBACEOUS WETLANDFORESTED WETLANDRiparian
Other Nations (2)
United StatesN5
| Province | Rank | Native |
|---|
| Iowa | S3 | Yes |
| Delaware | SNA | No |
| West Virginia | SNA | Yes |
| Massachusetts | SNA | No |
| Washington | SNA | No |
| Missouri | S5 | Yes |
| Indiana | S4 | Yes |
| Alabama | S5 | Yes |
| Florida | S5 | Yes |
| Texas | S4 | Yes |
| Virginia | S4 | Yes |
| New Mexico | S4 | Yes |
| Kansas | S5 | Yes |
| Pennsylvania | SNA | No |
| Arizona | SNA | No |
| Oklahoma | SNR | Yes |
| Arkansas | S5 | Yes |
| South Carolina | SNR | Yes |
| Maryland | S5 | Yes |
| Nevada | SNA | No |
| Illinois | S5 | Yes |
| New York | SNA | No |
| Georgia | S5 | Yes |
| Louisiana | S5 | Yes |
| Idaho | SNA | No |
| North Carolina | S5 | Yes |
| Tennessee | S5 | Yes |
| Nebraska | S1 | Yes |
| Michigan | SNA | Yes |
| New Jersey | SNA | No |
| Ohio | SNR | Yes |
| Oregon | SNA | No |
| Mississippi | S5 | Yes |
| Kentucky | SNR | Yes |
| District of Columbia | SNR | Yes |
CanadaNNA
| Province | Rank | Native |
|---|
| Quebec | SNA | No |
| Nova Scotia | SNA | No |
| Ontario | SNA | No |
| Saskatchewan | SNA | No |
| British Columbia | SNA | No |
Roadless Areas (66)
California (31)
| Area | Forest | Acres |
|---|
| Antimony | Los Padres National Forest | 40,911 |
| Barker Valley | Cleveland National Forest | 11,940 |
| Black Butte | Los Padres National Forest | 5,116 |
| Cajon | San Bernardino National Forest | 7,548 |
| Camuesa | Los Padres National Forest | 8,209 |
| City Creek | San Bernardino National Forest | 9,997 |
| Coldwater | Cleveland National Forest | 8,402 |
| Cucamonga A | Angeles National Forest | 1,249 |
| Cucamonga B | San Bernardino National Forest | 11,933 |
| Cucamonga C | San Bernardino National Forest | 4,106 |
| Deep Creek | San Bernardino National Forest | 23,869 |
| Dobie Flat | Modoc National Forest | 15,079 |
| Granite Peak | San Bernardino National Forest | 450 |
| Ladd | Cleveland National Forest | 5,300 |
| Lavas | Modoc National Forest | 25,864 |
| Magic Mountain | Angeles National Forest | 15,542 |
| Malduce Buckhorn | Los Padres National Forest | 14,177 |
| Mill Creek | Sequoia National Forest | 27,643 |
| Mill Peak | San Bernardino National Forest | 7,884 |
| Mono | Los Padres National Forest | 28,141 |
| Moses | Sequoia National Forest | 22,077 |
| Mystic (CA) | Humboldt-Toiyabe National Forest | 836 |
| North Mountain | Stanislaus National Forest | 7,856 |
| Pleasant View | Angeles National Forest | 26,395 |
| Red Mountain | Angeles National Forest | 8,034 |
| San Dimas | Angeles National Forest | 7,160 |
| San Gabriel Add | Angeles National Forest | 2,527 |
| San Sevaine | San Bernardino National Forest | 6,866 |
| Santa Cruz | Los Padres National Forest | 21,182 |
| Sheep Mountain | Angeles National Forest | 21,098 |
| Wildhorse | Cleveland National Forest | 1,483 |
Idaho (1)
| Area | Forest | Acres |
|---|
| Bear Creek | Caribou-Targhee National Forest | 118,582 |
New Mexico (1)
| Area | Forest | Acres |
|---|
| Gila Box | Gila National Forest | 23,759 |
Oregon (1)
| Area | Forest | Acres |
|---|
| Hellhole | Umatilla National Forest | 65,679 |
South Carolina (1)
| Area | Forest | Acres |
|---|
| Hellhole Ext | Francis Marion National Forest | 891 |
South Dakota (1)
| Area | Forest | Acres |
|---|
| Indian Creek | Buffalo Gap National Grassland | 24,666 |
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