Friday 24 May
Yellow-blotched map turtle (Graptemys flavimaculata)
What’s the World’s Favourite Species?Find out here.
Yellow-blotched map turtle fact file
- Find out more
- Print factsheet
Yellow-blotched map turtle description
The yellow-blotched map turtle (Graptemys flavimaculata) is sometimes referred to as the yellow-blotched sawback turtle due to bizarre saw-like projections on its back. These projections stem from the centre of the turtle’s shell, mimicking the spine (2) (3).
The shell of this species is olive-brown, with yellow blotches covering the majority of the surface. Around the yellow blotches are thick yellow margins, sometimes called semicircles because of their shape. Along the seams of the shell are light cream and black colour patterns. These patterns are important as they are used to determine the age of the turtle, with the patterns fading as the turtles ages (2).
The male yellow-blotched map turtle has a long, thick tail and an elongated foreclaw, which it uses during courtship (2) (3). The yellow-blotched map turtle has a small head, although the female’s is broader and larger than the male’s (2). The skin is olive with yellow stripes. However, in some individuals the yellow is so dominant it appears that the map turtle is yellow with olive stripes (2) (3).
- Also known as
- Yellow blotched sawback. Top
IUCN/SSC Tortoise and Freshwater Turtle Specialist Group:
Conservation International - Freshwater Turtles:
- A species or taxonomic group that is only found in one particular country or geographic area.
- A diverse group of invertebrates, mainly marine, that have one or all of the following: a horny, toothed ribbon in the mouth (the radula), a shell covering the upper surface of the body, and a mantle or mantle cavity with a type of gill. Includes snails, slugs, shellfish, octopuses and squid.
IUCN Red List (December, 2010):
- Ernst, C.H. and Lovich, J.E. (2009) Turtles of United States and Canada. Second Edition. The Johns Hopkins University Press, Maryland.
- Ernst, C.H., Altenburg, R.G.M. and Barbour R.W. (1989) Turtles of the world. Smithsonian Institution Press, London.
NatureServe Explorer (January, 2011)
U.S. Fish and Wildlife Service (January, 2011)
George, G. (1991) Status and Conservation of Graptemys barbouri, Graptemys flavimaculata, Graptemys oculifera and Graptemys caglei. California Turtle and Tortoise Club. Available at:
- view the contents of, and Material on, the website;
- download and retain copies of the Material on their personal systems in digital form in low resolution for their own personal use;
- teachers, lecturers and students may incorporate the Material in their educational material (including, but not limited to, their lesson plans, presentations, worksheets and projects) in hard copy and digital format for use within a registered educational establishment, provided that the integrity of the Material is maintained and that copyright ownership and authorship is appropriately acknowledged by the End User.
Yellow-blotched map turtle biology
The diet of the yellow-blotched map turtle mainly consists of snails and insects. The male and juvenile predominantly eat insects, while the female mainly consumes molluscs. The female will occasionally take insects as well (2).
The male yellow-blotched map turtle reaches maturity at three to four years old, whereas the female doesn’t reach maturity until eight to ten years of age (1). During courtship, the male yellow-blotched map turtle will extend its neck and move towards the female. The female will show interest by extending its neck towards the male in reply, after which the male will stretch its forelimbs and stroke the side of the female’s head with its claw (3). The reproductive season lasts between 80 and 87 days (2).
The female yellow-blotched map turtle is very sensitive to the presence of humans during nesting. Disturbances to the female during efforts to nest can delay the female for hours, sometimes resulting in a failed nesting attempt. Clutch size normally ranges from three to nine eggs (2). Sometimes the female may produce more then one clutch per year, though this is quite rare. Often, the female will skip a year or two between producing eggs (1). The eggs and hatchlings of the yellow-blotched map turtle are preyed on by fish crows (Corvus ossifragus), king snakes (Lampropeltis sp.), fire ants (Solenopsis sp.), and grey foxes (Urocyon cinereoargenteus) (2).Top
Yellow-blotched map turtle rangeTop
Yellow-blotched map turtle habitat
The yellow-blotched map turtle lives primarily on sandbars within sand or clay bottomed streams and rivers, formed by moderate currents. It has also been found along banks, either with limestone ledges or rocky bottoms (1) (2).Top
Yellow-blotched map turtle status
The yellow-blotched map turtle is classified as Vulnerable (VU) on the IUCN Red List (1)Top
Yellow-blotched map turtle threats
The yellow-blotched map turtle is threatened by the pet trade, and by rising river water levels causing sandbars and nests to flood (2). When basking, this species is sometimes used as target practice by hunters, and many are killed (3) (5) (6). Nest predation by natural predators is extremely high, with up to 90 percent of young predated. Human disturbance at preferred nesting sites can drastically reduce the reproductive success of this species (1).
The loss and alteration of habitat is a serious threat to this species. The degradation of water quality due to pollution and the accumulation of toxic materials is also a major problem, as it is known to affect the major prey species that form the yellow-blotched map turtle’s diet (5).Top
Yellow-blotched map turtle conservation
The yellow-blotched map turtle was listed as federally threatened under the Endangered Species Act in 1991 (1). It is also protected by the state of Mississippi, however legislation has been difficult to enforce. The yellow-blotched map turtle lives within the Pascagoula River Wildlife Management Area. In an effort to protect more river habitat there are gates and signs within the management area to stop vehicles entering potential nesting areas of the yellow-blotched map turtle (6).Top
Find out more
For more information on freshwater turtle conservation:
This information is awaiting authentication by a species expert, and will be updated as soon as possible. If you are able to help please contact:
MyARKive offers the scrapbook feature to signed-up members, allowing you to organize your favourite ARKive images and videos and share them with friends.
Terms and Conditions of Use of Materials
Copyright in this website and materials contained on this website (Material) belongs to Wildscreen or its licensors.
Visitors to this website (End Users) are entitled to:
End Users shall not copy or otherwise extract, alter or manipulate Material other than as permitted in these Terms and Conditions of Use of Materials.
Additional use of flagged material
Green flagged material
Certain Material on this website (Licence 4 Material) displays a green flag next to the Material and is available for not-for-profit conservation or educational use. This material may be used by End Users, who are individuals or organisations that are in our opinion not-for-profit, for their not-for-profit conservation or not-for-profit educational purposes. Low resolution, watermarked images may be copied from this website by such End Users for such purposes. If you require high resolution or non-watermarked versions of the Material, please contact Wildscreen with details of your proposed use.
Creative commons material
Certain Material on this website has been licensed to Wildscreen under a Creative Commons Licence. These images are clearly marked with the Creative Commons buttons and may be used by End Users only in the way allowed by the specific Creative Commons Licence under which they have been submitted. Please see http://creativecommons.org for details.
Any other use
Please contact the copyright owners directly (copyright and contact details are shown for each media item) to negotiate terms and conditions for any use of Material other than those expressly permitted above. Please note that many of the contributors to ARKive are commercial operators and may request a fee for such use.
Save as permitted above, no person or organisation is permitted to incorporate any copyright material from this website into any other work or publication in any format (this includes but is not limited to: websites, Apps, CDs, DVDs, intranets, extranets, signage, digital communications or on printed materials for external or other distribution). Use of the Material for promotional, administrative or for-profit purposes is not permitted.