Tuesday 21 May
Pancake tortoise (Malacochersus tornieri)
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Pancake tortoise fact file
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Pancake tortoise description
With its unusually thin, flat, flexible shell, and habit of fleeing rather than withdrawing into its shell, the pancake tortoise is amongst the oddest of all chelonians (4). While the shell bones of most other tortoises are solid, the pancake tortoise has shell bones with many openings, making it lighter and more agile than other tortoises (5). Since this tortoise could easily be torn apart by predators, it must rely on its speed and flexibility to escape from dangerous situations (6). The flexibility of its shell allows the pancake tortoise to crawl into narrow rock crevices to avoid potential predators (2), thus exploiting an environment that no other tortoise is capable of using (7). The carapace is brown, frequently with a variable pattern of radiating dark lines on each scute, helping to camouflage the tortoise in its natural dry habitat (2) (5) (6). The plastron is pale yellow with dark brown seams and light yellow rays (6), and the head, limbs and tail are yellow-brown (2). Sadly, its bizarre, flattened, pancake-like profile makes this tortoise a sought after animal in zoological and private collections, leading to its over-exploitation in the wild (7).
- Also known as
- African pancake tortoise, crevice tortoise, softshell tortoise, Tornier’s tortoise.
- Tortue À Carapace Souple, Tortue De Tornier.
- Tortuga De Cuña.
- Carapace length: to 17.8 cm (2)
Turtles of the World (CD-ROM), by Ernst, C.H., Altenburg, R.G.M. and Barbour, R.W.:
- Period of dormancy occurring in hot, dry periods, analogous to hibernation in winter.
- The top shell of a turtle. In arthropods (insects, crabs etc), the fused head and thorax (the part of the body located near the head) also known as ‘cephalothorax’.
- In reptiles, the lower shell of a turtle.
- One of the large keratinous scales on the carapace (the top shell of a turtle or tortoise).
IUCN Red List (September, 2008)
Turtles of the World (CD-ROM), by Ernst, C.H., Altenburg, R.G.M. and Barbour, R.W. (February, 2007)
CITES (September, 2008)
Connor, M.J. (1992) Pancake Tortoise, Malacochersus tornieri. Tortuga Gazette, 28(11): 1 - 3. Available at:
Jacksonville Zoo and Gardens (February, 2007)
WhoZoo: Animals of the Fort Worth Zoo (February, 2007)
Kirkpatrick, D.T. An Overview of the Natural History of the Pancake Tortoise, Malacochersus tornieri (February, 2007)
CITES: Consideration of Proposals for Amendment of Appendices I and II, Prop. 11.39 (February, 2007)
Bristol Zoo Gardens (February, 2007)
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Pancake tortoise biology
Pancake tortoises live in isolated colonies, with many individuals sharing the same kopje, or even crevice (6). Males fight for access to females during the mating season, in January and February, with large males tending to get the most chances to mate (2) (6). Nesting in the wild seems to occur in July and August, although clutches are produced year-round in captivity. The female digs a nest cavity about 7.5 to 10 cm deep in loose, sandy soil (2). Usually only one egg is laid at a time, but a female can lay multiple eggs over the course of a single season, with eggs appearing every four to eight weeks (2) (5). In captivity, the incubation of the eggs lasts from four to six months (6), and young are independent as soon as they hatch (9). Wild and captive specimens often bask and, although they do not appear to hibernate, there are reports that they may aestivate beneath flat rocks during the hottest months (2) (5).
Most activity occurs during the morning hours or in the late afternoon and early evening. The diet primarily consists of dry grasses and vegetation. The pancake tortoise is a fast and agile climber, and is rarely found far from its rocky home so that, if disturbed, it can make a dash for the nearest rock crevice (2).Top
Pancake tortoise rangeTop
Pancake tortoise habitatTop
Pancake tortoise statusTop
Pancake tortoise threats
The greatest threats facing the pancake tortoise are habitat destruction and over-harvesting for trade. The peculiar appearance and behaviour of this species has heightened its appeal for both zoological and private collections, leading to its over-exploitation (8). Given the low reproductive rate of this tortoise, populations that have been harvested may take a long time to recover. Suitable habitat for pancake tortoises is not common or extensive when found, and habitat destruction is exacerbating the problem (7). Populations in Kenya are threatened by clearance of thorn scrub for conversion to agriculture and, in Tanzania, over-grazing by goats and cattle may be having a negative impact on this tortoise (8).Top
Pancake tortoise conservation
In 1981, Kenya banned the export of the pancake tortoise unless given written permission by the Minister for the Environment and Natural Resources. Tanzania protects this species under the Wildlife Conservation (National Game) Order, 1974 (8), and it is protected within the Serengeti National Park (5). CITES quotas also limit the number of these animals that can be exported from Tanzania, although violations of these quotas are thought to occur. The European Union banned the import of the pancake tortoise in 1988, but trade with EU members continues, with several countries having reported importing the species (8). The pancake tortoise has been bred in captivity and is now the subject of a coordinated breeding programme in European Zoos (9). However, there are no commercial breeding operations to supply the market demand, meaning that this unusual and unique tortoise continues to edge ever closer to extinction in the face of human exploitation (8).Top
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