Annam brook turtle
| Annam brook turtle | ||||||||||||
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Annam's brook turtle ( Mauremys annamensis ) |
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| Mauremys annamensis | ||||||||||||
| ( Siebenrock , 1903) |
The Annam brook turtle ( Mauremys annamensis , Syn .: Cathaiemys annamensis , Annamemys annamensis ) is a species of Old World pond turtles and belongs to the genus of the brook turtles ( Mauremys ). It is a rare IUCN endangered species that is restricted to a small area in Vietnam . It is one of the largest species among the Old World pond turtles. Their system has not yet been conclusively clarified. At times it would be listed together with the yellow pond turtle in the genus of the Asian water turtle ( Cathaiemys ).
Appearance
The Annam brook turtle has a carapace of maximum 30 centimeters. The species differs from other Old World pond turtles in the color of their head. It is dark and has three to four longitudinal stripes that run down the side of the head. The belly armor is yellow or orange and has a black patch of color on each shield. There are three longitudinal keels on the back armor. The feet are webbed.
Distribution, way of life and existence
The Annam brook turtle is endemic to a small area in the Quang Nam Province of central Vietnam. Even in the 1930s it was considered a common species and was found near Da Nang , among others . A field survey carried out after 1941 could no longer find any wild individuals. However, since it repeatedly appeared in food markets in China and Hong Kong, it was not considered to be extinct. Animals were imported to Europe and the USA on various occasions, particularly in the 1980s and 1990s. Most of these came into the care of experienced turtle keepers and the first successes in breeding were soon achieved. In 2006, an isolated population of Annam brook turtles was found near Hoi An . The species is now being bred on a turtle farm on the Chinese island of Hainan, where unfortunately there are often hybrids with the sister species Mauremys mutica . The Annam turtle is also reared - but only in small numbers - at the Cuc Phuong Turtle Conservation Center in the Cuc Phuong National Park in North Vietnam. In Europe and the USA, Mauremys annamensis is now propagated very successfully, especially by various private owners and in the International Center for Turtle Conservation at Münster Zoo, so that at least the survival of the species in captivity is ensured. In the wild, however, it is directly threatened with extinction, as poaching of this turtle species has not yet been prevented. If this succeeds, animals from European and American offspring could be released back into the wild.
Way of life
So far, very little is known about the way of life of this species. Based on their physique and their habitat, one concludes that they live in or near slowly flowing or stagnant water. It is considered omnivorous because captive animals eat fruits and leaves as well as fish and worms. The females of this species have clutches that usually contain one to eight eggs. The largest clutch known to date contained twelve eggs. The young animals hatch after an incubation period of 80 to 90 days.
proof
literature
- Manfred Rogner : Turtles. Biology, husbandry, reproduction. Eugen Ulmer, Stuttgart 2008, ISBN 978-3-8001-5440-1 .
- Eleanor Jane Sterling, Martha Maud Hurley, Le Duc Minh: Vietnam. A natural history. Yale University Press, New Haven NJ 2006, ISBN 0-300-12693-X .
Individual evidence
- ↑ Sterling, p. 253
- ↑ a b Asian Turtle Network : Mauremys annamensis ( Memento of the original from September 28, 2007 in the Internet Archive ) Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. . Version of August, 2006. Retrieved December 9, 2006.
- ↑ a b Asian Turtle Network: Mauremys annamensis recorded in natural habitat after 65 years . Version of 2006-DEC-07. Retrieved September 3, 2007.
- ↑ IUCN : Inclusion of Annam Pond Turtle Annamemys (Mauremys) annamensis in Appendix II ( Memento from July 21, 2011 in the Internet Archive ) (PDF; 24 kB). Retrieved December 9, 2006.
- ^ Asian Turtle Network: Cuc Phuong Turtle Conservation Center and by IUCN-affiliated breeders. Retrieved December 9, 2006.
- ↑ Sterling et al .: Vietnam. A natural history. 2006, p. 254
- ↑ Rogner: Turtles. Biology, husbandry, reproduction. 2008, p. 97.
Web links
- Mauremys annamensis in The Reptile Database
- Major infusion of new bloodlines forecast for the Vietnam Pond Turtle, Mauremys annamensis, TMG. Turtle Survival Alliance, archived from the original on September 28, 2007 ; accessed on February 23, 2013 .