Английская Википедия:Big-headed turtle
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The big-headed turtle (Platysternon megacephalum) is a species of turtle in the family Platysternidae from Southeast Asia and southern China.[1]
Background
Previously considered a distinct family placed on occasion in "Kinosternoidea", it was later moved to the Emydidae. This, as well as the subfamily and the genus Platysternon, are monotypic.
The big-headed turtle is named after its unproportionally large head which leads to an inability to retreat into its shell. In order to protect itself it instead has an armored head and sharp beak.[2]
Distribution
The big-headed turtle is found in Cambodia, China, Laos, Myanmar, Thailand, and Vietnam.[3][1] It is commonly found in fast flowing streams and waterfalls in rocky areas. [1]
Behaviour
The big-headed turtle is known to readily climb over obstacles in and around rivers and fast streams, using its tail as a prop to extend the reach of its strong claws. It also uses its beak to assist in climbing.[4] It has been reported to climb trees and bushes. These turtles generally move more during the night, and are not prone to moving long distances. They have a general daily range of 0-89.6m and males tend to move further than the females in this species.[5] They are not strong swimmers, and when swimming, this species occasionally arches its tail in the manner of a scorpion.[4] The big-headed turtle cannot pull its head in its shell. That being the case, it will not hesitate to use its powerful jaws to defend itself. Its diet consists of fish, snails and worms.[6] It also tends to eat fruits like the Machilus spp., as well as insects, crabs and mollusks.[7]
Exploitation
The big-headed turtle is found quite frequently in illegal wildlife trade.[2] It is readily consumed in Asia and is frequently a market item. Hunters capture them on lines with baited straight pins, so this species is rapidly disappearing in the wild.[8] The species is also threatened by its use in the pet trade.[3]
Subspecies
- P. m. megacephalum, China, 1831[1]
- P. m. peguense, Myanmar and Thailand, 1870[1]
- P. m. shiui, Cambodia, Laos and Vietnam, 1987[1]
In addition, two other subspecies, P. m. tristernalis (1984) and P. m. vogeli (1969), have been given, but may be invalid.[9]
References
- Bibliography
- Шаблон:AnchorШаблон:Cite web
- Шаблон:AnchorШаблон:Cite web
- Pritchard, D. 1979. Encyclopedia of Turtles. New Jersey: T.F.H. Publications, Inc. Ltd.
- "The Big-headed Turtle (Platysternon megacephalum) Project". asianturtleprogram.org. Retrieved 2023-03-14
External links
- Big-headed turtle (Platysternidae)
- (Chinese) Big-headed turtle
- (Spanish) Platysternon megacephalum Шаблон:Webarchive
Шаблон:Testudines Шаблон:Taxonbar
- ↑ 1,0 1,1 1,2 1,3 1,4 Ошибка цитирования Неверный тег
<ref>; для сносокRhodin107не указан текст - ↑ 2,0 2,1 Шаблон:Cite web
- ↑ 3,0 3,1 Ошибка цитирования Неверный тег
<ref>; для сносокiucn status 15 November 2021не указан текст - ↑ 4,0 4,1 Kirkpatrick, David T. 1995. Platysternon megacephalum. Reptile & Amphibian Magazine, November/December 1995, pages 40 – 47. C/R. Шаблон:Webarchive Retrieved 2012-11-25.
- ↑ Шаблон:Cite web
- ↑ Шаблон:Cite web
- ↑ Шаблон:Cite journal
- ↑ James E. Barzyk Turtles in Crisis: The Asian Food Markets. The article itself is not dated, but mostly refers to data in the range 1995-2000.
- ↑ Platysternon megacephalum Шаблон:Webarchive
- Английская Википедия
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- Testudinoidea
- Turtles of Asia
- Reptiles of Cambodia
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- Reptiles of Laos
- Reptiles of Myanmar
- Reptiles of Thailand
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- Reptiles described in 1831
- Taxa named by John Edward Gray
- Taxonomy articles created by Polbot
- Critically endangered fauna of China
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