Chinese alligator

From Wikipedia, the free encyclopedia - View original article

Chinese Alligator
Temporal range: Pleistocene-Recent,[1] 0.7–0 Ma
Conservation status
Scientific classification e
Kingdom:Animalia
Phylum:Chordata
Class:Reptilia
Branch:Crocodylomorpha
Order:Crocodylia
Family:Alligatoridae
Genus:Alligator
Species:A. sinensis
Binomial name
Alligator sinensis
Fauvel, 1879
Synonyms
  • Caigator sinensis Deraniyagala, 1947
 
  (Redirected from Chinese Alligator)
Jump to: navigation, search

Deuterostomia

Chinese Alligator
Temporal range: Pleistocene-Recent,[1] 0.7–0 Ma
Conservation status
Scientific classification e
Kingdom:Animalia
Phylum:Chordata
Class:Reptilia
Branch:Crocodylomorpha
Order:Crocodylia
Family:Alligatoridae
Genus:Alligator
Species:A. sinensis
Binomial name
Alligator sinensis
Fauvel, 1879
Synonyms
  • Caigator sinensis Deraniyagala, 1947

The Chinese alligator (simplified Chinese: 扬子鳄; traditional Chinese: 揚子鱷, (yáng zǐ è) Alligator sinensis) is one of two known living species of Alligator, a genus in the family Alligatoridae. It is native only to eastern China.

Contents

Appearance

Detail of head

While its appearance is very similar to the only other living member of the genus, the American alligator, there are a few differences. One obvious difference is that the Chinese alligator is quite small. Usually this species only attains an adult length of 5 feet (1.5 m) and a mass of 80 pounds (36 kg). Exceptional large males have reached 7 feet (2.1 m) in length and 100 pounds (45 kg) in weight.[2][3] Reports are known of alligators in China reaching 10 feet (3.0 m) in centuries past, but these are now generally considered apocryphal.[4] Unlike the American alligator, the Chinese alligator is fully armored; even the belly is armored,[2] which is a feature of only a few crocodilians.

Geographic range and habitat

While it originally ranged through much of China, this species' wild habitat has been reduced to little more than a few ponds containing 100 to 200 individuals[5] along Lake Tai and the lower Yangtze River in the provinces of Jiangsu, Zhejiang, and Anhui. Its population reduction has been mostly due to conversion of its habitat to agricultural use. A majority of their usual wetland habitats have been turned into rice paddies.[6][7] Poisoning of rats, which the alligators then eat, has also been blamed for their decline. In the past decade, very few wild nests have been found, and even fewer produced viable offspring.

Conservation status

The Chinese alligator is listed as a CITES Appendix I species, which puts extreme restrictions on its trade and exportation throughout the world. It is IUCN Red Listed as a critically endangered species. Efforts are underway to reintroduce captive-bred animals to suitable wild habitats, but thus far have not met with much success.

In captivity

Chinese alligators at Shanghai Zoo

Chinese alligators are quite prolific in captivity, with estimates of the total captive population at over 10,000 animals, mostly in the Anhui Research Centre of Chinese Alligator Reproduction and the Madras Crocodile Bank, as well as in numerous zoos, including the St. Augustine Alligator Farm Zoological Park which has successfully bred the Chinese alligator and has been fortunate enough to release some of the offspring back into the wild in China. They can also be seen in the reptile houses of the Toledo Zoo, Cincinnati Zoo, Memphis Zoo,[citation needed], St. Louis Zoo[8], and San Diego Zoo. In an effort to ensure the species' survival, Chinese alligators hatched at zoos in the United States are being reintroduced into the wild in China.[9]

Threats

The Chinese alligator is mainly endangered because of habitat pollution and reduction as their habitat is turned into rice paddies and because of extermination since farmers consider them as a menace.[7]

In several restaurants and food centers in China's booming areas, young and premature alligators are allowed to roam free with their mouths taped shut.[10] They are subsequently killed for human consumption, as in China alligator meat is thought to cure colds and prevent cancer.[10] In China the organs of the Chinese Alligator are sold as cures for a number of ailments.[6] This species is widely regarded as quite docile, but, as with any crocodilian, it is capable of inflicting grievous bodily harm.

See also

References

  1. ^ The Paleobiology Database: Alligatoridae
  2. ^ a b "Chinese alligator". Aquaticcommunity.com. http://www.aquaticcommunity.com/alligators/chinese.php. Retrieved 2012-01-22. 
  3. ^ [1]
  4. ^ Wood, Gerald (1983). The Guinness Book of Animal Facts and Feats. ISBN 978-0-85112-235-9. 
  5. ^ "Alligators, River Dolphins, Giant Salamanders In China - China". Facts and Details. 2001-08-21. http://factsanddetails.com/china.php?itemid=1052&catid=10&subcatid=68. Retrieved 2012-01-22. 
  6. ^ a b "www.flmnh.ufl.edu". www.flmnh.ufl.edu. http://www.flmnh.ufl.edu/cnhc/csp_asin.htm. Retrieved 2012-01-22. 
  7. ^ a b "The Chinese Alligator: Species On The Brink". YouTube. http://www.youtube.com/watch?v=BkTqXhnWHkw. Retrieved 2012-01-22. 
  8. ^ "Chinese Alligator". Saint Louis Zoo. http://www.stlzoo.org/animals/abouttheanimals/reptiles/alligatorsandcrocodiles/chinesealligator.htm. Retrieved 2012-01-22. 
  9. ^ "Chinese Alligator". cincinnatizoo.org. http://cincinnatizoo.org/blog/animals/chinese-alligator/. Retrieved 2012-01-29. 
  10. ^ a b Chang, L. T., and Olson, R.. Gilded Age, Gilded Cage. National Geographic Magazine, May 2008.


External links