Chinese giant salamander
   HOME

TheInfoList



The Chinese giant salamander (''Andrias davidianus'') is one of the largest
salamander Salamanders are a group of amphibian Amphibians are ectothermic, tetrapod vertebrates of the Class (biology), class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most spe ...

salamander
s and one of the largest
amphibian Amphibians are ectothermic, tetrapod vertebrates of the Class (biology), class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial animal, ter ...
s in the world.''Andrias davidianus''
-Amphibiaweb
It is fully aquatic and is
endemic Endemism is the state of a species In biology Biology is the natural science that studies life and living organisms, including their anatomy, physical structure, Biochemistry, chemical processes, Molecular biology, molecular interact ...
to rocky mountain streams and lakes in the
Yangtze The Yangtze or Yangzi ( or ) is the longest , the in the world and the longest in the world to flow entirely within one country. It rises at Jari Hill in the (Tibetan Plateau) and flows in a generally easterly direction to the . It is ...
river basin of central
China China (), officially the People's Republic of China (PRC; ), is a country in . It is the world's , with a of more than 1.4 billion. China spans five geographical and 14 different countries, the in the world after . Covering an area of ap ...

China
. Either it or a close relative has been introduced to
Kyoto Prefecture is a prefecture A prefecture (from the Latin Latin (, or , ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken in the area around Rome, known as Latium. Th ...
in
Japan Japan ( ja, 日本, or , and formally ) is an in . It is situated in the northwest , and is bordered on the west by the , while extending from the in the north toward the and in the south. Japan is a part of the , and spans of coveri ...

Japan
and to
Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia East Asia is the eastern region of Asia Asia () is Earth's largest and most populous continent, located primarily in the Eastern Hemisphere, Eastern and N ...

Taiwan
. It is considered critically endangered in the wild due to
habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat Ibex in an alpine habitat In ecology, the term habitat summarises the array of resources, physical and biotic factors that are pr ...
, pollution, and overcollection, as it is considered a
delicacy Image:4 Kobe Beef, Kobe Japan.jpg, Kobe beef A delicacy is usually a rare or expensive food item that is considered highly desirable, sophisticated or peculiarly distinctive, within a given culture. Irrespective of local preferences, such ...

delicacy
and used in
traditional Chinese medicine#REDIRECT Traditional Chinese medicine {{Redirect category shell, 1= {{R from other capitalisation ...
. On farms in central China, it is extensively farmed and sometimes bred, although many of the salamanders on the farms are caught in the wild. It has been listed as one of the top-10 "focal species" in 2008 by the Evolutionarily Distinct and Globally Endangered project. The Chinese giant salamander is considered to be a "
living fossil A living fossil is an extant taxon that cosmetically resembles ancestral species known only from the fossil record. To be considered a living fossil, the fossil species must be old relative to the time of origin of the extant clade. Living foss ...
". Although protected under
Chinese law Chinese law is one of the oldest legal traditions in the world. The core of modern Chinese law is based on Germanic-style Civil law (legal system), civil law, socialist law, and Traditional Chinese law, traditional Chinese approaches. For mo ...
and
CITES CITES (shorter name for the Convention on International Trade in Endangered Species of Wild Fauna and Flora, also known as the Washington Convention) is a multilateral treaty A multilateral treaty is a treaty to which two or more sovereign stat ...

CITES
Appendix I, the wild population has declined by more than an estimated 80% since the 1950s. Although traditionally recognized as one of two living species of ''
Andrias ''Andrias'' is a genus of giant salamanders. It includes the largest salamander Salamanders are a group of amphibians typically characterized by a lizard Lizards are a widespread group of Squamata, squamate reptiles, with over 6,000 sp ...

Andrias
'' salamander in Asia, the other being the Japanese giant salamander, evidence indicates that the Chinese giant salamander may be composed of at least five cryptic species, further compounding each individual species' endangerment.


Taxonomy

The correct scientific name of this species has been argued to be ''Andrias scheuchzeri'' (in which case ''Andrias davidianus'' would be a junior synonym) – a name otherwise restricted to an extinct species described from Switzerland, Swiss fossils. It has also been given the moniker of "living fossil" for being part of the family Cryptobranchidae which dates back 170 million years. It is one of only four to five known extant taxon, extant species of the family, the others being the slightly smaller, but otherwise very similar Japanese giant salamander (''Andrias japonicus''), the slightly larger South China giant salamander (''A. sligoi''), an undescribed species from eastern China, and the far smaller North American hellbender (''Cryptobranchus alleganiensis'').Browne, R.K.; Li, H.; Wang, Z.; Okada, S.; Hime, P.; McMillan, A.; Wu, M.; Diaz, R.; McGinnity, D.; & Briggler, J.T. (2014).
The giant salamanders (Cryptobranchidae): Part B. Biogeography, ecology and reproduction.
'' Amphibian and Reptile Conservation 5(4): 30–50.
A 2018 study of mitochondrial DNA revealed that there are five wild clades of the Chinese giant salamander, as well as two only known from captives (their possible wild range is unknown). They diverged from each other 4.71–10.25 million years ago and should possibly be recognized as cryptic species. Despite this deep divergence, they can Hybrid (biology), hybridize among each other, and also with the Japanese giant salamander. One of these clades was identified in 2019 as ''South China giant salamander, Andrias sligoi'', a species described in 1924 by Edward George Boulenger and later synonymized with ''A. davidianus'', with the study supporting its revival as a distinct taxon. Another as-of-yet undescribed species was also identified that formerly inhabited rivers originating from the Huangshan mountains in eastern China.


Description

It has a large head, small eyes, and dark, wrinkly skin. Its flat, broad head has a wide mouth, round, lidless eyes, and a line of paired Tubercle (anatomy), tubercles that run around its head and throat. Its color is typically dark brown with a mottled or speckled pattern, but it can also be other brownish tones, dark reddish, or black. Albinism in biology, Albinos, which are white or orange, have been recorded.Sparreboom, M.; & Wu, Y. (2014).
Andrias davidianus (Blanchard, 1871)
'' Salamanders of China. Retrieved 23 February 2016.
All species of giant salamanders produce a sticky, white skin secretion that repels predators. The average adult salamander weighs and is in length. It can reach up to in weight and in length, making it the second-largest amphibian species, after the South China giant salamander (''Andrias sligoi''). The longest recently documented Chinese giant salamander, kept at a farm in Zhangjiajie, was in 2007. At , both this individual, and a long, individual found in a remote cave in Chongqing in December 2015, surpassed the species' typically reported maximum weight. The giant salamander is known to vocalize, making barking, whining, hissing, or crying sounds. Some of these vocalizations bear a striking resemblance to the crying of a young human child, and as such, it is known in the Chinese language as the "infant fish" (娃娃鱼 / 鲵 - Wáwáyú/ ní).


Behavior


Feeding

The Chinese giant salamander has been recorded feeding on insects, millipedes, horsehair worms, amphibians (both frogs and salamanders), freshwater crabs, shrimp, fish (such as ''Saurogobio'' and ''Cobitis'') and Asiatic water shrew. Presumably ingested by mistake, plant material and gravel have also been found in their stomachs. Cannibalism (zoology), Cannibalism is frequent; in a study of 79 specimens from the Qinling–Dabashan range, the stomach content of five included remains of other Chinese giant salamanders and this made up 28% of the combined weight of all food items in the study. The most frequent items in the same study were freshwater crabs (found in 19 specimens), which made up 23% of the combined weight of all food items. It has very poor eyesight, so it depends on special sensory nodes that run in a line on the body from head to tail. It is capable of sensing the slightest vibrations around it with the help of these nodes. Based on a captive study, most activity is from the earlier evening to the early night. Most individuals stop feeding at water temperatures above and feeding ceases almost entirely at . Temperatures of are lethal to Chinese giant salamanders.


Breeding and lifecycle

Both sexes maintain a Territory (animal), territory, averaging for males and for females. The reproductive cycle is initiated when the water temperature reaches and mating occurs between July and September. The female lays 400–500 eggs in an underwater breeding cavity, which is guarded by the male until the eggs hatch after 50–60 days. When laid, the eggs measure in diameter, but they increase to about double that size by absorbing water. When hatching, the larvae are about long and external gills remain until a length of about at an age of 3 years. Maturity is reached at an age of 5 to 6 years and a length of . The maximum age reached by Chinese giant salamanders is unknown, but it is at least 60 years based on captive individuals. Undocumented claims have been made of 200-year-old Chinese giant salamanders, but these are considered unreliable.


Distribution and habitat

The Chinese giant salamander species complex comprises five clades, with multiple possibly worthy of species recognition. Their native ranges differ, but release of Chinese giant salamanders from captivity has complicated this picture. They were widespread in central, south-western and southern China, although their range is now highly fragmented. Their range spans the area from Qinghai east to Jiangsu and south to Sichuan, Guangxi and Guangdong; notably in the Drainage basin, basins of the
Yangtze The Yangtze or Yangzi ( or ) is the longest , the in the world and the longest in the world to flow entirely within one country. It rises at Jari Hill in the (Tibetan Plateau) and flows in a generally easterly direction to the . It is ...
, Yellow River, Yellow and Pearl River (China), Pearl Rivers. One is from the Pearl River basin (at least in Guangxi), two from the Yellow River basin, one from the Yangtze River basin (at least in Chongqing and Guizhou) and the final from the Qiantang River (at least in Anhui). Two additional clades are only known from captivity (their wild range is unknown) and no samples are available for the population in the Tibetan Plateau. A 2019 study has identified that the Yangtze River clade comprises the "true" ''A. davidianus'', the Pearl River clade comprises ''A. sligoi'', and the Qiantang clade comprises the undescribed Huangshan Mountains species. Finds in
Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia East Asia is the eastern region of Asia Asia () is Earth's largest and most populous continent, located primarily in the Eastern Hemisphere, Eastern and N ...

Taiwan
may be the result of Introduced species, introduction. Chinese giant salamanders have been introduced to the
Kyoto Prefecture is a prefecture A prefecture (from the Latin Latin (, or , ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken in the area around Rome, known as Latium. Th ...
in Japan where they present a threat to the native Japanese giant salamander, as the two hybridize. The Chinese giant salamander is entirely aquatic and lives in rocky hill streams and lakes with clear water. It typically lives in dark muddy or rocky crevices along the banks. It is usually found in forested regions at altitudes of , with most records between . There is an isolated population at an altitude of in Qinghai (Tibetan Plateau), but its Taxonomy (biology), taxonomic position is uncertain and the site likely does not support giant salamanders anymore due to pollution. The salamanders prefer to live in streams of small width (on average, across), quick flow, and little depth (on average, deep). Water temperature varies depending on season, with typical range at low elevation sites being from and at high elevation sites from . Although they prefer to have quick flow in the stream, the burrows in which they lay their eggs often have much slower flow. Furthermore, their habitat often possesses very rocky, irregular stream beds with a lot of gravel and small rocks as well as some vegetation. Chinese giant salamanders are also known from subterranean rivers. As populations in aboveground rivers and lakes are more vulnerable to poaching, there are some parts of China where only the subterranean populations remain.


In captivity


Farming

Very large numbers are being Animal husbandry, farmed in China, but most of the Animal breeding#Breeding stock, breeding stock are either wild-caught or first-generation captive-bred.Salisbury, C. (13 November 2015).
Chinese Giant Salamander: millions farmed, nearly extinct in the wild
'' Mongabay. Retrieved 22 February 2016.
This is partially explained by the fact that the industry is relatively new, but some farms have also struggled to produce second-generation captive-bred offspring. Registrations showed that 2.6 million Chinese giant salamanders were kept in farms in 2011 in Shaanxi alone, far surpassing the entire countrywide wild population estimated at less than 50,000 individuals. Shaanxi farms (mainly in the Qin Mountains, Qinling Mountain region) accounted for about 70% of the total output in China in 2012, but there are also many farms in Guizhou and several in other provinces. Among 43 south Shaanxi farms surveyed, 38 bred the species in 2010 and each produced an average of c. 10,300 larvae that year. Farming of Chinese giant salamanders, herbs and Fungiculture, mushrooms are the three most important economic activities in Shaanxi's Qinling Mountain region, and many thousands of families rely on the giant salamander farms for income. The giant salamander farming mainly supplies the food market, but whether this can be achieved to an extent where the pressure on the wild populations is reduced is doubtful. Release of captive-bred Chinese giant salamanders is supported by the government (8,000 were released in Shaanxi in 2011 alone), but represent a potential risk to the remaining wild population, as diseases such as ''Ranavirus'' are known from many farms. The vast majority of the farmed Chinese giant salamanders, almost 80% based on a study published in 2018, are of Yellow River origin (the so-called haplotype B), although those from other regions also occur. Farms have generally not considered this issue when releasing giant salamanders and Yellow River animals now dominate in some regions outside their original range, further endangering the native types. Additionally, release of untreated wastewater from farms may spread diseases to wild Chinese giant salamanders.


In zoos and aquariums

As of early 2008, Species360 records show only five individuals held in US zoos (Zoo Atlanta, Cincinnati Zoo and Botanical Garden, Cincinnati Zoo, and Saint Louis Zoological Park), and an additional four in European zoos (Dresden Zoo and Diergaarde Blijdorp, Rotterdam Zoo); as well as one in the State Museum of Natural History Karlsruhe, where it is also the museum's mascot. As of 2019, London Zoo holds four individuals (one of them on display) that were seized from an illegal importation of amphibians in 2016. A medium-sized individual, approximately long, was kept for several years at the California Academy of Sciences, Steinhart Aquarium in San Francisco, California, and is now on display again in the "Water Planet" section of the new California Academy of Sciences building. There are also two in residence at the Los Angeles Zoo. Additional individuals are likely kept in non-Species360 zoos and animals parks in its native China, such as Shanghai Zoo. Several of them are kept in the aquaria of Shanghai and Xian. The Osaka Aquarium Kaiyukan in Japan has both a Chinese and a Japanese giant salamander on display, as does the Saitama aquarium in Hanyū, Saitama. Since May 2014, 33 Chinese giant salamanders, including three adults, have been held in Prague Zoo. The main attraction is the largest individual in Europe, which is long.


Decline in population

In the past, the Chinese giant salamander was fairly common and widespread in China. Since the 1950s, the population has declined rapidly due to habitat destruction and overhunting. It has been listed as Critically Endangered in the ''Chinese Red Book of Amphibians and Reptiles''. Despite the Chinese Government listing the salamander as a Class II Protected Species, 100 salamanders are hunted illegally every year in the Hupingshan Natural Nature Reserve alone. Since the 1980s, 14 nature reserves have been established as an effort to conserve the species. Despite this, the population continues to decline with the salamanders becoming increasingly difficult to find. In a recent survey of the species in the Qinghai Province, none were found indicating the population size is at a significantly low number or the species is locally extinct in the province. This is believed to be due to the increased mining in the region. In recent years populations have also declined with an epizootic ''Ranavirus'' infection. The disease causes severe hemorrhaging in both juveniles and adult salamanders. The virus was named the Chinese giant salamander iridovirus (GSIV). Its natural range has suffered in the past few decades due to habitat loss and overharvesting. Consequently, many salamanders are now farmed in mesocosms across China. Furthermore, previously built concrete dams that destroyed the salamander's habitat are now fitted with stairs so that the animal can easily navigate the dam and make it back to its niche. The Chinese giant salamander is listed as a critically endangered species. It has experienced a drastic population decline, which is estimated to be more than 80% in the last 3 generations due to human causes. Human consumption is the main threat to the Chinese giant salamander. They are considered to be a luxury food item, as well as an important source of traditional medicines in China. They are easy to hunt, so catching them is not a problem. Breeding Chinese giant salamanders is a large industry with thousands of breeding and many enterprises.


Habitat destruction

According to a recent study, 90% of the Chinese giant salamanders' habitat was destroyed by the year 2000, and there are many human-related causes of such massive destruction. Because the salamander dwells in free-flowing streams, industrialization is a large problem for many stream-dwelling species. The construction of dams greatly disturbs their habitat by either causing these streams to dry up or to stand still, thus making it uninhabitable by the salamanders. Siltation also contributes to the degradation of their habitats by soiling the water. Deforestation in areas near the streams can worsen soil erosion and create Surface runoff, runoff into the streams as well, which reduces the water quality to a great extent. The reduced water quality makes it much more difficult for the salamanders to absorb oxygen through their skin and can often bring death to those within the species. Water pollution is also a great factor in the habitat destruction of the Chinese giant salamander; the immense decline in their population can be traced to, among the other major problems of over-hunting and failed conservation efforts, the tainting of the water that they live in. Mining activity in particular in areas near their streams often causes runoff that sullies the water, and farming—and all of the pesticides and chemicals that affect the soil that come with it—has a vastly negative effect on the areas near the streams as well. The presence of macronutrients in the streams can also cause algal blooms, which cloud the water and force the temperature to rise. The salamanders reside primarily in very cold underwater cavities and follow a specific nesting requirement, which means that they will only reproduce and care for their eggs in areas such as these, so changes in temperature are incredibly detrimental to their health and well-being as well as to their perpetuation as a species. These algal blooms also deplete the levels of oxygen in the water, and a lesser supply of oxygen can quite easily hold the potential to kill off many members of the dwindling species. Many efforts have been undertaken to create reserves and faux habitats for the Chinese giant salamander so that they can reproduce without worry of soiled water, but many of these reserves have failed in having a great impact overall due to the massive overhunting of the species. No matter how many members of the species they manage to save through the reserves, the poachers still manage to capture and kill that many more. Although habitat destruction is certainly not assisting in the perpetuation of the species, it is certainly not the biggest obstacle that the Chinese giant salamander faces in its quest to avoid extinction.


Climate change

Like other amphibians, the Chinese giant salamander is ectothermic. Most Chinese giant salamanders stop feeding at water temperatures above and feeding ceases almost entirely at . Temperatures of are lethal to Chinese giant salamanders. As a consequence, the species is vulnerable to global warming.


Overhunting

One of the main reasons that the Chinese giant salamander, ''Andrias davidianus'', has been placed on the critically endangered list by the International Union for Conservation of Nature is overhunting. 75% of native species in China are harvested for food. The salamander is also used for traditional medicinal purposes. In 1989, the Chinese government placed legal protection on the salamander (category II due to its population decline by The Wild Animal Protection Law of China and Appendix I in the Convention of Endangered Species of Wild Fauna.). But the salamander populations have continued to decline. The domestic demand for salamander meat and body parts greatly exceeds what can sustainably be harvested from the wild. Commercial captive breeding operations so far still rely on the regular introduction of new wild-caught breeding adults, because captive-bred animals have proven difficult to mate. In addition, salamander farms would need to increase their yield manifold before the black-market price of poached salamander drop significantly, meaning that a stricter enforcement of anti-poaching law is still very much the future for the Chinese giant salamander. China's penalty for illegally hunting these creatures is very low and only comes to 50 Yuan (currency), yuan, or about US$6, which is less than one hundred times the black-market price. Establishments such as restaurants can charge up to US$250–US$400 per kilogram. A hunting tool known as a bow hook is one of the preferred methods used by hunters to catch the salamander. This hunting tool is made with a combination of bamboo and sharp hooks baited with frogs or smaller fish. This is used to capture the salamander and keep it alive. Some hunters use pesticides to kill the salamander. Farmers often poach wild salamanders to stock their breeding programs, while others are hunted as food. In May 2018, CNET reported that Chinese giant salamanders were being poached and eaten into extinction, after an extensive study found they were nearly extinct in the wild. In the study, the Zoological Society of London and the Kunming Institute of Zoology, Kunming Institute of Zoology in China studied sites in 16 provinces over four years. The researchers had been unable to confirm survival of wild salamanders at any of the 97 sites they surveyed. The study also brought up worries that commercial farms and conservation programs were crossbreeding what they described as five distinct species of Chinese giant salamanders. All the wild populations studied were found "critically depleted or extirpated" by the study. A related study found that some of the five distinct genetic lineages were probably already extinct in the wild.


Conservation efforts

To understand the conservation efforts in China, it is important to know something about the events of the several past hundred years of China's history relating to social attitudes, pressures on nature and natural resources, and the political ambition to safeguard the natural environment. Each of these are significant factors and determinants of conservation efforts. Up until the year 1700, China was a country that was rampant with land reclamations, growing land exploitation, and wars. These series of events led to a huge upsurge in the diminishing of the natural Biomass (ecology), biomass and as well as a reduction in spatial distribution of biotic resources. The significance of this situation was that this drastic dwindling of resources made the people of this region aware of the relationship between utilization and Conservation biology, conservation. From 1911 to 1949, China began to move into the direction of modern industry, urbanization, civil wars, and agriculture. This transition period brought with it the depletion and disappearance of various renewable resources, as well as the pollution of various biotopes. This lack of conservation eventually led to a deteriorating environment, which meant lower standards of living for the Chinese population. This is the point when both the government and the people of China came to the epiphany that the environment matters. It was not until 1956 that modern nature conservation efforts begin to develop. The Chinese reforms that preceded this new Chinese perspective on conservation were not only beneficial to the Chinese giant salamander, but all organisms that occupied the natural environment of China. There was a formation of a new administrative system for nature conservation, which came together in the late 1950s. This new structure was able to establish new regulations that aimed at being successful in educating the masses about the value and significance of nature conservation, promoting awareness on the present status of various species, as well as prohibiting anti-conservation efforts such as hunting and trading of protected species such as the Chinese giant salamander. Some examples would be the Environmental Protection Law of 1979, Regulation of Water and Soil Conservation of 1982, Forestry Law of 1985, as well as the Wildlife Conservation Law of 1988. It was during this time period that the Chinese giant salamander was categorized as a category II species. All these species are endangered because their population is declining or their species distribution, geographic distribution is becoming restricted. In the midst of all these conservation efforts, in the late 1970s, a program network of nature reserves was established in China. These reserves were established to uphold four major principles. * First, is to conserve typical ecosystems and to represent the biotic communities. * Second, the reserves are meant to secure rare,
endemic Endemism is the state of a species In biology Biology is the natural science that studies life and living organisms, including their anatomy, physical structure, Biochemistry, chemical processes, Molecular biology, molecular interact ...
, and valuable species, as well as their habitats or breeding locations. * Third, these reserves were developed to rescue and regenerate deteriorated or damaged natural ecosystems and habitats of special significance. * Finally, the reserves would be created in order to have sanctuaries in areas of special importance, such as seed forests, geological sections, glacial remains, watershed forest, etc. Many of these reservations were created for the overall protection of all endangered species of China and the conservation of the natural world they occupy. A few more reservations were made specifically with the idea of preserving Chinese giant salamander populations. Beginning in the 1980s, there have been more than 14 nature reserves established for the conservation of the Chinese giant salamander, such as the Zhangjiaje Giant Salamander Nature Reserve, Lushi Giant Salamander Nature Reserve, Qingyaoshan Giant Salamander Nature Reserve, Youyang Giant Salamander Nature Reserve, and the Taibai Giant Salamander Nature Reserve. Though many efforts have been put forward, very few regulations have actually been enforced. Due to lack of strong influential regulations and lack of funding, the conservation of the Chinese giant salamander has all but failed. They continue to have major decline in their populations due to human intervention of many different sorts. Even nature reserves continue to see diminution of populations. Many of the reserves suffer from the same issues, such as shortage of funding and personnel, poaching, development of tourism, etc. Few believe that even with the major losses already suffered, the situation can still be turned around through proper protection of the Chinese giant salamander habitats, nesting sites, prevention of pollution from surface runoff, banning of certain hunting methods, and an assessment of irrigation work with nature reserves. Some believe that there also need to be more surveys carried out that institutes the conservation status and demography of the salamander, as well as having a holistic view of the life history of this species. Others say that a public information campaign is needed to better educate local inhabitants. Construction has begun on the largest artificial breeding and protection base for the endangered giant salamander in China. The base in Jing'an County, in the eastern province of Jiangxi, will breed the amphibians for scientific research, the
traditional Chinese medicine#REDIRECT Traditional Chinese medicine {{Redirect category shell, 1= {{R from other capitalisation ...
industry and for exhibition in aquariums. Located in the Sanzhaolun Forest Park, the 10.83 million yuan (1.35 million U.S. dollars) project is intended to breed 60,000 giant salamanders annually when it is completed by the end of next year. The base, covering 10,000 square meters, would boost efforts to save the world's largest amphibian from extinction, said Li Xinfa, head of the Jing'an County Giant Salamander Research Center. The number of wild giant salamanders has declined rapidly due to their value as a source of traditional Chinese medicine ingredients and as food, and due to poaching, loss of habitat and pollution. It has been put on the list of the Convention on International Trade in Endangered Species, and it is under state protection in China. EDGE (Evolutionarily Distinct & Globally Endangered) aims to ensure the future of this salamander by helping to create an environmental education programme encouraging sustainable management of wild populations.


References

{{DEFAULTSORT:Chinese Giant Salamander Cryptobranchidae Amphibians of China Amphibians described in 1871 Traditional Chinese medicine Taxa named by Émile Blanchard Critically endangered fauna of Asia Species endangered by human consumption for medicinal or magical purposes Species endangered by use as food Species endangered by habitat loss Endemic fauna of China