Division head viper snake is a venomous snake venomous snake subfamily 1 species. Found only in China's Liaoning Province, Snake Island. Estimated existing 20,000. Length up to 800 mm. Body stout, head slightly triangular, with pit, eye oblique mouth with a dark brown eyebrows were thin lines, the lower edge of the _set_ with a very fine white-lined; footer tail on the back grayish brown, with a dark brown " x "-shaped spots. Scales back the middle trunk line 23, 150 ~ 164 abdominal scales, scales under the tail 32 to 47 pairs, orbital scales often two, infraorbital scales at the moment is basically square.
Snake Island venomous snake (gloydius shedaoensis): Chinese Common name: viper, attached bark, Agkistrodon saxatilis. Fame: chinese pit-vipers. Species names of people and years: (zhao, 1979). Distribution: endemic to mainland China, mainly distributed in the Snake Island in Liaoning Province, Dalian and Shenyang in the north near the city of Wafangdian Qianshan a small amount of the distribution.
Estimated number: 982 years of using mark-recapture method (Lim index method) to investigate, estimate there are about one snake million (9000 - 11500) (as Huang Mupeng), was reported in 1958 about fifty thousand ( Wu law). Obviously, the snake's existing volume has dropped, as we do not take effective measures in the near future, will face extinction.
To risk factors and the status quo: the decline of Snake Island viper main reasons: habitat destruction, a large number of trees destroyed by fire, water sources to reduce and capture a large number of successive years. Since the establishment of protected area management at the Yi Lai, strict stop the capture, in order to explore the effective protection and promotion of appropriate means of population growth in population on the basis of ecological studies also carried out to improve the ecological environment, increase supply of drinking water and food sources of birds and other tests, According to a sample survey, annual population growth in recent years, but the overall number of far from the original level.
Domestication and breeding status: building simulation Snake Park, adult and larvae have been kept in artificial conditions, winter survival and safety. As Snake Island snake eat small birds and rodents, do not eat fish, frogs and chicks, young snakes and snake into the artificial bait has not yet been exceeded, the current difficult for a lot of domestication and breeding.
Existing protection measures: Snake Island in 1980 as a national priority by the State Council approved the Nature Reserve, in 1981 the establishment of protected area management office. Dalian Municipal People's Government in 1983 issued a circular to strengthen management. Patrol aircraft equipped with a wheel, the island has observation stations, in addition to hibernation, the annual duty was stationed in the island, the daily management and observational studies.
Further protective measures should be: focus on enhancing the management, is strictly prohibited to capture, take drugs strictly, to prevent environmental pollution and ecological damage to the environment, to ensure the normal population growth. Improve the living conditions of the island, so that water and food supply is adequate and effective protection of the basic approach.
Conservation status: Currently, China has been listed as endangered red. |