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CHANGSHA/HARBIN, Feb. 12 (Xinhua) -- As Chinese people are embracing the arrival of the Year of Tiger on Saturday, zoologists are worried about the survival of South China Tigers as the endangered species are facing a serious problem of inbreeding.No traces of the tigers have been found in the last decade, they said.The number of captive South China tigers (Panthera tigris amoyenesis) rose to 92 in 2009 from 60 in 2007 but all the tigers were the offsprings of six wild South China tigers which were caught more than 40 years ago, said Deng Xuejian, a professor with the Department of Biology of Hunan Normal University, based in Changsha, capital of central China's Hunan Province."The inbreeding may lead to genetic freaks, low survival rates and poor physical makeup," Deng said.All the genes have come from two male and four female tigers, which had lead to highly identical genes in the offspring, Deng said."The situation may reduce the genetic diversity and cause degradation or even the extinction of the species," he said.The tigers would lose genetic diversity if their genes were too similar, said Ma Zaiyu, president of veterinary hospital of Changsha Zoo."The number of the members of a species should be at least 1,000 to maintain the stability of the species," Ma said.Zoologists estimated the number of wild South China tigers could have been less than 30 in the 1990s. The remaining wild tigers are presumed to live in the remote areas of Guangdong, Hunan, Fujian and Jiangxi provinces, Deng Xuejian said.Based on analysis of relevant date combining field investigation, Deng estimated the number of wild South China tigers could be less than 10.No traces of wild South China tigers were reported in Hunan in the last two years, said Zhou Shuhuai, director of wildlife protection section of the Hunan provincial forestry bureau."The number is limited and the tigers scatter in different areas, which make it difficult for natural breeding between wild tigers," said Huang Gongqing, a tiger expert at South China Tiger Breeding Base in Suzhou, a city of east China's Jiangsu Province."The extinction of the wild tigers will happen sooner or later," Huang warned.Some experts have said that there may be already no wild South China tigers. "However, we cannot know as the animal is very difficult to trace," Deng said.Ma Zaiyu said to avoid extinction of the species, more captive tigers should be bred, and some genes might be recovered when the population reaches 1,000, while Deng suggested continuous search for wild tigers to enrich the captive tigers' genes.The situation is much better for the Siberian tigers (panthera tigris altaica) in northeast China as the number of the wild ones is quite stable, experts said.The number maintains at around 20 in China, among which 10 to 14 are in Heilongjiang Province and eight to ten are in Jilin Province, said Sun Haiyi, deputy director of Heilongjiang Wildlife Institute"But no more young tigers under one year old have been discovered in the past two years. The reason might be the number of female tigers are less than the males and the animals are relatively isolated by the mountains," Sun said.China established a breeding base for the Siberian tigers in Heilongjiang in 1986 and the number of captive tigers has increased from eight to current more than 800, Sun said.Experts called for more efforts to protect the habitats of the tigers for the purpose of protection and re-wilding of the tigers.

BEIJING, March 1 (Xinhua) -- Chinese Vice Premier Hui Liangyu Monday urged local authorities to step up efforts to prevent forest and grassland fires as a severe drought put south China on a high fire alert.Authorities should beef up the supervision of fire sources, and respond scientifically to emergencies to curb major fires and casualties, and protect the public and forests and grassland, Hui said at a teleconference held by the State Council, or the Cabinet.A prolonged drought, which started last autumn, has hit southwest, south and parts of north China.According to the State Forestry Administration (SFA), from November to January, China reported 1,945 forest fires, which damaged 5,112 hectares of forests and killed two people.

BEIJING, Feb. 23 (Xinhua) -- China's Ministry of Public Security Tuesday urged police nationwide to take initiatives in cracking serious crime cases and solving social conflicts to ensure a safe World Expo in Shanghai.Vice Minister Huang Ming said police should seriously crack down on illegal activities, including illegal use of guns and explosives, kidnapping of children and women, gang-related crimes and online pornography.Police in Shanghai and its neighboring regions were asked to reinforce security measures and increase street patrols, and mobilize local residents to ensure a safe environment for the upcoming World Expo.Huang said the police should learn from Beijing's experience of successfully safeguarding the 2008 Beijing Olympic Games and the celebrations for the 60th anniversary of the founding of the People's Republic of China in 2009.Police were also asked to visit grassroot level communities and villages to find prominent problems and help relevant authorities settle disputes.Shanghai's neighboring provinces, Jiangsu, Zhejiang, Anhui, Jiangxi, Fujian, Shandong, Henan and Hubei, would reinforce security checks in air flights and trains, Huang said.Huang also urged the police to enforce the law in a reasonable and civilized manner and minimize disturbances to the public.The World Expo, to be hosted by China for the first time, will run from May 1 to Oct. 31. To date, at least 192 countries and 50 international organizations have confirmed their participation in the event that will present the latest advances of architecture and engineering worldwide.

NAIROBI, Feb. 11 (Xinhua) -- Somali pirates have released a fishing boat from Taiwan, China, and all of its crew held since April, a regional maritime official said Thursday."The Taiwanese ship was released this morning. The fishing vessel which has a crew of 30 from various Asian nationalities was seized in April last year," Andrew Mwangura, East Africa's coordinator of the Africa Seafarers Assistance Program, told Xinhua.The Win Far 161 was seized last April 4 near an island in the Seychelles, more than 1,100 kilometers off the coast of Somalia.The ship carried a crew of 30 -- 17 Filipinos, six Indonesians, five from the Chinese Mainland and two from Taiwan, China.Mwangura said 27 crew members were said to be safe, though a Chinese sailor and two from Indonesia died in captivity.The coordinator could not confirm whether a ransom was paid to secure the release of the 700-ton ship and crew.Piracy has been rampant off Somalia since the country slid into chaos after warlords toppled military dictator Mohamed Siad Barre in 1991.Somali pirates now hold at least seven ships and more than 160 crew members.The hijackings have prompted the international community to deploy security forces in the area to deter the pirates.

GUIYANG, Feb. 6 (Xinhua) -- The eight workers who were trapped Friday in a collapsed railway tunnel in southwestern Guizhou Province were rescued Saturday afternoon.Rescuers drilled a shaft leading to the trapped workers and took them out from the tunnel. The eight people are in good health conditions and can walk with the help of the rescuers.They were sent to hospital for medical examinations.The workers were constructing the second line of Liupanshui-Zhanyi section of the Guiyang-Kunming railway when the tunnel collapsed at 1:26 a.m. Friday, said Long Qiufang, secretary-general of the Liupanshui city government. A worker is rescued from the collapsed tunnel at the building site of the second line of Liupanshui-Zhanyi section of the Guiyang-Kunming railway near Liupanshui City in southwest China's Guizhou Province, Feb. 6, 2010.The 639-kilometer railway links Guiyang, capital of Guizhou, with Kunming, capital of southwestern Yunnan Province. It was built in the 1960s and was put into operation in Dec. 1970.  A worker is rescued from the collapsed tunnel at the building site of the second line of Liupanshui-Zhanyi section of the Guiyang-Kunming railway near Liupanshui City in southwest China's Guizhou Province, Feb. 6, 2010. Eight workers trapped in a collapsed tunnel along the Guiyang-Kunming railway line were rescued on Saturday