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Tuesday, January 26, 2010

[ALOCHONA] Sea rise could spell end for Sundarban Tigers: WWF



Sea rise could spell end for Sundarban Tigers: WWF
 
Maruf Mallick
 
Falun, Sweden, 23 January (bdnews24.com) -- One of the world's largest tiger populations could disappear by the end of this century as rising sea levels caused by climate change destroy their habitat in the Sundarbans along the coast of Bangladesh, according to a new World Wildlife Fund (WWF)-led study published in the journal Climatic Change.

Tigers are among the world's most threatened species, with only an estimated 3,200 remaining in the wild, Swiss-based WWF, the worlds largest conservations organisation, said in a report on Friday.

WWF officials said the threats facing these Royal Bengal tigers and other iconic species around the world highlight the need for urgent international action to reduce greenhouse gas emissions. "If we don't take steps to address the impacts of climate change on the Sundarbans, the only way its tigers will survive this century is with scuba gear," said Colby Loucks, WWF-US deputy director of conservation science and the lead author of the study on Sea Level Rise and Tigers: Predicted Impacts to Bangladesh's Sundarbans Mangroves.

"Tigers are a highly adaptable species, thriving from the snowy forests of Russia to the tropical forests of Indonesia. "The projected sea level rise in the Sundarbans will likely outpace the tiger's ability to adapt."

An expected sea level rise of 28 cm above 2000 levels may cause the remaining tiger habitat in the Sundarbans to decline by 96 percent, pushing the total population to fewer than 20 breeding tigers, according to the study. Unless immediate action is taken, the Sundarbans, its wildlife and the natural resources that sustain millions of people may disappear within 50 to 90 years, the study states.

"The mangrove forest of the Bengal tiger now joins the sea-ice of the polar bear as one of the habitats most immediately threatened as global temperatures rise during the course of this century," said Keya Chatterjee, acting director of the WWF-US climate change program. "To avert an ecological catastrophe on a much larger scale, we must sharply reduce greenhouse gas emissions and prepare for the impacts of climate change we failed to avoid."

The Sundarbans, a UNESCO World Heritage Site shared by India and Bangladesh at the mouth of the Ganges River, is the world's largest single block of mangrove forest. Mangroves are found at the inter-tidal region between land and sea, and not only serve as breeding grounds for fish but help protect coastal regions from natural disasters such as cyclones, storm surges and wind damage.

Providing the habitat for between 250 and 400 tigers, the Sundarbans is also home to more than 50 reptile species, 120 commercial fish species, 300 bird species and 45 mammal species. While their exact numbers are unclear, the tigers living in the Sundarbans of India and Bangladesh may represent as many as 10 percent of all the remaining wild tigers worldwide.

Using the rates of sea level rise projected by the Intergovernmental Panel on Climate Change in its Fourth Assessment Report (2007), the study's authors wrote that a 28 cm sea level rise may be realized around 2070, at which point tigers will be unlikely to survive in the Sundarbans. However, recent research suggests that the seas may rise even more swiftly than what was predicted in the 2007 IPCC assessment.

In addition to climate change, the Sundarbans tigers, like other tiger populations around the world already face tremendous threats from poaching and habitat loss. Tiger ranges have decreased by 40 percent over the past decade, and tigers today occupy less than seven percent of their original range. Scientists fear that accelerating deforestation and rampant poaching could push some tiger populations to the same fate as their now-extinct Javan and Balinese relatives in other parts of Asia.

Tigers are poached for their highly prized skins and body parts, which are used in traditional Chinese medicine. The 2010 Year of the Tiger will mark an important year for conservation efforts to save wild tigers, with WWF continuing to play a vital role in implementing bold new strategies to save this magnificent Asian big cat.

Recommendations in the study include:

· Locally, governments and natural resource managers should take immediate steps to conserve and expand mangroves while preventing poaching and retaliatory killing of tigers.

· Regionally, neighboring countries should increase sediment delivery and freshwater flows to the coastal region to support agriculture and replenishment of the land;

· Globally, governments should take stronger action to limit greenhouse gas emissions;

"It's disheartening to imagine that the Sundarbans – which means 'beautiful forest' in Bengali – could be gone this century, along with its tigers," Loucks said. "We very much hope that in this, the Year of the Tiger, the world will focus on curtailing the immediate threats to these magnificent creatures and preparing for the long-term impacts of climate change."
 
Tigers in focus
 
Dhaka, Jan 25 (bdnews24.com) – Bangladesh is stepping up conservation efforts for the endangered Royal Bengal Tiger under an action plan that includes a new census of the Sundarban big cats, which like other tiger populations around the world face tremendous threats from poaching and habitat loss.

According to the last census in 2004, the Sundarbans—the largest unbroken mangrove forest in the world stretching 6,000 square kilometres along the coast of Bangladesh—is home to around 440 Royal Bengals, one of the last significant tiger populations in the wild. "Our tigers have to be protected for conservation of biodiversity in the Sundarbans and Bangladesh as a whole," state minister for forests Hassan Mahmud said on Monday as he inaugurated a Tiger Immobilization Training Programme at Bon Bhaban, the forest department headquarters in the capital.

The forest department, under its Bangladesh Tiger Action Plan (BTAP) 2009-2017, is jointly running the first ever immobilisation training with Wildlife Trust of Bangladesh (WTB) to ensure safe tranquillising procedures. The training will help foresters save tigers intruding into human localities where either humans or the tigers are too often killed, said officials. Mahmud also said 33 forest staff had already received training, for care and management of wild tigers, under the BTAP launched last October.

Tigers are among the world's most threatened species, with only an estimated few thousand remaining in the wild worldwide. A hundred years ago, there were around 100,000. Tiger ranges have decreased by 40 percent over the past decade alone, and Sundarbans tigers today occupy less than seven percent of their original range. "Massive public awareness has to be created and forest staff must be properly trained for successful conservation efforts," Mahmud said. "Nowhere in the world are there so many tigers in the wild. Bangladesh has a responsibility to safeguard them for the world."

The Sundarbans, a UNESCO World Heritage Site, extends across India as well as Bangladesh at the mouth of the Ganges River. The tigers living in the mangroves of India and Bangladesh may represent as many as 10 percent of all the remaining wild tigers worldwide, say conservationists.

India has just completed its census of tigers, from Jan 5-10, over its 4,000 sq km stretch of the Sundarbans. Bangladesh, meanwhile, is also competing for the Sundarbans to be included among the 'Seven Wonders of the Natural World' to aid global recognition for the importance of its tiger population and other wildlife. As well as tigers, the Sundarbans is home to more than 50 reptile species, 120 commercial fish species, 300 bird species and 45 mammal species.

Swiss-based World Wildlife Foundation, the world's largest conservation organisation, has said in a recent statement the threats facing the famous Royal Bengal Tigers highlight the need for urgent international action to save this magnificent Asian big cat and other iconic species around the world. Scientists fear that accelerating deforestation and rampant poaching could push Sundarbans tigers to the same fate as their now-extinct Javan and Balinese relatives in other parts of Asia. A WWF-led study, published earlier this month, said rising sea levels also now threaten the Royal Bengal Tiger's survival.

Forests secretary Mihir Kanti Majumder, Dhaka University professor and wildlife expert Anawarul Islam and John Lewis of London Zoo spoke among others at the inauguration of the new training programme, chaired by chief forest conservator Abul Motaleb.


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