UWC Singapore to open green campus

Eco features at Tampines school will cut energy use by 25%
Jane Ng, Straits Times 21 Apr 08;

UNITED World College South-east Asia's second campus in Tampines will be an eco-friendly one, complete with solar panels, sky gardens and a rainwater tank.

The campus, to be ready in 2010, aims to save the Earth as well as money while teaching environmental lessons to its students, said college head Julian Whiteley.

The rainwater tank, for instance, will have a see-through pipe running from it, so students can watch rainwater being collected and filtered for use in the school's gardens.

The green features in the $300 million school for students aged five to 18 will cut energy consumption by 25 per cent, said Mr Whiteley.

Besides theatres, music studios, language and science laboratories as well as art rooms, the school will also have a section for children - with a treehouse, a pool and two playgrounds.

It will have one other feature no school here is known to have: A 50m-long tubular slide that can whoosh students from the second level down to the garden.

Mr Whiteley said the 'practical' design excludes slabs of granite, which are expensive, and full-length glass walls, which make air-conditioning systems work harder.

At 5.5ha, the campus will be about half the size of its Dover one.

It will, however, make up for its smaller land area with space-savers like an elevated soccer field and underground sports halls and carparks.

It will also have a 19-storey boarding house for foreign students here on scholarships.

The campus was planned to mop up demand from the growing number of expatriates here. It will take in 2,500 students eventually, compared to the 2,900 at its Dover campus.

Until the campus is ready, students will use an interim campus in Ang Mo Kio. It will start off with 420 pupils, from kindergarten to Grade Four, when it opens in August.

The rising number of expatriates - up from 798,000 in 2005 to 875,500 in 2006 - is putting a squeeze on international schools here.

Mr Whiteley said the average waiting time for a place at UWC is four years, but some parents make enquiries even before their children are born.


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Canada's polar bears in dire straits: WWF

Reuters 20 Apr 08;

Some of Canada's polar bear populations risk being wiped out within four decades because of climate change and human activity including hunting, the World Wide Fund For Nature warned Sunday.

Canada, whose frozen north is home to two-thirds of all polar bears, is contributing to the creatures' decline by failing to take action to curb its emissions of greenhouse gases, WWF-Canada official Peter Ewins said.

"There is rapidly mounting evidence that many polar bear populations are in crisis as a result of sea-ice habitat loss, over-hunting and industrial development pressures," said Ewins, head of species conservation at WWF-Canada.

"Without strong leadership from the prime minister (Stephen Harper) to change our outdated approach to how we manage our natural resources, some polar bear populations will become extinct by 2050," he warned in a press release.

The WWF statement was released as the Committee on the Status of Endangered Wildlife in Canada prepares to issue recommendations to the Harper government on Friday this week.

Polar bears' habitat on Arctic sea ice will continue to melt without an "aggressive plan" by Harper's government to reduce emissions, conserve energy and develop renewable energy, the environmental group said.

Over-hunting in the Nunavut and Greenland regions has contributed to a "massive" decline of 30 percent in the Baffin Bay polar bear population in the past 10 years, it said.

The group also noted the habitat of polar bears and whales in the Beaufort Sea is set to be sold off for oil and gas exploration on June 2, without "proper resource planning that would protect such sensitive wildlife habitats."

"Research is showing that increasing numbers of Beaufort Sea polar bears are starving and walking all the way to Russia, or far inland, in search of food," Ewins said.

Increasing numbers of the bears are being killed as they forage wider for food and come into contact with human settlements.

An emaciated mother bear and her two cubs were shot dead by Canadian police in early April at the community of Deline in the Northwest Territories, about 100 kilometers (60 miles) south of the Arctic Circle.


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Oil running out as prime energy source: world poll

Deborah Zabarenko, Reuters 20 Apr 08;

WASHINGTON (Reuters) - Most people believe oil is running out and governments need to find another fuel, but Americans are alone in thinking their leaders are out of touch with reality on this issue, an international poll said on Sunday.

On average, 70 percent of respondents in 15 countries and the Palestinian territories said they thought oil supplies had peaked. Only 22 percent of the nearly 15,000 respondents in nations ranging from China to Mexico believed enough new oil would be found to keep it a primary fuel source.

"What's most striking is there's such a widespread consensus around the world that oil is running out and governments need to make a real effort to find new sources of energy," said Steven Kull, director of WorldPublicOpinion.org, a global research organization that conducted the poll.

Concerns over climate change, which is spurred by emissions from fossil fuels including oil, also were a factor among respondents, Kull said.

The current tightening of the oil market is not temporary but will continue and the price of oil will rise substantially, most respondents said.

"They think it's just going to keep going higher and a fundamental adaptation is necessary," Kull said in a telephone interview.

In the United States, the world's biggest oil consumer and among the biggest emitters of climate-warming pollution from fossil fuel use, 76 percent of respondents said oil is running out, but most believed the U.S. government mistakenly assumes there would be enough to keep oil a main source of fuel.

U.S. GOVERNMENT "NOT FACING REALITY"

"Americans perceive that the government is not facing reality," Kull said.

The United States is alone among major industrialized nations in rejecting the Kyoto Protocol, which aims to limit greenhouse gas emissions that exacerbate global warming.

Last week, President George W. Bush said U.S. greenhouse emissions, especially carbon dioxide spewed by the burning of fossil fuels like oil, would stop growing by 2025 but gave no details on how this would come about.

The announcement drew sharp criticism from environmental groups. Others pointed out this means emissions will continue to grow for the next 17 years.

Only in Nigeria did a majority -- 53 percent -- believe enough new oil would be found to keep it a primary energy source, a reflection of its status as a major oil exporter and member of OPEC.

The poll was conducted in China, India, the United States, Indonesia, Nigeria, Russia, Mexico, Britain, France, Iran, Azerbaijan, Ukraine, Egypt, Turkey, South Korea and the Palestinian territories.

The margin of error varied from country to country, ranging from plus or minus 3 percentage points to plus or minus 4.5 percentage points, Kull said.

WorldPublicOpinion.org involves research centers around the world, and the locations of these centers determined which countries were included in the poll. Kull noted that the poll included countries that make up 58 percent of the global population.

The project is managed by the Program on International Policy Attitudes at the University of Maryland.

(Editing by Xavier Briand)


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Biofuels won't solve world energy problem: Shell

Alex Lawler, Reuters 20 Apr 08;

ROME (Reuters) - Biofuels will not solve the world's energy problem, the chief executive of Royal Dutch Shell said on Sunday, amid growing criticism of their environmental and social benefits.

The remarks follow protests in Brazil and Europe against fuels derived from food crops. Food shortages and rising costs have set off rioting and protests in countries including Haiti, Cameroon, Niger and Indonesia.

"The essential point of biofuels is over time they will play a role," Jeroen van der Veer, chief executive of Royal Dutch Shell, told reporters on the sidelines of the International Energy Forum. "But there are high expectations what role they will play in the short term."

The oil minister for Qatar, a member of the Organization of the Petroleum Exporting Countries, had harsher words to say about biofuels at the energy forum, a gathering of producers and consumers.

"Now the world is facing a shortage of food," Qatar's Abdullah al-Attiyah said, answering a question at a news conference.

"I don't think we should blame oil, we should blame biofuels."

UNINTENDED CONSEQUENCES

Biofuels are set to play a growing role. The European Union agreed last year to get 10 percent of all transport fuel from biofuels by 2020 to help fight climate change.

But concern over meeting the biofuels targets has fuelled fears that sky-high food prices may rise even further if fertile arable land in Europe is turned over to growing "energy crops".

First-generation biofuels usually come from food crops such as wheat, maize, sugar or vegetable oils. They need energy-intensive inputs like fertilizer, which make it harder to cut emissions contributing to climate change.

Second-generation biofuels would use non-food products such as straw and waste lumber. So far, their production has been mostly experimental.

"Biofuels are all about how you develop them without unintended consequences. It is not only the competition with food, it is also the competition for sweet water in the world," Shell's Van der Veer said.

An official from the International Energy Agency also said the impact of biofuels should have been forseen.

"Maybe we should have anticipated them better," the IEA's deputy executive director, William Ramsay, said.

"But when you have a combination of things happening at the same time -- increasing demand for energy-intensive food, terrific droughts, things like that -- then add to that the competition in certain markets for food and fuel, the preconditions are there."

(Additional reporting by Simon Webb)

Growing world needs every form of energy: Shell
Reuters 20 Apr 08;

ROME (Reuters) - The world will need every form of energy available -- from coal to biofuels -- to keep pace with a booming population, the chief executive of Royal Dutch Shell said on Sunday.

Jeroen van der Veer also said record oil prices, which hit $117 a barrel on Friday, had yet to curb the thirst for fuel.

"... Despite high prices, demand is not dropping, there is only slower growth. Easy oil and easy gas cannot supply all that surge in demand," he told reporters on the sidelines of the International Energy Forum.

"So it is not a matter of choice, do we do coal, or oil, or nuclear? The world will need everything, including biofuels. You name it."

Costly oil is starting to erode some demand in top energy consumer the United States, where the price of gasoline has shot beyond $3 a gallon.

But so far, consumers in emerging economies such as India and China have been shielded by subsidized fuel prices.

"We had expected maybe a bit more elasticity with the oil price (and demand). But it may come with a delay," said van der Veer.

"Because certain countries, that are pretty large have subsidies -- like India, like China. So you are still to have a reaction."


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Sick turtles, sick people?

Carol Matroo, Trinidad and Tobago Newsday 20 Apr 08;

A green turtle (Chelonia Mydas) that was found last week and diagnosed with cancerous tumours has raised a red flag of concern for the doctors at the School of Veterinary Medicine (SVM).

While being very cautious with claiming the possible implications of the tumors, the doctors are advising that the tumours may be indicative of the increasing pollution of the environment and may signal a threat to the turtles, and, perhaps ultimately, to human beings.

“We don’t want to be alarmists,” says Professor John Cooper of the SVM. “We are conservationists, but we want to do it in a scientific way. I am not saying this sign on one turtle is a major problem, but we would be foolish not to take notice of it. It’s a bit like smoking and lung cancer 40 years ago. We knew there was a link, but we weren’t really sure. Now we understand it absolutely,” Cooper said.

Cooper said there was no evidence right now that the disease could be transferred to human beings. “We think it’s unlikely. This is almost certainly a turtle cancer, but in this day and age of AIDS and malnourishment, you never know...We just have to assume there is the very, very slight possibility, but I think it is very slight,” he said.

Green turtles are found throughout the world, especially in the tropical and sub-tropical seas, with two distinct populations in the Atlantic and Pacific Oceans. These reptiles, which are considered a delicacy by some, are green because of the fat underneath their shells. It is illegal in most countries to collect, harm or kill these turtles.

Many countries have implemented various laws and ordinances to protect individual turtles and turtle nesting areas. However, the turtle population is still in danger as, in some countries, turtles are still hunted for their flesh and eggs. Pollution indirectly harms the turtles, and many die as a result of being caught in fishermen’s nets where they drown. Now the turtles face a renewed danger from the wart-like cancer known as fibropapillomatosis (FP) which has resurfaced some 70 years since first being reported in the world. The case in Trinidad involves a diseased turtle found at Chaguaramas last month. The turtle is about 30 years old and is said to be the first recorded case of the disease in this country. FP has also been found in Malaysia, the Far East and the United States.

Speaking about the local turtle Prof Cooper said, “When the turtle was found it was obvious it was dying. It was brought to us at Mt Hope. FP is an unpleasant disease, and it does look like warts, but instead of being just simple warts like we might get or cattle might get, these are wart-like tumours, actual cancer.”

He said the cancer is contagious and spreads from one turtle to another and even if a turtle looked fine on the outside, it could be infected on the inside. “It is a malignant tumor that spreads from one place to another. It is a painful disease because the external ones can cause pressure on the eyes so the turtles can’t see properly, on the flippers, on the muscles so the turtle can’t swim properly, so it is a little bit like a rowing boat going around in circles.

“This is a spectacular disease. It’s very distressing for the turtle because it can’t see properly and if the cancer gets inside then it starts to destroy the liver, lungs... it’s like a human cancer. The animal was so thin and filled with fluid inside...it will not die directly of the cancer, but of the weakness.

“They can easily get caught up in fishermen’s nets, or they get killed by someone. It makes them very, very vulnerable to the ocean. We know it’s caused by a virus and the recent thinking is that it has probably been around for millions of years; turtles have been around for 150 million years,” the vet said.

Cooper said it was believed that there had been a good balance between the virus and the turtles, but in recent years, the resistance of the turtles had decreased. He added that there was some indication that more turtles were getting this disease because of pollution of the sea which compromised their immune system.

“If you put on a map of the world everywhere this disease has been reported, a vast majority of them is where there is effluent going out into the sea. You’ll find them along the coast of Florida, California, West Africa, the Far East and places that are close to new developments and factories.” Cooper said more people needed to know and understand this disease because it could be an early warning system.

“We can say it is the chemicals, but as a scientist I have to say that there are more people in those areas, so perhaps the turtles are more frequently spotted, but there has been research work on captive turtles spreading the virus and it has shown that the turtles had been debilitated because they had been exposed to chemicals. We know there have been cases in the Caribbean, but there are no records of them being in Trinidad waters. To be honest, it probably has been here, but people probably haven’t noticed,” he said.

The professor said unlike the leatherback turtles, not much research has been done on the green turtles, which was why the School of Veterinary Medicine was so interested in the latest case.

“This disease has drawn our attention to the fact that we should be monitoring all the turtles on our beaches, not only the leatherback because they are so spectacular,” Cooper said. He said it was found that while other species of turtles could get FP, this did not include the leatherback turtles, which were thought to be possibly resistant to the disease.

“Even that’s important because if the leatherback is resistant, why is it resistant? It could be that it’s got something in its blood or that it’s got immune cells to protect it. By doing our studies we may not only be able to find out why the disease is so bad in the green turtles, but also why the leatherback, which is related, is resistant,” Cooper said.

He said while they were only looking at this one turtle, it nevertheless might be an indicator of pollution here or it might be showing something about the other side of the Atlantic or Africa. “Who knows? We don’t even know where this turtle came from. The way we see it is that the disease has only just resurfaced after 70 years or people are now beginning to notice it.

“What was happening 70 years ago? Industrialization was going on, the Second World War happened, there were ships out in the sea, oil discoveries...We could say, and there is no proof, that this disease is associated with our seas getting more and more polluted, so there may be chemicals in the seas now that are making the turtles less able to resist the virus, and thus easier for the virus to spread,” Cooper said.


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Catching corals' spectacular moment

Andrew Luck-Baker, BBC Radio 4 20 Apr 08

The coral reefs in the tropical western Pacific are at the brink of one of the most spectacular and significant nights in their annual life cycle.

By the light of April's full moon on Sunday or, quite likely a night or two after, corals will be mating en masse.

Along the length of the island archipelago that makes up the Republic of Palau, millions of coral colonies will simultaneously release billion upon billion of eggs and sperm into the dark waters.

An hour or so after sunset, each spawning coral will discharge showers of sex cells, packaged in orange and pink blobs.

They will rise to the surface in such huge numbers that they may form oily slicks metres long.

If the sea conditions are right, spawn slicks can coalesce to be large enough to be visible from space.

Depressing need

Once on the surface, the packages burst open, liberating eggs and sperm for fertilisation.

Countless free-swimming coral larvae then develop and three or four days later, a few will have survived long enough to make it to the sea bed.

There they attach to a suitable hard surface and develop into single baby coral polyps. The next generation of corals on the reefs will be launched.

A team of marine biologists from Australia, Britain and the Philippines has come to Palau to take advantage of this wonder of nature in the cause of coral reef restoration.

The scientists are here to investigate the potential of an experimental technique known as coral seeding - in other words, collecting some of the spawn from mass mating events and using it to promote the growth of new corals on reefs in need of rescue.

The reefs around Palau are in good shape but elsewhere throughout the tropical world, many coral ecosystems are in a parlous state.

Plenty spare

Pollution, over-fishing and coral bleaching events, which are caused by marine heat waves, have reduced the amount of coral to the point where these naturally bio-diverse habitats are at varying degrees of degradation.

Many are nearing ecological collapse - some have gone forever, already.

However, many reefs might be salvageable if they are first protected from pollution and overexploitation, and then are seeded with some surplus spawn from more vibrant reefs.

Most of the eggs and larvae from a mass spawning event are eaten or die before they get an anchor hold on the sea bed, so there is plenty of spawn to share around.

In the coming experiment on Palau, the scientists will not be using coral spawn produced on the open reefs.

Partly for practical reasons, they will harvest their spawn under more controllable conditions at the laboratory of the Palau International Coral Reef Center.

In the lab

On Saturday, I joined them on a trip to collect 10 dinner-plate-sized coral colonies from Luke's reef about 20 minutes speed-boat-ride from the Reef Center.

James Guest, from the University of Newcastle, UK, and Maria Vanessa Baria from the University of the Philippines dived to the sea bed, armed with hammers and chisels.

They were after a particular species of branching coral which forms large tables or shelves as it grows. It is this type which is one of the most abundant and most important reef builders.

It takes a few taps at the stony stalk base of each colony to break them free. Waiting on the boat to receive the corals was Andrew Heyward of the Australian Institute for Marine Science - one of the first biologists to describe the phenomenon of coral mass spawning in the 1980s.

The colonies were put straight into tubs of sea water, and once the tenth was on board, we headed back at a high rate of knots to the Reef Center.

Back at the Center, the coral were transferred with speed to larger tanks, filled with constantly refreshed seawater.

Setting up home

Now there's a lull before the spawn. The main event could happen Sunday or Monday or Tuesday night (Palau time). And some species will synchronously spawn the day after others.

When the captive corals in the lab release their eggs and sperm, the contained spawn will be transferred to children's paddling pools floating in the sea next to the lab.

Over the following few days, the researchers will check the developing larvae to see how many are mature enough to settle down and become fixed baby coral polyps.

When sufficient numbers are good to go, the team will take the batch of larvae back to the reef and pump them over areas of potential colonisation.

The new homes for the larvae are artificial reef balls placed there specially for the purpose. They are domes of limestone concrete about a one metre wide and high.

Before the larva can be introduced, the reef balls will have to be covered so the larvae don't just float away.

Big question

So the team will dive the five metres to the sea bed and erect two-man camping tents made of fine mesh over each artificial reef structure.

The baby corals will travel from the boat through the zipped door of the tent via a hose pipe. Andrew Heyward says the aim of this experiment is to be "low tech or no tech".

He feels this approach is vital if the technique of coral seeding is ever to be used on any scale in developing countries.

Twenty-four-hours later, the team will check to see how many of their "seeds" have settled by removing small tiles they've placed on the reef balls. They will do that again in a few months and after a year.

Each time they will compare the number of young corals with those on tiles from control balls which would have been settled by larvae born in the mass spawning on the reef.

Andrew Heyward points out that loading the dice in the larvae's favour before they settle is only part of the issue over whether coral seeding will work to restore reefs.

"If you boost the number of larval corals settling on a coral reef, so what? Does it make any difference to the longer term compared to an area where you did nothing?"

The answer will emerge in the next 12 months following this week's frenzy of mass reproduction on the reefs of Palau.

Andrew Luck-Baker is preparing a Frontiers programme to be broadcast on BBC Radio 4 on Monday 26 May


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Youths mobilise in name of tradition to rescue Cyprus donkeys

Haro Chakmakjian, Yahoo News 20 Apr 08;

It's the butt of jokes and the source of choice curses, but the donkey is an integral part of Mediterranean culture, and friends on Cyprus are working to protect one of the world's last wild colonies from extinction.

Using a Facebook group and email, hundreds of young Turkish Cypriots and a handful of Greek Cypriots have mobilised to "Save the Cyprus Donkey" after 10 of the rare brown animals were found shot dead at the end of March.

"The enemy of nature is the enemy of humans," read a banner unfurled by a small group of demonstrators at a sandy beach near Rizokarpaso village on the panhandle of Cyprus that has for decades been a donkey sanctuary.

Deniz Direkci, a 20-year-old primary school employee who addressed the rally, said the main suspects in the unsolved donkey deaths were farmers angered by crop damage.

But fingers have also been pointed at hunters and developers eager to exploit the Karpas peninsula, one of the last unspoilt parts of a holiday island where construction is booming on both sides of a UN-patrolled Green Line.

The phenomenon is mirrored on the northwest coast's Akamas peninsula, where plans for a national park are under threat and farmers have shot a number of moufflons, a protected wild sheep.

As a small group of donkeys kept their distance on a hillside above the dunes, Aysun Yucel, a 19-year-old law student from north Nicosia, was saddened and baffled by the killings.

"It's so cruel ... We used to come here for summer vacations and you would hear the donkeys passing by your bungalow as you sleep. Now it's sad: that doesn't happen any more."

Begun Gulderem, 20, a Turk who has lived in Cyprus for the past decade, works for a construction firm.

"We don't know why they are killing donkeys, or why people are burning forests ... I want to know the truth," she said.

Ironically, the Karpas donkey colony is a legacy of the 1974 Turkish invasion of the island's northern third.

The vast majority of the area's Greek Cypriot farmers fled south during the fighting, abandoning their animals.

And as agriculture declined amid the growing urbanisation, the "liberated" donkeys were replaced by tractors, pickups and SUVs.

A 2003 study found that about 800 donkeys were roaming the olive orchards and wheat fields, and along the beaches of the rugged Karpas landscape.

As some 15 vehicles with peaceful eco-warriors formed a funeral procession to drive 50 kilometres (30 miles) to the site of the demonstration, farmers on tractors looked on bemused and little girls along the roadside sold posies of wild flowers to the mourners.

Police were out in force, preventing non-Turkish Cypriots from playing any vocal part in the rally.

-- 'We are losing our culture, our nature. It's time to wake up!' --

Writer and poet Jenan Selchuk explained over lunch in a Rizokarpaso taverna that it was not just about donkeys, it was about preserving traditions and a way of life.

"They are bringing big electricity lines to the area, over which we have also held protests. They have development plans for luxury villas rather than any national park idea. As for the donkeys, they are seen as an obstacle to progress," he said.

Antique dealer Tanju Nasir said the authorities were short-sighted in failing to protect the donkey "which is a symbol of the island ... and a tourism draw," even as the local mayor tried to assure the environmentalists that every measure was being taken to find the killers.

The "eshek" (Turkish for donkey) draws both affection and ridicule from locals and foreigners alike in the as-yet unspoilt Karpas.

Before the advent of money-spinning tourism and potato exports, the donkeys and mules of Cyprus were renowned throughout the Middle East for their size, strength and endurance.

They were also valuable to the island's British colonial masters during both world wars.

Cyprus donkeys were exported throughout the region for cross-breeding with horses to produce a mighty strain of mule. According to the 1931 Handbook of Cyprus, "the Cyprus donkeys are of good quality being able to carry a load from 168 pounds (75 kilos) to 224 pounds and over."

Only half in jest, Tony Angastiniotis, a Greek documentary film-maker, says an intercommunal effort to preserve an ancient way of life could even help resolve the island's decades-old division.

"Maybe the donkeys will be the way to peace. They are the only true Cypriots anyway," he said.

Ediz Ismail-Eddie, a Turkish Cypriot living in Australia, joins in a lively debate on Facebook.

"This is murder, all Cypriots should do something about this problem, Greek/Turkish, it doesn't matter. We should protect this island together. We are losing our culture, our nature. It's time to wake up!"

Iraqi poet and philosopher Raad Abdul Jawad also bemoans the fate of donkeys abandoned to their fate along the Turkish-Iraqi border and in mountains between Ras al-Khaimah and Fujairah in the United Arab Emirates.

He warns they are growing "rarer and rarer", having been overtaken by modern life.

Yet "the donkey held the fundamental key to building civilisation, carrying water and food, and construction materials, whereas the horse was used for killing," he says.

Often referred to jokingly as "the sheikh of donkeys," Abdul Jawad aims to raise funds to build a regional organisation to protect the species. The idea would be to build on the success of an association in Egypt and groups such as the Donkey Party in Iraqi Kurdistan.

"But it will not be easy; too many people laugh at the idea," he conceded.


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Captive tigers 'may save species'

BBC News 20 Apr 08;

Many tigers held in captivity have "pure-bred ancestry" and could play a key role in the survival of diminishing wild populations, a study suggests.

A team using a new method for assessing the genetic ancestry of tigers found that a number of "generic" animals were actually pure-bred subspecies.

Writing in Current Biology, they added that these tigers also had genomic diversity no longer found in the wild.

Current estimates suggest that only about 3,000 tigers remain in the wild.

In contrast, the international team of researchers noted, the global population of captive tigers numbered between 15,000 to 20,000.

But they highlighted that only about 1,000 of these were managed within co-ordinated breeding programmes that aimed to preserve the animals' genetic variability.

They wrote: "As of 2007, there are approximately 421 Amur, 295 Sumatran, 72 South China, 198 Bengal, 14 Indochinese and 113 Malayan tigers in captivity as recorded in regional and international zoo studbooks.

"Debates persist over the role of captive tigers in conservation efforts, whether managed captive populations serve as adequate genetic reservoirs for the natural populations, and whether the generic tigers have conservation value," they observed.

"The most direct way to address the dilemma is through a thorough understanding of the genetic ancestry... and the level of genetic diversity of captive tigers relative to wild populations."

Conservation boost

By analysing 20 years' worth of DNA samples from 105 captive tigers, and using data from tigers with known ancestry as a reference, the team was able to identify genetic patterns that would suggest a match with one of the pure-bred subspecies.



"Assessment of 'verified subspecies ancestry' (VSA) offers a powerful tool," explained co-author Dr Shu-Jin Luo, from the US National Cancer Institute.

"If applied to tigers of uncertain background, it may considerably increase the number of pure-bred tigers suitable for conservation management," she added.

Of the 105 animals studied, the researchers identified 49 individuals that belonged to one of the pure-bred subspecies.

However, they suspected that the study overestimated the proportion of pure-breds in the captive population because 43 of the tigers tested were already enrolled in established breeding programmes.

But they added that 14 of the 62 un-enrolled animals were deemed VSA: "If [up to 23%] of the 15,000 existing captive tigers would prove to be VSA, the number of tigers with pure subspecies heritage available for conservation would considerably increase.

"Also, an important fraction of captive tigers retain genetic diversity unreported, and perhaps absent, in the wild populations.

The team concluded that their findings suggested that a comprehensive programme to identify captive VSA tigers could help secure the long-term survival of the wild population.

"Their potential for inclusion into comprehensive, integrated in-situ and ex-situ management plans could significantly increase population sizes and help maintain genetic variability and population viability of this iconoclastic species."

Captive Tigers Harbor Rare "Purebred" Genes
Susan Brown, National Geographic News 18 Apr 08;

Nearly half of tested captive tigers are "purebred" members of an endangered subspecies, raising the possibility they could bolster conservation efforts, a new genetic analysis suggests.

Similar screening of some of the thousands of tigers with unknown heritage held on farms and by private owners would considerably increase the number of animals useful for captive breeding programs, the scientists say.

The news comes at a dire time for wild tigers. As few as 3,000 individuals remain where more than 100,000 roamed just a century ago. Three of the eight subspecies have become extinct, and a fourth, the South China tiger, persists only in zoos.

The number of captive tigers, on the other hand, has boomed. Zoos, farms, circuses, and private owners hold an estimated 15,000 to 20,000 tigers. Only a small fraction of these are part of breeding programs oriented toward conservation.

"The captive population of these wild animals has been justified based on the principle that they are the genetic representation of their natural counterparts," said study leader Shu-Jin Luo, who studies genetic variation at the National Cancer Institute in Frederick, Maryland.

"They can act as insurance against extinction in the wild."

Genes Match Geography

But many owners have no knowledge of their cats' ancestry.

To tease apart their heritage, Luo and her colleagues developed a test based on variations in 30 locations on the tiger genome that had originally been identified in domestic cats.

In an earlier study, Luo and her colleagues found that they could separate wild tigers into groups that corresponded to the recognized subspecies based on how many versions of these genetic markers the animals shared.

In the new study, the scientists screened DNA samples from 104 captive tigers living in 14 different countries. Of those, 49 could be confidently assigned to a particular subspecies, they report in Current Biology today.

"These are fairly closely related lineages that they're trying to sort out," said Michael Russello, a conservation geneticist at the University of British Columbia in Kelowna who was not involved in the study.

"I think it is remarkable that they were able to find individuals from unmanaged populations that actually are purebreds of a given subspecies."

Genetic Surprises

The numbers of purebred tigers the researchers found likely overestimate the proportion of unmanaged animals with pure lineages, because many of the owners who sent samples to the team had some idea of their tiger's ancestry.

Of the 50 tigers without any pedigree, 7 could be assigned to a particular lineage based on the new genetic test.

Luo thinks that 15 to 23 percent of tigers not part of conservation breeding programs are likely to be potentially useful for preserving genetic variation unique to endangered subspecies.

Given the size of the captive population, that would mean thousands of additional useful animals.

The test can also reveal mixed ancestry. Owners of 11 tigers who thought they had purebreds turned out to own mutts instead.

"It's extremely important to know those individuals that have a hybrid origin," Russello said. Those animals should be excluded from breeding programs.

In addition, the researchers found that the captive tigers harbored at least 46 new genetic patterns that have not been found in wild animals so far.

Some of these occurred only in mixed-lineage tigers, which are currently thrown out of breeding programs when discovered.

While the findings come as welcome news, most conservationists agree that breeding programs are a last-ditch resort and that efforts should focus on protecting existing wild populations.

Tigers once ranged from the Indian subcontinent to Siberia.

Today that swath has been reduced to small remnant habitats, often depleted of prey.

"We are not at that stage where we are looking to reintroduce tigers from captive populations," said Mahendra Shrestha, who directs the Save the Tiger program based in Washington, D.C.

"The main challenge we are facing now is providing good quality habitat."


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Exposed: the great GM crops myth

Major new study shows that modified soya produces 10 per cent less food than its conventional equivalent
Geoffrey Lean, The Independent 20 Apr 08;

Genetic modification actually cuts the productivity of crops, an authoritative new study shows, undermining repeated claims that a switch to the controversial technology is needed to solve the growing world food crisis.

The study – carried out over the past three years at the University of Kansas in the US grain belt – has found that GM soya produces about 10 per cent less food than its conventional equivalent, contradicting assertions by advocates of the technology that it increases yields.

Professor Barney Gordon, of the university's department of agronomy, said he started the research – reported in the journal Better Crops – because many farmers who had changed over to the GM crop had "noticed that yields are not as high as expected even under optimal conditions". He added: "People were asking the question 'how come I don't get as high a yield as I used to?'"

He grew a Monsanto GM soybean and an almost identical conventional variety in the same field. The modified crop produced only 70 bushels of grain per acre, compared with 77 bushels from the non-GM one.

The GM crop – engineered to resist Monsanto's own weedkiller, Roundup – recovered only when he added extra manganese, leading to suggestions that the modification hindered the crop's take-up of the essential element from the soil. Even with the addition it brought the GM soya's yield to equal that of the conventional one, rather than surpassing it.

The new study confirms earlier research at the University of Nebraska, which found that another Monsanto GM soya produced 6 per cent less than its closest conventional relative, and 11 per cent less than the best non-GM soya available.

The Nebraska study suggested that two factors are at work. First, it takes time to modify a plant and, while this is being done, better conventional ones are being developed. This is acknowledged even by the fervently pro-GM US Department of Agriculture, which has admitted that the time lag could lead to a "decrease" in yields.

But the fact that GM crops did worse than their near-identical non-GM counterparts suggest that a second factor is also at work, and that the very process of modification depresses productivity. The new Kansas study both confirms this and suggests how it is happening.

A similar situation seems to have happened with GM cotton in the US, where the total US crop declined even as GM technology took over. (See graphic above.)

Monsanto said yesterday that it was surprised by the extent of the decline found by the Kansas study, but not by the fact that the yields had dropped. It said that the soya had not been engineered to increase yields, and that it was now developing one that would.

Critics doubt whether the company will achieve this, saying that it requires more complex modification. And Lester Brown, president of the Earth Policy Institute in Washington – and who was one of the first to predict the current food crisis – said that the physiology of plants was now reaching the limits of the productivity that could be achieved.

A former champion crop grower himself, he drew the comparison with human runners. Since Roger Bannister ran the first four-minute mile more than 50 years ago, the best time has improved only modestly . "Despite all the advances in training, no one contemplates a three-minute mile."

Last week the biggest study of its kind ever conducted – the International Assessment of Agricultural Science and Technology for Development – concluded that GM was not the answer to world hunger.

Professor Bob Watson, the director of the study and chief scientist at the Department for Environment, Food and Rural Affairs, when asked if GM could solve world hunger, said: "The simple answer is no."


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Green funerals make for eco-exits

Regan McTarsney, Associated Press Yahoo News 20 Apr 08;

It's no longer enough to live a greener life — now people are being encouraged to be environmentally friendly when they leave the Earth too.

Cardboard coffins, clothes sewn from natural fibers, a burial plot in a natural setting. Green funerals attempt to be eco-friendly at every stage.

"People are trying to think about what's the best way to live and with that, what's the best way to die," said Roslyn Cassidy, a funeral director for Green Endings, which provides eco-friendly funerals.

Britain has been a world leader in eco-friendly funerals for years and a source of green burial products and ideas for countries like the United States, where the trend is just starting to catch on. Over the weekend in London, those in the business showcased their products and services at the Natural Death Center's Green Funeral Exhibition.

Some may expect green funerals to be as cheap as a do-it-yourself project, while others might brace for price hikes similar to those fair trade food.

But, funeral directors say green funerals — like any — run the gamut.

"It's about choice, not price," said Fran Hall, marketing director for Epping Forest Burial Park.

For a concept aimed at saving the Earth by going back to basics, an eco-funeral can be more complicated than it sounds. The Natural Death Center provides a handbook that suggests environmental targets for cemeteries.

"You can take any funeral and make it greener," said Michael Jarvis, the center's director.

In a green funeral, bodies are not embalmed and are dressed in pure fiber clothes. Green campaigners say refrigeration or dry ice is a good alternative to formaldehyde, which can seep into the water system.

Biodegradable coffins also differ from the traditional mahogany. Coffins on display included one made from wicker and decorated with flowers.

One visitor, Linda McDowall, admired another coffin bundled in a beige, leaf-adorned felt shroud, saying it looked comfortable.

"Cozy and warm are not words you associate with death," said McDowall, a 48-year-old German and French translator.

Cardboard coffins — which are as thick as their wooden counterparts — can be decorated by family and biodegrade within three months.

"The trouble is, they are a bit ungainly to use," said Oakfield Wood burial ground director Oliver Peacock. "They're not terribly easy to handle and if it's wet, they don't look their best either."

Particular care is taken in how coffins are buried at eco-friendly graveyards like Oakfield Wood, Peacock said.

The cemetery was a pasture when it opened in 1995. It is now speckled with more than 1,600 trees that mark plots along with a wooden plaque.

Marble tombstones are frowned upon. Jeremy Smite, a funeral director at Green Endings, notes that shipping and mining produce carbon and that marble is not a renewable resource.

For cremations — which account for 70 percent of British funerals — a person's ashes and the remains of the eco-friendly coffin are placed in bamboo, glass or ceramic urns.

New legislation in Britain requires reductions in the mercury content of plastics and treatments used in coffins starting in 2010. All biodegradable coffins meet the new standards.

Cassidy said small details are important for green funerals, such as using smaller cars instead of limousines in funeral processions.

"What people are wanting is to know that they're doing the best they can both for their loved ones and for the environment," Cassidy said.


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Nesting instincts: enduring relationship between man and birds

The Telegraph 12 Apr 08;

From sharing caves with swallows to suburban peanut dispensers and vulture restaurants, man has long given house room to birds. Mark Cocker examines an enduring relationship

We wear it now like the mark of Cain. Every piece of environmental news reinforces an underlying message that humans are the great destroyers of life on earth. There is no scope for complacency in our role as the planet's custodians, but perhaps we can afford occasionally to take time off from this guilt reflex to consider another part of the story.


The great American naturalist Edward O Wilson suggests that we also have an instinctual need to engage creatively with other living things. He calls it biophilia, literally a love of life, and argues that a default aspiration of humanity is to dwell in close proximity to nature. So, the rural cottage, the lakeside dacha, even the country estate and the rainforest village are all, in some ways, an expression of the same attachment to wild animals and wild places. We can destroy, we do destroy, but we also have an enormous capacity to create, provisioning many species with a home and living space for thousands of years.

One of the best illustrations of biophilia I can give is unfolding this spring. Thousands of millions of migrant birds are heading north in a great deluge of colour and song across the European continent. About 75 million birds among those vast flocks comprise just three species - the swallow, house martin and swift - and every single pair of this European trio will almost certainly build its nest and rear young on a structure made by us.

Swallows love our outhouses, barns, sheds, garages and greenhouses. House martins suspend a mud cup underneath the overhang of our house eaves, but swifts actually come inside our roof space, gaining access through gaps in the tiles. Yet it is remarkable to reflect that at the end of the last ice age all of these birds nested on natural equivalents - mountain- and sea-cliffs, rock-faces, caves and riverbanks. In fact, evidence for one of the oldest nests ever in Britain comes from a Derby-shire cave that was once used by swallows - and Palaeolithic hunters - 15,000 years ago.

It is tempting to suggest that swallows were among the first birds to give our ancestors pleasure, when they song-flighted around the cave entrance and announced the arrival of spring. But at some point in this developing relationship, possibly at the Euphrates-Tigris confluence (in modern-day Iraq) with the beginning of Eurasian civilisation in about 5000bc, the birds took the plunge and moved in, switching their nest sites from natural rock faces to house walls. The habit caught on and en masse swallows and house martins (known collectively as hirundines) became our lodgers. By the time of Shakespeare's England or - as he himself would have us believe in Macbeth - by the Scottish 11th century, the habit was almost universal. 'This guest of summer,' Banquo announces of the house martin, 'Does approve By his lov'd mansionry that the heaven's breath/ Smells wooingly here…/ Where they most breed and haunt, I have observed/ The air is delicate.'

As usual, Shakespeare tapped into something fundamental about this experience: we really enjoyed the company of swallows and martins. We also repaid the birds' trust with deep tolerance. The point is well made by the changing name given to our own British swallows. Over the centuries they have been known as the 'chimney', 'house' and, more recently, the 'barn' swallow - reflecting an evolving architectural choice for their nest location. The earlier names indicate a time when hirundines and humans actually shared the same domestic space. Medieval chimneys were wide enough for birds to descend to the ledges within, or the swallows swooped in through the ever-open door and, in effect, nested inside our ancestors' living-rooms.

Although some fussy people insist on knocking nests down because of the mess created below, today it is illegal to dislodge hirundines. Yet in the past we didn't need legislation. The rules against disturbing them were self-imposed. We draped the ecological closeness between swallows and ourselves with a narrative about mutual affection and shared good fortune. Or as the Bard and Banquo put it so beautifully, we came to believe that 'heaven's breath smells wooingly' wherever the birds slung their nests. They were thus guarded by strong taboos and, during the writing of my book Birds Britannica, I was amazed to find how they are still. Letters from contributors told me how swallows had an almost sacred status for them.

What is even more moving, since it implies the common origins of these individual responses, is the way our benign hirundine inclinations span millennia and cultures. The ancient Greeks loved them as harbingers of spring and counted it good luck for them to nest on their home. Muslims cherish them too. The name of one African species, the mosque swallow, even suggests an Islamic bias in the bird's choice of nest site. In Tanzania, as in so much of the continent, breeding swallows are valued as signs of prosperity, good luck and bringers of welcome rain.

However, the ultimate development in this human-hirundine symbiosis occurred in North America. There the whole process by which swallows transferred from natural rock crevices to house walls didn't take thousands of years, it was telescoped into the few centuries of white colonisation. Sometimes swallows even extended their range across the continent in close tandem with the spread of American railways, the birds following the tracks to new towns and settlements.

The most extraordinary of all the New World developments had its origins with a Native American practice. Indigenous peoples such as the Choctaw and Chickasaw were accustomed to put out hollow gourds around their homes to attract a nesting bird called the purple martin, which resembles a dark-blue swallow. White settlers soon picked up the gourd-suspending habit and ran with it. Today virtually all purple martins use structures erected by people. Some of these are veritable apartment blocks housing 200 pairs. It is, in many ways, a perfect expression of biophilia. An entire species nests in quarters that we have specifically provided for them, and in return we gain the pleasures of seeing and hearing this delightful bird.

Perhaps the most famous of Europe's avian tenants is one of the continent's biggest species, the white stork. It has made a similar exchange in its breeding location from natural sites to manmade structures. In the stork's case it includes the roof of every kind of human dwelling, from state palaces to rural cottages, as well as cathedral domes, military towers, industrial chimneys and television masts. Some nests are ancient and may well involve a continuity of avian residence comparable with the human dynasty. One nest known to have been occupied in 1549 was still in use in 1930, and over the decades these stick tenements can become massive. A nest taken down from one cathedral weighed more than three quarters of a ton.

Once again it isn't just a case of a simple but passive tolerance towards storks. From Portugal in the west to Armenia in the east, the birds are encouraged to take up residence by placing old cartwheels and other platforms on the top of long poles. The storks' presence is then valued as a mixture of privilege, good luck charm and, of course, as Europe's quintessential emblem of fertility.

n return the storks construct the nest itself using a range of human products. Rags, plastic bags and bits of paper are highly favoured as nest linings, although these borrowings are modest by comparision with members of the kite family. In Britain the red kite, which has made a dramatic return to the Home Counties after a successful captive-release campaign, is notorious for its taste in human fabrics, including handkerchiefs, socks, gloves, hats and children's soft toys. The habit has long been known as it inspired a line from Shakespeare's The Winter's Tale ('when the kite builds look to lesser linen') as well as a Henry Williamson short story, Flight of the Pale Pink Pyjamas.

Kite behaviour is little more than petty theft when compared with the grand larceny practised by an African species called the hamerkop. Its gargantuan domed stick nest is out of all proportion to the half-metre-tall bird, but it is the interior that has attracted most attention. In one structure a Zimbabwean naturalist recovered six bicycle tyres, two socks, a plastic cup, 45 rags, a plastic comb, a pair of underpants (male), a typewriter ribbon, 56 bits of tinfoil, foam rubber, hosepipe, asbestos, sandpaper, 11 miscellaneous bones including a T-bone, as well as 100kg of grass and sticks.

Few activities better illustrate the deep intimacies between birds and people than our habit of feeding them. The simple Franciscan tradition of providing for our feathered friends is universal, but we have come to think of it primarily in terms of the garden bird-table and peanut dispensers that are now at the heart of an industry worth £200 million in Britain. In America it has 50 million participants spending an annual $3.5 billion.

Yet elsewhere, to feed the birds is an activity with semi-religious connotations. One of the most extraordinary examples occurs in north-west India. The small Rajasthani town of Khichan has acquired worldwide fame for the practice of feeding cranes. The surrounding desert plains are visited in winter by thousands of demoiselle cranes, one of the most elegant species in an already elegant family. They are drawn by the region's shallow manmade lakes and daily handouts of sorghum grain. Some locals are adherents to the deeply pacific Jain faith and count the daily half-ton ration for their avian visitors as a blessing and fulfilment of their religious precepts. Many of the town's wealthiest merchants moved long ago to major cities such as Delhi and Karachi, but retain links with their traditional birthplace and vie for the privilege of feeding the Khichan cranes.

Another bird-feeding operation on the grand scale is now known as a 'vulture restaurant'. The concept was pioneered in South Africa in the 1960s, but they have since been established across the world from California to Cambodia. As large wild mammals decline and farmers improve methods of stock-rearing, vultures have been squeezed out from vast areas of their former range. The restaurants fill a hole in the birds' diet by providing meat at regular managed locations. Normally the fare is unsaleable carcases (although a record for pricey vulture titbits was a racehorse worth tens of thousands of pounds that died of a brain haemorrhage). As these magnificent birds of prey shed their ghoulish connotations, the restaurants present their managers with unforeseen tourist and commercial possibilities.

They are now a critical part of feeding operations in France and Spain for one of Europe's rarest birds of prey, the lammergeier, a magnificent vulture species and one of the largest winged birds in the world. Despite the lamb-thieving associations of their name, these birds mainly eat bones, which means that the restaurant 'menu' is a relatively simple affair. Yet the implications of vulture restaurants are profound and may ultimately lead to a repeat of the situation with America's purple martins. Ultimately the fate of the entire species or the whole vulture family may be directly dependent on human kindness.

These feeding stations seem an innovation to meet a modern conservation need, but they also carry resonances from our ancient past. The dokhmas or 'towers of silence' in the fashionable suburbs of Bombay are tall open-roofed buildings where India's Parsi community lay out their dead to be consumed by birds. The tradition is dwindling because of evolving cultural norms among the Parsis, and also because the vultures themselves have recently suffered a catastrophic 99 per cent decline in India. Yet the towers of silence are a living expression of funereal rites that go back 8,000 years, to Neolithic practices in the Near East from where the first Parsis emigrated.

This most visceral of connections between birds and humans illuminates one of the fundamental reasons that we have been so captivated by them. In consuming the bodies laid out by their Parsi relatives in the towers of silence, the vultures will metaphorically carry the souls of the departed aloft. Like all of their kind, these birds move between the earth and the heavens. In doing so they embody some of our most cherished ideals about life. Throughout history we have found ways to repay birds for this transaction with our gods. That instinctual attachment - surely - is a sign of hope in a beleaguered world.

Mark Cocker and the photographer David Tipling are working on a book exploring the cultural interactions between humans and birds, and wish to hear from anyone who has experiences from around the world that shed light on this subject. Many contributions will be used in the book with a full acknowledgement to all contributors. See birdsandpeople.org or write to Birds and People, Jonathan Cape, Random House, 20 Vauxhall Bridge Road, London SW1V 2SA


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Best of our wild blogs: 20 Apr 08


"I want to go Cyrene Reef!" a new facebook group
more on the wildfilms blog

Hantu Bloggers outreach at ADEX
on the hantu blog and more thoughts after Saturday.

Roving reef exhibition debuts at ADEX
on the singapore celebrates our reefs blog

Talk: Are there Coral Reefs in Singapore?
by Jeffrey Low on the hantu blog

Shore volunteers reach out at ADEX
on the wildfilms blog

Get Naked for Earth Day on the Chek Jawa boardwalk
with a look at past reviews of the walk on the adventures with the naked hermit crabs blog

The Swallowtails of Singapore
on the butterflies of singapore blog

Bulbul bath
on the bird ecology blog

Leisure trip at Ubin
beats Orchard Road on the manta blog

Blue rock thrush
on the bird ecology blog


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