Baltic states failing to protect most damaged sea

WWF 27 Aug 08;

Nine Baltic sea states all scored failing grades in an annual WWF evaluation of their performance in protecting and restoring the world’s most damaged sea.

The assessment, presented today at the Baltic Sea Festival, graded the countries on how well they are doing in six separate areas - biodiversity, fisheries, hazardous substances, marine transport and eutrophication - and on how they have succeeded in developing an integrated sea-use management system.

The best grade (an F for just 46 per cent) was received by Germany, followed by Denmark (41 per cent) and the worst were Poland (25 per cent) and Russia (26 per cent).

“It is a shame no country could be given a satisfactory total score,” said Lasse Gustavsson, CEO of WWF Sweden. “The Baltic Sea is influenced by a multitude of human activities, regulated by a patchwork of international and national regulations and authorities.

“What the Baltic Sea needs now is political leadership that can look beyond national or sectoral interests and take an integrated approach to solving the problems.”

Behind the bad overall scores there were some rays of hope. Germany received an A on the biodiversity score for their protection of marine areas with around 40 per cent of the country’s sea areas protected.

Latvia and Lithuania have taken measures to combat illegal fishing of cod, partly by giving inspectors the mandate to impose sanctions on site. Estonia has a narrow lead in lowering the impact of hazardous substances.

Also at the festival WWF awarded Tarja Halonen, president of the Republic of Finland, with the Baltic Sea Leadership Award for “her persistent efforts to unite groups and encourage cross-border discussions on the future of the Baltic Sea”.

Finland is the only country in the region that has developpoed a cross-sectoral marine policy and several other countries are now taking steps to review their marine management.

“We now have an opportunity in the area of sea-use management with two current processes on the European level,” said Vicki Lee Wallgren, programme manager for WWF’s Baltic Ecoregion Programme.

She said initiatives such as the EU’s Maritime Policy and the EU Baltic Sea Strategy meant that “there is hope for the Baltic Sea”.

The poor state of the Baltic Sea environment has received attention this summer because of the extensive algal blooms caused by eutrophication and for recent scientific reports on the vast “dead zones” on the sea bottom. Seven of the world’s 10 biggest dead zones, where nothing can survive due to lack of oxygen, are found in the Baltic Sea.


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California officials planning to harvest ocean's fishing litter

300 pounds of discards snared near 3 county piers
By Michael Gardner, signonsandiego.com 26 Aug 08;

SACRAMENTO – The state is preparing to launch a fishing expedition, but it's not angling for tuna, squid or flounder.

In this case, the catch is tons of fishing equipment lost or discarded in the ocean every season, posing serious danger to marine life.

“I know what we have out there. I cannot dive without seeing abandoned gear. It's everywhere,” said Richard Rogers, president of the California Fish and Game Commission.

The fishing lines, hooks, nets, crab pots and lobster traps are blamed for killing or maiming whales, dolphins, otters, pelicans and other wildlife.

Limited pilot programs in the last few years netted 11 tons of fishing equipment from around the Channel Islands and a combined 300 pounds off the Oceanside, Ocean Beach and Imperial Beach piers.

Those numbers convinced the state that more aggressive action is needed, starting with a $400,000 collection program off the coast from Point Conception near Santa Barbara to Pigeon Point south of Half Moon Bay.

State officials hope to broaden the recovery program to take in the entire coast, target more piers and move inland to retrieve equipment from recreational fishing lakes.

In a demonstration of the danger posed by the gear, officials this month were forced to temporarily ban fishing from piers in the Capitola area when 90 endangered brown pelicans suffered injuries after becoming entangled in fishing lines while feasting on anchovies.

The Wildlife Conservation Board, a project-financing arm of the state Department of Fish and Game, is set to award funding for the fishing gear retrieval program today. If approved as expected, it will mark the first time in at least a half-century that the board has extended its reach into ocean waters, said Dave Means, assistant executive director of the board.

“We're just dipping our toes in,” Means said.

The SeaDoc Society, which is affiliated with the University of California Davis, will take the lead as part of its program to protect marine life in the Pacific Northwest.

The SeaDoc Society conducted a smaller project off the Channel Islands in 2006 and 2007, using volunteer divers to retrieve 552 pieces of gear, including 248 commercial lobster traps and three purse seine nets – large walls of netting that encircle schools of fish.

Commercial gear is not the only threat. Over those two years, SeaDoc divers salvaged 1,400 pounds of recreational fishing equipment, including more than 1 million feet of line off 15 public piers statewide. At San Diego County piers, the catch of discarded equipment yielded 131 pounds at Oceanside, 112 pounds at Imperial Beach and 60 pounds at Ocean Beach.

“It's like a jungle of fishing line around those piers,” Means said.

To encourage proper disposal, the SeaDoc Society is planning to install recycling bins on selected wharves so anglers have a convenient place to discard tangled line.

The dangers posed by lost or dumped equipment are well-documented, according to Kirsten Gilardi, executive director of the SeaDoc Society and a UC Davis veterinarian.

On average, she said, one in 10 of the pelicans and shorebirds brought into wildlife rehabilitation centers are treated after becoming entangled in lines, swallowing hooks or otherwise being injured by fishing gear. Last year, there were several confirmed cases of humpback and gray whales tangled in lines or nets.

From 2001 to 2006, more than 250 endangered brown pelicans were admitted to San Diego-area rehabilitation centers with fishing gear-related injuries, Gilardi said.

In her annual report and in an interview, Gilardi detailed the threats.

“Abandoned nets drown marine mammals. Hundreds of coastal birds suffer injury when they become entangled in fishing line or when they ingest hooks,” she said in the report. “Marine mammals, including the federally threatened southern sea otter, (are injured or killed) with wounds from entanglement, or with obstructed or perforated intestines from swallowed hooks and line.”

Additionally, many abandoned lobster traps contain bait, luring animals to their deaths, she said.

Wildlife species are not the only victims; boaters, surfers and anglers are also at risk, Gilardi said.

“Boaters catch ropes attached to lost traps and pots or discarded monofilament line around their propellers; surfers are injured running into lost gear underwater that 'reefs' up in breaking waves. As well, lost gear clutters legal fishing grounds, affecting fishermen's ability to safely and efficiently deploy their own gear, and in some cases damaging their nets,” she said.

After using divers at depths to 105 feet, SeaDoc is looking to deploy remote-operated vehicles in deep waters, Gilardi said. The specially designed craft would be outfitted with cutting instruments to remove lines and nets from the seabed.

Rogers, the fish and game commissioner, said abandoned traps, lines and hooks in ocean waters or on the seabed remain a long-term threat until they become encrusted.

“Until then,” he said, “the gear will continue fishing and the fish will continue to die needlessly.”


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Best of our wild blogs: 27 Aug 08


White-winged Tern: Hunting technique
on the Bird Ecology Study Group blog

Kampong Buangkok Videos
from Singapore's Heritage, Museums & Nostalgia blog

Fruit trees at Yishun Park
on the seen this scene that blog

Clown anemonefishes need rainforests
on the wild shores of singapore blog

How do parasitic clams get into a fish?
a scary alien invasion move on the other 95% blog

How to photograph jellyfishes for identification
jellyfishes are not just blobs (apparently) on the wild shores of singapore blog


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Cut greenhouse gases to save coral reefs: scientists

Deborah Zabarenko, Reuters 27 Aug 08;

WASHINGTON (Reuters) - To keep coral reefs from being eaten away by increasingly acidic oceans, humans need to limit the amount of climate-warming greenhouse gases in the atmosphere, a panel of marine scientists said on Wednesday.

"The most logical and critical action to address the impacts of ocean acidification on coral reefs is to stabilize atmospheric carbon dioxide concentration," the scientists said in a document called the Honolulu Declaration, for release at a U.S. conference on coral reefs in Hawaii.

Ocean acidification is another threat to corals caused by global warming, along with rising sea levels, higher sea surface temperatures and coral bleaching, the scientists said.

Coral reefs are a "sentinel ecosystem," a sign that the environment is changing, said one of the experts, Billy Causey of the U.S. National Marine Sanctuary Program.

"Although ocean acidification is affecting the health of our oceans, the same thing -- increased carbon dioxide in the atmosphere -- is going to in fact be affecting terrestrial environments also," Causey said by telephone from Hawaii.

Coral reefs offer economic and environmental benefits to millions of people, including coastal protection from waves and storms and as sources of food, pharmaceuticals, jobs and revenue, the declaration said.

But corals are increasingly threatened by warming sea surface temperatures as well as ocean acidification.

Oceans are getting more acidic because they have been absorbing some 525 billion tons of the greenhouse gas carbon dioxide over the last two centuries, about one-third of all human-generated carbon dioxide for that period.

The carbon dioxide combines with sea water to form carbonic acid.

Marine researchers have long recognized acidification in deep ocean water far from land, but a study published this year in the journal Science found this same damaging phenomenon on the Pacific North American continental shelf from Mexico to Canada, and quite likely elsewhere around the globe.

The water became so corrosive that it started dissolving the shells and skeletons of starfish, clams and corals.

Stabilizing carbon dioxide emissions was the Honolulu Declaration's top long-term recommendation. The key short-term recommendation was to nurture coral reefs that seem to have natural resilience against acidification.

This could be adopted immediately by managers of protected marine areas, Causey said.

The Honolulu Declaration will be presented to the United Nations and to other global, regional and national forums.


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Haze risk returns as fires increase in Indonesia

mongabay.com 26 Aug 08;

The number of forest fires burning in Indonesia is increasing, raising concerns for the potential return of choking haze to the region.

NASA satellite imagery released Tuesday reveals hundreds of "hot spots" burning in Sumatra, Kalimantan (on the island of Borneo), and southern Papua (on the island of New Guinea). The fires are set annually by landowners seeking to clear scrub and forest for the establishment of plantation crops, especially oil palm, which is used for making palm oil. In dry years the fires can burn for months, spreading into pristine rainforest areas and releasing large volumes of greenhouse gases into the atmosphere.

AFP reports the number and intensity of fires this month has led authorities to declare the official start of the fire season in Indonesia. Officials are worried that fires could be worse than average this season due to the unusually dry year.

The fires will be closely monitored by Indonesia, its neighbors, and environmentalists due to the wide-ranging impacts of previous burning seasons. Fires in some years have caused tens of billions in health and economic damages while releasing as much as two billion tons of carbon dioxide. Fires in peat swamps are a particularly large source of emissions.

Under an agreement with Singapore and Malaysia, Indonesia has pledged to reduce the number of hotspots by 50 percent by 2009, 75 percent by 2012, and 95 percent by 2025. 144,000 hotspots were recorded in Sumatra in 2006, although the number feel to 35,000 in 2007 due to wetter conditions.

NASA reports that the environmental group WWF will be using MODIS satellite data to track the Indonesian government's progress in controlling fires. MODIS data will be provided via the University of Maryland's Fire Information for Resource Management System (FIRMS), an alert system that tracks hot spots in real time.

The Moderate Resolution Imaging Spectroradiometer (MODIS) sensors flying on both the Terra and Aqua satellites detect fires by the heat they produce. Fire locations from MODIS for the week of August 4, 2008, are marked with red dots in the image above. The fire locations are overlaid on the NASA Blue Marble background.

Officials were concerned that fires during the 2008 season could be more intense than normal because the dry season had been especially dry. The lower image confirms the drought. Made with data collected by the Tropical Rainfall Measuring Mission (TRMM) satellite, the image shows rainfall measurements for July 2008 compared to average measurements. Areas that received more rain than average are blue, while regions that received less rain are brown. Sumatra and southern Borneo were dry through the month.

NASA images created by Jesse Allen, using fire data provided courtesy of the MODIS Rapid Response team, and TRMM rainfall data from the TRMM Science Data and Information System at Goddard Space Flight Center. Caption text by Holli Riebeek.


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NEA conducting study on specific sources of pollution of beaches

Julia Ng, Channel NewsAsia 26 Aug 08;

SINGAPORE: The National Environment Agency (NEA) is undertaking a detailed consultancy study to better understand the specific sources of pollution affecting beaches in Singapore.

In a written reply to a parliamentary question filed by Pasir Ris Punggol GRC MP Charles Chong, Minister for Environment and Water Resources Yaacob Ibrahim said the study is expected to be completed early next year.

The NEA introduced new guidelines for recreational water quality at the end of July. Based on these guidelines, Pasir Ris beach was assessed to be unsuitable for primary contact activities such as swimming, water-skiing and wakeboarding.

Dr Yaacob explained that some of the causes behind the high enterococcus microbial indicator include storm water runoff, riverine activities, indiscriminate discharges from industries and construction sites, and even non-domestic activities in the open seas.

He said the NEA will regularly collect and analyse water samples at popular recreational beaches.

The grading of beaches will be reviewed annually with advisories updated as necessary on their suitability for swimming and other primary contact activities. - CNA/vm


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The man who saw the future

In the 1970s, visionary architect Paolo Soleri built an extraordinary eco-city in the Arizona desert. Did it work? Steve Rose tracks down a guru who now finds himself back in demand

Steve Rose, The Guardian 25 Aug 08;

The round window in the Crafts III building at Arcosanti, the eco-city that Paolo Soleri built in the Arizona desert in the 1970s

The round window in the Crafts III building at Arcosanti, the eco-city that Paolo Soleri built in the Arizona desert in the 1970s. Photograph: GE Kidder Smith/Corbis

Wind-bells tinkle and cypresses sway in the breeze. The sun casts sharp shadows across an undulating landscape. There are strange concrete forms everywhere: giant open vaults, painted half-domes with strange crests, an amphitheatre ringed by buildings with giant circular openings, little houses sunk into the hillside. Healthy-looking, vaguely hippy-ish people, young and old, stride about in dusty jeans and T-shirts. Beyond are the scrub-covered hills of the Sonoran desert.

This not your typical American settlement. In fact, it's not your typical Earth settlement. For one thing, there are no cars or roads. Everything is connected by winding footpaths. Nor are there shops, billboards, or any other garish commercial intrusion. It looks like the set of a sci-fi movie designed by Le Corbusier. Round the next corner, you might expect to bump into Luke Skywalker, or Socrates, or a troupe of dancers doing Aquarius.

This is Arcosanti, 70 miles from Phoenix, Arizona. It's a curious taste of what an environmentally friendly US town could look like, but probably never will. It was designed by Paolo Soleri, an Italian-born architect, who originally came to Arizona to work for Frank Lloyd Wright, but soon set off on his own idiosyncratic path.

Soleri is a genuine visionary architect. In the early 1970s, his designs and fantastical writings made him a big-hitter in architectural circles, up there with other postwar sci-fi modernists such as Buckminster Fuller. Then he all but disappeared, becoming, for the past 30 years, little more than an obscure curiosity. Yet today, as the world wakes up to the grim realities of climate change, peak oil and sustainability, Soleri's path looks less idiosyncratic. In fact, he's now something of a guru: in demand on the lecture circuit and, recently, offering sage advice in Leonardo DiCaprio's "how can we save the world?" documentary The 11th Hour.

Soleri invented "ecotecture" before the word even existed. In the 1960s, he derived a similar term, "arcology", to describe low-impact, environmentally oriented design. But Soleri's arcology went beyond mere architecture. He developed an entire philosophy of civilisation, laid out in his 1969 book, The City in the Image of Man. It is a wondrous tome, full of lucid rhetoric, almost impenetrable diagrams and spectacular drawings of "arcologies": fantasy cities of the future intricately rendered. Rather than inefficient, land-hungry, low-rise, car-dependent cities (like nearby Phoenix), Soleri's arcologies are dense, compact, car-free, and low-energy. Their gigantic structures leave nature unspoilt and readily accessible. Some are hundreds of metres high, designed to accommodate six million people; others are built on top of dams, or form artificial canyons, or float in the open sea.

Four decades on, Soleri is still happy to expound on the state and the fate of the city. He welcomes me to Arcosanti, then gets straight down to business, explaining what he tried to set up here by first rounding on his old mentor Frank Lloyd Wright for glamorising suburbia. This, says Soleri, actually leads to the breakdown of the city, as what he calls "the hermitage" begins: "Instead of people gathering to develop a culture, they want to escape from other people. Individuals believe they can reach a level of self-sufficiency that can isolate them - or their family - in an ideal place. Then they somehow expect the civilisation that has made them to serve them. It's a parasitic kind of life."

In the 1970s, Soleri's vision of an alternative drew hundreds of student volunteers from all over the world to build Arcosanti, a prototype arcology with a projected population of 5,000. They worked for free in the sweltering heat, sleeping outside and learning from the master - who, judging by the photos, was usually to be found in swimming trunks and a short-sleeved shirt, digging alongside them. "It was not a community for community's sake, eating tofu and giving each other back rubs," says Roger Tolman, who oversaw construction. "It was the opposite of the hippy scene: a community of construction workers. If you were going to be here, you were going to work - harder than you'd ever worked in your life."

In the 1950s, Soleri built a base in Scottsdale, a desert town that has since been engulfed by Phoenix. He still lives there now. Named Cosanti, it was the prototype for Arcosanti: a complex of experimental, sculptural buildings born of low-energy construction methods such as "earthcasting": build a mound of earth, pour a layer of concrete over it, take away the earth and, hey presto, you've got a dome. Curiously, Soleri's main source of income was not architecture but windbells. Soleri wind-bells, cast from ceramic and bronze, still sell well. The windbell money, combined with lecture circuit cash, meant Soleri could buy the land for Arcosanti outright.

"It was very exciting," says Tolman. "Paolo was central to everything. He was an unbelievably dynamic speaker. Everywhere he went, his energy was obvious. Through word of mouth, a steady stream of people came. We had to send people away in the end. The kitchen couldn't cook more than 1,000 meals a day." Many of these people are still here. Tolman's wife, Mary, for example, is Soleri's assistant; there's Kerry, who does the guided tours; and Sue, who manages the archive, which contains vast scroll paintings by Soleri, one chronicling the intellectual evolution of mankind. It's 170ft long. Here, too, are sketchbooks, masterplans, essays, photos and press cuttings. One clipping is from the Guardian, recording Soleri's 1973 visit to London. "It may all sound impossibly utopian," the reporter writes of his arcological doctrine, "but at least Soleri is having a try."

Unfortunately, Arcosanti doesn't seem to have got much further since. Only 3% of the original design has been built; the rest doesn't look likely to spring out of the desert any time soon. Arcosanti never quite achieved the critical mass it needed. Its population reached a peak of about 200 in the mid-1970s, but today is lower than 60. That 1970s idealism gave way to 1980s "me generation" priorities and people moved on to "proper jobs", Tolman says. A regular flow of students still passes through, but they treat it more as a five-week work experience than an open-ended lifestyle experiment.

Soleri has slowed as well. Already in his 50s when he started Arcosanti, he is now 89, still fit and articulate, but that once hypnotic voice is now a hushed murmur, barely audible above the desert wind. "The main fault is me," he says when I ask him why Arcosanti has not been completed. "I don't have the gift of proselytising. For years and years, they responded to me like, 'That crazy guy, what is he doing out there?'"

Inevitably, the real reason for Arcosanti's incomplete state is money. Visionary he might be, but Soleri never seems too bothered with finance. Did he really expect to be able to build a city by selling wind-bells? Soleri laughs. "I was driven by emotions. I never sat down and said, 'What am I going to do now?' I was too busy." But, I ask, is it possible to build a utopia without money?

"Uh-oh," says Mary. Soleri mimes a curtain coming down and a bell chiming, as if the interview has ended. I've said the u-word, clearly in breach of house rules. But wouldn't Soleri describe himself as a utopian? "Oh Jesus!" he says, as if affronted that I've repeated the word. "Utopia is a pretty stupid notion. It says if any group anywhere develops some ideal condition, this condition is legitimate. And I say, 'Forget it!' If you are surrounded by all sorts of demeaning or painful conditions, then 'utopia' is just an arrogant notion that has no room for evolution."

But is Soleri guilty of a little arrogance himself? Utopian or not, his vision was never particularly practicable. Rather than addressing the problems of the existing urban realm, Soleri wants to build a new world, to his masterplan. This was always going to be a challenge, especially with limited cash.

The tragedy is that, judging by the buildings completed at Arcosanti, Soleri was a terrific architect. These are mostly bare-faced concrete, but they incorporate wood, murals, tiles and intricate details that lend them a homely, handbuilt quality, like the best of Le Corbusier's later work. They might have taken a long time to build, but they possess a spatial richness and geometric coherence that most modern boxes lack, both inside and out. And they are exemplary in their incorporation of simple, low-tech environmental principles.

Concrete apses are oriented to capture the heat and light of the low winter sun, yet also provide shade when it is at its highest in summer. And the roads, of course, are relegated to the perimeter. Later phases in Arcosanti's design would have called for 25-storey towers, transforming the village-like settlement into a dense city. They wouldn't be difficult to construct. If this was China, you could probably complete Arcosanti in about a year. But what exists there already is rather compelling - a persuasive alternative to current urbanism. In fact, it could represent the kind of sustainable, low-energy lives we are belatedly coming to realise we should have been living all along.

Rather than a "crazy guy" ranting in the wilderness, Soleri has proved to be a voice of reason. Nobody wanted to hear his diagnosis of the ills of US society, but it has been proved right - the car-centric, inefficient, horizontal suburban model has left us in poor shape to cope with climate-change problems. Yet Soleri is sceptical of new-found admirers of his philosophy. "They take a very shallow understanding of it," he says. In Soleri's view, we need to reformulate, rather than simply reform, our strategy for civilisation. His outlook is not hopeful. "Materialism is, by definition, the antithesis of green," he says. "We have this unstoppable, energetic, self-righteous drive that's innate in us, but which has been reoriented by limitless consumption. Per se, it doesn't have anything evil about it. It's a hindrance. But multiply that hindrance by billions, and you've got catastrophe."

Soleri long ago came to terms with the fact that Arcosanti will not be completed in his lifetime. What will happen after his death is up for debate. Some trustees of the Arcosanti Foundation want to see it completed to his original vision; others think it should be opened up to other architects, or even turned into a health spa to generate revenue. Soleri suggests it could be sold to a university or architectural research organisation. Whatever happens, Soleri's ideas could well be of benefit to future architects, if not as a wholesale solution, then at least as a source of inspiration.

Perhaps Soleri was simply too far ahead of his time. "I've put quite a lot of work into this," he says, looking out over his domain. "But there's no point in sitting and moaning".


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Saving species needs a shift in values

If a society has a real interest in the protection of whales and dolphins, then a change in our values is needed

Nicolas Entrup, BBC Green Room 26 Aug 08;

Playing the "numbers game" is not good enough when it comes to identifying what species are at risk from extinction, says Nicolas Entrup. In this week's Green Room, he argues that we need to re-evaluate how we decide what creatures need our help to survive.

The recent assessment of the conservation status of the world's whale and dolphin species has provided a good opportunity to discuss an important question.

That is, is our current approach to the conservation and protection of cetacean species a success story or a dead end?

The survey by IUCN, the global conservation body, reported that nearly a quarter of cetacean species were considered threatened.

Of those, more than 10% were listed as Endangered or Critically Endangered, the highest categories of threat.

The real situation could be much worse, it added, as more than half of the cetacean species (44 species) are classified as Data Deficient, meaning future research needs to be a priority.

The IUCN's review was done by various experts around the world and is based on criteria that define categories highlighting the threat of extinction to each species.

It is not my intention here to initiate a debate about the classification criteria used to define conservation status, but to challenge the concept used by decision makers who base their conservation decisions on what some people call "the numbers game".

Out of focus

The current practice applied within various international conventions and in the application of legislation is that the more threatened a species is (in terms of the number of specimens estimated to exist) the higher its protection status.

The result is that the species should receive more attention in terms of conservation measures taken, and get more funding from governments in order to prevent it becoming extinct.

This premise raises various questions. Does the prevailing theory prevent species from declining prior to reaching a status of such significant potentially irreversible concern?

Do we base our intention to protect marine species on the assumptions for their abundance in a vast region (whole oceans)? Or do we recognise whales and dolphins as highly evolved mammals living in complex social units, which we also wish to protect?

In late 2006, an intensive and expensive survey programme to search for Chinese river dolphins in the Yangtze resulted in no sightings.

The resulting conclusion was that this species, also known as the baiji, was most likely extinct. Gone forever.

Worrying times

Now, as the Austrian delegate put it at the last annual meeting of the International Whaling Commission (IWC) in June 2008: "We may be faced with [the extinction of] another one - the vaquita in Mexico.

"There are several more on the list, both small and large cetaceans," he continued.

"Clearly, we are called upon to act before the status of a stock or a species reaches that level of concern, particularly if the threat is of a relatively simple nature, for example directed takes."

He was referring to the Amazon River dolphin (classified as Data Deficient in the IUCN Red List) and the Dall's porpoise (classified as Least Concern).

This was a clear call to implement conservation measures in advance of the reduction of certain species or populations to a level where they just occur in tiny numbers.

The Mexican government informed the IWC that $19m (£9.5m) would be spent in the coming years to prevent the extinction of the vaquita, which has an estimated population of about 150 animals.

Every cent is worth the effort; but did the situation really need to reach this stage?

Wouldn't a more precautionary approach to prevent such a scenario in the first place be wiser and cheaper?

Fishing for solutions

Let's take a look at the situation of a much more abundant species: the common dolphin.

The IUCN has classified the species as Least Concern, while the Mediterranean subpopulation, classified as Endangered, is facing a decline of more than 50% of its original abundance over the past 40 years.

However, the real tragedy is revealed when you look at the situation of common dolphins in more detail.

Once the most populous cetacean species in the Mediterranean, common dolphins have totally disappeared from the Adriatic Sea and are going to become locally extinct in the eastern Ionian Sea probably within the next decade.

This situation is well documented in various scientific publications by scientists, such as Giovanni Bearzi, who have been studying these dolphins for about two decades.

The reason for its decline in the eastern Ionian Sea, where common dolphins are less numerous than the vaquita, is prey depletion as a result of overfishing.

There has been a long history of mismanagement of human fisheries practices and a failure of government action in this region, but the key problem today is caused by just nine purse seiners.

These are nine boats that could just switch their fishing methods to a more sustainable one and dramatically increase the local common dolphin population's chances of survival. But so far, conservation actions just exist on paper.

Let's face it, while a species like the common dolphin is of Least Concern on a global scale, population units in various regions - including in some regions we might not even be aware of - have become extinct or continue to decline towards extinction.

If a society has a real interest in the protection of whales and dolphins, then a change in our values is needed.

We need a classification system and political action that is based on respect towards individual animals and focuses on the protection of marine mammals within their social units and their habitats.

Nicolas Entrup is managing director of Whale and Dolphin Conservation Society (WDCS) Germany

The Green Room is a series of opinion articles on environmental topics running weekly on the BBC News website


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Protection Zones Not Helping Reefs, Study Finds

Michael Kahn, PlanetArk 27 Aug 08;

LONDON - Conservation zones in the Indian Ocean set up to protect fish stocks are not preventing coral reefs from collapsing due to warmer temperatures or helping to speed their recovery, researchers reported on Wednesday.

The reason is many of these non-fishing areas are located in warmer waters where coral reefs have a harder time surviving when temperatures rise suddenly, said Newcastle University marine biologist Nick Graham, who led the study.

The survey of 66 sites in 7 countries is the largest study of its kind and underscores the need for urgent action to save the important marine ecosystem, the researchers said.

The findings also show fishing limits that keep boats out and people out of fragile areas do not protect coral the way many scientists had thought, the researchers said.

"The Indian Ocean hosts some of the most diverse reefs in the world," Graham said in a telephone interview. "Current marine protected areas don't show any potential for faster recovery than non-protected areas."

Coral reefs, delicate undersea structures resembling rocky gardens made by animals called coral polyps, are important nurseries and shelters for fish and other sea life.

They are also considered valuable protection for coastlines from high seas, a critical source of food, important for tourism and a potential storehouse of medicines for cancer and other diseases.

But overfishing, climate change and human development are threatening reefs worldwide, including in the Indian Ocean where warmer water temperatures due to the El Nino weather system in 1998 devastated the coral population, researchers said.

"The West Indian ocean lost about half of its coral and some areas lost up to 90 percent," Graham said.

The researchers, who reported their findings in the journal PLoS One, looked at the coral population over a 10-year period beginning in 1994 to compare the before and after effects of the 1998 destruction.

They found that nine protected areas varying in size from 1 square kilometre to 14 square kilometres in the Seychelles and off the coasts of Kenya and Northern Tanzania were boosting fish stocks but not doing much for the coral.

Instead, coral was rebounding much faster in areas with cooler waters in Southern Tanzania, Reunion Island and Mauritius -- all areas with very few of the protected zones set up in the 1960s and 1970s.

The findings do not suggest existing protected areas should be scrapped but rather point to a need to focus conservation efforts on faster-recovering areas and manage the system as a whole, Graham said.

"We need to focus on areas that are recovering faster or escaping the impacts of climate change," he said. "This is where your brood stocks of coral areas are that will help seed other areas." (Reporting by Michael Kahn, Editing by Giles Elgood)

Protection Zones In The Wrong Place To Prevent Coral Reef Collapse
ScienceDaily 27 Aug 08;

Conservation zones are in the wrong place to protect vulnerable coral reefs from the effects of global warming, an international team of scientists warn.

Now the team – led jointly by Newcastle University and the Wildlife Conservation Society, New York – say that urgent action is needed to prevent the collapse of this important marine ecosystem.

The research, recently published in the journal PLoS ONE, is the largest study of its kind to have been carried out, covering 66 sites across seven countries and spanning over a decade in the Indian Ocean.

Current protection zones – or 'No-take areas' (NTAs) – were set up to protect fish in the late 1960s and early 1970s, before climate change was a major issue.

The team – which comprises of experts from the UK, Australia, the US, Sweden and France – found the small-scale zones were not working to protect coral reefs against the effects of climate change.

They conclude that while the existing zones should not be removed, new areas are needed in the right place to protect corals against the effects of rising temperatures.

And they say that managing the system as a whole is crucial if coral reef communities are to have any hope of surviving the effects of global warming.

Lead researcher Nick Graham, of Newcastle University's School of Marine Science and Technology, said: "We need a whole new approach – and we need to act now.

"Our research shows that many of the world's existing no-take areas are in the wrong place.

"New protected zones are needed that focus on areas identified as escaping or recovering well from climate change impacts. But a major focus needs to be shifted towards increasing the resilience of the system as a whole – that means reducing as many other locally derived threats as possible.

"Coral dies when it is put under stress so what we need to be doing is reducing the direct human impact – such as over-fishing, pollution and sedimentation – across the whole area.

"By removing all these other stresses we are giving the coral the best chance of surviving and recovering from any changes in temperature that may occur as a result of global warming."

Previous work by the team focused on the long-term impact of the 1998 event where global warming caused Indian Ocean surface temperatures to increase to unprecedented and sustained levels, killing off (or 'bleaching') more than 90 per cent of the inner Seychelles coral.

Although many areas are showing signs of long-term degradation, Mr Graham said it was positive to see that some locations either escaped the impact or have recovered.

"This provides the key to conserving coral reefs in the face of climate change," he says. "We are not suggesting that we scrap the existing NTAs – in terms of protecting fish stocks they have been quite successful.

"But they are not effective against global warming and in order to ensure the long-term survival of this rich marine community that is what we need to address."

The team comprised researchers from Newcastle University; the Wildlife Conservation Society; National Research Council, Florida; James Cook University, Australia; the Centre for Environment, Fisheries and Aquaculture Science, Lowestoft; the University of East Anglia; the Institut de Recherche pour le Developpement, New Caledonia; Laboratoire d'Ecologie marine, France; Natural England; The Nature Conservancy; the Universite de la Mediterranee, France; Universite de Perpignan, France; Stockholm University, Sweden; University of Warwick.

Logistical support was received from the Seychelles Centre of Marine Research and Technology-Marine Park Authority, Seychelles Fishing Authority, Nature Seychelles, Mauritius Institute of Oceanography, University of Dar es Salaam, and Kenya Wildlife Service.

This research was funded through grants from the Leverhulme Trust, Western Indian Ocean Marine Science Association, World Bank Targeted Research Group on Coral Bleaching, the Fisheries Society of the British Isles, the Eppley and Tiffany Foundations, the National Science and Engineering Research Council of Canada, the British Overseas Development Administration (now DFID) and the British Foreign and Commonwealth Office.


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US Considers Protecting Vast Swaths of Pacific

Deborah Zabarenko, PlanetArk 27 Aug 08;

WASHINGTON - Vast swaths of US Pacific Ocean waters could be protected as marine sanctuaries or monuments, the White House said on Monday, drawing praise from environmental groups.

President George W. Bush started the process by directing the US secretaries of the Interior, Defense and Commerce departments to assess whether certain locations in the Pacific should be designated as marine protected areas, White House spokesman Tony Fratto said.

The areas being considered for protection in the new plan are a group of islands and atolls in the remote central Pacific, including the Rose Atoll near American Samoa, and some of the waters around the Northern Mariana Islands in the western Pacific.

The move comes a month after Bush in a symbolic move lifted a White House ban on offshore drilling closer to home as gas prices soared. Environmental groups said expanded offshore drilling, which would still require congressional approval, would not cut gas costs and could hurt wildlife.

If all the new places mentioned by Bush were protected, the territory would total more than 891,000 square miles (2.308 million sq km), an area larger than Texas and Alaska combined.

"These areas are host to some of the world's most biodiverse coral reefs and habitat and some of the most interesting and compelling geological formations in all of our oceans," Fratto said, speaking from Crawford, Texas.

Some of these areas are also of military and strategic importance, and Bush advised his cabinet secretaries that their recommendations should not limit military activities and should be consistent with freedom of navigation and international law.


"HOPEFUL SIGN"

Bush said any recommendations should take into account cultural, environmental, economic and "multiple use" implications, including whether to keep access to recreational and commercial fishing, energy and mineral resources and scientific study.

Bush established a national monument in the northwestern Hawaiian Islands in 2006, creating the largest marine protected area in the world. Monday's announcement sets a process in motion that could result in more such protected ocean areas by the end of Bush's presidency in January.

Joshua Reichert of the Pew Environment Group called the announcement "a hopeful sign for ocean conservation" but said designation as a marine sanctuary or monument could still permit commercial fishing and deep sea mining.

"However, if the president establishes these new sites as no-take reserves, where no extractive activity is allowed, it would be one of the most significant environmental achievements of any US president," Reichert said in a statement.

"The president is on the cusp of conserving more territory than any leader has ever done. That's an amazing legacy to leave the nation," said Fred Krupp, president of Environmental Defense Fund.

Environmental Defense Fund noted in a statement that seabirds, turtles and other wildlife could be harmed if energy development, mining and fishing are allowed in these areas, but said it expected full protection for these species.

Bush's environmental record has drawn chronic complaints from activists, notably for failing to mandate limits on climate-warming carbon dioxide and limiting designation of endangered and threatened species during his tenure.

(Additional reporting by Jeremy Pelofsky in Crawford; Editing by Cynthia Osterman)

World's Largest Marine Sanctuary Proposed by U.S.
Ker Than, National Geographic News 26 Aug 08;

A proposal by U.S. President George W. Bush could give national-monument status to some of the world's most remote and pristine Pacific islands and their waters, potentially transforming them into the largest protected marine reserve on the planet.

But its success will hinge on whether the proposed ocean sanctuaries in the western and central Pacific are granted full-protection status, scientists warn.

That would prohibit potentially disruptive activities such as oil and gas drilling, fishing, and mineral extraction.

The administration has traditionally been friendly to industry needs.

Just yesterday the U.S. National Oceanic and Atmospheric Administration—which falls under Bush's purview—proposed reducing a protective buffer zone against large ships in areas where endangered North Atlantic right whales swim. The move bows to shipping-industry preferences, conservationists say.

The central Pacific islands—which would include Johnston Atoll, Kingman Reef, and Jarvis and Howland Islands—could potentially cover about 776,000 square miles (2 million square kilometers) of protected area.

The western proposed reserve, comprising the Northern Mariana Islands, could cover as much as 115,000 square miles (297,000 square kilometers). It would include parts of the Mariana Trench, the deepest location on Earth's surface, along with coral reef islands called atolls.

Because the President has exclusive power to protect U.S. resources, conservationists expect the new proposal will become law.

"Great Choice"

Enric Sala, a marine ecologist and National Geographic fellow and emerging explorer, called the selected territories a "great choice." (National Geographic News is owned by the National Geographic Society.)

The waters of the central Pacific islands are home to some of the best preserved coral ecosystems in the world, Sala said.

Any one of the central Pacific islands in the proposed sanctuary contains five times as many coral species as the entire Florida Keys, as well as hundreds of fish species; dozens of species of seabirds; and numerous whale, dolphin, and sea turtle species.

"These are among the only base lines that we have left of what the ocean was like hundreds of years ago," Sala said.

The waters off Kingman Reef, for instance, are dominated by gray sharks, white-tipped reef sharks, and other shark species.

"These places are completely different from what we know anywhere else. They're totally dominated by their predators," Sala said.

"Imagine the Serengeti with five lions per wildebeest. This is Kingman Reef."

Extended Protection

Many of the central Pacific islands are already fully protected by the U.S. Fish and Wildlife Service, but the protection zone extends only 3 to 12 nautical miles (3.5 to 14.8 miles/5.6 kilometers to 22.2 kilometers) from each island.

Bush could extend that protection to 200 nautical miles (230 miles/370 kilometers)—under the 1906 Antiquities Act, which allows Presidents to protect any U.S. areas they deem significant.

But to ensure that the monument islands fully benefit from their new status, they will have to be fully protected from all fishing, drilling, and mining activities, scientists say.

"You wouldn't necessarily need to have the entire thing protected, but it's very important to have key areas fully protected," said Dennis Heinemann, a senior scientist at the conservation group the Ocean Conservancy.

Under the Antiquities Act, the President can grant various levels of federal protection to a national monument, ranging from a "no take, no go" status—in which people and industries are not allowed to take anything from the areas or even to visit them—to a more flexible situation where certain activities are allowed.

"There is risk in this from a conservation standpoint, in that if it doesn't go right, it could be a step backward," said Amanda Leland, policy director at the Environmental Defense Fund, an environmental-advocacy group that was consulted by the White House on the new monument proposal.

Cause for Optimism?

While the Bush Administration's environmental record has often provoked ire among conservationists, the Environmental Defense Fund and other environmental groups are cautiously optimistic that Bush will grant the proposed sanctuaries full protection.

"If he does this before he leaves office, he could go down in history as being the best president on ocean conservation," Leland said.

Perhaps not coincidentally, the areas being considered are also of little commercial value: Their remoteness makes drilling or mining prohibitively expensive.

"This is low-hanging fruit," National Geographic's Sala said. "It has no commercial value, except [for] fishing."

Yet migrating schools of tuna pass through the region and could be targeted by commercial fisheries, Sala added.

"I bet most of the opposition for the enlargement of the protection will come from the tuna-fishing industries," he added.


Management Challenge

Conservationists are also hopeful the initiative will pass with full protection, because Bush has done it before.

In 2006 Bush created the Papahānaumokuākea National Marine Monument in the Northwestern Hawaiian Islands. At the time it was the largest marine sanctuary in the world.

But even if all of the President's proposed territories are granted national-monument status, there is the question of whether the government has the resources to adequately manage them.

The total area that Bush is proposing to protect is nearly as large as Texas and Alaska combined.

The Hawaiian marine national monument is six times smaller, and it is already proving a challenge to maintain.

Two years after its creation, scientists say Papahānaumokuākea still lacks a comprehensive management plan, and funds for debris cleanup in the region have been drastically cut.

Heinemann of the Ocean Conservancy sees many parallels between Papahānaumokuākea and the ocean sanctuaries Bush is now proposing.

"It's largely uninhabited, and it's difficult and expensive to do surveillance and enforce regulations," he said. "That will be true also with these other areas."



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Rare albino whale shark photographed

Paul Eccleston, The Telegraph 26 Aug 08;

Whale sharks are unusual and mysterious creatures but this rare albino specimen makes it even more so.

The 10-metre long shark was pictured swimming off the coast of Darwin, the northern-most island of the Galapagos.

The marine giant is almost pure white making even its eyes almost undetectable.
Despite their huge size - whale sharks can be 60 feet long and weigh as much as 40 tonnes - they are harmless and feed mainly on plankton and small fish.

Galapagos guide Antonio Moreano, who took the pictures, said he had never seen an albino whale shark before.

"In my job as a dive guide I have seen many things from being right in the middle of a feeding frenzy with silky sharks to watching orcas eating hammerhead sharks," he said.

"But nothing compared to what I saw that afternoon last August."

"It was 4:30pm and I and six guests were at Darwin's Island, set to make the fourth dive of the day.

"As we were on the boat checking our equipment I saw a big white thing by the surface of the water.

"At the beginning I could not tell what it was - I had never seen anything like it before.

"So I decided to put my mask on and put my face over into the water.

"Right after this I explained to my guests that it looked like a white whale shark and we were going to all jump in the water and try to follow it.

"I told everyone to keep a distance and not disturb it so we all jumped in the water and followed it for five minutes.

"I kept up swimming with it and I got very close - even the eye was white.

"Then we all went back on the boat and we spotted the shark again and we all jumped into the water again this time only with snorkelling gear."

Returning to the water with his camera gear, Antonio dived to around 50 feet as he attempted to catch up with the whale shark.

"I free dove 50 feet down and is when I finally managed to get some pictures of it," he said.

"It was difficult because I did not want to frighten it away so I stayed a few metres away.

"After a few minutes the albino disappeared and nobody has ever seen it again!

"The whole experience from the moment I first saw it to the time it swam away lasted around 30 minutes.

"I was very excited but it was not until we came back to the boat that I finally realised and understood how special this sighting was.

"It was a unique experience and was maybe the best gift that my beautiful islands could've ever given to me."
# Albinism is a group of conditions characterised by a lack of colour in the skin, hair and eyes.

Albinism occurs when a person or animal inherits one or more faulty genes that don't produce the usual amounts of a pigment called melanin.

In most cases, there's no family history.

Several different genes are involved in albinism, depending on the specific type.


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Whales losing blubber, claims controversial Japanese study

Data from Japan's widely condemned scientific whaling programme suggests a loss of fat over the past 20 years may be due to climate change, but some claim the research is unethical

David Adam, guardian.co.uk 26 Aug 08;

Over two decades, Japanese ships have butchered thousands of whales taken from the icy waters around the Antarctic in the name of research. Campaigners and politicians condemn the practice as unethical and unnecessary, and say Japan's "scientific" whaling programme is commercial whaling by another name.

Now, Japan's scientists claim their controversial whaling programme has produced a key finding. Measurements taken from more than 4,500 minke whales slaughtered since the late 1980s reveal the animals have lost significant amounts of blubber, and are getting thinner at a worrying speed. The team says its study offers the first evidence that global warming could be harming whales, because it restricts their food supplies. And they say the discovery could only have been made by killing the animals.

Crucially for the Japanese, the results have been published in a mainstream western scientific journal – a move that has dismayed campaigners, who say it could offer scientific whaling a veneer of respectability, and bolster Japan's efforts to hunt more whales.

They fear Japan could use the results to support efforts to hunt endangered humpback whales for the first time in 50 years. The study claims the recovering humpback population in the Southern Ocean could also be hurting the minkes because of "interference" between the two species as they compete for food.

Lars Walloe, a Norwegian whale expert at the University of Oslo, who helped the Japanese team analyse the data, and is listed as an author on the new study, said: "This is a big change in blubber and if it continues it could make it more difficult for the whales to survive. It indicates there have been some big changes in their ecosystem."

Whales rely on their thick layer of blubber for energy and as insulation against the cold water. The shift could already being making it more difficult for them to reproduce, Walloe said. "I don't think you could measure this by other [non lethal] means." Alternative methods to sample blubber, such as ultrasound and biopsy darts, have been developed. But Walloe said it was not practical to use them on the required scale with minke whales, which are also difficult to approach.

He said the Japanese findings, and their publication, had been unpopular among scientists from nations opposed to whaling, including Britain. Two journals refused to print the findings before they were accepted by Polar Biology, which published them online last month. Walloe, who says he does not support the current ban on commercial whaling, claimed that the journals that turned down the study did so for political, not scientific, reasons.

This is not the first time that the Japanese scientific whaling programme has published results, but these are the most high-profile findings so far. In 2005, Australian scientists analysed the 55 scientific papers produced by the programme and said only a handful were relevant and required the whales to have been killed. The others included descriptions of bizarre experiments to cross-fertilise whales with sheep and cows.

The new study analysed measurements taken from 4,689 adult whales killed by the Japanese whaling fleet between 1988 and 2005. It found that blubber thickness and overall fat weight had decreased by 9% over the period, which it called a 'substantial decline". Girth of the animals was down 4%. The study says: "This is the first time a long-term decline in energy storage in minke whales has been demonstrated."

It also demonstrates the brutality of whaling, which the paper describes as carried out using "explosive harpoons and a large calibre rifle in the event that death was not instantaneous". Several of the dead whales had to be excluded from the new analysis because their blubber was too badly damaged to be measured accurately.

Mark Simmonds, director of science at the Whale and Dolphin Conservation Society, said: "Lots of dead bodies will provide robust data, so if you kill lots of whales then you will be able to get some information. The question is whether the benefits outweigh the number of whales killed and how they were killed. Scientific whaling is not about science, and there is no pressing conservation need that requires it to be done."

He said the results should not have been published on ethical grounds. "Journals need to think very carefully about information that comes from this source. Different journals have different ethical standards." The editors of Polar Biology could not be reached for comment. British whale scientists were reluctant to discuss the research, which one described as "very worrying if true".

Walloe said the decline in blubber was down to shrinking numbers of Antarctic krill, a shrimp-like crustacean at the heart of the food chain. The amount of blubber lost is roughly equivalent to 36 fewer days of intensive summer feeding.

Krill numbers in the water around the rapidly-warming Antarctic peninsula have collapsed by about 80% since the 1970s. This is blamed on the loss of sea ice, which provide shelter and food for krill.

The study says the impact of global warming on the minke whales is unclear because no similar krill measurements have been made in that region of the Southern Ocean. But it claims that competition for krill from other predators such as the humpback must also be "considered as a likely explanation".
Science and slaughter

Japan's scientific whaling programme, known as JARPA, began in 1987 following the moratorium on commercial whaling. Japan says its research is aimed at overturning the ban, by providing evidence that stocks could be hunted in a sustainable way.

Critics say it is limited commercial whaling in disguise because the meat is sold for food, and that whales do not need to die to provide the required information on population numbers and structure. Until 2005, Japan killed up to 440 minke whales in the Southern Ocean each summer. Recently it has doubled that quota, and last year said it would hunt dozens of endangered fin and humpback whales for the first time in decades, until it backed down "temporarily" under intense political pressure.

Until now, the most high-profile claim from the programme was that whales should be killed to conserve fish stocks – an idea ridiculed by fisheries experts.


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Ghana Elephants Show UN Deforestation Headache

Alister Doyle, PlanetArk 27 Aug 08;

AFIASO, Ghana - Rising elephant numbers in a protected forest park in Ghana are angering farmers whose crops are being raided in an unwanted side-effect of a plan to slow deforestation.

Locals in Afiaso, a village of 620 people in southern Ghana with no electricity nor running water, grumble that they are seeing limited benefits from agreeing to cooperate in protecting Kakum National Park forest, which starts 2 km (1 mile) away.

"We used to cut down a lot of trees to plant cocoa. Cutting down trees used to be normal," chief Nana Opare Ababio, 47, told reporters sitting with the village elders as children danced and banged drums alongside. On racks, cocoa beans dried in the sun.

Now, he said, villagers were respecting the park boundary.

"Money has not flowed to the village," he said, despite cooperation in helping protect the forest and a 2006 law meant to give local communities a share of park income such as from limited logging that does not damage the forest.

Finding new ways to slow the felling of the world's forests is a focus of 160-nation UN climate talks being held in Accra, about 200 km (125 miles) to the east. Deforestation accounts for almost 20 percent of greenhouse gas emissions.

But Afiaso may show some of the difficulties -- such as ensuring that money reaches poor local communities who are the ones slowing deforestation and dependent on farming maize, cocoa, plantains and cassava.

And in Afiaso there are the elephants.

"Elephants come to raid our crops. Then we have to buy food elsewhere," complained one man at a village meeting.


ELEPHANT RAIDS

Protected in the park, elephant numbers in Kakum rose to 206 in the last census in 2006 from 189 in 2000, according to Daniel Ewur, the park manager. The animals break out of their forest stronghold and eat crops.

Still, cooperation with the park has brought jobs for some people in the village and locals believe re-growth of forests in the protected area in recent years has helped stabilise once unpredictable rains and benefited crops, Ababio said.

And local children will grow up seeing animals that might otherwise have been driven to extinction, even though some complain the deal has cut hunting rights. The forest is home to rare species including the Diana monkey and the bongo antelope.

This shows the complexity of working out how to slow deforestation, said Emily Brickell, forests campaigner for the WWF environmental group after visiting Afiaso.

A new global deal to safeguard forests could cost between US$20 and $30 billion a year, she said. In Afiaso, villagers said their priorities for any cash were a bungalow for a teacher or a new clinic.

"There seemed to be a lot of will and support for the idea that the communities should be receiving benefits," Brickell said of talks between park officials and villagers in Afiaso.

At the UN meeting, cash to slow deforestation is seen as a way to get many developing nations to do more to slow climate change that could aggravate water and food shortages through heatwaves, droughts, floods and rising sea levels.

Worldwide, the annual net loss of forest area between 2000 and 2005 was 7.3 million hectares a year -- an area about the size of Sierra Leone or Panama -- according to the UN Food and Agriculture Organization.

Trees soak up carbon dioxide, the main greenhouse gas, as they grow and release it when they burn or rot. Slowing slash and burn policies by many farmers to clear land for crops would protect the climate.

AMAZON

At the talks in Accra, many delegations have stressed that local communities and indigenous peoples should benefit, from the Amazon to the Congo.

"There is an overall understanding that (aiding local people) is an important part of what we should do," said Luiz Figueiredo Machado, a Brazilian diplomat who chairs a group at the talks looking at ways to fight deforestation.

And in Afiaso, part of the answer may be pepper.

"We learnt from experts in Zambia that elephants don't like pepper," said park manager Ewur.Farmers were now mixing pepper with grease and then smearing it on rags that are hung from nylon ropes around fields with crops.

"Elephants have a very good sense of smell and stay away from the pepper. I've tried it myself -- it was 100 percent successful," he said. (Editing by Giles Elgood)


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Are Birds Best Hope for Pest-Ridden Coffee Crops?

Stefan Lovgren, National Geographic Magazine 26 Aug 08;

Chances are you've never heard of Hypothenemus hampei. But this tiny insect is the world's biggest threat to something many of us swear we can't live without: our morning cup of coffee.

The bug, commonly known as the coffee berry borer, strikes almost everywhere coffee grows. It can destroy up to 70 percent of a crop, posing a significant threat to this $70-billion-a-year industry.

Millions of dollars have funded research to eradicate the coffee berry borer, and for decades, coffee farmers the world over have been battling the pest using every weapon they can muster, from traps to insecticide and even other insects—all with limited success.

But a simple solution may already exist in their own backyards: birds.

"By eating the pests that damage coffee crops, birds can provide a valuable service to coffee farmers," said ecologist Matthew Johnson. He's measured birds' protective effects on coffee plants in Jamaica—and concluded that farmers can reap more protection simply by providing the birds a friendlier environment.

Jamaica's mountain regions produce some of the world's best and most expensive varieties of gourmet coffee.

With funding from National Geographic, Johnson, an associate wildlife professor at Humboldt State University in Arcata, California, and his research partner, Jherime Kellermann, showed the extent to which birds protect coffee crops.

The birds target and gobble up insects during the brief window of time before the bugs start doing damage. When foraging birds were free to visit coffee plants, there was up to 14 percent less borer infestation than in plants that were caged off from the birds.

The researchers also found that berry damage was cut nearly in half, providing a significant boost in coffee yields and farm income.

"This is one of those win-win-win situations—something that is good for the farmer, good for the birds, and good for the environment," Johnson said.

A Hot Commodity With a Costly Problem

Coffee is produced in 70 countries, and the industry employs some 20 million farming families around the globe. It's the second most traded commodity in the world, after oil.

The damage caused by the coffee berry borer is commonly put at half a billion dollars a year. But entomologist Fernando E. Vega, an expert on the pest at the U.S. Department of Agriculture, says that's a very conservative estimate, since any hint of crop damage can send the price tumbling.

"As soon as the brokers take a sample and see there is damage by the coffee berry borer, the price goes down immediately," he explained.

So how does a tiny beetle do so much harm? The female borer, just a millimeter and a half long, drills into coffee berries and lays its eggs inside—up to 50 per berry. Once hatched, the young borers devour the beans from within, rendering them worthless.

Solutions aren't easy—or cheap.

Farmers can exhaust up to one-fifth of their annual income attempting to control damage by these pests.

Traps tend not to work, in part because the insects spend so little time outside the coffee berry. Parasitic insects that attack the coffee berry borers aren't always effective or easy to rear.

Researchers, including Vega, are investigating the possibility of fighting the beetles with deadly fungi. In the meantime insecticides, while hardly foolproof, may be the most powerful weapon.

But some farmers find them prohibitively expensive, and the most effective insecticide, endosulfan, is highly toxic—to humans as well as the insects. As a result, endosulfan has already been banned in many countries, and Jamaica's Coffee Industry Board will phase out its use on the island by 2010.

Avian Solutions

Birds, on the other hand, are relatively problem free. Migratory warblers spend every winter in Jamaica and are partial to the coffee berry borers that infest the island's famed Blue Mountain and High Mountain coffee farms.

Johnson estimates that growers who enlist these birds to control berry borers could save as much as $237 an acre (0.4 hectare) every year at lower-elevation farms, where pest infestation is highest. That's more than 20 percent of the average Jamaican coffee farmer's annual income, $1,043 an acre (0.4 hectare) at those elevations.

Johnson hopes his findings will help create an economic incentive for coffee producers to manage their farms in ways that will aid bird conservation—especially by planting or maintaining pockets of trees instead of clear-cutting pastures, as they normally do.

Jamaica's mountain regions, he notes, are at particular risk of deforestation because of clear-cutting for coffee farms. Even if tree maintenance costs some farmers more, he emphasized, "birds are always going to be cheaper than using pesticide"—and more eco-friendly too.

Experts find reason for hope in Johnson's findings, though some caution that there's no silver bullet to eradicate H. hampei.

"The coffee berry borer is an incredibly difficult insect to control, and the only way to make a dent in its population levels in the field is by using an arsenal of strategies," said the USDA's Vega. "The recent findings from Jamaica indicate that birds could be an important part of the arsenal to fight this pest."

Jamaica Stands Behind Bird Arsenal

Johnson's work adds to existing evidence that birds have an overall positive impact on agriculture.

Ornithologist Russell Greenberg, who heads the Smithsonian Migratory Bird Center at the National Zoo in Washington, D.C., conducted a survey of studies examining the effect birds and insects can have on tropical agricultural habitats.

"We found that across all studies, birds reduce all arthropods [which include insects, spiders, and crustaceans] and plant damage," he said.

Although some Jamaican coffee farmers object to planting shade trees for fear of encouraging fungal growth, the island's Coffee Industry Board recently began encouraging farmers to plant trees that support birds.

Peter Williams, a farmer with Kew Park Estate Coffee, which produces Jamaican High Mountain coffee, thinks it's a good idea.

"We have always had an appreciation that birds played a role in controlling [the] coffee borer, but had no idea that the effect was as significant as [Johnson's] research has shown," he wrote in an email. "This is changing the way we farm, as we now are looking at ways to attract more birds to the coffee fields, including preserving more woodland and ensuring that the shade trees are maintained within the coffee fields."

In certain cases, the birds themselves might be able to do some of the work needed to grow more trees in coffee-producing regions. National Geographic grantee Cagan Sekercioglu, an avian ecologist at Stanford University, found that two fruit-eating manakin bird species in Costa Rica serve as effective couriers for seeds. These small, tropical forest dwellers may help increase the number of trees on and around agricultural land, including coffee farms.

In an ongoing radio-tracking project—one of the largest of its kind—Sekercioglu and his team followed up to 500 birds, including a hundred manakins, to learn how they responded to agricultural practices and deforestation.

"Although they prefer forests, we found that these manakins also leave the forest sometimes and travel between fragments," Sekercioglu said. He and his team found that the manakins digest their food very fast—in less than half an hour—and can move several hundred meters in that short time, dispersing seeds across a largely deforested landscape.

Conservation in a Cup

So how can java junkies get their caffeine fix and support pro-bird coffee farming at the same time?

Buying shade-grown coffee, farmed under a forest canopy, can be a good start. Research done a decade ago by Greenberg showed that shade-coffee plantations help bird conservation by providing a nesting habitat that's similar to that of a forest. And fans of shade coffee say its benefits go further than eco-friendliness, since it tastes sweeter than most coffee grown in the sun.

Beyond this, coffee lovers can buy coffee that's marketed as bird friendly.

But some experts warn that eco-marketing terms like these are not interchangeable. "Many people think that shade coffee means bird-friendly coffee," said Stuart Pimm, the chair of conservation ecology at Duke University and a member of National Geographic's Committee for Research and Exploration and Conservation Trust. "Sometimes it is, sometimes it isn't," Pimm said.

In parts of Central America, for example, coffee is grown in the shade of non-native trees that don't attract native birds. "That is shade coffee," Pimm said, "but it's not bird friendly." Neither is shade coffee grown on farms that rely on pesticides.

One reliable option: Look for the Smithsonian Migratory Bird Center's "Bird Friendly" certification.

Organic coffees that bear this trademarked seal of approval are grown under strict ecological standards that require farmers to have three layers of forest cover and at least 11 species of canopy trees, among other conditions, all designed to benefit birdlife. So far, this coffee is being grown on just 35 farms and is available mostly in North America and Japan.

But for coffee lovers who crave their caffeine with an eco-friendly kick, that's one nice way to wake up and smell the java.


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New breed of bird is both chicken and egg

The naturally bred Giri Raja chicken offers benefits to poor farmers at a time of high food prices and avoids the culling of young male chicks

Juliette Jowit, guardian.co.uk 26 Aug 08;

Centuries ago wild fowl must have seemed a wonderful animal to domesticate. They produced eggs while they were alive, meat when they were dead, and lived on household scraps.

But in the last few decades modern chickens have emerged which are almost unrecognisable from their ancestors: bred with huge breasts to eat or only to produce eggs, and always as quickly as possible.

Now scientists have turned back the tide and developed a new variety which will produce both eggs and meat.

Animal welfare experts claim the Giri Raja – Forest King – chickens will have huge benefits. Less intensive breeding means they will not have health problems because they are not forced to grow fast and disproportionately. And because they produce both eggs and meat billions of male laying birds will not have to be slaughtered at birth each year.

Scientists at Bangalore's Veterinary College in India developed the new chicken from a traditional breed using natural breeding techniques. They hope the dual-purpose chickens will help independent and subsistence farmers, especially in the developing world, because the birds will be better able to survive outside specialist factory farms.

Joyce D'Silva, ambassador for the charity Compassion in World Farming, said the new brown-feathered chickens looked at first glance like most of the world's more than 50bn intensively-farmed birds – until you see them walk.

"The average battery chicken walks in a very ungainly way, they kind of lurch from side to side when they walk; this chicken looks a lot more agile and healthy," she said.

As well as avoiding the pain of fast-growing bodies on immature legs and skeletons, the Forest King chickens need few drugs, can live a more "free range" life, and does not need to be fed soy protein which has been linked to mass forest clearance in South America, said D'Silva.

"If you took the average chicken from a factory farm and plonked it down in a small household's backyard in Bangalore it wouldn't be able to run away from a cat or dog if it needed to. And it would probably get ill very quickly because its immune system is seriously undermined," she said.

"This chicken, if a dog was trying to catch it, could fly away, it's sturdier and does very well on scavenging household waste."

In recent years some farmers have returned to traditional dual-purpose breeds in response to concern about factory farming, but so far these have been in tiny numbers. The Indian scientists hope their new breed will be available to millions of ordinary people.

Professor R N Sreenivas Gowda, vice chancellor of the Veterinary College, Bangalore, told the Ecologist film unit the main aim was to help families in India who were struggling to feed themselves, especially when food prices were rising.

"We're encouraging the farmers so that they can have healthy food in their diets ... and also they can make income, make money, out of this," said Gowda.

However the National Farmers Union said even if the breed could survive in the UK it would only ever be in a small minority.

Sam Hawkes, the NFU poultry advisor, said: "It's down to the economics. A fast-growing breed costs less to produce and therefore costs less to the retailer.

"It's all being driven by what the consumer wants, and farmers and companies have been driven to produce that."


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Could US$100 Oil Turn Dumps Into Plastic Mines?

Kate Kelland, PlanetArk 27 Aug 08;

LONDON - Sparked by surging oil, a dramatic rise in the value of old plastic is encouraging waste companies across the world to dig for buried riches in rotting rubbish dumps.

Long a symbol of humanity's throw-away culture, existing landfill sites are now being viewed as mines of potential which as the world population grows could also help bolster the planet's dwindling natural resources.

"By 2020 we might have nine billion people on the planet, we could have a very big middle class driving millions more cars, and we could be in a really resource-hungry world with the oil price climbing and a supply situation in Libya, Russia and Saudi where natural gas is limited," said Peter Jones, one of Britain's leading experts on waste management.

"It is those drivers, those conditions, which will encourage the possibility of landfill mining."

In Britain alone, experts say landfill sites could offer up an estimated 200 million tonnes of old plastic -- worth up to 60 billion pounds at current prices -- to be recovered and recycled, or converted to liquid fuel.

As many oil analysts predict oil prices will stay above US$100 a barrel, waste experts in America, Europe and across Asia have been conducting pilot projects to recoup old plastic and other waste materials.

Prices for high quality plastics such as high-density polyethelenes (HDP) have more than doubled to between 200 and 300 pounds (US$370-560) per tonne, from just above 100 pounds a year ago, according to experts in the waste industry.

With this in mind, leaders of the world's waste management industry are planning to come together in London in October for what is being billed as the first "global landfill mining" conference.

"Once plastic is in a landfill site, it pretty much sits there doing nothing -- and the beauty of that is that you're able to go back and recapture it in the future," said Peter Mills, a director of waste and recycling company New Earth Solutions, who is scheduled to speak at the conference.

"There are some really buoyant prices around because plastic is all manufactured from oil, so as the raw price of oil goes up, every commodity derived from it goes up accordingly."

According to the Organisation for Economic Cooperation and Development (OECD), the amount of household rubbish thrown out across the world is expected to rise to about 3 billion tonnes a year by 2030 from 1.6 billion tonnes in 2005 -- or about 1 kg (2.2 lbs) per person per day in 2005.

Many of the world's rich countries send about half of that trash to landfill, but the OECD projects that rate will fall to 40 percent by 2030 as governments promote recycling -- of materials such as metals, glass and paper -- or incineration to generate heat or electricity.

"Over a period of a very long time -- many decades -- we have had a policy of burying whatever we can in landfill sites -- so there are valuable resources in those sites," said Steve Whatmore, of Orchid Environmental, a waste and recycling firm.

"And wherever there are valuable resources, there is always the temptation to investigate whether its worth recovering them. The logic is sound, but the practicalities are complex -- and you have to balance those out with the commercial viability."


FROM "SCAVENGING" TO "LANDFILL MINING"

Landfill mining -- digging in dumps for valuable materials -- is hardly a new concept, and already viable for some.

Images of poor, often homeless people scavenging waste to sell from landfill sites in Asia and South America have already provided evidence there is money to be made from other people's rubbish.

William Hogland, a professor in Environmental Engineering and Recovery from the University of Kalmar in Sweden, also points to previous instances of dumpsite mining in Israel in the early 1950s where the soil -- enriched with rotting waste -- was recovered and recycled to improve soil quality in orchards.

And certain US states have since the 1980s mined waste from landfills to be used as fuel for incineration to produce energy.

"Several pilot studies have been carried out for research or pre-feasibility studies in countries in Europe, but also in China, Japan and India," he said.

For global waste experts, not everyone's rubbish is the same: different sites have different potential and an individual country's or region's dumps show characteristics relating to the culture, historical development and economic climate.

"For example, landfills in Sweden dating from the 1960s have a lot of waste building material, reflecting the construction boom of that era," said Hogland.

"And other landfills have very specific waste -- like those used by vehicle breakers -- which have high concentrations of aluminium, copper and iron scrap."

"The value of these materials varies daily with global market prices, and today there is considerable demand for scrap metal from China, for instance."

But in Britain, it is in the millions of tonnes of plastic that people threw out in a pre-recycling era that experts see a potentially lucrative future.

That potential is clear to Chris Dow, managing director of the first so-called "closed loop" recycling plant in Britain able to recycle plastic bottles to a standard high enough for re-use as food packaging.

Closed Loop London is one of only six similar plants around the world in Austria, Germany, Mexico, Switzerland and the United States and processes polyethylene terephthalate (PET) plastic, used for water and drinks bottles, and high-density polyethylene (HDP). It has the capacity to recycle 35,000 tonnes each year.

A passionate recycler, Dow is convinced there is value buried in rubbish dumps, but angry that talk has turned to investing in technologies to harvest it rather than focusing on stopping more plastic from being dumped now.

"Just imagine the resources that are lying in those landfills -- it could be incredible," he told Reuters.

"But the insane thing is that we are talking now about investing millions into tapping into a resource under the ground, when the real tragedy is that every week we're still dumping tonnes and tonnes of plastic into more landfills. It's an act of vandalism against the environment." (Editing by Sara Ledwith)

Conquering the World's Waste Mountains
PlanetArk 27 Aug 08;

Waste management experts around the world are starting to consider digging up old trash from existing landfill sites to recycle decades-old plastics and other materials into new products or energy sources.


But at the same time, the world is also seeking to reduce the mountains going into landfill by encouraging people to recycle more before it is thrown away, according to a Reuters survey of collection in major cities worldwide.

Here are some facts and figures about the world's waste:

World household rubbish output is projected to rise to about 3 billion tonnes a year by 2030 from 1.6 billion tonnes in 2005 -- or about 1 kg (2.2 lbs) per person per day in 2005, according to the Organisation for Economic Cooperation and Development.

Richer nations send about half their trash to landfills but the rate is expected to fall to 40 percent by 2030 as governments promote recycling, for instance of metals, glass and paper, or incineration to generate heat or electricity.

No country has hit upon a magic clean-up formula with policies varying widely. Countries such as Japan, the Netherlands, Switzerland and Denmark are among the best performers with least sent to landfills, according to the OECD.

In poorer nations, people are more careful about what they throw away but most trash that is collected goes to landfills.

Here is a sample of how major cities are tackling trash:


BEIJING

Almost all bins in Beijing on the streets and in housing complexes are separated into recyclable and non-recyclable compartments, but public awareness is still relatively low so they are often filled with a mix of all kinds of rubbish.

Much of the real recycling is done by migrant workers, often using heavily loaded tricycles, who collect everything from paper to bottles and styrofoam for resale. They sell the waste, usually by weight, to middlemen with trucks.

The Beijing city municipal administration commission says 88 percent of waste goes to landfills.


NEW YORK

Since the Fresh Kills Staten Island dump closed in 2001, New York City has exported 45,000 tonnes per day of trash to states as far away as Ohio. Barges and trains take away most of the trash. The loads were once carried by trucks, but rising fuel and emissions costs have led to the shift.

About 30 percent of the waste stream is diverted through recycling. That makes New York a leader among cities on the East Coast, but a laggard compared to major cities on the West Coast. A 5 cent bounty for most beverage containers has led to a small recycling industry in which the young, old and homeless carry enormous bags and carts of bottles to collection areas.

Businesses are required to stack cardboard for recycling, with mixed results when it rains. Recycling of New York City paper and plastic are sputtering industries on the outskirts of the city. As tipping costs at faraway landfills rise, trash is becoming a bigger headache for New York.


LONDON

Collections vary by district. The south eastern London borough of Bexley is one of the greenest, composting or recycling 40 percent of household waste. Residents are given green, maroon and black boxes to separate out paper and card, cans and plastic bottles and glass. These are collected fortnightly. Brown bins, collected weekly, are used for garden and kitchen waste for composting. Since 1994 Bexley council has offered households subsidised composting bins.

Charities also collect textiles and shoes. Every month the council runs a "Nappachino's" morning to persuade young mothers to use fabric nappies that can be re-used.

Britain's first food-grade plastics recycling plant was opened in London in June. The "closed loop" plant processes polyethylene terephthalate (PET) plastic, used for water and drinks bottles, and high-density polyethylene (HDP). It has the capacity to recycle 35,000 tonnes each year.


NAIROBI

Rubbish collection in the Kenyan capital is dominated by small private operators who run decrepit trucks. They stop at apartment complexes and street corners to collect rubbish that they then take to landfills, where some of it is burned. The cost of a twice-weekly collection is usually included in the rent for upscale apartments, while poorer city-dwellers pay a few shillings (US cents) a week for the service.

Much of the waste makes its way to one of Africa's biggest rubbish mountains, Nairobi's 30 acre (12.14 hectares) dump at Dandora. Last year, the Nairobi-based UN Environment Programme launched a campaign calling for a clean-up at Dandora, which it said receives 2,000 tonnes of garbage a day, seriously harms the health of local children and is polluting the city. People scavenging at the dump are most at risk.


TOKYO

Households in Tokyo generally divide garbage into recyclable, combustible and non-combustible waste. New technology at trash-burning plants allows residents to throw out most plastics, leather and rubber as "combustible" waste, making life easier for residents since combustible waste is collected twice a week, while the rest is collected only once a week.

Recyclables include plastic bottles, aluminium cans and glass. Newspapers and magazines must also be bundled up separately to be picked up once a week. There is no charge for collections, with the exception of oversized trash such as furniture and electrical appliances.

In Japan as a whole in 2005-06, 19.7 percent of trash was sent for recycling, 77.4 percent to incineration, some of it generating electricity, and just 2.9 percent to landfills such as in Tokyo Bay, according to the Environment Ministry.


MOSCOW

Households dispose of garbage at sites in housing developments. The containers often overflow with rotting food, nappies and broken furniture and packs of semi-feral dogs which roam the city sometimes tear through the bags and spread waste.

The rubbish is sent to both landfill sites and incinerators -- the government aims to build another six incinerators by 2012 at a cost of US$2.5 billion, according to environmental group Greenpeace which opposes the planned siting of incinerators near Moscow suburbs.


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Wind turbines pose danger to migratory bats: study

Yahoo News 26 Aug 08;

Their deaths could also affect ecosystems on the bats' migration routes as they eat thousands of insects, including many crop pests, every day

Wind turbines pose a greater danger to bats than birds as the power generators produce a sudden drop in air pressure that causes the nocturnal animal's lungs to burst, a study has found.

While the turbines' blades may endanger birds, Canadian researchers found that 90 percent of bats found dead at wind farms had suffered internal hemorrhaging caused by the drop in air pressure, a condition known as barotrauma.

Only about half of the migratory bats showed any evidence of direct contact with the blades, said the study published in the August 26 edition of the journal Current Biology.

Bats, which emit a sonar-like sound to detect objects, rarely collide with man-made structures, the researchers noted.

"An atmospheric-pressure drop at wind-turbine blades is an undetectable -- and potentially unforeseeable -- hazard for bats, thus partially explaining the large number of bat fatalities at these specific structures," said Erin Baerwald of the University of Calgary in Canada.

"Given that bats are more susceptible to barotrauma than birds, and that bat fatalities at wind turbines far outnumber bird fatalities at most sites, wildlife fatalities at wind turbines are now a bat issue, not a bird issue."

Birds have more rigid lungs than bats that allow them to more easily withstand sudden drops in air pressure.

The lungs of bats are balloon-like, with two-way airflow ending in thin flexible sacs surrounded by capillaries. A drop in air pressure can cause the sacs to expand too much, making the capillaries explode, the researchers said.

Bat deaths caused by wind turbines could have far-reaching consequences, the researchers warned.

While bats can live for 30 years or more, most only produce one or two pups at a time and not necessarily every year.

"Slow reproductive rates can limit a population's ability to recover from crashes and thereby increase the risk of endangerment or extinction," said Robert Barclay of the University of Calgary.

Their deaths could also affect ecosystems on the bats' migration routes as they eat thousands of insects, including many crop pests, every day, the researchers added.

Wind farms put pressure on bats
Richard Black, BBC News 26 Aug 08;

Bats are at risk from wind turbines, researchers have found, because the rotating blades produce a change in air pressure that can kill the mammals.

Canadian scientists examined bats found dead at a wind farm, and concluded that most had internal injuries consistent with sudden loss of air pressure.

Bats use echo-location to avoid hitting the blades but cannot detect the sharp pressure changes around the turbine.

The scientists say wind farms are more of an issue for bats than for birds.

"An atmospheric pressure drop at wind turbine blades is an undetectable - and potentially unforseeable - hazard for bats, thus partially explaining the large number of bat fatalities at these specific structures," said Erin Baerwald, who led the research team at the University of Calgary.

Route cause

Bat deaths around wind farms have been widely documented across Europe and North America.

Two years ago, EU nations formally agreed to make developers aware of the risks, and find ways of monitoring bat migration routes.

Earlier this year, a bid to build a wind farm near Bideford in north Devon was turned down because of the potential impact on the mammals.

But among all this, understanding of how turbines affect bats has been lacking.

The Calgary team collected carcasses of hoary and silver-haired bats killed at a wind farm in south-western Alberta.

Examinations showed that fewer than half had external injuries that could have been caused by collision.

But about 90% had internal haemorrhaging, most notably in the chest cavity, a condition that puts pressure on the lung and can be fatal.

The idea is that the pressure around a rotating turbine blade is lower than in the surrounding air. A bat flying into the low-pressure zone finds its lungs suddenly expanding, bursting capillaries in the surrounding tissue which then becomes flooded with blood.

Birds, which have more rigid and robust lungs, do not undergo the same trauma from a sudden drop in pressure.

"Given that bats are far more susceptible to barotrauma than birds, and that bat fatalities at wind turbines far outnumber bird fatalities at most sites, wildlife fatalities at wind turbines are now a bat issue, not a bird issue," said Ms Baerwald.

Some research groups are investigating ways to keep bats away from wind farms, and a University of Aberdeen group recently suggested radar emissions might act as a "bat-scarer".

The new research is reported in the journal Current Biology.


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