Friday, March 15, 2013

Argentine Wildlife Gain 2 New Marine Parks

Two new large wildlife reserves have been created in Argentina's Patagonian coast, good news for the area's diverse wildlife.

The parks, Isla Pingüino Coastal Marine Park and Makenke Coastal Marine Park, are home to penguins, sea lions, dolphins and other animals, which will receive more protections under the designation, according to a release from Wildlife Conservation Society (WCS), an environmental group.

The Isla Pingüino Coastal Marine Park extends 12 miles (19 kilometers) out to sea, encompassing some 720 square miles (1,800 square kilometers) of ocean and cliff-bordered coastline. It's home to South American sea lions, red-legged cormorants and one of the biggest colonies of imperial cormorants in the world (with more than 8,000 breeding pairs). The park also hosts one of the only colonies of rockhopper penguins in the country, according to the WCS.

The Makenke Coastal Marine Park, farther to the south, is home to the biggest group of rare red-legged cormorants in the country. Visitors can also find dolphin gulls and Commerson's dolphins in the area, the WCS noted. [Photos of the new marine reserves.]

Each park, established by the Argentine National Congress, is known for its historical significance. In 1833, Charles Darwin voyaged to Isla Pingüino on the HMS Beagle, writing about the wildlife he found there. Ferdinand Magellan passed by what is now Makenke Coastal Marine Park on his first voyage around the world, marooning and executing a group of mutineers on the coast there.

'We commend the Government of Argentina for their conservation stewardship in creating this new network of marine protected areas,' said Cristián Samper, WCS president, in a statement. 'Isla Pingüino and Makenke Coastal Marine Parks now protect vital wildlife populations for posterity and create new opportunities for Argentina's ecotourism industry.'

Email Douglas Main or follow him @Douglas_Main. Follow us @OAPlanet, Facebook or Google+. Original article on LiveScience's OurAmazingPlanet.

Copyright 2013 LiveScience, a TechMediaNetwork company. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

Wednesday, March 13, 2013

Whales Trap Dinner with Mouthful of Swirling Bristles

Humpback and bowhead whales create their own food nets from specialized bristles in their mouths to more efficiently nab fishy morsels, a new study of baleen whales suggests.

When these whales feed, some open their jaws wide to gulp mouthfuls of seawater, whereas others swim with half-open mouths (called ramming or skim-feeding). Both rely on baleen, a system of hairy bristles that line their mouths and trap food. The new study, published today (March 13) in The Journal of Experimental Biology, shows that the baleen of bowhead whales and humpback whales is not the passive structure it was thought to be, but forms a tangled mesh in water that streams through it as the animals swim.

And how the baleen gets morphed is different depending on the specific whale's feeding style, the study found.

'Everyone assumed baleen works like a sieve,' study author Alexander Werth, a biologist at Hampden-Sydney College, Va., told LiveScience. But as soon as he put pieces of baleen in a flow tank, 'it became immediately apparent that it was a dynamic tissue rather than a static one.'

Baleen is made up of keratin, the protein found in hair and fingernails, which forms large plates that enclose a fibrous inner core. Whales typically have about 300 plate structures on either side of their mouths, perpendicular to the direction that water flows. The whales' tongues wear away the inner edges of the plates to create a fringe that traps krill and other tasty morsels.

Baleen biomechanics

Werth wanted to compare the biomechanics of the bowhead whale (Balaena mysticetus) with that of the humpback whale (Megaptera novaeangliae). He placed pieces of baleen from these whales in a giant tank, and pumped water and small latex beads (stand-ins for the food morsels they filter from water) through them, observing this with an underwater camera.

Werth tested small sections of each kind of baleen at water speeds between 2 and 55 inches per second (5 and 140 centimeters per second), which is comparable to whale swimming speeds. Werth also varied the angle of the baleen between parallel and perpendicular to the flow. He observed how many beads the baleen bristles trapped for at least 2 seconds.

The single baleen plates trapped the most beads at the lowest water speeds, the results showed. As the water speed increased, the bristles streamed out - like hair blowing in a strong wind - creating gaps where particles could slip through.

But baleen isn't found in single plates in a whale's mouth, it's found in rows, so Werth tested a small rack of six baleen plates. Now the bristles formed a tangled net in the flowing water, with most beads being trapped at about 28 to 31 inches/s (70 to 80 cm/s) - exactly the speed bowhead whales swim when they're 'ram' feeding.

'The first thing I saw was the size of that net depends on how fast the waters are flowing through it and in what direction,' Werth said. 'The fringes from adjacent plates would tangle up and make a really dense knot.'

Humpback whale baleen was shorter and coarser than bowhead baleen, and captured fewer beads.

Feeding styles

The findings reveal how the baleen of bowhead whales and humpbacks differs biomechanically. Those differences explain the specialized feeding styles of the two types of whales: Bowheads feed by continuous ram feeding at slower speeds, whereas humpbacks feed in intermittent gulps at higher speeds.

The baleen of humpback whales performed best at the same speed as that of bowheads, despite the fact that humpbacks typically swim faster than bowheads when feeding.

'This is a fascinating study,' marine ecologist Ari Friedlaender of Duke University, who was not involved in the study, told LiveScience in an email, adding he was surprised that the bowhead whale baleen functioned better at higher flow speeds than the humpback whale baleen.

'We think of [bowhead] whales generally as slow-feeding animals that are basically mowing the lawn and that humpback whales are more energetic and feed faster,' Friedlaender said, but it appears humpbacks may actually be moving at a similar speed while feeding.

Werth also hopes to explore how pollutants affect the whales' baleen. 'I'm really worried about what would happen if the filter gets clogged with oil or debris,' he said.

Follow Tanya Lewis on Twitter @tanyalewis314. Follow us @livescience, Facebook or Google+. Original article on LiveScience.com.

Copyright 2013 LiveScience, a TechMediaNetwork company. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

British zoo sends 6 endangered macaws to Bolivia

LA PAZ, Bolivia (AP) - Six endangered macaws have been flown from Britain to Bolivia in hopes that they can help save a species devastated by the trade in wild animals, international conservation experts said Tuesday.

The birds, with blue wings and a yellow breast, arrived last week at a conservation center in northeastern Bolivia, close to their natural habitat, and the local Noel Kempff Foundation said it hopes to breed or release them.

The birds were long captured for sale as pets and no more than 130 of the blue-throated macaws are believed to still exist in the wild, according to the International Union for the Conservation of Nature, which lists the birds as a critically endangered species.

'Thousands of the birds were taken from the wild in the '70s and '80s,' said Alison Hales, director of the Paradise Park zoo in Hayle, a town in England's Cornwall district that bred the six birds. 'There are thousands in captivity, while there are mere hundreds in the wild.'

Hales, chairman of the board of the World Parrot Trust, said by telephone that conservationists have been trying for about 10 years to 'maximize the breeding potential' of the few birds still remaining. But 'some years there haven't been any chicks at all.'

'You do your best to maximize the birds still in the world,' but when that isn't working, 'you think of doing something else,' she said.

The director of the Bolivian foundation, Lorena Kempff, said experts there have not decided if the birds will be kept for breeding or released. 'It will depend on the number of examples and characteristics of other macaws that can be repatriated,' she said, referring to current efforts to bring more birds. 'In any case, they are in excellent condition for both objectives.'

Parrot Trust Director James D. Gilardi said by telephone that there are 'only about 10 to 12 pairs of birds that attempt to breed in a good year,' while in some none breed at all.

He said the conservationists working in the wild try to find as many eggs as possible and do whatever possible to protect them. That may mean propping up trees to keep them from falling or building roofs or drains to keep them from being drowned by rain.

Once they hatch, 'we work with them, measure their growth rate... make sure they're developing properly' and give them food or other care if not. While that has worked, the problem is that 'we're just so close to extinction that we we're doing just isn't enough.'

The problem, he said, is that so few birds are spread over an area half the size of Connecticut. Once two finally meet, he said, they share a human-like issue: 'You have to decide you like them and they have to like you.'

The blue-throated macaw is native to the Moxos Plains, a vast savanna in the Amazon basin of northern Bolivia. The IUCN said all of its known breeding sites are on private cattle ranches, where cutting of trees has reduced the number of suitable nest sites.

Most macaws can live for 40 to 60 years in the wild.

___

Associated Press writer John Rice contributed to this report from Mexico City.

'Killer' Military Dolphins Go AWOL for Love? Maybe Not



Ukrainian officials are reportedly denying a Russian state news story that alleges three of its military-trained dolphins went AWOL during a training exercise in Crimea earlier this month.

Russia's RIA Novosti reported Tuesday that the rogue pod simply never returned from a training exercise and said an expert speculated the underwater mammals probably went in search of mates. The report cited Ukrainian media as the basis for the story, but also noted that Ukraine's Defense Ministry denied the incident.

After the RIA Novosti story was picked up by international outlets, including several in the U.S., Ukrainian media reported that officials there said the story was ' absolutely fabricated.' One Russian news report said that the document upon which the original stories were based was a low-quality forgery, as The Week pointed out.

That isn't to say that some militaries do not use the adorable marine animals for life-and-death military matters. As ABC News has reported, the U.S. Navy has used bottle-nosed dolphins to detect mines and enemy divers.

In his memoir ' The Red Circle,' former Navy SEAL Brandon Webb described killer dolphin-evasion as part of his diver training.

'They train these animals to track down enemy divers, outfitting them with a device strapped to onto the head that contains a compressed gas needle. Once the dolphin has tracked you down, it butts you; the needle shoots out and pokes you, creating an embolism. Within moments, you're dead,' Webb wrote. 'We could tell when those little b******s were approaching because we could hear their sonar clicking - but that didn't make it any easier to escape them. [they're] way too fast for us or any other human being to outrun them.'

CLICK HERE to return to The Investigative Unit homepage.

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Tuesday, March 12, 2013

San Diego Zoo Welcomes Season's 1st Condor Chick

The San Diego Zoo welcomed its first California condor chick of the hatching season on Feb. 24, the zoo announced yesterday (March 11), as part of their breeding program to help save the endangered species.

The two-week-old condor, dubbed Wesa, is doing well and has a healthy appetite, eating up to 15 mice a day, the zoo said in a statement. Like other condors born at the zoo, Wesa will eventually be released into the wild.

Senior condor keeper Ron Webb has been caring for the baby bird with the help of a condor hand puppet.

'The puppet is like a fancy glove,' Webb said in the statement. 'It covers our hands so the chick does not get any beneficial experiences from people. We do not want it imprinting on people or getting used to us when it goes out into the wild. We want it to be a nice, wild animal, not relying on people for food.'

Webb has also been monitoring the other condor eggs set to hatch this season to estimate how long before each chick pips, or breaks through its egg shell. He uses a technique called candling that shines a bright, warm light on the eggs and allows him to see how the chick is developing. In a photo released by the zoo, Webb is examining an egg on March 11 that he estimates will hatch in 21 days.

California condors are listed as critically endangered. When the zoo began its captive breeding program in the 1980s, there were only 22 birds in the wild. Since then, the zoo has hatched 173 chicks and released 80 birds into the wild. There are now an estimated 400 wild birds.

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New center offers help for dogs consumed by fear

LOS ANGELES (AP) - People want their dog to be a friend, not afraid.

But sometimes, fear grips dogs so tightly they shake, cower, bite, growl or pee. It can be constant, painful and hard to overcome. Such dread can consume a dog when it's freed from a cage at a puppy mill or hoarder's home because that's the only life the dog has ever known.

Until now, it was up to animal shelters to ease the fears, knowing if they didn't, euthanasia was the likely alternative. But this week, the American Society for the Prevention of Cruelty to Animals opens its Behavioral Rehabilitation Center at St. Hubert's Animal Welfare Center in Madison, N.J.

It's a two-year research project being financed by the ASPCA.

For now, dogs seized from puppy mills and hoarders will be the primary patients, said Kristen Collins, ASPCA's director of anti-cruelty behavior rehabilitation and director of the center. It will also include some dogs that have been confined for long stretches as evidence in court cases.

Dogs will come from shelters across the country as well as from seizures involving the ASPCA.

It's groundbreaking and exciting, Collins said. 'It's the first ever facility that's dedicated strictly to providing rehabilitation for dogs that are victims of animal cruelty.'

The research will also provide some numbers, Collins said. No one knows how many shy dogs are being placed in homes now. And little is known about how they fare after placement, so center staff will spend a lot of time following up on animals.

There are 27 kennels, an office, real life rooms, treatment rooms and common areas at the center.

The average stay for most dogs will be six to eight weeks, 'but we don't have a hard and fast rule. All dogs are individuals. We will be flexible,' Collins said.

A team of 10 people, including two behavior experts from St. Hubert's, will staff the center. Volunteers and daily caretakers will feed the dogs and clean kennels.

Graduating dogs will return to a shelter for placement and ASPCA shelter partners will continue working with the dogs if needed, Collins said.

St. Hubert's is a longtime disaster partner of the ASPCA and jumped at the chance to be involved, said President and CEO Heather Cammisa.

Fear and anxiety are major factors that can hinder a dog's quality of life, she said.

'If they are hiding in the back of the cage and they are fearful, No. 1, they don't have a good quality of life and, No. 2, they are not going to be selected for adoption and when they go home, they are not really prepared to be the family pet that adopters seek, so this is just a win-all-around,' she said.

The ASPCA spent over half a million dollars on the building, Cammisa said, and will pay all other expenses, including vaccinations, spaying or neutering, treatments and other care.

Weather permitting, the first few dogs will arrive in the next day or two from the Pacific Northwest, Collins said.

They will be the last of 213 Alaskan malamutes seized from a Montana breeder who was convicted in December 2012 of 91 counts of animal cruelty. After being starved and living in filth at the breeding facility, the dogs then had to be kept in kennels as evidence for 16 months while the trial played out.

Malamutes are 75-pound dogs. 'Eighteen of the dogs were pregnant. One pregnant dog only weighed 48 pounds and had eight pups. Only one survived,' said Bob Sutherland of Anchorage, president of the Alaska Malamute Assistance League.

The dogs were released to a humane society in Helena, Mont., where they were spayed and neutered, and another group helped place the animals.

While some dogs are in malamute rescues waiting for the right owner, many have found forever homes. Sutherland and his wife, Nicole McCullough, adopted one.

When the dogs were in evidence custody, Sutherland would visit to help out once a month. Cinder, a 6-year-old female, became his special project.

She is missing the tip of her ear, has broken teeth and a broken toe, injuries Sutherland said were caused when what little food was given to the dogs was thrown over a fence, causing food fights. Many of the dogs are even missing their tongues, he said.

Cinder has come a long way. 'We took a shy dog, and she's all grins and giggles now. If you work with these dogs, they rise and shine. That's why this ASPCA facility is so valuable to us. We were super excited to get these dogs in there to go through a training regimen. It saves us a lot of heartbreak about what we do with these dogs,' Sutherland said.

There will be those dogs that cannot overcome the fear, Collins said. But behaviorists will do everything possible and consider euthanasia as a last resort only if the dogs are suffering from an extremely poor quality of life or if they pose a significant threat to the public, she said.

The center will only be able to handle about 400 dogs during the project's two scheduled years, so it won't take an immediate burden off shelters, Collins said, but if researchers can come up with new ways to ease fear, anxiety and shyness in abused dogs, it could have a widespread impact.

And success could mean another phase in the study, to include fighting dogs, or even cats, Collins said.

___

Online:

- http://www.sthuberts.org

- http://www.malamuterescue.org

- http://www.aspca.org

Monday, March 11, 2013

Endangered sharks to be protected under international law

BANGKOK (Reuters) - An international conference voted on Monday to ban trade in some shark species whose populations have fallen to crisis levels due in part to demand from China, the world's biggest consumer of shark fins for use in soup.

The Convention on International Trade in Endangered Species of Wild Flora and Fauna (CITES) agreed to ban international trade in the oceanic whitetip, the porbeagle and three types of hammerhead sharks unless shipments are accompanied by documentation showing they were caught legally.

Around 7 percent of sharks are killed each year, according to a paper in the Marine Policy journal this year, an unsustainable amount that is threatening certain populations with extinction.

Governments will have 18 months to comply with the restrictions, agreed by a two-thirds majority of the countries at the CITES conference in Bangkok.

If countries are found to be non-compliant, they may be subject to sanctions that can cover trade in all CITES-listed species.

Japan and China, major consumers of shark products, opposed the listing, citing difficulties in identifying the specific species' fins.

They also said regional fisheries management bodies should manage marine issues, rather than CITES, but most countries, including the original proponents in Latin America and the European Union, and environmental NGOs rejected that view.

'In reality we need fisheries management bodies managing the fishing and CITES managing the trade,' said Elizabeth Wilson, manager for global shark conservation at The Pew Charitable Trusts, an NGO.

The vote will require final approval at a CITES plenary on March 14, the final day of the meeting, which is likely given the large majority in favor.

(Reporting by Paul Carsten; Editing by Michael Urquhart)