Polar Bears Starving Due to Climate Change, Researchers Confirm

Rossi left and Ellen DeGeneres winner of the awards for favorite animated movie voice favorite daytime TV host and favorite comedic collaboration posing in the press room at the People's Choice Aw

"This study is going to become the new hallmark for understanding polar bears' ecology", Derocher says. This means that any food they were able to scavenge on land during this time was simply not enough. "You get a much more holistic perspective of the ecology of the bears".

That sums up the life of a polar bear.

'We found a feast and starvation lifestyle - if they missed out on seals it had a pretty dramatic effect on them, ' said a biologist who led the research.

To achieve this, they calculated the bear would need to eat either one adult ringed seal, three subadult seals or 19 newborn ringed seal pups every 10-12 days to remain in energy balance.

That sea ice is shrinking at rates of up to 13 percent per decade across the Arctic, NASA satellite imagery shows, leaving the bears with less productive hunting area.

The Beaufort Sea population that Pagano studied has declined by about 40 percent since 2005. That bear turned out to probably have been ill.

A new study on polar bear metabolism, behavior, and foraging success sheds important light on their energy demands. This assumption was found not to be true. Today, it is estimated that there are approximately 23,000 polar bears living throughout the Arctic.

The five Arctic nations still need to raise more awareness about the link between the changing Arctic environment and polar bear conservation. The species is categorized as "vulnerable". Now, two years year, the World Wildlife Fund has delivered a 52-page report that scores the efforts made by Canada, the U.S., Russia, Norway and Denmark-Greenland.

IUCN experts estimate that the population could decrease by 30 to 50% if the loss of sea ice continues. Shot by Paul Nicklen and Cristina Mittermeier of the nonprofit group Sea Legacy, and published on National Geographic in early December, the video ignited a firestorm of debate about what scientists know, and don't know, about the impacts of global warming on polar bears. "We will see more bears starving and more of them on land, where they will get into trouble by interacting with humans".

More news: 'State of the Uniom' typo causes reprint of tickets for President's address

Over the course of the study, four of the nine seals did not reach that calorie level and lost a combined mass of 20 kilograms (44 pounds), which "reinforced the starvation lifestyle the polar bears have", Pagano said.

Climate change is preventing polar bears from catching enough prey to meet their needs, with melting ice forcing them to expend excessive amounts of energy to track down seals, a study has found.

The GPS told them the distances the bears wandered, and the video camera recorded if the bears were successful in killing and eating prey. As a leader in conservation, the work of San Diego Zoo Global includes on-site wildlife conservation efforts (representing both plants and animals) at the San Diego Zoo, San Diego Zoo Safari Park, and San Diego Zoo Institute for Conservation Research, as well as worldwide field programs on six continents. The bears can swim for long distances, but prefer not to as it uses up vital energy resources.

"An increasing proportion of bears are unable to meet their energy demands", the authors concluded.

Derocher said since the study used a small sample size over a short period, follow-up research should follow more animals over a longer stretch.

"In a population, there are always individuals who cope better or worse with any changes". And every additional mile that a polar bear has to traverse under its own power is that much more food the bear has to eat.

"In the Beaufort Sea we are seeing that the ice is retreating much further to the north than it had historically", Mr Pagano said.

As a scientist, he stresses that we shouldn't go off of gut feelings, but rather reliable data - "and for polar bears, those (data) aren't there yet". "(The camera) gave a perspective right underneath the bear's chin".

Related News:

Most liked

'Hurt' Mahrez to miss Swansea clash
The business [side] of the transfer window is hard for us to manage but I think it is time now to move on and keep our focus. The Terriers were very negative from the off, played five at the back, and rarely looked like causing the Reds any problems.

Contention Rickie Fowler honors Griffin Connell at Phoenix Open
Palmer missed the cut in last years Waste Management Phoenix Open , but he was runner-up in 2015 and finished fifth in 2013. Got lucky, I kind of hit a bad putt on two, but it hit the back of the cup and went in.

Chlorine gas attack suspected in East Ghouta for third time this year
It was unclear whether White Helmets was suggesting the three people who had been killed died of suffocation. The US and Russian Federation agreed in 2013 to destroy Syria's chemical weapons arsenal by 2014.

The 7 best movies about Groundhog Day
On the other paw, these critters somehow didn't see their shadow, which means we're in for an early spring: Charles G. During prohibition, Phil threatened to impose 60 more weeks of winter if he wasn't allowed to have the hard stuff.

Assassin's Creed Origins Adding New Game Plus Mode
This news comes from Assassin's Creed Community Manager Dominik Voigt on Reddit, who replied to a thread saying: "New Game + is coming".

Irving scores 27 points as Celtics edge Nuggets 111-110
The veteran guard now has 38 games of 20-plus points this season, the fifth-most in the National Basketball Association . Only Trey Lyles stands out among the second team with 20 points, 7 rebound and 3 assists in 20 minutes of action.

Kenya: Raila Odinga Swears Self People's President
Kenyan opposition leader Raila Odinga has taken an unofficial oath to be " sworn in " as the nation's people's president. A huge crowd of Odinga's supporters gathered Tuesday at Nairobi's main park to attend the event .

Google removed 700000 malicious apps from the Play Store in 2017
A report released on Tuesday (30 January) revealed that 700,000 malicious applications were removed from the market in 2017. This is especially true for apps that are region locked where the original app doesn't even appear in the search results.

Mike Fisher puts retirement in rearview and rejoins Predators' roster
Indeed, Fisher intends to begin skating and working out on his own before joining the entire team for practices. Fisher had 18 goals and 24 assists last season as Nashville earned its first Western Conference title.

US 'Kremlin List' means nothing to Russia - PM
Treasury Department released the highly anticipated " Kremlin List " in retaliation for alleged Russian election meddling. Treasury blacklist, neither businessman is considered to be close to the Kremlin .

John Wall to Undergo Knee Surgery, Could Miss 6-8 Weeks
According to The Washington Post's Candace Parker, Wall will undergo a knee procedure tomorrow to "clean up" the area. In his absence, All-Star Beal will have to pick up the slack alongside Tomas Satoransky who will be replacing him.

Vaping causes cancer, says study
The findings also support bids to regulate e-cigarettes based on their tobacco-like effects, such as the FDA's former approach . Researchers continue to conduct studies that investigate the possible benefits and dangers of using e-cigarettes.

Watch celebrities fill-in for Alexa in Amazon's hilarious Super Bowl ad
Right now, it remains unclear when Amazon will bring the feature to Apple's iOS platform, but we'll let you know when it happens. Amazon's just gained another useful new trick: It can now send text messages... but only if you have an Android phone .

On China visit, Britain's May focused on post-Brexit future
Mr Trump said: "Around the world, we face rogue regimes, terrorist groups and rivals like China and Russian Federation that challenge our interests, our economy, and our values".

Trump Signs Order To Keep Guantanamo Bay Detention Center Open
The order says the US maintains the option to detain additional enemy combatants at the detention center in Cuba, when necessary. The Trump administration has initiated criminal prosecution for several suspected ISIS fighters since taking office in 2017.