Thursday, 24 May, 2018

Polar bears go hungry as the Arctic ice melts

Five of the nine polar bears studied did not catch enough seals to maintain their body mass when hunting on sea ice Five of the nine polar bears studied did not catch enough seals to maintain their body mass when hunting on sea iceMARIO HOPPMANN AFP GETTY IMAGES
Carol Daniels | 02 February, 2018, 21:30

"They don't move a whole lot so they're basically laid out as one big buffet for the bear to go around".

"It's quite fascinating to see how the bears are using the habitat and how the habitat is influencing their behaviour, activity patterns and their ability to catch seals, " said lead author Anthony Pagano, a wildlife biologist at the US Geological Service.

Nine female polar bears were fitted for eight to 11 days in April of 2014, 2015 and 2016 with high-tech collars that provided satellite tracking of their movements and captured video to observe behavior and hunting success, U.S. Geological Survey wildlife biologist Anthony Pagano said.

Climate change is having a dramatic impact on Arctic sea ice, forcing polar bears to travel greater distances and making it more hard for them to catch prey.

Even though the Arctic should be flush with seal pups in the month of April, the researchers found numerous bears were spending more energy chasing down prey than they consumed.

The GPS told them the distances the bears wandered, and the video camera recorded if the bears were successful in killing and eating prey.

The article published by USGS after the two year study established that more than half of the bears lost body mass, meaning they were spending energy chasing food and not consuming enough.

Experts estimate the total polar bear population at between 22,000 and 31,000.

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

While the conclusions of Pagano's study may be grim for polar bears, he was buoyed by the fact that technology is finally able to give them concrete reasons for the loss of these charismatic creatures.

It had been thought that polar bears could conserve energy by using a "sit and wait" technique, where they hang around a hole until an unsuspecting seal comes along and they pounce on it. So by taking blood and urine samples before and after the observation period, the researchers could track how much the polar bears had been working. The average bear female burned about 13,200 calories a day - six times more than an active human female.

Nintendo sees Switch lifting revenue to 7-year high of $9bn
The publication asked Kimishima whether the company thinks the Nintendo Switch , released in March 2017, can overtake the Wii. That already exceeds sales of 13.56 million consoles for the Wii U that was on the market from late 2012 through 2017.

South Korea: Cryptocurrency Regulations Come Into Play, Price Responds Negatively
Cryptocurrencies, like bitcoin , owe their popularity to the fact that they function within an unregulated market. In particular, Stellar has been one of the biggest gainers of 2018, pretty much following the path of Ripple .

Ed Sheeran Wins at Grammys 2018, But Where Is He?!
One said: " Ed Sheeran couldn't be here tonight because.it's absolutely shameful that he won this". Luke, claiming the producer verbally, physically and sexually abused her.

"We found that polar bears actually have much higher energy demands than predicted", Pagano said.

This April 20, 2015 photo provided by Busch Gardens shows a polar bear wearing a Global Positioning System video-camera collar lying on a chunk of sea ice in the Beaufort Sea. Because of the video footage, the researchers know that these bears gained weight because they caught seals. There, Arctic warming causes sea ice to break up earlier in the summer and return later in the fall, which forces the bears to spend more time on land.

Fickel points out that the species has seen many warmer periods during their existence, and that they might be able to adjust to a warmer world - as long as there is a healthy seal population, that is.

However, it has been hard for scientists to analyze the behavior and fundamental biology of the bears in this harsh and remote environment, according to Pagano.

"We found a feast and starvation lifestyle - if they missed out on seals it had a pretty dramatic effect on them", said Anthony Pagano, a USGS biologist who led the research, published in Science.

"The high energy requirements of polar bears corroborate previous hypotheses that most terrestrial Arctic habitats, lacking prey as energy-rich as marine mammals, can not provide enough food for polar bears driven to shore by loss of sea ice", Whiteman wrote in a commentary on the paper.

Professor Whiteman said it was important to understand what happens when the bears are fasting.

The loss of sea ice has a domino effect on the species, which, in 2008, became the first animal listed under the Endangered Species Act due to threats from climate change.

"When you're talking about some places extending their melt season to double digits by the end of the decade we're not that far out from that kind of lengthening of the melt period in some parts of the Arctic", he said.

"While the Canadian government has made impressive progress in polar-bear science and policy, there is only so much that can be done on such a limited budget".

Recommended

  • United States  ready to hit Syrian chemical weapons

    United States ready to hit Syrian chemical weapons

    The official was referring to Russia's media offensive to deny its connection to chemical weapons use in Syria . Yet Syria's government isn't the only chemical weapons threat in the region, according to the officials.
    Passenger and her emotional support peacock denied entry on flight

    Passenger and her emotional support peacock denied entry on flight

    Meanwhile here at home, Air Canada will only allow dogs to board as recognized emotional support or psychiatric service animals. Spokeswoman Andrea Hiller says the issues had been explained to the passenger three times "before they arrived at the airport".
    Trump to keep Guantanamo Bay prison open

    Trump to keep Guantanamo Bay prison open

    In the wake of 9/11 attacks, Washington opened a detention center for terror suspects at the military base at Guantanamo Bay. Some were cleared for release under Obama, but have been stranded at Guantanamo under the Trump administration.
  • Justice Department Won't Retry Sen. Menendez After Corruption Case Mistrial

    Justice Department Won't Retry Sen. Menendez After Corruption Case Mistrial

    The spokeswoman said the Justice Department's decision was prompted by a judge's decision last week to acquit Mr. Both denied the allegations, and their 11-week trial ended in November with the jury hopeleslly deadlocked.
    Trump Says North Korea Leadership

    Trump Says North Korea Leadership "Depraved", Warns Of Nuclear Missile Threat

    He was returned to the U.S.in June in a coma and died shortly after, having suffered extensive brain damage at North Korean hands. President Trump called North Korea's government "depraved" and bent on obtaining nuclear weapons to threaten the United States.
    Theresa May warns China to play by worldwide  rules

    Theresa May warns China to play by worldwide rules

    However, Theresa May said that the discussions will be an open occurrence and will be a frank affair on all the issues. The business delegation list includes Pascal Soriot, chief executive officer of AstraZeneca; Mark E.
  • Judge may release detailed coroner records for 1 October victims, shooter

    Judge may release detailed coroner records for 1 October victims, shooter

    It's not clear if Paddock, who killed himself moments after the shooting, fired ammunition on October 1 that Haig had sold him. Haig was still considered a person of interest or whether he was the person the sheriff said remained under investigation.
    RNC wont return money from Steve Wynn yet, despite sexual harassment claims

    RNC wont return money from Steve Wynn yet, despite sexual harassment claims

    The shares recently went down by -10.12% or -$20.31 and now trades at $180.29. (NASDAQ:VSAR) for 120,500 shares. Wynn Resorts, Limited develops, owns, and operates destination casino resorts. $1,979 worth of Versartis, Inc.
    Trump Considering Asking Sessions to Prosecute Mueller, Friends Say

    Trump Considering Asking Sessions to Prosecute Mueller, Friends Say

    The independent counsel investigating Espy had sought documents used in a report compiled by the White House counsel. Mueller could choose to refer his findings to Congress for possible impeachment proceedings.
  • Battle for Azeroth Set to Release This Summer

    Battle for Azeroth Set to Release This Summer

    If you do decide to level up one of the new races from 20 to 110 will unlock a set of cosmetic gear known as Heritage Armor. Players will gain access to two mounts: the Seabraid Stallion for the Alliance and the Gilded Ravasaur for the Horde .

    LMR Partners LLP Reduces Position in Wynn Resorts, Limited (WYNN)

    The average is taken over a specific period of time, like 10 days, 20 minutes, 30 weeks, or any time period the trader chooses. A certain stock may be considered to be on an uptrend if trading above a moving average and the average is sloping upward.
    Disney guests disturbed by unexpectedly headless singing Ursula

    Disney guests disturbed by unexpectedly headless singing Ursula

    The decapitated undersea enchantress continued singing and gyrating while her head hung down her chest on cables. The Walt Disney Company is the parent company of Disneyland and this station .

Tillerson embraces Latin America before visit Tillerson embraces Latin America before visit According to a recent survey by Gallup, only 16 percent of Latin Americans approve of Trump's job and they expect relations to worsen rather than to improve.

Budget 2018: Modi government slashes excise duty on petrol and diesel Budget 2018: Modi government slashes excise duty on petrol and diesel With this reduction, the FM said the government will bear the revenue loss of Rs 13,000 crore in the remaining part of FY18. Because of the excise duty cut, diesel prices had on October 4, 2017 come down to Rs 56.89 and petrol to Rs 68.38.

New Monster Hunter World Update Fixes Matchmaking On Xbox One New Monster Hunter World Update Fixes Matchmaking On Xbox One Players will now get points and complete bounties properly, and will also now be able to use the Hunting Horn without trouble. Fixed a rare issue with gathering points and bounties not working correctly; points counter were not updating correctly .

Cabinets containing thousands of top-secret files sold in shop Cabinets containing thousands of top-secret files sold in shop Australian Cabinet documents are normally sealed and kept confidential until they are released to the public 20 years later. Another paper reveals that Tony Abbott ignored legal advice when handing over insulation Royal Commission documents.

Armenian man killed in Turkish shelling of Afrin Armenian man killed in Turkish shelling of Afrin So far, Turkey has reported the killing of 712 militants, and the destruction of more than 400 militants facilities. Rockets hit two houses and killed one 17-year-old and wounded another person, Anadolu said.

Fox gets "Thursday Night Football" for 5 years, $3 billion Fox gets But Fox's interest - and the NFL's payday - illustrate why the package will remain a part of the league's offerings. As in recent years, Fox will have to share some of the rights for Thursday Night Football .

Orcas Can Say 'Hello', 'Bye-Bye' and 'One-Two-Three' Orcas Can Say 'Hello', 'Bye-Bye' and 'One-Two-Three' From the water, a high-pitched squeak calls out "hello" but the sound is not coming from a human, it's a whale. Wikie was able to repeat a handful of words including "hello", " bye bye", "one, two" and " Amy ".

'Kremlin Checklist' randomly targets Russian enterprise competitors - Finance Minister Siluanov 'Kremlin Checklist' randomly targets Russian enterprise competitors - Finance Minister Siluanov Even if the classified report is great, it won't matter, he said , because the opportunity to "needle the Russians" has been lost. Some Republicans also expressed doubts. "We take notice of the report by the US Treasury Department". "We hope that the U.S.

Roma move on after failing to agree fee for Man Utd defender Roma move on after failing to agree fee for Man Utd defender And it is understood that the player is keen on securing a move away from Old Trafford in search of regular football. This season, Blind has played a bit-part role though his playing time has been hampered through injuries.

EasyJet boss takes pay cut to match predecessor EasyJet boss takes pay cut to match predecessor So let's call this an important start - both in message and in action - aimed at keeping the critical conversation going. EasyJet, a company that is listed in stock market index FTSE 100, is one that has already published its data.

Dead, 185 Wounded in Fighting in Southern Yemen Dead, 185 Wounded in Fighting in Southern Yemen Saudi troops who have been guarding the palace for months stopped the separatists at the gate, preventing them from entering. Hadi, who has been in Saudi Arabia for most of the war, has described the separatists' action as a "coup".

Self-driving taxis set to hit Phoenix later this year, Chrysler says Self-driving taxis set to hit Phoenix later this year, Chrysler says Who will seize that advantage? Waymo did not explain what " thousands " could possibly mean. It could be 2,000 hybrids , or it could be in the tens of thousands , for all we know.

First Look At Ant-Man And The Wasp First Look At Ant-Man And The Wasp Ant-Man and the Wasp will be a sequel to the 2015's Ant-Man and will once again see Paul Rudd as the shrinking superhero Ant-Man. Ant-Man and the Wasp acts as the first, major introduction for Lilly Evangeline's Hope van Dyne as a qualified superhero.

Manchester City make third bid of £55m for Riyad Mahrez Manchester City make third bid of £55m for Riyad Mahrez For me and all the players, always this period is hard for the players and the clubs, but it is important to manage it right'. The Telegraph however claim that Leicester are likely to dismiss bids under £90m for the 26-year-old Algeria global .

Rare Super Blue Blood Moon this Wednesday Rare Super Blue Blood Moon this Wednesday The moon will be blanketed by a reddish tint when the darker part of Earth's shadow will cover it at 6:48 am EST (5:18 PM IST). But Wednesday morning, our silvery satellite will become the focus of renewed attention and for multiple reasons.