Navigation Links
Polar bear diet changes as sea ice melts
Date:1/22/2014

A series of papers recently published by scientists at the American Museum of Natural History suggests that polar bears in the warming Arctic are turning to alternate food sources. As Arctic sea ice melts earlier and freezes later each year, polar bears have a limited amount of time to hunt their historically preferred preyringed seal pupsand must spend more time on land. The new research indicates that at least some polar bears in the western Hudson Bay population are using flexible foraging strategies while on land, such as prey-switching and eating a mixed diet of plants and animals, as they survive in their rapidly changing environment.

"There is little doubt that polar bears are very susceptible as global climate change continues to drastically alter the landscape of the northern polar regions," said Robert Rockwell, a research associate in the Museum's Department of Ornithology. "But we're finding that they might be more resilient than is commonly thought."

Polar bears are listed as a threatened species under the United States Endangered Species Act and are classified as "vulnerable" with declining populations on the International Union for Conservation of Nature and Natural Resources' Red List. Climate warming is reducing the availability of their ice habitat, especially in the spring when polar bears gain most of their annual fat reserves by consuming seal pups before coming ashore for the summer. The new work, led by Rockwell and Linda Gormezano, a postdoctoral researcher in the Museum's Division of Vertebrate Zoology, examines how polar bears might compensate for energy deficits from decreasing seal-hunting opportunities.

In the first paper, published in spring 2013 in the journal Polar Ecology, the researchers provide, for the first time, data and video of polar bears pursuing, catching, and eating adult and juvenile lesser snow geese during mid-to-late summer, when the geese are replacing their primary flight fe
'/>"/>

Contact: Kendra Snyder
ksnyder@amnh.org
212-496-3419
American Museum of Natural History
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Antidepressants for bipolar disorder
2. What is the brain telling us about the diagnoses of schizophrenia and bipolar disorder?
3. The Antarctic polar icecap is 33.6 million years old
4. For polar bears, its survival of the fattest
5. New gene variant may explain psychotic features in bipolar disorder
6. Polar bear researchers urge governments to act now and save the species
7. Dartmouth research offers new control strategies for bipolar bark beetles
8. MBL scientists find bipolar marine bacteria, refuting everything is everywhere idea
9. Missing polar weather systems could impact climate predictions
10. Finding life in the volcanic systems of the Antarctic Polar Front
11. Making sense out of the biological matrix of bipolar disorder
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Polar bear diet changes as sea ice melts
(Date:5/21/2015)... 2015 The Sync Project™ , a ... health, today announced a collaborative partnership with Berklee,s ... center on collaboration on original research, joint course development ... the collaboration, The Sync Project and BerkleeICE are exploring ... in the 2015-2016 academic year.  The ...
(Date:5/20/2015)... Conn. , May 20, 2015 NXT-ID, ... announces that its wholly owned subsidiary, 3D-ID LLC, a ... under Team Battelle for the biometrics technology portion of ... Suite Contract from the Department of the Army. ... recognition products developed for government, law enforcement and security ...
(Date:5/19/2015)... -- Technology is rapidly advancing, outpacing enterprises, ability to secure ... and their management are soon to be rendered obsolete ... as those developed by the FIDO Alliance™. With the ... BYOD, COPE, IoT, and mobile payments, the interconnected online ... In response to the call for seamless, secure, ...
Breaking Biology News(10 mins):The Sync Project Announces Partnership with Berklee College of Music's Institute for Creative Entrepreneurship 2The Sync Project Announces Partnership with Berklee College of Music's Institute for Creative Entrepreneurship 3NXT-ID, Inc Announces Participation as Member of Team Battelle for TIES Contract Award 2NXT-ID, Inc Announces Participation as Member of Team Battelle for TIES Contract Award 3HYPR Corp. Biometric Security Integration Kit Shields Applications and Devices Across the Internet of Things 2HYPR Corp. Biometric Security Integration Kit Shields Applications and Devices Across the Internet of Things 3
... last few decades in old-growth forests of the western United ... is regional warming, according to a U.S. Geological Survey-led (USGS) ... The study found that the increase in dying trees has ... variety of forest types, at all elevations, in trees of ...
... Medical System researchers have discovered there are differing taste ... for future smoking-cessation products. "We learned some ... postdoctoral fellow of the Duke Department of Neurobiology. "This ... taste pathways activated by nicotine, and how these pathways ...
... researchers have identified a cellular mechanism that could someday ... Stephen Helfand and Nicola Neretti and others adds another ... biology, molecular biology, cell biology and biochemistry, first discovered ... the Indy ("I,m Not Dead Yet") gene that can ...
Cached Biology News:Tree deaths have doubled across the western US 2Nicotine activates more than just the brain's pleasure pathways 2Scientists unlock possible aging secret in genetically altered fruit fly 2
(Date:5/20/2015)... (PRWEB) May 20, 2015 Optivia ... assay services for Drug-Drug Interactions (DDI), Metabolism and ... a world leader in assessing impact of drugs ... Pharmacology supported by biosimulation, announced today that they ... allows both companies to expand their product and ...
(Date:5/20/2015)... May 20, 2015  HOSTING, the leading provider ... it is an official partner of the ... Cooperative Members Services Program. This unique collaboration ... cloud services and best practices derived from ... and service providers, enabling member healthcare organizations ...
(Date:5/20/2015)... May 20, 2015 (PRWEB) May 20, 2015 ... Computer Aided Engineering software, today announced the release of ... the 0D and 1D management and analyses of chemical ... Steve Portal, now features a library generation functionality ... new fuel blends and operating conditions for simulations with ...
(Date:5/20/2015)... The Honey Bee Health Coalition applauded the ... of Honey Bees and other Pollinators and the accompanying ... Obama’s Pollinator Health Task Force. The Strategy represents ... bees and other pollinators that support billions of dollars ... clear goals for pollinator health that underscore the importance ...
Breaking Biology Technology:Optivia Biotechnology Inc. and Rhenovia Pharma Sign Partnership Agreement 2Optivia Biotechnology Inc. and Rhenovia Pharma Sign Partnership Agreement 3HOSTING Named Partner of the CHIME Cooperative Member Services Program 2HOSTING Named Partner of the CHIME Cooperative Member Services Program 3CD-adapco’s New DARS v2.10 Release Enhances User Capabilities 2CD-adapco’s New DARS v2.10 Release Enhances User Capabilities 3Honey Bee Health Coalition Ready to Provide Leadership in Implementing National Pollinator Health Strategy 2Honey Bee Health Coalition Ready to Provide Leadership in Implementing National Pollinator Health Strategy 3Honey Bee Health Coalition Ready to Provide Leadership in Implementing National Pollinator Health Strategy 4Honey Bee Health Coalition Ready to Provide Leadership in Implementing National Pollinator Health Strategy 5Honey Bee Health Coalition Ready to Provide Leadership in Implementing National Pollinator Health Strategy 6Honey Bee Health Coalition Ready to Provide Leadership in Implementing National Pollinator Health Strategy 7
... use, reliability and ... convenience, ... availability of easypod(R), the first of its kind,automated device in the ... [somatropin (rDNA origin) for,injection], the company,s treatment for growth hormone deficiency. ...
... proteins in their natural environment and interactions inside ... advanced microscopy technique called cryo-electron tomography, researchers from ... proteins responsible for cell-cell contacts for the first ... publish the first 3D image of human skin ...
... (NYSE: SGP ) was honored by Scrip ... industry awards: Large Pharma Company,of the Year, Management ... Year for,Fred Hassan, Schering-Plough chairman and CEO., ... and achievement,within the pharmaceutical and biotech industries. Scrip ...
Cached Biology Technology:Video and Photo: EMD Serono Launches easypod(R), New Electronic Growth Hormone Injection Device 2Video and Photo: EMD Serono Launches easypod(R), New Electronic Growth Hormone Injection Device 3Video and Photo: EMD Serono Launches easypod(R), New Electronic Growth Hormone Injection Device 4The closest look ever at native human tissue 2Schering-Plough Wins Three of Scrip's Top Pharma Industry Awards 2
... New Concept in Microarrays: Biomedical Photometrics Inc. ... GmbH (Jena, Germany) have collaborated to develop ... ArrayTube System. The DNAscope AT is ... new DNAscope AT automatically reads up to ...
Complement factor B (human)...
Best pricing for 100mg-1.0g scales. Phosphopeptides are our specialty....
... Capillary Electrophoresis Running Buffer was designed to ... demands of todays sequencing labs. As a ... to the gel-based sequencing community Sigma has ... to meet your buffer needs. Scientists at ...
Biology Products: