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:2/11/2015)... DALLAS , February 11, 2015 /PRNewswire/ ... market research report "Access Control Market by Product ... (Commercial, Residential, Military and Defense, Government, Industrial, Healthcare, ... , published by MarketsandMarkets, the Access Control ... by 2020, growing at a CAGR of ...
(Date:2/5/2015)... TRIANGLE PARK, N.C. , Feb. 5, 2015 /PRNewswire/ ... a specialist logistics company and has launched a new ... only Clinical Logistics Organization (CLO).  The new campaign focuses ... emphasis on patient, protocol and shipments. The ... First , aligns Marken,s priorities with its client,s ...
(Date:2/5/2015)... FRANCISCO , January 28, 2015 ... Market Analysis, Size And Segment Forecasts To 2020 has ... global IR camera market is expected to reach USD ... by Grand View Research, Inc. IR cameras help identify ... and are expected to witness surging demand in medical ...
Breaking Biology News(10 mins):Access Control Market Worth $10.4 Billion by 2020 2Access Control Market Worth $10.4 Billion by 2020 3Access Control Market Worth $10.4 Billion by 2020 4Marken Launches New Patient-Centric Campaign 2IR Camera Market Worth $5.10 Billion By 2020: Grand View Research, Inc. 2IR Camera Market Worth $5.10 Billion By 2020: Grand View Research, Inc. 3
... degrees Celsius. But not salt water: Due to ... is below zero. And sea water tends to freeze ... so-called "brine channels," are formed in the ice. The ... remain in a liquid state even at lower temperatures, and ...
... satellite data, a team of scientists led by researchers from ... created a model that can successfully predict the severity and ... the rest of South America months in advance. ... the primary factor that drives the distribution of fires in ...
... rely on animals for pollination, the number of seeds they ... and the successful deposition of pollen. The number of visits ... well as on conspecific plant density. But what if a ... or has very few pollinators visiting its flowers? Will all ...
Cached Biology News:CO2 bonds in sea ice: Small living creatures with major impact 2Ocean temperatures can predict Amazon fire season severity 2Ocean temperatures can predict Amazon fire season severity 3How does a plant survive with few mates or pollinators? A European herb has figured out its own way 2How does a plant survive with few mates or pollinators? A European herb has figured out its own way 3
(Date:3/4/2015)... 04, 2015 PRC Clinical, ... San Francisco Bay Area, will exhibit and present at ... 2015 on March 25th and 26th in Tel ... relationships with Israeli life science companies seeking to conduct ... company’s services span all phases of human trials, from ...
(Date:3/4/2015)... 4, 2015 Vegalab announced the acquisition of ... last year. As part of the acquisition, Ecowin rebranded ... continuing his role as CEO for the company,s Korea ... will work alongside Koo and oversee developments at the ... Koo founded Ecowin in 2008 ...
(Date:3/4/2015)...   ... Therapie, Strahlendosismanagement und IT-Lösungen für die gesamte Kette ... (NYSE: PHG, AEX: PHIA) gab heute seine ... bekannt, der vom 4. bis 8. März in ... Nr. 102 and 110 wird das Unternehmen ...
(Date:3/3/2015)... Experts and industry insiders from around ... the Alltech REBELation exploring innovation, inspiration and world-changing ideas ... its 31st year, Alltech’s annual international conference traditionally draws ... opportunity to join the REBELation at an extra discount ... EST, at which point the standard early registration rate ...
Breaking Biology Technology:PRC Clinical to Present at Inaugural Outsourcing in Clinical Trials Israel Conference 2015 on March 25 and 26th in Tel Aviv 2PRC Clinical to Present at Inaugural Outsourcing in Clinical Trials Israel Conference 2015 on March 25 and 26th in Tel Aviv 3PRC Clinical to Present at Inaugural Outsourcing in Clinical Trials Israel Conference 2015 on March 25 and 26th in Tel Aviv 4Korean Government Program Supports Vegalab's Research and Development 2Korean Government Program Supports Vegalab's Research and Development 3Philips stellt integrierte Bildgebungslösungen auf dem Europäischen Röntgenkongress 2015 vor 2Philips stellt integrierte Bildgebungslösungen auf dem Europäischen Röntgenkongress 2015 vor 3Philips stellt integrierte Bildgebungslösungen auf dem Europäischen Röntgenkongress 2015 vor 4Philips stellt integrierte Bildgebungslösungen auf dem Europäischen Röntgenkongress 2015 vor 5Philips stellt integrierte Bildgebungslösungen auf dem Europäischen Röntgenkongress 2015 vor 6World-renowned Leaders, Authors and Businesspeople Join the Alltech REBELation 2World-renowned Leaders, Authors and Businesspeople Join the Alltech REBELation 3World-renowned Leaders, Authors and Businesspeople Join the Alltech REBELation 4
... Nov. 2, 2011 Cadence Pharmaceuticals, Inc. (NASDAQ: ... developing and commercializing proprietary products principally for use in ... and CEO Ted Schroeder will present the company,s corporate ... Time (3:30pm Eastern Time) during the Credit Suisse Healthcare ...
... 2011 Quanterix Corporation, a company enabling a ... its revolutionary Si ngle Mo lecule ... analytical performance of its Prostate Specific Antigen (PSA) ... improvement in sensitivity over today,s ultrasensitive third-generation PSA ...
... In preparation for its European launch ... 50 years, Human Genome Sciences (HGS) needed a customer ... European commercial sales team. The company had a long ... mobility, industry-specific functionality, speed, and low system maintenance. Veeva ...
Cached Biology Technology:Quanterix Fifth-Generation PSA Test Enables More Sensitive Measurements Following Surgery 2Human Genome Sciences Europe Moves to the Cloud With Veeva CRM to Support New Lupus Treatment 2Human Genome Sciences Europe Moves to the Cloud With Veeva CRM to Support New Lupus Treatment 3
... 'Agilents GeneSpring Workgroup solution is ... managing and mining expression data in ... and is deployed in over 40 ... research organizations worldwide. GeneSpring Workgroup streamlines ...
... LC Sciences provides a genome-wide microRNA ... and proprietary probe design, which enable highly ... (1-3). We have standard arrays for mature ... latest version of the Sanger miRBase database ...
... ProXPRESS 2D Proteomic Imaging System, Basic Package ... a Wide Dynamic Range: The ProXPRESS 2D ... in imaging system for both proteomic and ... provides unparalleled flexibility, enabling the use of ...
... microarrays are custom designed to meet your ... available: 8,455 features per array (2 arrays/1" ... per array (1 array/slide). Features ... - This extended length delivers higher ...
Biology Products: