Navigation Links
Goose eggs may help polar bears weather climate change
Date:12/15/2008

the northern plains, where they eat waste corn and forage in rice fields.

Polar bear and snow geese populations come into contact in the Hudson Bay. Here, some bears routinely live on land for 4-5 months of the year, subsisting on fat reserves. The new research shows that the effects of climate change will bring additional sources of food as the movement of both populations begins earlier each spring. Rockwell and his graduate student, Linda Gormezano, calculated that the rate of change in ice breakup is, on average, 0.72 days earlier each year, and that hatching time is also moving forward by 0.16 days each year. Current trends indicate that the arrival of polar bears will overlap the mean hatching period in 3.6 years, and egg consumption could become a routine, reliable option. At this point, a bear would need to consume the eggs of 43 nests to replace the energy gained from the average day of hunting seals. But within a decade, because timing changes would put bears in contact with even more nests with younger embryos (younger embryos are more nutritious), a bear would only need to consume the eggs of 34 nests to get the same amount of energy.

"Polar bears went through the Eemian 125,000 years ago, when sea level was 4-6 meters higher than it is now and trees lived above the Arctic Circle. They've been through warming before," says Rockwell. "I just read a piece in Natural History with a quote from Ilkoo Angutikjuak that sums this up: 'If the changes continuethe animals will adapt. I've heard that because they depend on sea ice, polar bears will go extinct, but I don't believe itPolar bears might get skinnier and some might die, but I don't think they will go extinct.'"


'/>"/>

Contact: Kristin Elise Phillips
kphillips@amnh.org
212-496-3419
American Museum of Natural History
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Drug commonly used to treat bipolar disorder dramatically increases lifespan in worms
2. Half time in the International Polar Year 2007-2008
3. Arctic climate models playing key role in polar bear decision
4. NASA expert to address Earths vanishing polar ice, April 10, at UD
5. Vanishing polar ice talk to be Webcast live, April 10
6. Federal polar bear research critically flawed, says study in INFORMS journal
7. Rare Antarctic fossils reveal extinction of tundra before full polar climate arrived
8. Dartmouth awarded NSF grant for new polar sciences, engineering grad program
9. Largest study of its kind implicates gene abnormalities in bipolar disorder
10. RV Polarstern on its way to East Siberian Sea
11. Experts meet on need for new rules to govern worlds fragile polar regions
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Goose eggs may help polar bears weather climate change
(Date:9/29/2014)... at home should use ventilation when cooking with a ... after a new study showed an association between gas ... bronchitis. , "In homes where a gas stove was ... is higher than in homes where a gas stove ... professor in the College of Public Health and Human ...
(Date:9/29/2014)... Scientists at Washington State University have concluded that ... apples may help prevent disorders associated with ... to assess these compounds in apple cultivars grown ... edition of the journal Food Chemistry ., ... good source of these nondigestible compounds but there ...
(Date:9/29/2014)... in Behavioral Brain Research provides novel insight ... result of chronic alcohol exposure that can lead to ... and research indicate that individuals with alcohol use disorders ... when people are actively drinking, when they are going ... "Sleep-wake disturbances can last for months, or even years, ...
Breaking Biology News(10 mins):Childhood asthma linked to lack of ventilation for gas stoves, OSU study shows 2Childhood asthma linked to lack of ventilation for gas stoves, OSU study shows 3An apple a day could keep obesity away 2
... Using a systems biological analysis of genome-scale data ... of researchers identified that the master gene controlling ... The study will appear in the latest issue ... Sciences. This hypothesis derived from multi-network analysis of ...
... led by Mark Hoddle , a biological control ... glassy-winged sharpshooter , a major agricultural pest, from the ... in the South Pacific Ocean. To achieve total pest ... that provides permanent control and can be applied to ...
... MANHATTAN, KAN. -- To understand how nitrogen accumulates in large ... Dodds looked at small streams flowing closer to home. ... have to look any farther than his own campus for ... nine small waterways in the Manhattan area that Dodds used ...
Cached Biology News:Systems biology approach identifies nutrient regulation of biological clock in plants 2UCR-led research team uses tiny wasp to wipe out major agricultural pest in Tahiti 2UCR-led research team uses tiny wasp to wipe out major agricultural pest in Tahiti 3UCR-led research team uses tiny wasp to wipe out major agricultural pest in Tahiti 4Research team finds that microorganisms filter nitrogen from small streams 2
(Date:9/30/2014)... Windsor, CT (PRWEB) September 30, 2014 ... distributor of scientific research products, recently opened an ... its comprehensive cell culture product lines developed and ... through its online store include Biological Industries’ Nutristem® ... (hMSC) and human embryonic stem cell (hESC) culture. ...
(Date:9/30/2014)... 30, 2014 UFP Technologies, a ... packaging has recently introduced a custom insulated shipping ... . The new insulated shipper solves the issue ... process. UFP Technologies’ BioShell is a universal storage ... storage, handling and shipping. The insulated shipper keeps ...
(Date:9/30/2014)... (PRWEB) September 30, 2014 Back in the ... 500 square feet. per employee, which included space for circulation ... then.” says Jeff Howell, partner at Nidea Corporate Real ... in Toronto. “By the year 2000, however, 250 square ... seeing that number come down to 175 to 225 square ...
(Date:9/29/2014)... (PRWEB) September 30, 2014 Each ... burn injuries require medical attention. In the military, ... serious complications to battlefield medical care. More than ... and Afghanistan. Burn wounds heal slowly, remain inflamed ... be excessive, physically debilitating and functionally damaging. While ...
Breaking Biology Technology:Rainbow Scientific, Inc. opens online store for state-of-the-art stem cell culture and cytogenetic reagents 2UFP Technologies Introduces Insulated Shipping Container For Bulk Drug Transportation 2UFP Technologies Introduces Insulated Shipping Container For Bulk Drug Transportation 3ITRA Global Reports on How Companies Are Squeezing More Employees into Less Office Space 2ITRA Global Reports on How Companies Are Squeezing More Employees into Less Office Space 3Faster Healing with Fewer Scars 2
... up by 48% at EUR958 Million - EBITDA Margin ... the Target Segment of Pharmaceutical Plastics,in South America: Brazilian ... to provisional figures, Gerresheimer AG has just completed,another record ... up by,48.1%; the adjusted Group EBITDA margin reached 19%. ...
... think a lot about "Homeland Security," but one Montana ... home gardeners also serves to keep us safe from ... the Bozeman campus recently received a five-year grant for ... the lab provides an early warning system of biological ...
... manufactured product our clothes, money, appliances, the paint ... cars will be embedded with intelligence, networks of ... dust or an Internet of Things. The world of ... have surveillance systems, biometrics, personal communicators, machine learning and ...
Cached Biology Technology:2007 Another Record Year in Terms of Sales and Earnings for Gerresheimer 22007 Another Record Year in Terms of Sales and Earnings for Gerresheimer 3Montana State University lab gives early warnings about biological invaders 2Montana State University lab gives early warnings about biological invaders 3Supportive devices or unnecessary surveillance? 2
... Peptide Antigen Design , Customer Peptide Synthesis , ... purity above 90%, 20 mg will be returned to customer conjugation ... 2, , Maintenance 102 days/each ... injections x5 /each , Test bleed (app. ...
...
GeneRacer is an advanced RACE (rapid amplification of cDNA ends) technique that improves the efficiency of amplifying full-length 5' and 3' cDNA ends. With the GeneRacer Kit you can:...
One-step, microplate or cuvet, colorimetric, linear detection range 0.6 mM to 100 mM. Procedure: 2 min....
Biology Products: