Navigation Links
Warmer summers could create challenges for nesting Arctic seabirds
Date:3/24/2010

In talking to my Inuit guides, they told me that they had seen this a lot, and thought that the birds flew into each other in low visibility," says Mallory.

Few birds winter in the Arctic because of the harsh climate conditions. But in the spring, there is a veritable explosion as millions of birds return to nest. Seabirds in Mallory's study area tend to spend the winter months floating in the North Atlantic ocean. When they return in the spring, conditions are often still very harsh. Mallory has seen fulmars and thick-billed murres incubate eggs with only their heads visible above the snow.

The preferred nesting sites of many seabirds are cliffs, which often prove to be very dangerous. Falling rocks and chunks of ice, as well as slides kill great numbers of birds. In fact, the authors cite one incident in which over 800 murres and kittiwakes died almost instantly when the ledges on which they were nesting collapsed. Mallory suspects cliffs could become unstable as temperatures rise, with more freeze-thaw action of ice.

And not all cliffs provide a safe haven from predators. Cliff-dwelling birds are, of course, easily accessible by other predatory birds. But Arctic foxes and even polar bears have been observed on cliff sides eating eggs, chicks or adult nesting birds.

"It's always shocking to see a polar bear on a cliff," says Mallory adding, "I saw Arctic foxes down what appeared to be effectively a vertical wall. And the Inuit report seeing more polar bears on cliffs. So these birds think they are safe, but they are not."

The Arctic has been getting warmer and increased temperatures create stronger storm fronts and bring more precipitation to what is essentially a desert region. For birds adapted to a cold, dry climate, these changes could be very challenging.

"Arctic seabirds don't do well in really heavy, wet snowfall. Chicks hatch in early August and they expect it to be dry and cool. They can't handle soa
'/>"/>

Contact: Ruth Klinkhammer
r.klinkhammer@ucalgary.ca
403-220-7294
Arctic Institute of North America
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Arctic could face warmer and ice-free conditions
2. Ethiopias climate 27 million years ago had higher rainfall, warmer soil
3. Warmer environment means shorter lives for cold-blooded animals
4. Warmer climate causing huge increase in tree mortality across the West
5. Purdue study suggests warmer temperatures could lead to a boom in corn pests
6. Getting warmer? Prehistoric climate can help forecast future changes
7. Smithsonian perspective: Biodiversity in a warmer world
8. Antarctic fossils paint a picture of a much warmer continent
9. Warmer springs mean less snow, fewer flowers in the Rockies
10. Pest management specialist Charles Summers wins prestigious Woodworth Award
11. Could smell play a role in the origin of new bird species?
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/30/2014)... , July 30, 2014 ... Global Government Biometric Systems Market 2014-2024   Business ... The Global Biometric Systems Market 2014-2024" offers the ... market over the next ten years, alongside potential ... market size forecasts. To view the ...
(Date:7/30/2014)... an across-the-board increase in Impact Factors for its ... Citation Reports (Thomson Reuters, 2014) show that ... Essays in Biochemistry , Biochemical Society Transactions ... increases in their Impact Factors. The journals are ... Portland Press Limited. , 2014 Impact Factors (2013 ...
(Date:7/30/2014)... massive collection of 20-million-year-old amber found in the Dominican ... is yielding fresh insights into ancient tropical insects and ... fully curated, a task that will take many years, ... in the world, the researchers report. , Perhaps ... a pygmy locust, a tiny grasshopper the size of ...
Breaking Biology News(10 mins):Global Government Biometric Systems Market Size, Share, Trends and Forecasts 2014-2024 Available Online by Researchmoz.us 2Global Government Biometric Systems Market Size, Share, Trends and Forecasts 2014-2024 Available Online by Researchmoz.us 3Global Government Biometric Systems Market Size, Share, Trends and Forecasts 2014-2024 Available Online by Researchmoz.us 4Global Government Biometric Systems Market Size, Share, Trends and Forecasts 2014-2024 Available Online by Researchmoz.us 5Global Government Biometric Systems Market Size, Share, Trends and Forecasts 2014-2024 Available Online by Researchmoz.us 6Global Government Biometric Systems Market Size, Share, Trends and Forecasts 2014-2024 Available Online by Researchmoz.us 7Global Government Biometric Systems Market Size, Share, Trends and Forecasts 2014-2024 Available Online by Researchmoz.us 8Global Government Biometric Systems Market Size, Share, Trends and Forecasts 2014-2024 Available Online by Researchmoz.us 9Global Government Biometric Systems Market Size, Share, Trends and Forecasts 2014-2024 Available Online by Researchmoz.us 10Across-the-board Impact Factor increases for Portland Press Limited 2Decades-old amber collection offers new views of a lost world 2
... On a popular children's game participants stand as close ... coaxing cells to be very, very close without actually ... challenges for cell biologists. , Now MIT researchers led ... computer science at the Harvard-MIT Division of Health Sciences ...
... Researchers at Mount Sinai School of Medicine have just ... of the microdomains of leukocytes or white blood cells. ... cells in which receptors and signaling molecules accumulate during ... to view white blood cell subsets and their forming ...
... sugars, a technique developed by University of Michigan analytical ... diagnosis and treatment options. , A growing body of ... to proteins on cancer cell surfaces as accomplices in ... keen to characterize these glycans, but traditional analytical methods ...
Cached Biology News:MIT device draws cells close -- but not too close -- together 2MIT device draws cells close -- but not too close -- together 3New imaging technique tracks traffic patterns of white blood cells 2A sweet step toward new cancer therapies 2
(Date:7/30/2014)... 2014  AtheroNova Inc. (OTCBB: AHRO), a biotech ... compounds to safely regress atherosclerotic plaque and improve ... partner, CardioNova, has accomplished first dosing of subjects ... lead compound, AHRO-001.  This Phase 1b trial will ... safety trial completed in February 2014, in which ...
(Date:7/30/2014)... 30, 2014 NCERC at Southern ... present his findings on corn stover pretreatment methods ... week in Washington, D.C. , “Arun’s selection ... is a testament to the success of our ... “Thanks to the foresight and vision of SIUE ...
(Date:7/30/2014)... July 30, 2014 Vala Sciences ... U.S. Environmental Protection Agency (EPA). This new contract ... toxicity models, including tests designed to assess the ... the formation of connections between neurons (synapses), which ... and synapse formation by environmental pollutants likely contributes ...
(Date:7/30/2014)... July 30, 2014 Immunology ... leading Immunologists, Principle Investigators, scientists in the field, ... Malemud, Professor at Case Western Reserve University School ... keynote address on “The effects of recombinant ... of matrix metalloproteinase-9”. Arya Biragyn, a Senior investigator ...
Breaking Biology Technology:AtheroNova Announces Milestone with Initiation of Phase 1b Clinical Trial of AHRO-001 2AtheroNova Announces Milestone with Initiation of Phase 1b Clinical Trial of AHRO-001 3AtheroNova Announces Milestone with Initiation of Phase 1b Clinical Trial of AHRO-001 4NCERC at SIUE Researcher Takes Stage at Department of Energy Conference 2NCERC at SIUE Researcher Takes Stage at Department of Energy Conference 3U.S. Environmental Protection Agency (EPA) Awards Vala Sciences a Second ToxCast Contract 2U.S. Environmental Protection Agency (EPA) Awards Vala Sciences a Second ToxCast Contract 3Unveiling Breakthroughs in Clinical & Cellular Immunology 2Unveiling Breakthroughs in Clinical & Cellular Immunology 3
... 1, 2012  Receptos Inc. today announced that the company is ... Health Care Conference at noon EST on Wednesday, March 7, ... Faheem Hasnain, president and chief executive officer, will provide an ... development programs. "This is an exciting time ...
... 2012 Unigene Laboratories, Inc. (OTCBB: UGNE), a leader ... therapeutics announced today that the Company,s senior management team ... on Thursday, March 8, 2012 at 11 a.m. ET ... Interested participants and investors may access ...
... Enox Biopharma, Inc. (VANCOUVER, BC.) CEO, John C. Rewcastle, Ph.D., ... Thursday, March 1 at 10:35 AM EST. The conference is ... The IN360 is the newest iteration of the ... medical device technology forum and networking meeting. The foundation of ...
Cached Biology Technology:Receptos to Present at the Cowen and Company 32nd Annual Health Care Conference 2Unigene to Announce Fourth Quarter and Full-Year 2011 Financial Results on March 8, 2012 2Enox Biopharma, Inc. Will Present at IN360 Investment in Innovation Conference 2
Mouse monoclonal antibody raised against a partial recombinant WDR5. NCBI Entrez Gene ID = WDR5...
... kit is a sample preparation kit for ... removal of detergents, phenolic compounds, salts, and ... dilute samples. The kit procedure involves a ... tissue or cells, plant leaves, E. coli, ...
... is intended for first-time users of the PROTEAN ... includes a protein sample and reagents sufficient to ... 17 cm, ten 11 cm, or sixteen 7 ... precast SDS-PAGE gels and gels stains are not ...
... Immunogen : Fusion protein ... 474-970 of human Mi-2 Formulation: ... NaCl, 0.035% sodium azide, containing ... evaluated by immunoblot on Hela ...
Biology Products: