HOME >> BIOLOGY >> NEWS
Warming temperatures put tufted puffin at risk

Warmer ocean temperatures may be harming reproduction of the tufted puffin in western Canada and if global temperatures continue to increase, the species could be at risk, says a new study co-authored by a University of Alberta researcher.

Throughout the last two decades, uncharacteristically warm sea-surfaces have persisted near Triangle Island--off the coast of British Columbia--a haven for these birds. Researchers have been studying the reproductive performance of tufted puffins there since 1975. For years this seabird, but not others, had frequent reproductive failures--seasons when no chicks were reared and researchers did not know why.

The study, published in the current edition of Proceedings of the National Academy of Sciences (PNAS) journal, found that there is a direct relationship between the puffins' breeding success and temperature.

"They raise few chicks when sea surface temperatures are either unusually cold, as they were in the 70s, or especially when they are unusually warm, as they were through most of the 1990s," said author Colleen Cassady St. Clair, a behavioural ecologist from the Faculty of Science. She shared research duties with Carina Gjerdrum--a master's-level graduate from Simon Fraser University and the lead author on the paper--Douglas Bertram, now with Environment Canada and John Ryder and Gwylim Blackburn from Simon Fraser University. Another author Anne Valle, died 21 years ago after a fall she endured while studying the puffins.

The researchers speculate that the biggest reason for these reproductive changes are due to the puffins' prey, which are small fish and mainly a small anchovy-like species called sand lance. "It appears that these fish leave areas with warm water," said St. Clair. "When this warm water surrounds the breeding colonies, the puffins can't catch fish. The adults then appear to abandon their chicks under these conditions, perhaps so that they can forage farther offshore and th
'"/>

Contact: Phoebe Dey
phoebe.dey@ualberta.ca
780-492-0437
University of Alberta
14-Jul-2003


Page: 1 2

Related biology news :

1. Warming study indicates water problems in the West
2. Warming temperatures may freeze North American timber industry
3. Warming trend seen in late freeze, early thaw of northern waterways, say Science researchers
4. A Bacterium Can Help Slow Global Warming
5. Bones of Crocodile-like Beasts Tell Tale of Global Warming
6. Duke Studies Show U.S. Central Plains Vulnerable To Global Warming
7. Georgia Scientists Study Salt Marsh To Understand Global Warming
8. Scientists Find Further Global Warming Evidence In Temperature Reconstruction Study
9. Global Warming Would Foster Spread Of Dengue Fever Into Some Temperate Regions
10. Prairies Will Be Hit Hard By Global Warming
11. Population Growth Costs Include Global Warming Impact

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Warming temperatures put tufted puffin risk

(Date:4/16/2014)... memories improves during childhood, associated with structural changes ... and parietal cortices. New research from UC Davis ... this crucial time. Eventually, that could give insights ... into and during adolescence and affect memory, such ... the middle of the brain, the hippocampus plays ...
(Date:4/16/2014)... composed of Dr. Martin Prechtl, Leo Heim and their ... has discovered a new method of generating hydrogen using ... is of particular interest when it comes to fuel ... and mild hydrogen production using water and formaldehyde", have ... . , Among other applications, the new approach can ...
(Date:4/15/2014)... away in Hartford, Connecticut, a Puerto Rican community is ... that is so authentic it has caught the attention ... Gregory J. Anderson (University of Connecticut) took a close ... markets of Hartford and uncovered evidence that gives new ... using for years: home is in the kitchen. , ...
Breaking Biology News(10 mins):How kids' brain structures grow as memory develops 2The human food connection: A new study reveals more about our relationship to food 2The human food connection: A new study reveals more about our relationship to food 3
(Date:1/15/2014)... device," Nobel laureate Herbert Kroemer famously observed, ... found at the junctures where layers of ... of nanotechnology, the interfaces between layers of ... applications in such high-tech favorites as spintronics, ... vast potential of these metal oxide interfaces, ...
(Date:1/15/2014)... Jan. 15, 2014   Niagara Thermal Products ... been selected by Buffalo BioBlower Technologies LLC ("B3") ... of its SBIR Phase 2 award from the ... only comprehensive air purification system that kills all ... pollutants, allergens and organic particulates.  In independent testing ...
(Date:1/15/2014)... SAN JOSE, California , January 15, 2014 ... company developing antibody-drug conjugates for cancer, today announced the ... Board of Directors. Dr Reynolds has over 20 years, ... as Chief Medical Officer at Seattle Genetics. ... time for Oxford BioTherapeutics, as the company completes its ...
(Date:1/15/2014)... -- A study has been launched to ... Formula 1 track could help to tackle the problem ... Technologies (MAT), Stowhealth (a GP surgery based in Stowmarket) ... by healthcare provider Simplyhealth. Telemetry technology, which ... the on-track performance of Vodafone McLaren Mercedes Formula 1 ...
Breaking Biology Technology:A deeper look at interfaces 2Niagara Thermal Products LLC Selected as Critical Supplier for Buffalo BioBlower Air Purification Systems 2Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 2Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 2Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 4
Cached News: