For the first time ever, a University of Alberta researcher has discovered that an animal species has changed its genetic make-up to cope with global warming. In the past, organisms have shown the flexibility--or plasticity--to adapt to their surroundings, but this is the first time it has been proven a species has responded genetically to cope with environmental forces.
Dr. Stan Boutin, from the Department of Biological Sciences at the University of Alberta in Edmonton, has been studying a North American red squirrel population in Canadas southwest Yukon for almost 15 years. The squirrels, faced with increasing spring temperatures and food supply, have advanced the timing of breeding by 18 days over the last 10 years—six days for each generation. His findings appear on First Cite and will appear in the journal Proceedings of the Royal Society London B next month.
Boutin and his colleagues used an approach called quantitative genetics, long used in agriculture but never before applied to a wild species. Through analytical modelling, the team of researchers was able to sort out how much of the squirrels’ adaptation is due to a plastic, individual response and how much is due to genetics. “This has never been done before,” said Boutin. “Other researchers have stopped at plasticity.”
Phoebe Dey | EurekAlert!
Despite government claims, orangutan populations have not increased. Call for better monitoring
06.11.2018 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig
Increasing frequency of ocean storms could alter kelp forest ecosystems
30.10.2018 | University of Virginia
Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.
Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can...
Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.
Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...
Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.
In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...
On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.
When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure
Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...
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16.11.2018 | Health and Medicine
16.11.2018 | Life Sciences
16.11.2018 | Life Sciences