Snow quality may affect the Canadian lynx’s ability to kill its prey, according to new research suggesting climate may be impacting one of the most fascinating ecological systems to intrigue biologists for decades. The University of Alberta’s Dr. Stan Boutin is part of a research team to study the relationship between the lynx and the snowshoe hare—an interaction that has grave implications on the dynamics of the whole boreal forest.
Boutin teamed up with other researchers from Canada, the United States and Norway—including evolutionary ecologist Nils Stenseth—to study the lynx-hare cycle, and how it related to the overall boreal forest community. Stenseth has previously argued that the 10-year cycle, which means a rise and fall of the hare population followed by a similar pattern of the lynx, differed according to regions of the country and those differences were tied to large-scale climatic patterns.
“The genetics of the lynx are quite different among these Canadian regions and we questioned whether there was some sort of barrier that might stop gene flow,” said Boutin, a biologist with the Faculty of Science. “We knew there was nothing physical between eastern and central regions, so we started to speculate that there may be something climate-related that would influence the lynx’s ability to prey on snow hares and their propensity to move between regions.”
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19.02.2018 | Universität Basel
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08.02.2018 | International Institute for Applied Systems Analysis (IIASA)
A newly developed laser technology has enabled physicists in the Laboratory for Attosecond Physics (jointly run by LMU Munich and the Max Planck Institute of Quantum Optics) to generate attosecond bursts of high-energy photons of unprecedented intensity. This has made it possible to observe the interaction of multiple photons in a single such pulse with electrons in the inner orbital shell of an atom.
In order to observe the ultrafast electron motion in the inner shells of atoms with short light pulses, the pulses must not only be ultrashort, but very...
A group of researchers led by Andrea Cavalleri at the Max Planck Institute for Structure and Dynamics of Matter (MPSD) in Hamburg has demonstrated a new method enabling precise measurements of the interatomic forces that hold crystalline solids together. The paper Probing the Interatomic Potential of Solids by Strong-Field Nonlinear Phononics, published online in Nature, explains how a terahertz-frequency laser pulse can drive very large deformations of the crystal.
By measuring the highly unusual atomic trajectories under extreme electromagnetic transients, the MPSD group could reconstruct how rigid the atomic bonds are...
Quantum computers may one day solve algorithmic problems which even the biggest supercomputers today can’t manage. But how do you test a quantum computer to...
For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.
In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...
Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale
Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...
15.02.2018 | Event News
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12.02.2018 | Event News
23.02.2018 | Physics and Astronomy
23.02.2018 | Health and Medicine
23.02.2018 | Physics and Astronomy