"Regime shifts" are infrequent, large changes in oceanic conditions that spread through the food web. Depending on dynamics of the ecosystem, the response of a biological organism to some external forcing can be smooth, abrupt, or discontinuous.
In a paper published in the current issue of Progress in Oceanography, Dr. Jeremy Collie, University of Rhode Island Graduate School of Oceanography, Dr. Katherine Richardson, University of Arhus, Denmark, and Dr. John Steele, Woods Hole Oceanographic Institution, examine the mechanisms that can cause regime shifts in ecosystems and use oceanographic and ecological theory to shed light on the relationships between forcing and response variables.
The focus of the paper is to establish a theoretical basis for the occurrence of regime shifts in the ocean. Our understanding of regime shifts relies on observations of organisms and their marine environment taken on times scales of years and decades. Given the size, scope and interrelatedness of marine ecosystems, experimental manipulation is infeasible. Ecological theory and mathematical models are therefore essential tools for developing this understanding.
Lisa Cugini | EurekAlert!
UCI and NASA document accelerated glacier melting in West Antarctica
26.10.2016 | University of California - Irvine
Ice shelf vibrations cause unusual waves in Antarctic atmosphere
25.10.2016 | American Geophysical Union
Ultrafast lasers have introduced new possibilities in engraving ultrafine structures, and scientists are now also investigating how to use them to etch microstructures into thin glass. There are possible applications in analytics (lab on a chip) and especially in electronics and the consumer sector, where great interest has been shown.
This new method was born of a surprising phenomenon: irradiating glass in a particular way with an ultrafast laser has the effect of making the glass up to a...
Terahertz excitation of selected crystal vibrations leads to an effective magnetic field that drives coherent spin motion
Controlling functional properties by light is one of the grand goals in modern condensed matter physics and materials science. A new study now demonstrates how...
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
14.10.2016 | Event News
14.10.2016 | Event News
12.10.2016 | Event News
26.10.2016 | Physics and Astronomy
26.10.2016 | Earth Sciences
25.10.2016 | Earth Sciences