The high heat that accompanied the recent drought was the underlying cause of death for millions of pinyon pines throughout the Southwest, according to new research.
These photos show the massive die-off of pinyon pines that occurred during the recent drought. By October 2002, pinyons, normally evergreen, had reddish-brown foliage (left). By May 2004, the dead pinyons had lost all their needles, exposing their gray trunks. The photos were taken from the same vantage point in the Jemez Mountains near Los Alamos, N.M. Photo credit: Craig D. Allen, U.S. Geological Survey.
The resulting landscape change will affect the ecosystem for decades. Hotter temperatures coupled with drought are the type of event predicted by global climate change models. The new finding suggests big, fast changes in ecosystems may result from global climate change.
"We documented a massive forest die-off – and its a concern because its the type of thing we can expect more of with global warming," said research team leader David D. Breshears, a professor of natural resources in The University of Arizonas School of Natural Resources in Tucson and a member of UAs Institute for the Study of Planet Earth.
Mari N. Jensen | EurekAlert!
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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.
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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...
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