Most of us dont pay much attention to earthworms but maybe we should. New research suggests that non-native earthworms are radically changing the forest floor in the northern U.S., threatening the goblin fern and other rare plants in the process.
This is "the first research to show that exotic earthworms are harmful to rare native vegetation in northern forests," says Michael Gundale of Michigan Technological University in Houghton, who presents this work in the December issue of Conservation Biology.
About 10,000 years ago, glaciers pushed the range of North American earthworms southward and today the only earthworms found in most of Minnesota are non-native species introduced from Europe. Some of these earthworms eat the top part of the soil (a layer of decomposing litter called the forest floor) and this could endanger the goblin fern, a rare species that grows mostly underground.
Found only in the upper Great Lakes region, goblin ferns live between the forest floor and the underlying mineral soil. Because these tiny ferns only send up leaves briefly during the summer (and often dont emerge at all), they are thought to get some of their energy from fungi in the forest floor instead of by photosynthesizing.
Invasive Insects Cost the World Billions Per Year
04.10.2016 | University of Adelaide
Malaysia's unique freshwater mussels in danger
27.09.2016 | The University of Nottingham Malaysia Campus
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
25.10.2016 | Earth Sciences
25.10.2016 | Power and Electrical Engineering
25.10.2016 | Process Engineering