DNR weekend reading: Magnetic fields guide salmon home

State trust land
Fog and below-freezing temperatures combine to give the illusion of recent snowfall on a tract of DNR-managed state trust land in Pend Oreille County. Photo: James Hartley/DNR.

Here are links to articles about recent research, discoveries and other news about forests, climate, energy and other science topics gathered by DNR for your weekend reading:

Oregon State UniversityStudy confirms link between salmon migration and magnetic field
The Earth’s magnetic field may explain how fish can navigate across thousands of miles of water to find their river of origin, say scientists following experiments at the Oregon Hatchery Research Center in the Alsea River basin.

Cornell UniversityDeer proliferation disrupts a forest’s natural growth
Cornell researchers have discovered that a burgeoning deer population forever alters the progression of a forest’s natural future by creating environmental havoc in the soil and disrupting the soil’s natural seed banks.

Science DailyWhat has happened to the tsunami debris from Japan?
The driftage generated by the tragic 2011 tsunami in Japan gave scientists a unique chance to learn more about the effects of the ocean and wind on floating materials as they move across the North Pacific Ocean.

Harvard UniversityInfrared: A new renewable energy source?
Physicists at the Harvard School of Engineering and Applied Sciences envision using current technologies to create a device that would harvest energy from Earth’s infrared emissions into outer space.