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Summer 2024

Tim Steury

Spring 2003

Mounting a defense against biological invaders

Whatever its impact on trade, the World Trade Organization has opened the doors to biological invasion, says Dick Mack. A professor of botany at Washington State University, Mack is a leading authority on invasive species and lead author of Predicting Invasions of Nonindigenous Plants and Plant Pests, a report recently published by the National Research Council.

Invasive species are those that are introduced, whether deliberately or not, only to find their new home much too accommodating. Whereas a plant might be an inconspicuous face in its home crowd, it could become the ubiquitous bully in a new ecological crowd with no defense against its aggressiveness. … » More …

Spring 2003

How do we perceive sound?

Christine Portfors, a neurologist, tends a lair of 23 tropical moustache bats at WSU Vancouver in order to tease apart the question of how they distinguish between sounds-for example, between those they use for echolocation and those they use to communicate.

Bat communication sounds, like speech sounds, are very complex in terms of frequency and timing, says Portfors. Beyond that, “We don’t know anything about how the brain actually processes those types of sounds.”

Earlier work by Portfors revealed that bats have neurons that are very sensitive to the timing of the echolocation sound, between when they emit it and when the echo comes back. … » More …

Winter 2001

Washington apples—best of the best

ALTHOUGH DEBATE will continue over the benefits of organic versus conventional farming, Washington State University scientists have established that organic production of apples is more sustainable than conventional apple production. Soil scientist John Reganold, soils graduate student Jerry Glover, horticulturist Preston Andrews, and agricultural economist Herbert Hinman reported the results of a six-year study comparing organic, integrated, and conventional apple production in the cover article of the April 19, 2001 Nature.

In 1994 the researchers planted four acres of Golden Delicious apples within a Yakima Valley commercial orchard. Plots of equal size were managed according to organic, conventional, and integrated farming practices. Integrated farming … » More …

Winter 2004

The Cougars take Seattle

It’s one of those quintessential late-summer days in Seattle. Clear in the morning, warm, gathering clouds by late afternoon, the air heavy and muggy. The tourists are tired, making their way back to the hotel for an early dinner. It is Friday, rush hour, and the Cougar Marching Band, full 250 strong, is playing the fight song on the terrace in front of Westlake Center.

Who knows how many of the hundreds of people gathered for this late-afternoon pep rally are alums. But everyone’s a Cougar for now. Everyone’s smiling. The band is giving it everything, the cheerleaders are pumping the crowd and defying gravity, … » More …