David Wallin

TO EMPATHIZE with the mountain goats of the Cascade Range, imagine the apocalypse has come and your extended family members are the only survivors on besieged Capitol Hill. Now it’s time to have children.

Unless you want to marry a cousin, you must reach another…

David Wallin, a professor of environmental sciences at Western Washington University, is testing the use of unmanned aerial vehicles to track the movements of elk herds in the Skagit Valley.

Looking out over the town of Hamilton in the upper Skagit River valley from a hillside on state Department of Natural Resources land, a team of federal unmanned aircraft operators and local researchers scouted for elk.

They couldn’t see elk themselves from that high up, but they knew they…

Looking out over the town of Hamilton in the upper Skagit River valley from a hillside on state Department of Natural Resources land, a team of federal unmanned aircraft operators and local researchers scouted for elk.
They couldn’t see elk themselves from that high up, but they knew they…

Unmanned aircraft will scout a section of state-managed forest land north of Hamilton next week on the lookout for elk — a known hell-raiser in eastern Skagit Valley.
For several years, a growing herd has caused trouble for farmers, landowners and drivers along Highway 20 and the upper…

When David Wallin was asked by the Sauk-Suiattle Tribe eight years ago to help figure out why the number of mountain goats in the Washington's Cascades was so low, he was puzzled.
"How could mountain goat populations possibly be in trouble?" wondered Wallin, an environmental…

Whither the mountain goat?

A variety of reasons -- from past hunting pressure to impacts on winter habitat -- exist to explain why mountain goat populations in Washington state's Cascade Mountains have declined for most of the 20th Century. After hunting pressure was reduced in the…

David Wallin, a professor of environmental science in Huxley College of the Environment at Western Washington University, gave a talk at the US Chapter of the International Association of Landscape Ecologists' 26th Annual Landscape Ecology Symposium in Portland, Ore., in April: "…

The ribbons of highway that crisscross Washington help move freight, commuters and vacationers. They also put humans and wild animals on a collision course.

Each year, 10,000 deer are hit on state highways, according to rough estimates by the Washington State…

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