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Originally published May 23, 2014 at 8:08 PM | Page modified May 23, 2014 at 9:42 PM

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JBLM area among few habitats for Taylor’s checkerspot butterflies

Joint Base Lewis-McChord is one of the last habitats for the endangered Taylor’s checkerspot butterfly, and the Army is working to boost its numbers.


The Associated Press

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JOINT BASE LEWIS-MCCHORD — An undeveloped stretch of native prairie in south Puget Sound offers one of the few habitats in the world where a 2-inch colorful checkered butterfly thrives. It also happens to be the main artillery-impact range for Joint Base Lewis-McChord.

The Army’s Stryker combat brigade and other troops regularly practice military maneuvers and live-fire training on acres of scenic, open grassland where a small population of Taylor’s checkerspot butterfly feed on nectar of native blooms, mate and lay eggs.

The butterfly’s listing as a federal endangered species last fall “has the potential to cause major restrictions on training,” said Jeffrey Foster, an ecologist at the base.

That has the Army working to boost the numbers of butterflies, once found at more than 70 sites in Puget Sound, Oregon and British Columbia but now reduced to 14 sites.

From Maryland to Louisiana to Colorado, the Army has been conserving buffer areas around bases to limit urban development, while also preserving and restoring habitat for rare species such as the red-cockaded woodpecker and the golden-cheeked warbler.

So far, the program has preserved over 200,000 acres of land.

At JBLM, the program is helping not only the Taylor’s checkerspot butterfly but also the streaked horned lark and Mazama pocket gopher.

Last October, the U.S. Fish & Wildlife Service concluded the Taylor’s checkerspot was in danger of extinction and designated nearly 2,000 acres in Clallam County, Puget Sound and Oregon’s Willamette Valley as critical habitat for the creature.

The agency said it considered “military training under present conditions a threat to the short-term and long-term conservation of the Taylor’s checkerspot.” The eight-wheeled Stryker vehicle and soldier foot traffic can crush larvae and damage plants the butterflies rely on.

The Army has been working with the state, the Center for Natural Lands Management and others to preserve and restore habitat, both on and off the military installation, so the butterflies could be reintroduced.

The military and its partners have committed about $35 million and protected several thousand acres of land in and around JBLM for multiple species. It will likely take years to increase the butterfly’s numbers, there’s been some success already.

Taylor’s checkerspot butterflies are establishing at two of three sites at JBLM and on two other sites near Olympia where they have been reintroduced.

“We’re in a much better position now than we were five years ago,” said Mary Linders, a conservation biologist with state Fish and Wildlife.

The Army is working with the Center for Natural Lands Management (CNLM), a nonprofit group that manages lands that are purchased, works with partners who raise the butterflies in captivity, propagates native prairie plants and prepares sites where the checkerspots can be reintroduced.

Hannah Anderson, rare-species program manager at CNLM, said the military’s program helped “protect lands off the base, restore them to high quality and bring the animals there so we could protect these animals but also the military’s ability to train.”

On a recent day, Linders and others walked a section of prairie at the artillery-impact area to count adult butterflies and monitor the timing of the flight season.

It’s prime season for the butterflies to mate, and their orange and white checkered wings flutter as they move from plant to plant. They fly in groups and dip into the center of Puget balsamroot, bright sunflower-like plants that are in full bloom.

Nearby, pockmarked bunkers bear evidence of artillery fire. White stakes mark areas where vehicles must stay on the road and where soldiers and others are prohibited from digging or camping. Linders points out a cluster of eggs at the base of a red harsh paintbrush.

“You can see lots and lots of them as we’re walking through here,” she said. “It’s the largest population left in the checkerspot’s range.”



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