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Ghosts of Forests Past: Bark Beetles Kill Lodgepole Pines, Affecting Entire Watersheds
Ghosts of a forest past: Bark beetle-killed trees overlook Grand Lake, Colo.
Credit: Lindsay Bearup
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Bark beetle-felled trees fall, landing on a river and likely affecting the health of its waters.
Credit: Lindsay Bearup
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Scientists take soil and microbial samples beneath a beetle-killed tree.
Credit: Thomas Cooper, Lightbox Images
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Beetle-killed trees line a river; researchers have found water quality changes.
Credit: Lindsay Bearup
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Beetles burrowing into pines create open areas in the trees' bark.
Credit: Lindsay Bearup
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Researchers conduct experiments on how chemicals in pine needles influence the soil.
Credit: Thomas Cooper, Lightbox Images
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