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All Images

Discovery
Ghosts of Forests Past: Bark Beetles Kill Lodgepole Pines, Affecting Entire Watersheds

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Mountain with dried trees in a forest overlooking Grand Lake, Colorado

Ghosts of a forest past: Bark beetle-killed trees overlook Grand Lake, Colo.

Credit: Lindsay Bearup


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A stream going through bark beetle-felled trees

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 with soil and microbial samples beneath a beetle-killed tree.

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

Beetle-killed trees line a river; researchers have found water quality changes.

Credit: Lindsay Bearup


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Close-up of a pine with open areas in the bark created by beetle burrowing

Beetles burrowing into pines create open areas in the trees' bark.

Credit: Lindsay Bearup


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Researcher conducting experiments in a lab.

Researchers conduct experiments on how chemicals in pine needles influence the soil.

Credit: Thomas Cooper, Lightbox Images


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