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News Release 13-101

Whitebark Pine Trees: Is Their Future at Risk?

Widespread tree death from beetle infestations, tree disease outbreaks affecting seed production

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Photo of ecologist Josh Rapp climbing a whitebark pine

Ecologist Josh Rapp climbs a whitebark pine to sample cone-bearing branches.

Credit: Dash Donnelly


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Photo of dead whitebark pine trees in a mountenous area

Whitebark pine trees killed by mountain pine beetle (foreground and on mountain).

Credit: Josh Rapp


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Map of US with current range of the whitebark pine tree marked

Current range of the whitebark pine tree: Will it soon be much smaller?

Credit: Wikimedia Commons


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Close-up photo of a clark's nutcracker bird

Clark's Nutcrackers are the main carriers of whitebark pine seeds to new areas.

Credit: Clarisse Hart


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Close-up photo of a cluster of whitebark pine seed cones

Whitebark pine seed cones are found in clusters of two-to-four cones at ends of branches.

Credit: Josh Rapp


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Photo of a grizzly bear walking in the forest

Grizzlies: likelier to come into conflict with humans when whitebark pine cone crops fail.

Credit: Josh Rapp


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