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Biodiversity
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Author
Christy, John A.
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Hak, Jon
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Koloszar, Theresa
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McArthur, Fern
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Oregon Natural Heritage Information Center
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Scheuering, Eric
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Subject
Endangered species -- Classification
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1. [Article] Rare, Threatened and Endangered Species of Oregon
Extinction is a natural process. Today, however, plant and animal species are disappearing world-wide at an accelerated pace. Based on current trends, half of the species on earth will be extinct within ...Citation