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Department of Forestry and Wildland Resources (Humboldt State University)

A researcher assesses the health of giant sequoias planted more than 30 years ago in an area hotter and drier than their original homes. Photo by John-Pascal Berrill

Small Giant Sequoia Groves May Not Endure

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More than 30 years ago, giant sequoia seeds were collected in 23 groves representing the species’ range from north to south in the Sierra Nevada. They were propagated and planted on US Forest Service land 20 miles east of Auburn, California, that was hotter, drier, lower in elevation and farther north than any of their original homes. This experiment, the legacy of William J. Libby, UC Berkeley emeritus professor and Save the Redwoods League board member, has been studied and carefully maintained ever since. Learn more about this research.

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In this logged forest, alders compete for dominance with Douglas-fir and redwoods. Redwoods here were stunted compared with their relatives in a untouched "old-growth" forest. Photo by Emily King Teraoka

Thinning Would Spur Old-Growth Qualities

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Upland forests in Redwood National Park have been studied extensively. But until a few years ago, less was known about streamside, or “riparian,” forests, which benefit the park’s salmon habitat by providing shade, erosion control and woody debris in the streams. So Humboldt State University graduate student Emily King Teraoka decided to compare two of the park’s riparian forests: one along Lost Man Creek, which had been clearcut between 1954 and 1962; and one along Little Lost Man Creek, which was mostly untouched. Learn more about this research.

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