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The Value of Willamette Valley Oregon White Oaks for Establishing Climate Growth Interactions
Presented by Dr. Karen ARABAS on 15 May 2013 from 18:00 to 21:00
Type: Poster Presentation
Session: Poster Session + Reception
Board #: 39
Oregon white oak (Quercus garryana) is an integral part of the ecosystem in the Willamette Valley, Oregon. Human activities including fire suppression and land use change have resulted in the dominance of Douglas fir, making native oak habitat in the region rare. Understanding the relative importance of human vs. climate impacts on Quercus garryana growth will inform conservation techniques for land managers. This study is an extension of previous research which suggests that the growth of Quercus garryana at Zena Forest, Willamette Valley can be correlated with the Palmer Drought Severity Index. Although climate signals often appear more clearly in populations at the edges of their range, the Zena Forest population suggests that Quercus garryana in the Willamette Valley may be responding to climatic stresses. Therefore, this Quercus garryana tree ring record may be useful for separating growth trends into climate and other disturbance signals.
Room: Salon E
- Ms. Stevie GILDEHAUS Department of Environmental and Earth Sciences, Willamette University