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Why some pockets of conifer survive repeated forest fires


Will Downing/OSU
“Fire refugia” are areas that burn less frequently and/or less severely than the landscape around them.
The most fire-resistant parts of vulnerable forests are crucial for supporting post-blaze ecosystem recovery.
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Oregon State University researchers say “topographic templates” can help forest conservation managers develop strategies for protecting and restoring the most fire-resistant parts of vulnerable forests across a range of ecosystems.
That’s important because changing wildfire regimes are affecting forests around the globe, the scientists note, and areas that burn over and over in relatively quick succession may not be able to recover between fires. ....

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Researchers demonstrate new method to track genetic diversity of salmon, trout


Scientists at Oregon State University and the U.S. Forest Service have demonstrated that DNA extracted from water samples from rivers across Oregon and Northern California can be used to estimate genetic diversity of Pacific salmon and trout.
The findings, just published in the journal Molecular Ecology, have important implications for conservation and management of these species, which are threatened by human activities, including those exacerbating climate change.
“There has been a dearth of this kind of data across the Northwest,” said Kevin Weitemier, a postdoctoral fellow at Oregon State and lead author of the paper. “This allows us to get a quick snapshot of multiple populations and species all at once.” ....

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