It’s previously been accompanied by Scutellinia cups, but these seem to be absent this year. The log is now exposed to direct sunlight in the afternoons, because it’s just to the east of the edge of the destroyed region. Could that be making a difference (even on the parts of the log that remain in permanent shade)? If the log is simply warmer on average I’d expect these LBMs to be delayed to later in the fall along with Scutellinia. I’d also expect UV not to penetrate deep into wood; nobody gets UV-caused primary cancers anywhere but their skin, so a few millimeters thickness of tan-to-brown matter is apparently enough to block that type of radiation.
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Created: 2010-09-22 18:14:05 PDT (-0700)
Last modified: 2012-09-06 00:18:20 PDT (-0700)
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