The following questions have been submitted by Steve Brink in response to the
Owl IT meeting on 8/23/2012:
Q1: Looking again at the Lambda graph, it’s interesting that the downward slope
of the line is nearly constant. I should have thought about the 2001 Star Fire
when Pat Ferrell, Eldorado NF Contracting Officer, asked a question about it.
The Star Fire burned 16,900 acres in Aug-Sept. 2001, about 2,400 acres of which
were on the Georgetown Ranger District. Following the fire, the USFS concluded
that the two HRCAS, in which PAC055 and PAC075 were located, were essentially
destroyed and recommended deleting both PACs from the Forest plan. Further,
about 70% of the total acres burned in the Fire were of high severity. So, how
is it that the Star Fire had absolutely no affect on the owls ?
Q2: Because soil site classification could be used as a surrogate for the
overall “primary productivity” of a forest, will the samples for the control and
“treatment” areas be stratified? The premise being that owls in highly
productive forests will perform better under both the control and “treatment”
conditions, and likewise owls on less productive forests will underperform under
control or treatment scenarios.
Q3: It’s still unclear to me why the Team is not opportunistic and looking to
tease out why Owls had very high reproductive success in 1992. Using the 1993
data, and not using 1992, doesn’t seem intuitive given Rocky’s premise that
CSO’s live a long time and have an evolutionary strategy that is opportunistic
for reproduction. How can that be justified?
Q4: Given how robust the IPM is, why wouldn’t Doug include ALL of the owl data
that the Team has including:
1) The discrepancies related to the 8 birds that were counted in the occupancy
but not as part of the population and likewise the other 4 birds that resisted
2) The 1992 reproduction data since it is congruent with Rocky’s premise that
the evolutionary strategy of the owl is to be long lived and be opportunistic
3) Running a comparison with and without the 1992 data?
California Forestry Association
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