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Studies
of Wildlife
Public concern over the potential effects of timber harvesting
and intensive forest management on wildlife has focused primarily
on the decline or loss of large, charismatic species such
as the spotted owl, grizzly bear, and timber wolf. Because
of the relatively small size of the harvest units used in
this experiment, it is not possible to evaluate responses
to level or pattern of retention by these and other wildlife
species with large spatial requirements. However, there are
a broad array of other taxa (i.e., songbirds, small mammals,
and amphibians) that represent major components of the native
biodiversity in forested ecosystems, and some of these species
may also be at risk. Because of their social, political,
and biological significance, studies of wildlife are a central
element of our research. Wildlife studies are designed to
evaluate responses of diurnal forest birds, arboreal rodents,
bats, forest-floor small mammals, and amphibians to different
levels and patterns of green-tree retention.
An
overview of the sampling strategies and predicted responses
of selected wildlife species to the DEMO harvest treatments
can be found in: Lehmkuhl,
J. F., S. D. West, C. L. Chambers, W. C. McComb, D. A.
Manuwal, K. B. Aubry, J. L. Erickson, R. A. Gitzen, and
M. Leu. 1999. Assessing wildlife response to varying levels
and patterns of green-tree retention in western Oregon
and Washington. Northwest Science 73 (Special Issue): 45-63.
Other
Publications
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