Post-thinning natural regeneration in the Pacific Northwest of USA was evaluated 13 years after thinning
50-year-old Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco var. menziesii) stands on a drier, interior
Coast Range site (McDonald) and 10 years after thinning 50- to 55-year-old Douglas-fir/western hemlock
(Tsuga heterophylla [Raf.] Sarg.) stands on a moister,...
It really doesn’t matter, because you can learn and have fun with the
4-H Poultry Project studying either the chicken or the egg. You don’t
even have to own a flock!
• Learn how to brood, feed, and care for chickens, turkeys, ducks,
geese, guinea fowl, pheasants, or other wild...
Published March 2004. Reviewed July 2014. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Regression models of height growth and survival were fitted to aggregate data for trees, protected and not protected from animal damage, that had been surveyed on Douglas-fir and ponderosa pine plantations in Oregon and Washington. Animal damage significantly affected both height and survival. Dynamic programming analysis-using both soil expectation (Se)...
Stakeholders in the southern Blue Mountains have reported a need for a scientific review of the northern goshawk (Accipiter gentilis atricapillus; hereafter, goshawk) in relation to dry forest restoration and management activities. Here, we provide a compilation of relevant synthesis papers, existing peer-reviewed research, and goshawk monitoring efforts in the...
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Table 2: Legal and Management Status of A.g. atricapillus in the Inland PNW ... 21
Management
Knowledge about the relationship between habitat structure and abundance of a target species
facilitates biodiversity conservation in managed forests. However, modeling the relationship
for infrequent small mammal species in silvicultural experiments introduces the challenge of
excessive zero counts and complex hierarchical sampling. A common solution has been to
ignore infrequent...
We analyzed 45 years of data collected from three ponderosa pine (Pinus ponderosa Douglas ex P. Lawson & C. Lawson) levels-of-growing-stock installations in Oregon (OR) and northern California (CA), USA, to determine the effect of stand density regimes on stand productivity and mortality. We found that periodic annual increment (PAI)...
Production and marketing are two important activities of the
U.S. beef industry. Spatial differences in these activities result
due to the existing cost differences in production and marketing of
beef. The overall objective of this study is to determine simultaneously
interregional and interseasonal equilibrium, with respect
to beef production and...