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Western Journal of Applied Forestry Online Quiz
Derived from the 2012 July Western Journal of Applied Forestry
Cost: $25 members      $35 nonmembers
Each time the quiz is taken, a fee will be required.

The Western Journal of Applied Forestry Quiz is approved for 4.0 continuing forestry education (CFE) credit hours in Category 1-CF by the Society of American Foresters. Successful completion of the self-assessment, defined as a cumulative score of at least 70%, is required to earn CFE credit. CFE approval is valid for one year from the issue date of publication, and participants may submit the quiz at any time during that period.

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1. What trend did Haxton et al. highlight as a factor in increasing the technological feasibility of n-tree distance sampling?
a) The advent of computer systems with ever more sophisticated data processing capabilities.
b) The advent of portable rangefinders with ever more sophisticated brush-filtering capacity
c) The advent of new algorithms that can allow technicians to identify individual trees easily using LiDAR data
2. What particular factor do Haxton et al. suggest may have contributed to the poor performance of n-tree distance sampling for density estimation on stem map TH75?
a) The presence of three large-diameter Douglas-fir trees that effectively excluded all other trees from within a 0.38-ac area
b) An unusually high number of small western hemlock trees in the understory
c) The relatively high stem density and clustered nature of bigleaf maple and red alder trees

3. In their article describing development of their mapping tool, Chojnacky and Miller identified which of the following as a key link to their analysis?
a) The cover type modeled from FIA basal area data and auxiliary spatial variables.
b) The spatial partitioning of FIA data for optimal mapping.
c) The devised ad hoc elevation and ecoregion classes.
4. If a landowner in the Pacific Northwest chooses to retain an unsafe snag during harvest, current OSHA regulations define an inoperable safety buffer that must remain. According to the article by Kroll et al., what is the approximate dollar value foregone for choosing to retain four 15-meter tall Douglas-fir snags/ha?
a) $14,000
b) $30,000
c) $4000

5. Selecting appropriate species of birds and bats for investigating population level responses to snag management prescriptions requires identification of species that are common, sufficiently abundant to detect measured responses when they occur and that rely on snags to satisfy life-history requirements. Kroll et al. recommend which focal species to be investigated?
a) Vaux's swift and California myotis
b) Brown creeper and western long-eared myotis
c) Pileated woodpecker and long legged myotis

6. The wood duck described in the article by Lyons and Ewart is designed to:
a) affect directional falling of trees with heavy leans.
b) remove the faller from the base of the tree when the tree begins to displace.
c) reduce overuse injuries due to manually driving wedges.
7. The conical screw wedge was rejected as a potential design because:
a) ) it was difficult to drive.
b) the thread would strip when high torques were applied.
c) high friction with the wood resulted in dangerously high torque loads being applied to the holding wood.

8. According to O'Hara et al., variable-density thinning differs from precommercial thinning in that:
a) it doesn't apply to young stands.
b) it has the primary focus of enhancing variability.
c) it doesn't take residual spacing into account.
9. O'Hara et al. concluded that the marking/thinning protocols that produced the most stand-level diversity were:
a) were the simplest to implement.
b) were the same level of operational difficulty as other treatments.
c) were the most difficult to implement.

10. The Oregon Forest Practice Rules emphasize "durable surfacing" and "other effective measures" for reducing the amount of sediment entering streams from forest roads. In their article Bowers and Reeb mention that other measures include:
a) ditching, cross drains, filtering and water bars.
b) subgrade reconstruction, ditching, cross drains, and durable surfacing.
c) ditching, cross drains, filtering and settling ponds.