An Examination of Commercial Medicinal Plant Harvests, Mount Hood National Forest, Oregon

Abstract Feeding damage by black bears (Ursus americanus) to urea-fertilized 25-yr-old Douglas-firs (Pseudotsuga menziesii) in the Mount Hood National Forest, Oregon, resulted in tree mortality four times as severe as among unfertilized trees. Damage was most apparent following application of urea at 448 kg N/ha in 1972, and 224 kg N/ha in 1977. Only Douglas-fir, the dominant species in the stand, was attacked. Attacked trees were somewhat larger than the stand average, but the difference was not significant. Bears appeared to be attracted to the more vigorous trees, which were on fertilized plots. West. J. Appl. For. 4(1):13-15, January 1989.

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Demographic and leaf attribute data for beargrass (Xerophyllum tenax Melanthiaceae) from Mount Hood National Forest, Oregon

Forest Service Research Data Archive ◽

10.2737/rds-2019-0028 ◽

2019 ◽

Author(s):

Georgia M. Hart-Fredeluces ◽

Tamara B. Ticktin

Keyword(s):

National Forest ◽

Attribute Data ◽

Mount Hood ◽

Xerophyllum Tenax

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Heritage Management in the U.S. Forest Service: A Mount Hood National Forest Case Study

Society & Natural Resources ◽

10.1080/089419202753570837 ◽

2002 ◽

Vol 15 (4) ◽

pp. 359-369 ◽

Cited By ~ 1

Author(s):

Grace A. Wang ◽

Dorothy H. Anderson ◽

Pamela J. Jakes

Keyword(s):

Forest Service ◽

Heritage Management ◽

National Forest ◽

Mount Hood ◽

The U.S

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Description of the mature larva of Pedilus flabellatus (Coleoptera: Pyrochroidae: Pedilinae), with phylogenetic implications of the discovery

Canadian Journal of Zoology ◽

10.1139/z91-312 ◽

1991 ◽

Vol 69 (8) ◽

pp. 2234-2238 ◽

Cited By ~ 4

Author(s):

Daniel K. Young ◽

Darren Pollock

Keyword(s):

Pseudotsuga Menziesii ◽

Adult Stage ◽

National Forest ◽

Species Identity ◽

Mature Larva ◽

Phylogenetic Implications ◽

Mount Hood

The larva of Pedilus flabellatus (Horn) was collected from debris associated with the base of a dead, standing Pseudotsuga menziesii in the Mount Hood National Forest, Oregon; it is described and illustrated. Species identity was established by rearing a larva to the adult stage. The larva of Pedilus flabellatus holds meaningful phylogenetic implications. The presence of an uninterrupted transverse series of asperities on sternum 9 is unique among larvae of Pedilus, and supports the previously hypothesized classification of the Pyrochroidae: Pyrochroinae + Pedilinae + Cononotinae. This character is discussed with respect to its presence in the Pyrochroidae and other families of Heteromera.

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