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Creator:: Sherman, Robert James
Abstract:: Twelve sites of uniform topography and soils were selected in the Pinus ponderosa/Purshia tridentata/Festuca idahoensis Association. These sites were located in the rain shadow on the east flank of the Oregon Cascades. A fire history in the form of fire scars on ponderosa pine was available for nine of these...
Resource Type:: Masters Thesis
Full Text:: .,:,:..-. , ,:.4.^., _i ?r ' 7 .°P:+fi Ar - ." .Ilrd.:i`''' Ct.;t ̀h_i. r r: . .éi+i Ti R. .. : .:r .i g

Creator:: West, Neil E.
Abstract:: Montane forest vegetation as it occurs on the east flank of the central Oregon Cascades has provided excellent conditions for a "natural experiment" in the use of various methodologies in studying vegetational distribution. This "experiment" has reflected on some theory and practice for the discipline of plant synecology. Detailed descriptions,...
Resource Type:: Dissertation
Full Text:: the soils in- formation presented herein. Dr. Roy A. Young and Dean H. P. Hansen gave

Creator:: Sherman, Robert James
Abstract:: Black Butte presents a unique natural laboratory for ecological study. It is a volcanic cone of uniform configuration located in the rain shadow on the east flank of the Oregon Cascades. Soils are of very recent origin with no obvious development of horizons. Physical and chemical analysis revealed little dissimilarity...
Resource Type:: Dissertation
Full Text:: Photograph of Pinus ponderos a- P eudotsuga community with Castanopsis understory. 46 Photograph of the

Creator:: Robinson, Myles Canby
Abstract:: Growth and replacement patterns of four successionally important species occurring on Douglas fir clear-cuts were investigated from September 1964 to June 1967. The study was carried out on the Marys Peak watershed located near Corvallis, Oregon. Species used in the study include Holcus lanatus, Senecio jacobaea, Lotus crassifolius var. subglaber,...
Resource Type:: Dissertation
Full Text:: of this group given by Kienholz include genera such as Trientalis, p}3, @!s, Ach1ys, @!i3,Disporurn

Creator:: Soeriaatmadja, Roehajat Emon, 1936-
Abstract:: Fire has played a prominent role in the development and character of the ponderosa pine forests in western North American. Its records are written in the scars of trees that have survived the fire. Careful studies of these fire-scars may be used as a means of reconstructing the fire history...
Resource Type:: Dissertation
Full Text:: to Mr. Harold Weaver, Forester of the Bureau of Indian Affairs, Portland, Oregon, for his help in

Creator:: Leuthner, Shirley Mae
Abstract:: Distribution of lichens was studied at seven coastal dune sites in Oregon. Lichens were sampled in the dry stable, dry meadow, meadow, rush meadow, marsh, shrub and forest deflation plain communities. Observations were made of the standing water in the marsh community. Quantitative measurements were made of the percent organic...
Resource Type:: Masters Thesis
Full Text:: by Ahmadjian (1967, p. 1) as "a close, long- lasting association of dissimilar organisms, " while

Creator:: Gratkowski, H.
Resource Type:: Dissertation
Full Text:: extending throughout the Coast Ranges from Marin County, California, northward to British Columbia (55, p

Creator:: Gratkowski, H.
Resource Type:: Dissertation
Full Text:: from Marin County, California, northward to British Celumhia (55, p. 291), is one of the most abundant

Creator:: Bailey, Warren Hutchinson, 1914-
Abstract:: At the time of the eruptions of Lassen Peak in 1914-1915, an area of vegetation along the east slope of the mountain approximately 1 1/4 miles wide and four miles long was destroyed. Except for a few surviving trees, all vegetation was destroyed. A study of the revegetation of this...
Resource Type:: Dissertation
Full Text:: Carlbom and Harold Lint of Oregon State University should also be thanked for assistance in plant

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