Index Catalog // ScholarsArchive@OSU

An investigation into modeling snow cover elements at Crater Lake National Park and surrounding environs as an improved "ground truth" method for satellite snow observations

Creator:: Hamilton, William L.
Abstract:: Streamflow forecasts are essential to the optimal operation of hydroelectric and irrigation reservoirs in the Pacific Northwest. Satellite snow cover observations would aid in these streamflow forecasts by providing snow cover data at regular time intervals. Unfortunately, satellite capability to remotely sense mountain snow cover conditions is indeterminate due to...
Resource Type:: Dissertation
Full Text:: thanks to the members of my committee: Dr. Gordon E. Matzke, Dr. Keith Muckleston, Dr. Edward E. Starkey

An assessment of southern Oregon clearcut and shelterwood cut cover types using LANDSAT MSS digital and supporting aircraft data

Creator:: Hawley, David Llewellyn
Abstract:: The feasibility of utilizing LANDSAT MSS data in assessing surface cover types and areal extent of clearcut and shelterwood cut harvest sites in southern Oregon was investigated. The research utilized extensive 'ground truth' information to evaluate the LANDSAT data. A three faceted ground truth collection scheme analyzed 1) U.S. Forest...
Resource Type:: Dissertation
Full Text:: editorial comments. Dr. J. Granville Jensen, Dr. Charles L. Rosenfeld, Dr. Edward E. Starkey and Dr

Human influences on historical and current wildlife distributions from Lewis & Clark to today

Creator:: Laliberte, Andrea S.
Abstract:: Although it is well known that humans are strong modifiers of their environment, there is a need for greater understanding of human-wildlife interactions, both historically as well as currently. Historical journals can help shed light on early human-wildlife interactions, and the Lewis & Clark journals contain some of the earliest...
Resource Type:: Dissertation

In vitro culture and growth modeling of Tuber spp. and inoculation of hardwoods with T. melanosporum ascospores

Creator:: Michaels, Thomas Joseph
Abstract:: In vitro growth of twelve isolates of Tither spp., the true truffles, was quantified by an agar-melt procedure. All isolates grew poorly on media commonly used for the culture of mycorrhizal fungi, but responded markedly to the addition of nitrate, as well as other inorganic ions, to malt and potato-dextrose...
Resource Type:: Dissertation

Use of livestock to improve the quality of elk winter range forage in northeastern Oregon

Creator:: Clark, Patrick Eugene
Abstract:: The effects of late spring defoliation on the winter forage quality of bluebunch wheatgrass (Agropyron spicatum [Pursh] Scribn. & Smith), Idaho fescue (Festuca idahoensis Elmer) and elk sedge (Carex geyeri Boott) and the response of wintering Rocky Mountain elk (Cervus elaphus nelsoni Bailey) to changes in winter range forage quality...
Resource Type:: Dissertation
Full Text:: other members of my graduate committee; Dr. James Moore, Dr. Edward Starkey, Dr. David Thomas, and Dr

Response of arthropods to different intensities of thinning in Oregon

Creator:: Yi, Hoonbok
Abstract:: The process of silvicultural thinning has become very controversial recently with regards to fire protection and management for old-growth conditions and biodiversity. Therefore, an unthinned control stand and 3 different thinning intensities were examined for their effects on the abundance, species richness, and diversity of arthropods in thinning treatments of...
Resource Type:: Dissertation

Seasonal response of bitterbrush to burning and clipping in eastern Oregon

Creator:: Clark, Robert G.
Abstract:: Bitterbrush [Purshia tridentata (Pursh) DC] plants were burned or clipped, fall and spring, under different soil moisture conditions on two sites in east-central Oregon. Treatments, on plants of an erect growth form on the Juniperus/Artemisia-Purshia site resulted in 38% of the fall-clipped and 40% of the spring-clipped plants sprouting. None...
Resource Type:: Masters Thesis
Full Text:: other members of my committee, Dr. W. C. Krueger, Dr. E. E. Starkey, and Dr. A. H. Winward, for their

An investigation into the comparative utility of color infrared aerial photography and LANDSAT data for detailed surface cover type mapping within Crater Lake National Park, Oregon

Creator:: Walsh, Stephen Joseph, 1951-
Abstract:: The identification and mapping of surface cover types within Crater Lake National Park, Oregon, has been effectively completed through the utilization of LANDSAT digital data and NASA U-2 color infrared aerial photography. Classification of LANDSAT data for surface cover type identification and mapping was accomplished through use of the Interactive...
Resource Type:: Dissertation

Roosevelt elk habitat use in the Oregon Coast Range

Creator:: Witmer, Gary William
Abstract:: Daily and seasonal habitat use by Roosevelt elk was investigated in the Oregon Coast Range on managed, public forestland. Over 3,700 locations of 6 radio-collared cow elk were recorded during 12 consecutive months. Two elk formed part of a north band and 4 elk were part of a south band....
Resource Type:: Dissertation
Full Text:: Witmer offered substantial expertise: Drs. DS. deCalesta, E.C. Meslow, E.E. Starkey, N.A. }fartmann, and

Plant communities and habitat types in the Lava Beds National Monument, California

Creator:: Erhard, Dean Hamilton
Resource Type:: Masters Thesis

ScholarsArchive@OSU

An investigation into modeling snow cover elements at Crater Lake National Park and surrounding environs as an improved "ground truth" method for satellite snow observations

An assessment of southern Oregon clearcut and shelterwood cut cover types using LANDSAT MSS digital and supporting aircraft data

Human influences on historical and current wildlife distributions from Lewis & Clark to today

In vitro culture and growth modeling of Tuber spp. and inoculation of hardwoods with T. melanosporum ascospores

Use of livestock to improve the quality of elk winter range forage in northeastern Oregon

Response of arthropods to different intensities of thinning in Oregon

Seasonal response of bitterbrush to burning and clipping in eastern Oregon

An investigation into the comparative utility of color infrared aerial photography and LANDSAT data for detailed surface cover type mapping within Crater Lake National Park, Oregon

Roosevelt elk habitat use in the Oregon Coast Range

Plant communities and habitat types in the Lava Beds National Monument, California

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