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Creator:: Robbins, Richard William
Abstract:: This study evaluated the effect of soil compaction on the growth of natural regeneration on volcanic ash-influenced soils in the southern Washington Cascades. Growth of 9 to 18 year-old sapling-. sized Ponderosa pine (Pinus ponderosa Laws.) was studied on sites ranging from 915 to 1006 m elevation in an area...
Resource Type:: Masters Thesis

Creator:: Tyler, Torrey J.
Abstract:: The long-toed salamander (Ambystoma macrodactylum) is the top vertebrate predator in fishless high-elevation lakes in North Cascades National Park Service Complex (NOCA), Washington. The purpose of this research was to determine the effects of physico-chemical factors and introduced trout on abundance and behavior of A. macrodactylum larvae. Although high-elevation lakes...
Resource Type:: Masters Thesis
Full Text:: sampled from 1990 to 1994. Larval salamander density and behavior were assessed by snorkeling lake

Creator:: Frenzen, Peter M.
Abstract:: Information concerning the factors controlling seedling establishment on tephra deposits (airfall volcanic ejecta) is limited. The establishment and growth of six coniferous species, Abies amabills (Dougl.) Forbes (Pacific silver fir), A. procera Rehd. (noble fir), Pinus monticola Dougl. (western white pine), P. Contorta Dougl. (lodgepole pine), Pseudotsuga menziesii (Mirb.) Franco...
Resource Type:: Masters Thesis

Creator:: Blackman, Tara Elizabeth
Abstract:: In this study, I examine the influence of habitat gradients created by the 1980 eruption of Mount St. Helens, Washington USA on a recently established Rainbow Trout (Oncorhynchus mykiss) population in the Spirit Lake basin. My goal was to evaluate the responses of fish in seven streams across a volcanic...
Resource Type:: Masters Thesis
Full Text:: ) population in the Spirit Lake basin. My goal was to evaluate the responses of fish in seven streams across

Creator:: Brunson, Mark W.
Abstract:: Research on campsite selection behavior has given managers of outdoor recreation resources a better understanding of users' needs and preferences. However, researchers have found nagging inconsistencies, not only across settings but also between campers' stated preferences and their actual behavior. This thesis re-examines the campsite selection research in light of...
Resource Type:: Masters Thesis

Creator:: Wu, Renpo
Resource Type:: Masters Thesis
Full Text:: SEDIMENTS by Renpo Wu A THESIS submitted to Oregon State University in partial fulfillment of the

Creator:: Napier, Jonathan Bamberger
Abstract:: Concentration ratios are used to determine the transfer of nuclides from soil to biota to fauna. Some nuclides have limited associated data though, this has not prevented predictions from being performed at sites without associated data. These ratios are site specific and are not fully applicable when applied to other...
Resource Type:: Masters Thesis
Full Text:: Bamberger Napier A THESIS submitted to Oregon State University in partial

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