Index Catalog // ScholarsArchive@OSU

Establishment and growth of natural and planted conifers ten years after overstory thinning and vegetation control in 50-year-old Douglas-fir stands

Creator:: Nabel, Mark R.
Abstract:: Forest managers of public lands in western Oregon and Washington have become increasingly interested in creating additional conifer cohorts in young, even-aged, second-growth Douglas-fir stands. The purpose of our research was to assess the establishment, survival, and growth of naturally-regenerated and underplanted conifers 10-13 years after overstory thinning and understory...
Resource Type:: Masters Thesis
Full Text:: ., Doescher, P.S., St. Pierre, E., and Tappeiner, J.C. 1998. Understory vegetation in old and young Douglas

Influences of salvage logging on forest birds after fire in the eastern Cascades, Oregon

Creator:: Cahall, Rebecca E.
Abstract:: Previous research examining the influences of post-fire salvage logging on abundances of birds has focused primarily on the response of cavity-nesting species. There is limited research in regard to the impact of salvage logging on a broader range of bird species. In addition, little is known about how different intensities...
Resource Type:: Masters Thesis
Full Text:: OF THE THESIS OF Rebecca E. Cahall for the degree of Master of Science in Forest Science

Seasonal estimates of nitrogen fixation by Alnus rubra and Ceanothus species in western Oregon forest ecosystems

Creator:: Kim, Dong Yeob
Abstract:: Two case studies of 5 ecosystems were used to examine the nitrogen fixation rate of red alder (Alnus rubra Bong.), varnishleaf (Ceanothus velutinus var. laevigatus (Hook.) T. & G.), deerbrush (C. i ntegerrimus H. & A.), and snowbrush (C. velutinus var. velutinus Dougl. Ex Hook). The first case study assayed...
Resource Type:: Masters Thesis
Full Text:: from the other committee members, Drs. David E. Hibbs, David D. Myrold, and Russell E. Ingham. I

Tree species-soils relationships in old-growth forests of the Oregon Coast Range

Creator:: Cross, Alison
Abstract:: Tree species directly and indirectly affect soil nutrient cycles. I sought to characterize soils and foliage associated with four common canopy tree species (Douglas-fir, western hemlock, western redcedar, and bigleaf maple) in mixed-species old-growth forests of the Oregon Coast Range and to determine whether and how soils differ among the...
Resource Type:: Masters Thesis
Full Text:: QuikChem 8000 flow-injection autoanlyzer (QuikChem Methods 12-107-06-2-E and 12-107-04-1-H, Lachat

Presence, relative abundance, and resource selection of bats in managed forest landscapes in western Oregon

Creator:: Arnett, Edward B.
Abstract:: I studied presence, relative abundance, and resource selection of bats in managed Douglas-fir (Pseudotsuga menziesii) forests in western Oregon from May through September, 1999–2001. Species richness was not related to elevation, density of snags, or length of edge or perennial streams in sampled landscapes. I captured bats more frequently in...
Resource Type:: Dissertation
Full Text:: to thank members of my original committee, Drs. John Hayes, David Hibbs, Darrell Ross, Richard

Distribution of bats in Southeast Alaska and selection of day-roosts in trees by Keen’s myotis on Prince of Wales Island, Southeast Alaska

Creator:: Boland, Julia L.
Abstract:: We conducted capture and acoustic surveys for bats in six areas along a latitudinal gradient in Southeast Alaska from mid-May to September in 2005 and we continued surveys on Prince of Wales Island from mid-May to September in 2006. We determined the level of effort required to catch each species...
Resource Type:: Masters Thesis
Full Text:: District who generously provided knowledge, support, and acoustic gear. Many, many thanks to David Rak

Functional relationships among vegetation, nocturnal insects, and bats in riparian areas of the Oregon Coast Range

Creator:: Ober, Holly K.
Abstract:: Vegetation provides food for many insects, and many insects serve as food for bats. We investigated the linkages among these three trophic levels in riparian areas throughout the Oregon Coast Range by examining the influence of vegetation cover, composition, and structure on the activity of nocturnal insects and bats, the...
Resource Type:: Dissertation
Full Text:: ................................................................................................... 210 E. Macro-moths captured in conifer- and deciduous-dominated stream reaches..... 212 F

Pruning young Douglas-fir (Pseudotsuga menziesii [mirb.] Franco) in a western Oregon agroforestry setting : changes in tree water relations and effects on forage production

Creator:: Withrow-Robinson, Bradford A.
Abstract:: There is renewed interest in agroforestry as a management strategy for marginal agricultural lands in western Oregon. Silvopastoral systems combine tree and forage production, which involve crops and practices familiar to the area. The objective of this study was to determine how management influences the physiology and ecological interactions of...
Resource Type:: Masters Thesis

The influence of forest management on headwater stream amphibians at multiple spatial scales

Creator:: Stoddard, Margo A.
Abstract:: To effectively manage for biodiversity at broad, ecosystem scales, the influences of habitat structure at multiple spatial scales on vertebrate species must be understood. There are few studies on the broad-scale habitat requirements of stream amphibians despite their importance in streams in forest ecosystems in the Pacific Northwest (PNW) as...
Resource Type:: Masters Thesis
Full Text:: committee members Dr. Dede Olson and Dr. David Hibbs for their advice on study design during the early

Patterns in understory vegetation communities across canopy gaps in young, Douglas-fir forests of western Oregon

Creator:: Fahey, Robert T.
Abstract:: Canopy gap formation is a major factor contributing to maintenance of overstory species diversity and stand structure in forests and may be integral to development of understory shrub and herb layers as well. Acknowledgement of gap formation as a fundamental feature of natural forests has led to consideration of gaps...
Resource Type:: Masters Thesis
Full Text:: . Doescher, E. St Pierre, and J. C. Tappeiner. 1998. Understory vegetation in old and young Douglas-fir

ScholarsArchive@OSU

Establishment and growth of natural and planted conifers ten years after overstory thinning and vegetation control in 50-year-old Douglas-fir stands

Influences of salvage logging on forest birds after fire in the eastern Cascades, Oregon

Seasonal estimates of nitrogen fixation by Alnus rubra and Ceanothus species in western Oregon forest ecosystems

Tree species-soils relationships in old-growth forests of the Oregon Coast Range

Presence, relative abundance, and resource selection of bats in managed forest landscapes in western Oregon

Distribution of bats in Southeast Alaska and selection of day-roosts in trees by Keen’s myotis on Prince of Wales Island, Southeast Alaska

Functional relationships among vegetation, nocturnal insects, and bats in riparian areas of the Oregon Coast Range

Pruning young Douglas-fir (Pseudotsuga menziesii [mirb.] Franco) in a western Oregon agroforestry setting : changes in tree water relations and effects on forage production

The influence of forest management on headwater stream amphibians at multiple spatial scales

Patterns in understory vegetation communities across canopy gaps in young, Douglas-fir forests of western Oregon

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