Index Catalog // ScholarsArchive@OSU

Geographic, climatic, and chemical differentiation in the Hypogymnia imshaugii species complex (Lecanoromycetes, Parmeliaceae) in North America

Creator:: McCune, Bruce, Schoch, Conrad, Root, Heather T., Kageyama, Stacie A., and Miadlikowska, Jolanta
Abstract:: Hypogymnia imshaugii is one of the most common, conspicuous and morphologically variable epiphytic lichens of the Pacific coastal states and provinces. The species varies greatly in morphology and chemistry, suggesting multiple closely related species or one or more phenotypically plastic species. We sought to determine whether additional ecologically meaningful species...
Resource Type:: Article
Full Text:: Hypogymnia imshaugii species complex (Lecanoromycetes, Parmeliaceae) in North America Bruce McCune1,5

Environmental conditions required for contrail formation and persistance

Creator:: Jensen, Eric J., Toon, Owen B., Kinne, Stefan, Sachse, Glen W., Anderson, Bruce E., Chan, K. Roland, Twohy, Cynthia, Gandrud, Bruce W., Heymsfield, Andrew J., and Maike-Lye, Richard C.
Abstract:: The ambient temperatures and humidities required for contrail formation and persistence are determined from in situ measurements during the Subsonic Aircraft: Contrail and Cloud Effects Special Study (SUCCESS) experiment. Ambient temperatures and water vapor concentrations were measured with the meteorological measurement system, a laser hygrometer, and a cryogenic hygrometer (all...
Resource Type:: Article
Full Text:: Stefan Kinne, • Glen W. Sachse, 4 Bruce E. Anderson, 4 K. Roland Chan, • Cynthia H. Twohy, s Bruce

A focused look at the Alpine fault, New Zealand: seismicity, focal mechanisms, and stress observations

Creator:: Leitner, Beate, Eberhart-Phillips, Donna, Anderson, Helen, and Nabelek, John L.
Abstract:: The Alpine fault is the Pacific-Australian plate boundary in the South Island of New Zealand. This study analyzes 195 earthquakes recorded during the 6 month duration of the Southern Alps Passive Seismic Experiment (SAPSE) in 1995/1996 and two M₁. 5.0 earthquakes and aftershocks in 1997, which occurred close to the...
Resource Type:: Article

Electron microscope analysis of residual particles from aircraft contrails

Creator:: Twohy, Cynthia and Gandrud, Bruce W.
Abstract:: Ice crystal larger than about 5 μm diameter were separated from interstitial particles in aircraft contrails and evaporated. Residual particles larger than 0.1 μm were analyzed by electron microscopy. Soot, metals, and volatile organic substances, apparently from the aircraft exhaust, were found. However, the residual particles also contained high percentages...
Resource Type:: Article
Full Text:: microscope analysis of residual particles from aircraft contrails Cynthia H. Twohy and Bruce W. Gandrud

Federal Policy, Rural Community Growth, and Wealth Creation: The Impact of the Federal Forest Policy and Rural Development Spending in the Pacific Northwest

Creator:: Chen, Yong and Weber, Bruce
Abstract:: "In this paper, we use community-level data from Oregon’s 234 rural communities, which we define as incorporated cities with less than 50,000 people, to analyze Federal forest policy. We hypothesize that positive policy impacts due to amenity-related migration were confined to nearby communities, while the negative impacts due to mill...
Resource Type:: Article
Full Text:: Northwest Yong Chen and Bruce Weber  For many rural communities in the western United States

DC-8-based observations of aircraft CO, CH₄, N₂O, H₂O(G) emission indices during SUCCESS

Creator:: Vay, S. A., Anderson, B. E., Sachse, G. W., Collins, J. E., Podolske, J. R., Twohy, Cynthia, Gandrud, Bruce W., Chan, K. Rolan, Baughcum, S. L., and Wallio, H. A.
Abstract:: We report the first measurements of CO₂, CH₄, N₂O, CO₂, and H₂O(g) in the exhaust trails of T-39, B-757, and DC-8 aircraft at cruise conditions. Emission indices (El) derived from these in-situ measurements are presented. Results are in agreement with ground-based tests indicating aircraft act as a net sink for...
Resource Type:: Article
Full Text:: aircraft CO, CH4, N:O, and HaO(g• emission indices during SUCCESS S. A. Vay, • B. E. Anderson, • G. W

Acceptance, Acceptability, and Trust for Sagebrush Restoration Options in the Great Basin: A Longitudinal Perspective

Creator:: Gordon, Ryan, Brunson, Mark W., and Shindler, Bruce
Abstract:: In surveys of residents in three urban and three rural locations in the Great Basin we examined the social acceptability of six management practices showing promise for restoring sagebrush-dominated rangelands. Unlike most studies of range management perceptions that have relied on single measurements, we used longitudinal data from a questionnaire...
Resource Type:: Article
Full Text:: Longitudinal Perspective Ryan Gordon,1 Mark W. Brunson,2 and Bruce Shindler3 Authors are 1Executive Director

A new corticolous species of Rinodina (Physciaceae) and two interesting range extensions for species collected from Katmai National Park, Alaska

Creator:: Sheard, John W., McCune, Bruce, and Tønsberg, Tor
Abstract:: Rinodina pallidescens is described as a new species, endemic to southern Alaska. Rinodina buckii and R. oregana are discussed in terms of their range extensions and possible phytogeographic histories.
Resource Type:: Article
Full Text:: 1,4, Bruce McCune 2 and Tor Tønsberg 3 4 5 1 Department of Biology, University of Saskatchewan

Dynamics of coastal meta-ecosystems: the intermittent upwelling hypothesis and a test in rocky intertidal regions

Creator:: Menge, Bruce A. and Menge, Duncan N. L.
Abstract:: The intermittent upwelling hypothesis (IUH) predicts that the strength of ecological subsidies, organismal growth responses, and species interactions will vary unimodally along a gradient of upwelling from persistent downwelling to persistent upwelling, with maximal levels at an intermediate or ‘‘intermittent’’ state of upwelling. To test this model, we employed the...
Resource Type:: Article
Full Text:: a test in rocky intertidal regions BRUCE A. MENGE1,4 AND DUNCAN N. L. MENGE2,3,5 1Department of

Mussel selectivity for high-quality food drives carbon inputs into open-coast intertidal ecosystems

Creator:: Bracken, Matthew E. S., Menge, Bruce A., Foley, Melissa M., Sorte, Cascade J. B., Lubchenco, Jane, and Schiel, David R.
Abstract:: Filter-feeding invertebrates consume phytoplankton and detritus and therefore serve as important mediators of the exchange of materials from nearshore pelagic to intertidal benthic ecosystems. Here, we evaluated the linkages between nearshore and intertidal systems on temperate rocky reefs on the coasts of Oregon, USA, and New Zealand’s South Island. We...
Resource Type:: Article
Full Text:: drives carbon inputs into open-coast intertidal ecosystems Matthew E. S. Bracken1,2,*, Bruce A. Menge3

ScholarsArchive@OSU

Geographic, climatic, and chemical differentiation in the Hypogymnia imshaugii species complex (Lecanoromycetes, Parmeliaceae) in North America

Environmental conditions required for contrail formation and persistance

A focused look at the Alpine fault, New Zealand: seismicity, focal mechanisms, and stress observations

Electron microscope analysis of residual particles from aircraft contrails

Federal Policy, Rural Community Growth, and Wealth Creation: The Impact of the Federal Forest Policy and Rural Development Spending in the Pacific Northwest

DC-8-based observations of aircraft CO, CH₄, N₂O, H₂O(G) emission indices during SUCCESS

Acceptance, Acceptability, and Trust for Sagebrush Restoration Options in the Great Basin: A Longitudinal Perspective

A new corticolous species of Rinodina (Physciaceae) and two interesting range extensions for species collected from Katmai National Park, Alaska

Dynamics of coastal meta-ecosystems: the intermittent upwelling hypothesis and a test in rocky intertidal regions

Mussel selectivity for high-quality food drives carbon inputs into open-coast intertidal ecosystems

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