Index Catalog // ScholarsArchive@OSU

Comparing Ecoregional Classifications for Natural Areas Management in the Klamath Region, USA

Creator:: Sarr, Daniel A., Duff, Andrew, Dinger, Eric C., Shafer, Sarah L., Wing, Michael, Seavy, Nathaniel E., and Alexander, John D.
Abstract:: We compared three existing ecoregional classification schemes (Bailey, Omernik, and World Wildlife Fund) with two derived schemes (Omernik Revised and Climate Zones) to explore their effectiveness in explaining species distributions and to better understand natural resource geography in the Klamath Region, USA. We analyzed presence/absence data derived from digital distribution...
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Full Text:: monuments, and one national recreation area) in the Klamath Region of northern California and southern

Why pest plant control and native plant establishment failed : a restoration autopsy

Creator:: Wilson, Mark V., Ingersoll, Cheryl A., Clark, Deborah Louise, 1950-, and Wilson, Mark G.
Abstract:: Explaining restoration failure can be as important as touting success. We used a series of studies to understand the failure of techniques commonly used to restore wetland prairies in the Willamette Valley of western Oregon. Burning, fallowing, and solarization (covering tilled plots with plastic sheeting to heat the soil) had...
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Full Text:: Resource Program of the City of Portland (Oregon) Park & Recreation Bureau. His current work focuses on

Irrigation to Enhance Native Seed Production for Great Basin Restoration

Creator:: Shock, Clinton C., Feibert, Erik B. G., Shaw, Nancy L., Shock, Myrtle P., and Saunders, Lamont D.
Abstract:: Native shrublands and their associated grasses and forbs have been disappearing from the Great Basin as a result of grazing practices, exotic weed invasions, altered fire regimes, climate change and other human impacts. Native forb seed is needed to restore these areas. The irrigation requirements for maximum seed production of...
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Full Text:: seed yield regardless of the natural variations of rainfall or irrigation at Ontario, Oregon

Watercourse-Upland and Elevational Gradients in Spring Vegetation of a Mojave-Great Basin Desert Landscape

Creator:: Abella, Scott R., Craig, Jill E., McPherson, Sara L., and Spencer, Jessica E.
Abstract:: Springs in arid lands provide critical habitat for a variety of species and functions to humans, yet the ecology and management needs of springs to maintain these values are poorly understood. To examine plant communities along spring watercourse-upland gradients, we sampled 12 springs at low (desert) and high (forest) elevations...
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Full Text:: within the study area, all of which had been developed with the intent to improve the availability of

Controls on long-term low explosivity at andesitic arc volcanoes: Insights from Mount Hood, Oregon

Creator:: Koleszar, Alison M., Kent, Adam J. R., Wallace, Paul J., and Scott, William E.
Abstract:: The factors that control the explosivity of silicic volcanoes are critical for hazard assessment, but are often poorly constrained for specific volcanic systems. Mount Hood, Oregon, is a somewhat atypical arc volcano in that it is characterized by a lack of large explosive eruptions over the entire lifetime of the...
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Full Text:: that control the explosivity of silicic volcanoes are critical for hazard assessment, but are often

Methane flux of miniseepage in mud volcanoes of SW Taiwan: Comparison with the data from Europe and Azerbaijan

Creator:: Hong, Wei-Li, Etiope, Giuseppe, Yang, Tsanyao Frank, and Chang, Ping-Yu
Abstract:: Mud volcanoes (MVs) are considered as important methane (CH₄) sources for the atmosphere; gas is not only released from macroseepage, i.e., from craters and visible gas bubbling manifestations, but also from invisible and pervasive exhalation from the ground, named miniseepage. CH₄ flux related to miniseepage was measured only in a...
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Full Text:: : Methane flux of miniseepage in mud volcanoes of SW Taiwan: Comparison with the data from Europe and

Core–periphery dynamics in the Portland, Oregon, region: 1982–2006

Creator:: Lewin, Paul, Weber, Bruce, and Holland, David
Abstract:: The relative strength of positive and negative spillovers of urban development is a long-standing and contested issue in regional and development economics, and the search for spread and backwash effects of development in urban core economies goes back at least 50 years. Using data from IMPLAN and the Bureau of...
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Full Text:: -PERIPHERY DYNAMICS IN THE PORTLAND OREGON REGION: 1982 TO 2006 ABSTRACT The relative strength of

Understanding the Relationship Between Livelihood Constraints of Poor Forest-adjacent Residents, and Illegal Forest Use, at Volcanoes National Park, Rwanda

Creator:: Munanura, Ian E., Backman, Kenneth F., Hallo, Jeffrey C., Powell, Robert B., and Sabuhoro, Edwin
Abstract:: The relationship between livelihoods and forest use is one of the main challenges facing wildlife and habitat conservation in developing countries. Poor residents in forest-adjacent areas are typically perceived to be the main forest users, with use often deemed illegal. However, there is still a limited understanding of livelihood constraints...
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Full Text:: sample of poor residents in communities adjacent to Volcanoes National Park was used to validate the

The sources of volatile and fluid-mobile elements in the Sunda arc: A melt inclusion study from Kawah Ijen and Tambora volcanoes, Indonesia

Creator:: Vigouroux, Nathalie, Wallace, Paul J., Williams-Jones, Glyn, Kelley, Katherine, Kent, Adam J. R., and Williams-Jones, Anthony E.
Abstract:: Subduction zone recycling of volatiles (H₂O, Cl, S, F) is controlled by the nature of subducted materials and the temperature-pressure profile of the downgoing slab. We investigate the variability in volatile and fluid-mobile trace element enrichment in the Sunda arc using melt inclusion data from Kawah Ijen and Tambora volcanoes,...
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Full Text:: such as Ba, Pb, Th and the LREE. The Indonesian volcanoes have variable concentrations of volatile and

Participatory GIS mapping highlights indirect use and existence values of coastal resources and marine conservation areas

Creator:: Scully-Engelmeyer, Kaegan M., Granek, Elise F., Nielsen-Pincus, Max, and Brown, Greg
Abstract:: Consideration of social and cultural dimensions in coastal and marine planning has increased and ecosystem services provide important framing to investigate values and priorities associated with these systems. Research efforts in coastal communities offer insights on social dimensions of ocean and coastal management decisions, but questions remain about how demographics...
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Full Text:: parts of the coast (Fig. 6). Additionally, the Portland, Willamette, and Southern Oregon regions showed

Bird records for the Siletz/Logsden area of Lincoln County that are not given elsewhere

Creator:: Llewellyn, Bob and Bayer, Range D., 1947-
Abstract:: This article includes 609 observations, 531 of which were by Llewellyn. This article is an amalgamation of incidental records for various specific and general areas.
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Full Text:: 12, SE 1/4). (Bayer 1982). Area Studied: ? The Oregon Department of Fish and Wildlife Habitat(s

Bird records for the Saddle Bag Mountain area of Lincoln and Tillamook Counties

Creator:: Bayer, Range D., 1947-, Dirks-Edmunds, Jane Claire, Macnab, James A., and McKey-Fender, Dorothy
Abstract:: The results of 703 observations are given; most of these were made in the 1930's by James Macnab, Jane Claire Dirks-Edmunds, Dorothy McKey-Fender, and others. These results are the most comprehensive throughout the year for any site above 1,000 ft in Lincoln County and hint that bird communities at sites...
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Full Text:: . 1. Introduction) BIRD RECORDS FOR THE SADDLE BAG MOUNTAIN AREA OF LINCOLN AND TILLAMOOK COUNTIES

Environmental and Ecological Effects of Ocean Renewable Energy Development: A Current Synthesis

Creator:: Boehlert, George W. and Gill, Andrew B.
Abstract:: Marine renewable energy promises to assist in the effort to reduce carbon emissions worldwide. As with any large-scale development in the marine environment, however, it comes with uncertainty about potential environmental impacts, most of which have not been adequately evaluated—in part because many of the devices have yet to be...
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Full Text:: and out of the area, seismic surveys at the start of the project, and construction noise. If the

Acoustic response of submarine volcanoes in the Tofua Arc and northern Lau Basin to two great earthquakes

Creator:: Bohnenstiehl, DelWayne R., Dziak, Robert P., Matsumoto, Haru, and Conder, James A.
Abstract:: Using a short-baseline hydrophone array, persistent volcanoacoustic sources are identified within the ambient noise field of the Lau Basin during the period between 2009 January and 2010 April. The submarine volcano West Mata and adjacent volcanic terrains, including the northern Matas and Volcano O, are the most active acoustic sources...
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Full Text:: Acoustic response of submarine volcanoes in the Tofua

Quantifying spatial differences in metabolism in headwater streams

Creator:: Gonzalez-Pinzon, Ricardo, Haggerty, Roy, and Argerich, Alba
Abstract:: Stream functioning includes simultaneous interaction among solute transport, nutrient processing, and metabolism. Metabolism is measured with methods that have limited spatial representativeness and are highly uncertain. These problems restrict development of methods for up-scaling biological processes that mediate nutrient processing. We used the resazurin–resorufin (Raz-Rru) tracer system to estimate metabolism...
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Full Text:: headwater streams of the H. J. Andrews Experimental Forest (Oregon, 24 USA), and present a mathematical

Willingness to Pay for Multiple Seafood Labels in a Niche Market

Creator:: Fonner, Robert and Sylvia, Gil
Abstract:: Regulatory requirements and shifts in consumer preferences have resulted in seafood products bearing multiple information labels. Developing successful seafood marketing strategies requires an understanding of how multilabeled products influence consumer choices. This paper analyzes preferences for four classes of seafood information labels including safety, quality, local, and ecolabels using data...
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Full Text:: Portland, Oregon area of the United States. The experiment asked respondents to make choices between

Comment on ‘‘Post-Wildfire Logging Hinders Regeneration and Increases Fire Risk’’

Creator:: Newton, M., Fitzgerald, S., Rose, R. R., Adams, P. W., Tesch, S. D., Sessions, J., Atzet, T., Powers, R. F., and Skinner, C.
Abstract:: Donato et al. (Brevia, 20 January 2006, p. 352) concluded that logging after wildfire kills natural regeneration and increases fire risk. We argue that their paper lacks adequate context and supporting information to be clearly interpreted by scientists, resource managers, policy-makers, and the public.
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Full Text:: the Bnumber of well-distributed trees per unit area.[ Therefore, their reported results cannot be

Survival and Home-range Size of Northern Spotted Owls in Southwestern Oregon

Creator:: Schilling, Jason W., Dugger, Katie M., and Anthony, Robert G.
Abstract:: In the Klamath province of southwestern Oregon, Northern Spotted Owls (Strix occidentalis caurina) occur in complex, productive forests that historically supported frequent fires of variable severity. However, little is known about the relationships between Spotted Owl survival and home-range size and the characteristics of fire-prone, mixed-conifer forests of the Klamath...
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Full Text:: using a remote-sensed vegetation map of the study area. Estimates of monthly survival ranged from 0.89

The effects of changing climate on estuarine water levels: a United States Pacific Northwest case study

Creator:: Parker, Kai, Hill, David, García-Medina, Gabriel, and Beamer, Jordan
Abstract:: Climate change impacts on extreme water levels (WLs) at two United States Pacific Northwest estuaries are investigated using a multicomponent process-based modeling framework. The integrated impact of climate change on estuarine forcing is considered using a series of sub-models that track changes to oceanic, atmospheric, and hydrologic controls on hydrodynamics....
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Full Text:: channel only near the entrance with the bulk of its area being defined by broad shallow tidal flats. In

Seamount subduction and earthquakes

Creator:: Watts, Anthony B., Koppers, Anthony A. P., and Robinson, David P.
Abstract:: Seamounts are ubiquitous features of the seafloor that form part of the fabric of oceanic crust. When a seamount enters a subduction zone, it has a major affect on forearc morphology, the uplift history of the island arc, and the structure of the downgoing slab. It is not known, however,...
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Full Text:: . Staudigel, H., and D.A. Clague. 2010. The geolog- ical history of deep-sea volcanoes: Biosphere

Intraplate seamounts as a window into deep earth processes

Creator:: Koppers, Anthony A. P. and Watts, Anthony B.
Abstract:: Seamounts are windows into the deep Earth that are helping to elucidate various deep Earth processes. For example, thermal and mechanical properties of oceanic lithosphere can be determined from the flexing of oceanic crust caused by the growth of seamounts on top of it. Seamount trails also are excellent recorders...
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Full Text:: . Batiza, R. 1982. Abundances, distribution and sizes of volcanoes in the Pacific Ocean and implications

Connecting Inventory Information Sources for Landscape Level Analyses

Creator:: Lemay, Valerie and Temesgen, Hailemariam
Abstract:: In forest landscape level analyses, forest information is commonly represented by separate polygons, defined by differences in species composition, stand structure, crown closure, and productivity. The simplest approach to projecting yield of stands over the land base is to create an aggregated yield table, weighted by area of each stand...
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Full Text:: spatial and temporal scales are particularly of interest, since the forested area is very large, and tree

Methods for evaluating crown area profiles of forest stands

Creator:: Dubrasich, Michael E., Hann, David W., and Tappeiner, John C., II
Abstract:: Canopy architectures of five structurally complex forest stands and three structurally simple forest stands in southwest Oregon and the Willamette Valley, Oregon, were evaluated and quantified through crown area profiles. Mixed conifer and mixed conifer-hardwood stands across a range of sites were sampled for crown widths and heights. Crown width...
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Full Text:: above the forest floor. Crown area profiles describe the spatial arrangement of aboveground forest

Estimating Cavity Tree Abundance Using Nearest Neighbor Imputation Methods for Western Oregon and Washington Forests

Creator:: Temesgen, Hailemariam, Barrett, Tara M., and Latta, Greg
Abstract:: Cavity trees contribute to diverse forest structure and wildlife habitat. For a given stand, the size and density of cavity trees indicate its diversity, complexity, and suitability for wildlife habitat. Size and density of cavity trees vary with stand age, density, and structure. Using Forest Inventory and Analysis (FIA) data...
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Full Text:: only 0.25 percent of live trees and 13.8 percent of dead trees in the forests of western Oregon and

What's streamflow got to do with it? A probabilistic simulation of the competing oceanographic and fluvial processes driving extreme along-river water levels

Creator:: Serafin, Katherine A., Ruggiero, Peter, and Parker, Kai
Abstract:: Extreme water levels generating flooding in estuarine and coastal environments are often driven by compound events, where many individual processes such as waves, storm surge, streamflow, and tides coincide. Despite this, extreme water levels are typically modeled in isolated open-coast or estuarine environments, potentially mischaracterizing the true risk of flooding...
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Full Text:: 1. Map of study area (a), which is denoted on the regional map (b) in the black box. The La Push

Vailulu’u Seamount, Samoa: Life and death on an active submarine volcano

Creator:: Staudigel, Hubert, Hart, Stanley R., Pile, Adele, Bailey, Bradley E., Baker, Edward T., Brooke, Sandra, Connelly, Douglas P., Haucke, Lisa, German, Christopher R., Hudson, Ian, Daniel Jones, Koppers, Anthony A. P., Konter, Jasper, Lee, Ray, Pietsch, Theodore W., Tebo, Bradley M., Templeton, Alexis S., Zierenberg, Robert, and Young, Craig M.
Abstract:: Submersible exploration of the Samoan hotspot revealed a new, 300-m-tall, volcanic cone, named Nafanua, in the summit crater of Vailulu’u seamount. Nafanua grew from the 1,000-m-deep crater floor in <4 years and could reach the sea surface within decades. Vents fill Vailulu’u crater with a thick suspension of particulates and...
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Full Text:: of (probably) liquid CO2. The Nafanua summit vent area is inhabited by a thriving population of eels

Phytophthora ramorum colonizes tanoak xylem and is associated with reduced stem water transport

Creator:: Parke, J. L., Oh, E., Voelker, S., Hansen, E. M., Buckles, G., and Lachenbruch, Barbara
Abstract:: Isolation, detection with diagnostic polymerase chain reaction (PCR), and microscopy demonstrated the presence of Phytophthora ramorum in the sapwood of mature, naturally infected tanoak (Lithocarpus densiflorus) trees. The pathogen was strongly associated with discolored sapwood (P < 0.001), and was recovered or detected from 83% of discolored sapwood tissue samples....
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Full Text:: were not apparent in the February 2005 aerial survey (M. McWilliams, Oregon Department of Forestry

High Levels of Relatedness between Brown-Headed Cowbird (Molothrus ater) Nestmates in a Heavily Parasitized Host Community

Creator:: Rivers, James W., Young, Sarah, Gonzalez, Elena G., Horton, Brent, Lock, Justin, and Fleischer, Robert C.
Abstract:: Multiple parasitism of host nests by generalist brood parasites reflects the decisions of laying females and may influence the development and behavior of parasitic young. We used microsatellite and mtDNA control-region haplotype data to examine the relatedness of Brown-headed Cowbird (Molothrus ater) offspring in multiply parasitized nests sampled from a...
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Full Text:: reflects the decisions of laying females and may influence the development and behavior of parasitic young

Trends in Caspian Tern Nesting and Diet in San Francisco Bay: Conservation Implications for Terns and Salmonids

Creator:: Collis, Ken, Roby, Daniel D., Larson, Keith W., Adrean, Lindsay J., Nelson, S. Kim, Evans, Allen F., Hostetter, Nathan, Battaglia, Dan, Lyons, Donald E., Marcella, Tim, and Patterson, Allison
Abstract:: Colony size, nesting ecology and diet of Caspian Terns (Hydroprogne caspia) were investigated in the San Francisco Bay area (SFBA) during 2003-2009 to assess the potential for conservation of the tern breeding population and possible negative effects of predation on survival of juvenile salmonids (Oncorhynchus spp.). Numbers of breeding Caspian...
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Full Text:: investigated in the San Francisco Bay area (SFBA) during 2003-2009 to assess the potential for conservation of

Needs and barriers to expanding urban forestry programs: An assessment of community officials and program managers in the Portland – Vancouver metropolitan region

Creator:: Driscoll, Abbey N., Ries, Paul D., Tilt, Jenna H., and Ganio, Lisa M.
Abstract:: A regional urban forestry initiative, the Portland-Vancouver Metropolitan Regional Urban Forestry Strategy, was recently created in the Portland, Oregon and Vancouver, Washington region of the United States. To inform the development of this initiative, a needs assessment survey was sent to community officials and program managers in the 30 cities...
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Full Text:: , was recently created in the Portland, Oregon and Vancouver, Washington region of the United 9 States

Functional trade-offs in the limb bones of dogs selected for running versus fighting

Creator:: Kemp, T. J., Bachus, K. N., Nairn, J. A., and Carrier, D. R.
Abstract:: The physical demands of rapid and economical running differ from the demands of fighting in ways that may prevent the simultaneous evolution of optimal performance in these two behaviors. Here, we test an hypothesis of functional trade-off in limb bones by measuring mechanical properties of limb bones in two breeds...
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Full Text:: have smaller second moments of area relative to bone length and body mass to minimize the inertia of

Absolute humidity modulates influenza survival, transmission, and seasonality

Creator:: Shaman, Jeffrey and Kohn, Melvin
Abstract:: Influenza A incidence peaks during winter in temperate regions. The basis for this pronounced seasonality is not understood, nor is it well documented how influenza A transmission principally occurs. Previous studies indicate that relative humidity (RH) affects both influenza virus transmission (IVT) and influenza virus survival (IVS). Here, we reanalyze...
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Full Text:: pressure conditions. Conditions represented by the white area in the upper left of the plot were not

An approach to designing a national climate service

Creator:: Miles, E. L., Snover, A. K., Whitely Binder, L. C., Sarachik, E. S., Mote, P. W., and Mantua, N.
Abstract:: Climate variability and change are considerably important for a wide range of human activities and natural ecosystems. Climate science has made major advances during the last two decades, yet climate information is neither routinely useful for nor used in planning. What is needed is a mechanism, a national climate service...
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Full Text:: Group, Center for Science in the Earth System, Joint Institute for the Study of the Atmosphere and Ocean

Comparison of Bite-Count and Rumen Evacuation Techniques to Estimate Cattle Diet Quality

Creator:: Damiran, Daalkhaijav, DelCurto, Timothy, Findholt, Scott L., Johnson, Bruce K., and Vavra, Martin
Abstract:: We conducted a study to compare the bite-count technique (BC) of estimating forage intake and synthesized diet quality to direct estimates of diet quantity and quality with the use of the rumen evacuation technique (RE). We used four rumen-fistulated steers to evaluate both techniques. Four enclosures in a mixed-conifer rangeland...
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Full Text:: National Forest of the Blue Mountains (lat 458150N, long 1188250W) in eastern Oregon. Four separate

Phylogeny and Biogeography of Primula sect. Parryi (Primulaceae)

Creator:: Kelso, Sylvia, Beardsley, Paul M., and Weitemier, Kevin
Abstract:: Primula sect. Parryi comprises five species endemic to western North America: P. parryi, P. angustifolia, P. rusbyi, P. capillaris, and P. cusickiana with four varieties. This section, derived from a clade with representatives in Asia and Europe, exemplifies a phytogeographic pattern in which a widespread species is accompanied by multiple...
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Full Text:: . 3 Current address: Department of Biology, Portland State University, P.O. Box 751, Portland, Oregon

Wave Energy: a Pacific Perspective

Creator:: Paasch, Robert, Ruehl, Kelley, Hovland, Justin, and Meicke, Stephen
Abstract:: This paper illustrates the status of wave energy development in Pacific Rim countries by characterizing the available resource and introducing the region‟s current and potential future leaders in wave energy converter development. It also describes the existing licensing and permitting process as well as potential environmental concerns. Capabilities of Pacific...
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Full Text:: will be split into the following parts: the Pacific Northwest (PNW, consisting of Washington, Oregon

Waterbirds at ponds and fields in the Siletz/Logsden area of Lincoln County

Creator:: Llewellyn, Bob, Schrock, Floyd, Faxon, Darrel, and Bayer, Range D., 1947-
Abstract:: This article is based on a total of 353 observations, many of which were systematic censuses. At West Beaver Pond, Llewellyn made 225 observations of waterbirds during 1982-June 1993. He noted a total of 19 taxa; 53% were seen in five or more of the 10 years with many observations....
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Full Text:: ********************************************************************************************************* WATERBIRDS AT PONDS AND FIELDS IN THE SILETZ/LOGSDEN AREA OF LINCOLN COUNTY Bob Llewellyn, 1821 Moonshine

Multiple steroid and thyroid hormones detected in baleen from eight whale species

Creator:: Lysiak, Nadine S., Moore, Michael J., Hunt, Kathleen E., Robbins, Jooke, Seton, Rosemary E., Buck, C. Loren, and Torres, Leigh G.
Abstract:: Recent studies have demonstrated that some hormones are present in baleen powder from bowhead (Balaena mysticetus) and North Atlantic right (Eubalaena glacialis) whales. To test the potential generalizability of this technique for studies of stress and reproduction in large whales, we sought to determine whether all major classes of steroid...
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Full Text:: Institution, Woods Hole, MA, USA 5Allied Whale, College of the Atlantic, Bar Harbor, ME, USA 6Department of

Schrock's bird records for the Siletz/Logsden area of Lincoln County

Creator:: Schrock, Floyd and Bayer, Range D., 1947-
Abstract:: There were 5,776 records during 1981-1986 observations, with 99% of these observations during Schrock's systematic 1982-1985 observations. He found 32 waterbird and 99 landbird species. 16% of the waterbird species were noted each year during 1982-1985, and 58% of the landbirds were recorded each year. Semimonthly summaries of the observations...
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Full Text:: SILETZ/LOGSDEN AREA OF LINCOLN COUNTY Floyd Schrock, 1304 Melrose Avenue, McMinnville, Oregon 97128

Resistance and Tolerance of Landrace Wheat in Fields Infested with Pratylenchus neglectus and P. thornei

Creator:: Smiley, Richard W., Gourlie, Jennifer A., Yan, Guiping, and Rhinhart, Karl E. L.
Abstract:: Pratylenchus neglectus and P. thornei reduce wheat yields in the Pacific Northwest USA. Resistant landrace cultivars have been identified using controlled environments. Field resistance and tolerance characteristics were compared over three years and two locations for four spring wheat cultivars; the susceptible cultivars Alpowa and Louise, and the resistant landraces...
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Full Text:: low-precipitation regions of the Pacific Northwest (PNW) states of Idaho, Montana, Oregon and

Spatial and temporal patterns of forest disturbance and regrowth within the area of the Northwest Forest Plan

Creator:: Kennedy, Robert E., Yang, Zhiqiang, Cohen, Warren B., Pfaff, Eric, Braaten, Justin, and Nelson, Peder
Abstract:: Understanding fine-grain patterns of forest disturbance and regrowth at the landscape scale is critical for effective management, particularly in forests in western Washington, Oregon, and California, U.S., where the policy known as the Northwest Forest Plan (NWFP) was imposed in 1994 over > 8 million ha of forest in an...
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Full Text:: within the area of the Northwest Forest Plan Remote Sensing of Environment 122 (2012) 117–133 Contents

Relationship Between Wildfire, Salvage Logging, and Occupancy of Nesting Territories by Northern Spotted Owls

Creator:: Clark, Darren A., Anthony, Robert G., and Andrews, Lawrence S.
Abstract:: The northern spotted owl (Strix occidentalis caurina) is one of the most intensively studied raptors in the world; however, little is known about the impacts of wildfire on the subspecies and how they use recently burned areas. Three large-scale wildfires in southwest Oregon provided an opportunity to investigate the short-term...
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Full Text:: Rock burns from 2003 to 2006. Extinction probabilities increased as the combined area of early seral

Waterbird records for the Siletz River and some creeks in the Siletz/Logsden area of Lincoln County

Creator:: Llewellyn, Bob and Bayer, Range D., 1947-
Abstract:: This article is based on a total of 204 observations, many of which were censuses. Between Siletz River Mile (RM) 50.0 and 50.6, Llewellyn made 151 observations of waterbirds during 1981-1993. He noted a total of 12 species; most were seen during several years. Hooded and Common mergansers and American...
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Full Text:: SILETZ RIVER AND SOME CREEKS IN THE SILETZ/LOGSDEN AREA OF LINCOLN COUNTY Bob Llewellyn, 1821 Moonshine

Planning for Change: Assessing the Potential Role of Marine Protected Areas and Fisheries Management Approaches for Resilience Management in a Changing Ocean

Creator:: Kroeker, Kristy J., Carr, Mark H., Raimondi, Peter T., Caselle, Jennifer E., Washburn, Libe, Palumbi, Stephen R., Barth, John A., Chan, Francis, Menge, Bruce A., Milligan, Kristen, Novak, Mark, and White, J. Wilson
Abstract:: Despite progressive policies and continued advances in ocean management, numerous shifts associated with global changes have been observed in marine ecosystems in recent years, including warming, ocean acidification, and deoxygenation. As global change accelerates, science is needed to inform evidence-based management strategies for continued ecosystem services. Resilience management, in which...
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Full Text:: outside of the protected area. In this way, larger individuals could contribute not only to local

A cross-kingdom Nudix enzyme that pre-empts damage in thiamin metabolism

Creator:: Goyer, Aymeric, Hasnain, Ghulam, Frelin, Oceane, Ralat, Maria A., Gregory, Jesse F., III, and Hanson, Andrew D.
Abstract:: Genes specifying the thiamin monophosphate phosphatase and adenylated thiazole diphosphatase steps in fungal and plant thiamin biosynthesis remain unknown, as do genes for thiamin diphosphate (ThDP) hydrolysis in thiamin metabolism. A distinctive Nudix domain fused to thiamin diphosphokinase (Tnr3) in Schizosaccharomyces pombe was evaluated as a candidate for these functions....
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Full Text:: . Hanson†2 *Department of Botany and Plant Pathology, Oregon State University, Hermiston, OR 97838

Strengthening Rural Latinos’ Civic Engagement for Health: The Voceros de Salud Project

Creator:: Lopez-Cevallos, Daniel, Dierwechter, Tatiana, Volkmann, Kelly, and Patton-Lopez, Megan
Abstract:: This article describes the Latino Health Ambassadors Network (Voceros de Salud) project created to support and mobilize Latino community leaders to address health inequalities in a rural Oregon county. Voceros de Salud is discussed as a model that other rural communities may implement towards strengthening Latino civic engagement for health.
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Full Text:: recent years and the passage of Oregon Senate Bill 1080 requiring proof of U.S. citizenship or legal

Thermal regime of the Costa Rican convergent margin: 1. Along‐strike variations in heat flow from probe measurements and estimated from bottom‐simulating reflectors

Creator:: Harris, Robert N., Grevemeyer, Ingo, and Ranero, César R.
Abstract:: The thermal structure of convergent margins provides information related to the tectonics, geodynamics, metamorphism, and fluid flow of active plate boundaries. We report 176 heat flow measurements made with a violin bow style probe across the Costa Rican margin at the Middle America Trench. The probe measurements are collocated with...
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Full Text:: nature and distribution of BSRs in the study area. In general they found that BSRs are widespread in

Jet stream intraseasonal oscillations drive dominant ecosystem variations in Oregon’s summertime coastal upwelling system

Creator:: Bane, John M., Spitz, Yvette H., Letelier, Ricardo M., and Peterson, William T.
Abstract:: Summertime wind stress along the coast of the northwestern United States typically exhibits intraseasonal oscillations (ISOs) with periods from ≈15 to 40 days, as well as fluctuations on the 2- to 6-day “weather-band” and 1-day diurnal time scales. Coastal upwelling of cool, nutrient-rich water is driven by extended periods of...
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Full Text:: eastward through the area. A several-day-long episode of southward winds off Oregon typically results when

Abundance, movements, and feeding habits of harbor seals, Phoca vitulina, at Netarts and Tillamook Bays, Oregon

Creator:: Brown, Robin F. and Mate, Bruce R.
Abstract:: Patterns of seasonal abundance of harbor seals at Netarts and Tillamook Bays, Oregon, were documented by recording numbers of seals hauling out on tidally exposed sand flats in both bays. Harbor seal abundance at Tillamook Bay peaked during pupping (May-June) and molting (August) periods, while peak abundance at Netarts Bay...
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Full Text:: II km II km FIGURE 1.Harbor seal study area of Netarts and Tillaniook Bays on the northern Oregon

Exploring biophysical linkages between coastal forestry management practices and aquatic bivalve contaminant exposure

Creator:: Scully-Engelmeyer, Kaegan, Granek, Elise F., Nielsen-Pincus, Max, Lanier, Andy, Rumrill, Steven S., Moran, Patrick, Nilsen, Elena, Hladik, Michelle L., and Pillsbury, Lori
Abstract:: Terrestrial land use activities present cross-ecosystem threats to riverine and marine species and processes. Specifically, pesticide runoff can disrupt hormonal, reproductive, and developmental processes in aquatic organisms, yet non-point source pollution is difficult to trace and quantify. In Oregon, U.S.A., state and federal forestry pesticide regulations, designed to meet regulatory...
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Full Text:: contrast, on federal lands in Oregon west of Toxics 2021, 9, 46 3 of 25 the Cascade Mountain Range

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