The schist of Skookum Gulch (SSG) is an informal name applied to
a fault-bounded melange composed mainly of schistose metamorphic
rocks and less abundant sedimentary and igneous rocks located in the
eastern Klamath Mountains of northern California. The SSG features
outcrops of lawsonite+sodic amphibole blueschist and epidote+sodic
amphibole rocks transitional...
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majority of the area is privately owned, and the rest is
controlled by the Bureau of Land Management
This paper analyzes the fiscal and land value impacts of public open-space conservation in a budget-constrained
city. It derives the necessary and sufficient conditions for open-space conservation to increase the level of municipal
services and the total land value within the city. The theoretical results, together with the empirical evidence...
Vegetative propagation allows the amplification of selected genotypes for research,
breeding, and commercial planting. However, efficient in vitro regeneration and
genetic transformation remains a major obstacle to research and commercial
application in many plant species. Our aims are to improve knowledge of gene
regulatory circuits important to meristem organization, and...
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been made to
increase forest productivity and reduce the ecological impacts ofresource extraction
Rationale:
The sampling of sequential, annually formed bone growth layers for stable carbon (δ¹³C values) and nitrogen (δ¹⁵N values) isotope analysis (SIA) can provide a time series of foraging ecology data. To date, no standard protocol exists for the pre-SIA treatment of cortical samples taken from fresh, modern, bones.
Methods:...
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questions critical
to population conservation andmanagementof multiple
endangered and otherwise important
Interannual variability in salmon (Oncorhynchus spp.) production in the northeast Pacific is understood to be driven by oceanographic variability and bottom-up processes affecting prey availability to juvenile salmon. Scyphozoan jellyfish have an important role in shaping the pathways of energy flow through pelagic food webs. While jellyfish obtain high production...
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the same water content
as that of fish: dry weight:wet weight of
fish = 0.3 and dry weight:wet
This research focuses on events surrounding the activities of Battery
Freeman, a coastal defense facility constructed within the earthworks of "old" Fort
Stevens near Astoria, OR, in 1900 and destroyed in 1939. Archival data are used
in conjunction with nearly 5,000 artifacts that were recovered from archaeological
excavations in 1989...
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). Although the ditch was meant to be dry, it was often filled with
water because of the poor drainage and
Institutions of higher education have experienced a rapid increase in international student enrollment within a short period of time, especially in mathematics classrooms. It is therefore important for instructors to have the knowledge and skills to support international students in the learning of mathematics. There are few research studies of...
The focus of this grounded theory research was to investigate the problems that those groups closest to students placed in mathematics classes by mathematics ability have and how those parties work to resolve the problems. The main problem found was a conflict between educators and parents over which students deserve...
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. Parents feel that there is a lack of
clarity of grouping filters, curriculum and expectations.
My son
Understanding how intra-specific differences in plant traits mediate vulnerability to herbivores of relevant habitat-forming plants is vital to attain a better knowledge on the drivers of the structure and functioning of ecosystems. Such studies, however, are rare in seagrass-mesograzer systems despite the increasingly recognized relevance of mesograzers as seagrass consumers....
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mutually exclusive defences of plants against
herbivory, resource limitation and competition between
Sweet onions are valued for their unique flavor and praised for their health and dietary character. Onion sweetness is perceived as the degree of pungency decreases. Pungency can be quantitatively determined in onions by measuring enzymatically produced pyruvic acid. The onion industry quantifies a sweet onion as one having a...
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temperature of 37˚C ± 2˚ C, a blender/homogenizer, and have
access to distilled water. The filtration step
This paper addresses how the implementation of North American Free Trade Agreement (NAFTA) has affected the use of Information Technology (IT) in Mexico. In order to answer this question this thesis analyzes the direct and indirect effects of NAFTA on Mexico’s economic and regulatory environment, and how this influences the...
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, technology, management techniques, personnel training and access to foreign markets would develop, all of
Background: A particular health inequity that has drawn national attention is obesity in persons with disabilities (CDC, 2011). Estimates suggest that as many as 80% of adults with mild to moderate intellectual disability (ID) are overweight or obese (Stanish & Draheim, 2005). Despite the benefits of being active (e.g. controlling...
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sedentary behaviors, availability ofresources, safety, and built
environment. However, these barriers are
According to the World Health Organization (2019), every 40 seconds, approximately one person from around the world dies from suicide. The highest percentage of adults with major depression and serious thoughts of suicide are between 18 to 25 years of age (Shen & Millet 2003-2012, p. 31). Studies have indicated...
This report reviews the state of the California Current System (CCS) between winter 2012 and spring 2013, and includes observations from Washington State to Baja California. During 2012, large-scale climate modes indicated the CCS remained in a cool, productive phase present since 2007. The upwelling season was delayed north of...
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(Forney et al. 2012) and are
more frequently sighted during the cooler water peri-
ods of winter and
Seasonal movements, habitat use, home range selection, and
group interactions of Roosevelt elk (Cervus elaphus roosevelti)
were studied in the upper White River watershed in west-central
Washington. Over 2000 locations of 14 elk were recorded by
radio-telemetry from April 1983 to December 1984.
During winter, two herds used clearcut lands...
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impacts of
forest management practices on Mount Rainier elk populations, and
will document elk habitat
This edition contains research updates and a comprehensive list of publications summarizing research conducted by faculty of the Oregon Wine Research Institute at Oregon State University. Dr. Elizabeth Tomasino, OSU associate professor, and Quynh Phan, OSU doctoral candidate, open the newsletter with an article on Pinot noir wine lipid composition....
Satellite image interpretation, geologic mapping, and paleoseismic trenching are
used to investigate the Trans-Yamuna active fault system in the northwestern Doon Valley
of the Indian Himalayan foothills. This east-west fault system is subparallel to and crosses
the Main Boundary thrust near the structural transition from the Nahan salient to the...
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resources.
Tom Fumal at the United States Geological Survey and Ray Weldon at the
University of Oregon
Worldwide measurements of nearly 130C3 species covering all
major plant functional types are analysed in conjunction with
model simulations to determine the effects of mesophyll
conductance (gm) on photosynthetic parameters and their
relationships estimated from A/Ci curves. We find that an
assumption of infinite gm results in up to 75%...
Students will develop and apply reading, language arts, and science processes to analyze comics, and demonstrate writing skills in creating their own comic about a local invasive species.
In the future, Earth will be warmer, precipitation events will be more extreme, global mean sea level will rise, and many arid and semiarid regions will be drier. Human modifications of landscapes will also occur at an accelerated rate as developed areas increase in size and population density. We now...
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wind, erosion tends to lead to a loss of biodiversity and
soil resources, and a decrease in water
Hydrology is the main environmental filter in aquatic ecosystems and may result in shared tolerances and functional traits among species in disparate ecosystems. We analyzed the associations between taxonomic and functional facets of diversity within aquatic ecosystems (ponds vs. streams) across a hydroperiod gradient (1–365 d) to untangle the hydrologic...
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. Hydrology has been a
long- standing focus of both running (lotic)- and
still (lentic)- water research
The Mongolian Steppe is one of the largest remaining grassland ecosystems. Recent studies have reported widespread
decline of vegetation across the steppe and about 70% of this ecosystem is now considered degraded. Among
the scientific community there has been an active debate about whether the observed degradation is related to...
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) Effects of temperature and soil water-
content on soil respiration of grazed and ungrazed Leymus
The Oregon Wave Energy Trust (OWET) commissioned this study to develop protocols and
methods to achieve affordable, reliable, and repeatable electromagnetic (EM) measurements in
the near-shore environment. The study was conducted in several stages, with a number of
technical reports provided at each stage to document and describe findings. The...
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development
and environmental potential of this emerging industry. Our work includes stakeholder outreach
Galápagos marine iguana population sizes have been declining since first contact with humans.This decline has historically been attributed mainly to predation by invasive species, but additional human-caused threats exist today. My thesis conducts an analysis of the present threats to the species and determines which are the most severe.Modern threats...
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discovery of the islands, whalers and
pirates often visited to gather resourcesand food. The Galápagos
The recent increase in awareness of the seismic hazards in Oregon has led to a concern regarding the safety of Oregon State University buildings. While the decision has been made to initiate the seismic rehabilitation of campus facilities, the question of which buildings pose the greatest hazards, and are therefore...
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. Faculty, staff and other university
employees were tabulated by the OSU Office of Budgets andPlanning
This bibliography contains over 1,000 references on health issues in Borneo, organized under 18 topical headings. These reports relate to the past and present health of all the large ethnic groups on the island but few of the smaller ones, since they have received less attention. The bibliography contains textual...
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schooling
and only 54% of the population had a chlorinated water supply.)
3. Abu Bakar Suleiman et al
To examine whether stream nitrogen concentrations in forested reference catchments have
changed over time and if patterns were consistent across the USA, we synthesized up to 44 yr
of data collected from 22 catchments at seven USDA Forest Service Experimental Forests.
Trends in stream nitrogen presented high spatial variability both...
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Research Station, USDA Forest Service Research, Durham, NH, USA.
9.
Dept. of Natural Resourcesand the
The Mongolian Steppe is one of the largest remaining grassland ecosystems. Recent studies have reported widespread
decline of vegetation across the steppe and about 70% of this ecosystem is now considered degraded. Among
the scientific community there has been an active debate about whether the observed degradation is related to...
Full Text:
) Effects of temperature and soil water-content on soil
respiration of grazed and ungrazed Leymus chinensis
The degree of wildfire risk depends on both the probability of an ignition and the potential for damage or harm (such as loss of trees, homes, or even lives). Recognizing that you may have a high wildfire risk is the first step in doing something about it. Whether you own...
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.
Prescribed Burning
Prescribed burning is the controlled use of fire to
achieve specific forest andresource
While robotic systems may have once been relegated to structured environments and automation style tasks, in recent years these boundaries have begun to erode. As robots begin to operate in largely unstructured environments, it becomes more difficult for them to effectively interpret their surroundings. As sensor technology improves, the amount...
It is often noted that young adults tend to be apathetic towards involvement in the political process. The aim of this study is to scratch the surface of this phenomena and, in a scientific fashion, begin to discover if this can be changed. In the study, press releases from members...
Biological nitrogen fixation (BNF) is a key ecological process that can restore nitrogen (N) lost in wildfire and shape the pace and pattern of post-fire forest recovery. To date, there is limited information on how climate and soil fertility interact to influence different pathways of BNF in early forest succession....
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lowering resources such as waterand light
(Pabst et al. 1990, Harrington et al. 1994). We found
that
Macromoth diversity, abundance, and community structure in the topographically complex
HJ Andrews Experimental Forest and LTER site was studied on the west slope of the Cascade Range,
Oregon. Data on 493 macromoth species (62,221 individuals) was sampled eight times/year at 20 locations
from 2004 to 2008 and examined using multivariate...
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1998, Takaoka and Swanson
2008, Highland 2011), so management for pres-
ervation and restoration of
Although early adversity has been linked to worse mental and physical health in adulthood, few studies have investigated the pathways through which positive and negative dimensions of early experiences can jointly influence psychological well-being in later life. This study examined: (a) profiles of early experiences across multiple domains, (b) the...
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State University
Laura D. Kubzansky
Harvard School of Public Health
Edith Chen and Daniel K. Mroczek
Billions of birds migrate at night over North America each year. However, few studies have described the phenology of these movements, such as magnitudes, directions, and speeds, for more than one migration season and at regional scales. In this study, we characterize density, direction, and speed of nocturnally migrating birds...
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turbines and tall, lighted buildings as sources of mortality
for nocturnally migrating birds (Kerlinger et
The rugged Cascade Range of central Oregon has been long regarded as an enigmatic, archaeological puzzle in the study of the Pacific Northwest's ancient past. While ethnographic and archaeological research in the adjacent northern Great Basin, Columbia Plateau and Willamette Valley have revealed a rich and ancient tapestry of Native...
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federal resourcemanagement undertakings. In nearly every case,
functional, chronological and technical
Many cultivars of table grapes (Vitis sp.) are grown in Oregon's Willamette Valley, but with the availability of several new cultivars, it is important to compare their performance to well-established standards in this region. Commonly grown cultivars ("established": Canadice, Interlaken, Jupiter, Lakemont, Neptune, Reliance, and Remaily Seedless) along with new...
The focus of this thesis is to design, characterize, and apply novel computational methods and molecular systems to interrogate heterogeneous human gut microbiome-related phenomena. In Chapter 2, I design, implement, and characterize a method for embedding co-occurrence patterns derived from massive 16s amplicon datasets. I use this method to 1....