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ScholarsArchive at Oregon State University
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Animal and plant species differ dramatically in their quality as hosts for multi-host pathogens, but the causes of this
variation are poorly understood. A group of small mammals, including small rodents and shrews, are among the most
competent...
2014-09-18 (iso8601)
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Body morphology of juvenile Chinook salmon Oncorhynchus tshawytscha in the upper Willamette
River, Oregon, U.S.A., was analysed to determine if variation in body shape is correlated with migratory
life-history tactics followed by juveniles. Body...
2014-10 (iso8601)
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The conflict over water resources exploitation and sharing in the Aral Sea Basin is one of the most pressing environmental issues yet to be resolved in Central Asia. The fall of the Soviet Union in 1991 and establishment of the New Independent...
2014-11-17 (iso8601)
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Effects of climate change, retreating glaciers, and changing storm patterns on debris flow hazards concern
managers in the Cascade Range (USA) and mountainous areas worldwide. During an intense rainstorm in
November 2006, seven debris flows...
2014-12-01 (iso8601)
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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...
2014-09 (iso8601)
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The wind speed response to mesoscale SST variability is investigated over the Agulhas Return Current
region of the Southern Ocean using the Weather Research and Forecasting (WRF) Model and the U.S. Navy
Coupled Ocean–Atmosphere Mesoscale...
2014-11 (iso8601)
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The aims of this study were first, to test the hypothesis that metrics of fish growth and condition relate
positively to parasite species richness (S[subscript R]) in a salmonid host; second, to identify whether S[subscript R] differs as a...
2014-11 (iso8601)
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We investigated the effects of elevated pCO₂ on cultures of the unicellular N₂-fixing cyanobacterium Crocosphaera watsonii
WH8501. Using CO₂-enriched air, cultures grown in batch mode under high light intensity were exposed to initial conditions...
2014-10-24 (iso8601)
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Coastal flood hazard zones and the design of coastal defenses are often devised using the maximum
recorded water level or a ‘‘design’’ event such as the 100 year return level, usually projected from
observed extremes. Despite technological...
2014-09-19 (iso8601)
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Maximum earthquake magnitude (m[subscript x]) is a critical parameter in seismic
hazard and risk analysis. However, some recent large earthquakes have shown that
most of the existing methods for estimating m[subscript x] are inadequate. Moreover,...
2014-10 (iso8601)
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Greenland ice core water isotopic composition (δ¹⁸O) provides detailed evidence for abrupt climate changes, but is by itself insufficient for quantitative reconstruction of past temperatures and their spatial patterns. We investigate Greenland...
2014-09-05 (iso8601)
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The timing of the last interglacial (LIG) thermal
maximum across the globe remains to be precisely assessed.
Because of difficulties in establishing a common temporal
framework between records from different palaeoclimatic
archives retrieved from...
2014-08-29 (iso8601)
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During fall/winter off the Oregon coast, oceanographic surveys are relatively scarce because of rough
weather conditions. This challenge has been overcome by the use of autonomous underwater gliders deployed
along the Newport hydrographic line...
2014-11 (iso8601)
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Temperature data received
post mortem in 2008–13
from 15 of 36 juvenile Steller sea
lions (Eumetopias jubatus) that
had been surgically implanted
in 2005–11 with dual life history
transmitters (LHX tags) indicated
that all 15 animals died by...
2014-10 (iso8601)
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We used multi-season occupancy analyses to model 2 fates of northern spotted owl territories in
relation to habitat amount, habitat fragmentation, and the presence of barred owls in Washington State,
USA, 1989–2005. Local colonization is the...
2014-11 (iso8601)
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Volcanic hazard maps inform the public on the nature and extent of the hazards that threaten them, but these maps are often challenging for those who are not trained in map use or geology. The maps in this study focus on lahars, a dangerous, fast,...
2014-12-01 (iso8601)
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In the Colorado Rocky Mountains, the association of high topography and low seismic
velocity in the underlying mantle suggests that recent changes in lithospheric buoyancy may have
been associated with surface uplift of the range. This paper...
2014-08 (iso8601)
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Sustained time series have provided compelling evidence for progressive acidification of the
surface oceans through exchange with the growing atmospheric reservoir of carbon dioxide. However,
few long-term programs exist, and extrapolation of...
2014-09-28 (iso8601)
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The development of pass-through superconducting rock magnetometers (SRM) has greatly
promoted collection of paleomagnetic data from continuous long-core samples. The output of pass-through
measurement is smoothed and distorted due to convolution...
2014-10 (iso8601)
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We use autonomous gas measurements to examine the metabolic balance (photosynthesis
minus respiration) of coastal Antarctic waters during the spring/summer growth season. Our observations
capture the development of a massive phytoplankton bloom...
2014-10-16 (iso8601)
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Two near-surface dye releases were mapped on scales of minutes to hours temporally, meters to
order 1 km horizontally, and 1–20 m vertically using a scanning, depth-resolving airborne lidar. In both cases,
dye evolved into a series of rolls with...
2014-11-16 (iso8601)
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Acoustic scattering layers are ubiquitous, horizontally extensive aggregations of both vertebrate and invertebrate
organisms that play key roles in oceanic ecosystems. However, currently there are no conventions or widely
adaptable automatic...
2014-11 (iso8601)
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The subarctic-subtropical transition zone in the North Pacific represents the second largest sink of
atmospheric carbon dioxide in the world ocean, yet the relative importance of physical and biological processes in
this uptake is debated. In a...
2014-11 (iso8601)
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Shallow coastal waters serve an important role as long-term carbon (C) sinks because they capture terrestrial C
and retain internally produced C in wetlands and sediments. We show that tropical cyclones (TCs) can lead to
rapid CO₂ efflux from...
2014-09 (iso8601)
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Agencies in the US with oversight for marine renewable energy development have
idealistically sought space where this new use might proceed unhindered by other uses. Despite
experiential evidence of spatial overlap among existing ocean uses, a...
2015-01-05 (iso8601)
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