The recent identification of multiple genotypes of the salmonid parasite Ceratonova shasta with different virulence levels in Chinook salmon (Oncorhynchus tshawytscha) suggests that it may be possible to immunize fish against subsequent infection and disease. We hypothesized that exposure of Chinook salmon to the less virulent parasite genotype (II) prior...
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. Developmental and Comparative Immunology 43:243-256. 239
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Hallett, S. L., and J. L. Bartholomew. 2006
Ceratomyxa shasta is a myxozoan parasite identified as a contributor to salmon mortality in the Klamath River, USA. The parasite has a complex life cycle involving a freshwater polychaete, Manayunkia speciosa and a salmonid. As part of ongoing research on how environmental parameters influence parasite establishment and replication, we designed...
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velocity on the Ceratomyxa shasta infectious cycle
Sarah J. Bjork and Jerri L. Bartholomew
Simulations of past climates require altered
boundary conditions to account for known shifts in the Earth
system. For the Last Glacial Maximum (LGM) and subsequent
deglaciation, the existence of large Northern Hemisphere
ice sheets caused profound changes in surface topography
and albedo. While ice-sheet extent is fairly well
known, numerous...
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Ullman, D. J., LeGrande, A. N., Carlson, A. E., Anslow, F. S., and Licciardi, J. M.:
Assessing the
The reality confronting ecosystem managers today is one of heterogeneous, rapidly transforming landscapes,
particularly in the areas more affected by urban and agricultural development. A landscape management
framework that incorporates all systems, across the spectrum of degrees of alteration, provides a fuller set of
options for how and when to...
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ecosystems
Managing the whole landscape: historical, hybrid, and novel
ecosystems
Hobbs, R. J., Higgs, E
The reality confronting ecosystem managers today is one of heterogeneous, rapidly transforming landscapes,
particularly in the areas more affected by urban and agricultural development. A landscape management
framework that incorporates all systems, across the spectrum of degrees of alteration, provides a fuller set of
options for how and when to...
Full Text:
WebReferences
Andersen T, Carstensen J, Hernandez-Garcıa E, and Duarte CM.
2008. Ecological thresholds and
Seedling recruitment is a critical driver of population dynamics and community assembly, yet we know little about functional traits that define different recruitment strategies. For the first time, we examined whether trait relatedness across germination and seedling stages allows the identification of general recruitment strategies which share core functional attributes...
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. Larson1,6 · Roger L. Sheley2 · Stuart P. Hardegree3 · Paul S. Doescher4 ·
Jeremy J. James5
Received: 22
Understanding the drivers and implications of anthropogenic disturbance of ecological connectivity is a key concern for the conservation of biodiversity and 50 ecosystem processes. Here, we review human activities that affect the movements and dispersal of aquatic organisms, including damming of rivers, river regulation, habitat loss and alteration, human-assisted dispersal...
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10
, Timothy J. Page
6
, Cynthia Riginos
11
, Brian Fry
6
, Jane M. Hughes
6
1
Research
Microalgae play an important role in the marine ecosystem. They are primary producers and form the base of the aquatic food web. The effects and changes that occur to microalgae are expected to have influences on the higher tropic levels. One major factor that influences growth of microalgae is the...
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Giovannoni, Committee Member, representing Department of Microbiology
Sascha Hallett, Committee Member
We developed a new climate-sensitive vegetation state-and-transition simulation
model (CV-STSM) to simulate future vegetation at a fine spatial grain commensurate
with the scales of human land-use decisions, and under the joint influences of changing
climate, site productivity, and disturbance. CV-STSM integrates outputs from four different
modeling systems. Successional changes in...
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for local land management
Yospin, G. I., Bridgham, S. D., Neilson, R. P., Bolte, J. P., Bachelet, D
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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the 88-D-9-9 xPoM
northern Great Basin) 91-A-8-3
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