Describing the mechanisms that drive variation in species interaction strengths is central to understanding, predicting, and managing community dynamics. Multiple factors have been linked to trophic interaction strength variation, including species densities, species traits, and abiotic factors. Yet most empirical tests of the relative roles of multiple mechanisms that drive...
Surface water and groundwater interactions are a key component in the functioning of stream ecosystems. Exchange of water between the stream and the hyporheic zone creates habitat for aquatic organisms and serves as a control for stream biogeochemical, thermal, and flow processes. This study takes a multi-method field-based approach to...
This dissertation explores the engineering of carbon nanotube electronic devices using atomic force microscopy (AFM) based techniques. A possible application for such devices is an electronic interface with individual biological molecules. This single molecule biosensing application is explored both experimentally and with computational modeling.
Scanning probe microscopy techniques, such as...
Velocity measurements from drifter GPS records are assimilated and used in an ensemble-based inversion technique to extract the river bathymetry. The method is tested on a deep meandering reach and a shallow braided reach of the Kootenai River in Idaho, USA. The Regional Ocean Modeling System (ROMS) is used to...
The induction of drug-metabolizing enzymes is a
complex biochemical process manifested not only by
increases in various cytochrome P-450 isozymes and
related activities, but also by alterations in
endoplasmic reticulum membranes. Little work has been
done to examine how cytochrome P-450 inducing agents
influence other cellular processes, such as
phospholipid...
Despite the importance of habitat in determining species distribution and persistence, habitat dynamics are rarely modeled in studies of metapopulations. We used an integrated habitat-occupancy model to simultaneously quantify habitat change, site fidelity, and local colonization and extinction rates for larvae of a suite of Great Plains stream fishes in...
Velocity measurements from drifter GPS records are used in an ensemble-based data assimilation technique to extract the river bathymetry. The method is tested on a deep meandering reach and a shallow braided reach of the Kootenai River in Idaho. The Regional Ocean Modeling System (ROMS) is used to model numerous...
Processes that influence habitat selection in landscapes involve the interaction of habitat composition and configuration
and are particularly important for species with complex life cycles. We assessed the relative influence of landscape spatial
processes and local habitat characteristics on patterns in the distribution and abundance of spawning steelhead
(Oncorhynchus mykiss),...
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(Oncorhynchus mykiss)
across a Complex Riverscape
Falke JA, Dunham JB, Jordan CE, McNyset KM, Reeves GH (2013
Linked atmospheric and wildfire changes will complicate future management of native coldwater fishes in fire-prone
landscapes, and new approaches to management that incorporate uncertainty are needed to address this challenge. We used a
Bayesian network (BN) approach to evaluate population vulnerability of bull trout (Salvelinus confluentus) in the Wenatchee River...
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status quo (SQ) and
three climate scenarios: P, low warming; C, moderate warming;
M, high warming.
Falke
Linked atmospheric and wildfire changes will complicate future management of native coldwater fishes in fire-prone
landscapes, and new approaches to management that incorporate uncertainty are needed to address this challenge. We used a
Bayesian network (BN) approach to evaluate population vulnerability of bull trout (Salvelinus confluentus) in the Wenatchee River...
Full Text:
:
𝑃(𝜓 |𝑥,𝛽0,𝛽1) =
1
1 + 𝑒−(𝛽0+𝛽1𝑥)
We verified that parameter estimates and errors