Digital Commons Network^™

Bioe 342.30: Field Ecology, Jack Arthur Stanford

University of Montana Course Syllabi

No abstract provided.

Can Fire Atlas Data Improve Species Distribution Model Projections?, Shawn M. Crimmins, Solomon Z. Dobrowski, Alison R. Mynsberge, Hugh D. Safford

Forest Management Faculty Publications

Correlative species distribution models (SDMs) are widely used in studies of climate change impacts, yet are often criticized for failing to incorporate disturbance processes that can influence species distributions. Here we use two temporally independent data sets of vascular plant distributions, climate data, and fire atlas data to examine the influence of disturbance history on SDM projection accuracy through time in the mountain ranges of California, USA. We used hierarchical partitioning to examine the influence of fire occurrence on the distribution of 144 vascular plant species and built a suite of SDMs to examine how the inclusion of fire-related predictors …

July 2014 News Releases, University Of Montana--Missoula. Office Of University Relations

University of Montana News Releases, 1928, 1956-present

No abstract provided.

Role Of Lysosomes In Silica-Induced Inflammasome Activation And Inflammation In Absence Of Macro, Rupa Biswas, Raymond F. Hamilton, Andrij Holian

Public and Community Health Sciences Faculty Publications

MARCO is the predominant scavenger receptor for recognition and binding of silica particles by alveolar macrophages (AM). Previously, it was shown that mice null for MARCO have a greater inflammatory response to silica, but the mechanism was not described. The aim of this study was to determine the relationship between MARCO and NLRP3 inflammasome activity. Silica increased NLRP3 inflammasome activation and release of the proinflammatory cytokine, IL-1b, to a greater extent in MARCO^-/- AM compared to wild type (WT) AM. Furthermore, in MARCO^-/- AM there was greater cathepsin B release from phagolysosomes, Caspase-1 activation, and acid sphingomyelinase activity …

Rapid Reservoir Erosion, Hyperconcentrated Flow, And Downstream Deposition Triggered By Breaching Of 38 M Tall Condit Dam, White Salmon River, Washington, Andrew C. Wilcox, Jim E. O'Connor, Jon J. Major

Geosciences Faculty Publications

Condit Dam on the White Salmon River,Washington, a 38m high dam impounding a large volume (1.8 million m³) of fine-grained sediment (60% sand, 35% silt and clay, and 5% gravel), was rapidly breached in October 2011. This unique dam decommissioning produced dramatic upstream and downstream geomorphic responses in the hours and weeks following breaching. Blasting a 5 m wide hole into the base of the dam resulted in rapid reservoir drawdown, abruptly releasing ~1.6 million m³ of reservoir water, exposing reservoir sediment to erosion, and triggering mass failures of the thickly accumulated reservoir sediment. Within 90 min …

Evidence Of Climate-Induced Range Contractions In Bull Trout Salvelinus Confluentus In A Rocky Mountain Watersehd, U.S.A., Lisa A. Eby, Olga E. Helmy, Lisa M. Holsinger, Michael K. Young

Wildlife Biology Faculty Publications

Many freshwater fish species are considered vulnerable to stream temperature warming associated with climate change because they are ectothermic, yet there are surprisingly few studies documenting changes in distributions. Streams and rivers in the U.S. Rocky Mountains have been warming for several decades. At the same time these systems have been experiencing an increase in the severity and frequency of wildfires, which often results in habitat changes including increased water temperatures. We resampled 74 sites across a Rocky Mountain watershed 17 to 20 years after initial samples to determine whether there were trends in bull trout occurrence associated with temperature, …

Hstr 352.01: France Revolution 1789-1848, Linda S. Frey

University of Montana Course Syllabi

No abstract provided.

June 2014 News Releases, University Of Montana--Missoula. Office Of University Relations

University of Montana News Releases, 1928, 1956-present

No abstract provided.

Octopamine Neuromodulation Regulates Gr32a-Linked Aggression And Courtship Pathways In Drosophila Males, Jonathan C. Andrews, Maria Paz Fernàndez, Qin Yu, Gregory Patrick Leary, Adelaine K. W. Leung, Michael P. Kavanaugh, Edward A. Kravitz, Sarah J. Certel

Biological Sciences Faculty Publications

Chemosensory pheromonal information regulates aggression and reproduction in many species, but how pheromonal signals are transduced to reliably produce behavior is not well understood. Here we demonstrate that the pheromonal signals detected by Gr32a-expressing chemosensory neurons to enhance male aggression are filtered through octopamine (OA, invertebrate equivalent of norepinephrine) neurons. Using behavioral assays, we find males lacking both octopamine and Gr32a gustatory receptors exhibit parallel delays in the onset of aggression and reductions in aggression. Physiological and anatomical experiments identify Gr32a to octopamine neuron synaptic and functional connections in the suboesophageal ganglion. Refining the Gr32a-expressing population indicates that mouth Gr32a …

Structure Of A Mitochondrial Cytochrome C Conformer Competent For Peroxidase Activity, Levi J. Mcclelland, Tung-Chung Mou, Margaret E. Jeakins-Cooley, Stephen R. Sprang, Bruce E. Bowler

Biological Sciences Faculty Publications

At the onset of apoptosis, the peroxidation of cardiolipin at the inner mitochondrial membrane by cytochrome c requires an open coordination site on the heme. We report a 1.45-Å resolution structure of yeast iso-1-cytochrome c with the Met80 heme ligand swung out of the heme crevice and replaced by a water molecule. This conformational change requires modest adjustments to the main chain of the heme crevice loop and is facilitated by a trimethyllysine 72-to-alanine mutation. This mutation also enhances the peroxidase activity of iso-1-cytochrome c. The structure shows a buried water channel capable of facilitating peroxide access to the active …

May 2014 News Releases, University Of Montana--Missoula. Office Of University Relations

University of Montana News Releases, 1928, 1956-present

No abstract provided.

Montana Kaimin, April 30, 2014, Students Of The University Of Montana, Missoula

Montana Kaimin, 1898-present

Student newspaper of the University of Montana, Missoula.

Montana Kaimin, April 29, 2014, Students Of The University Of Montana, Missoula

Montana Kaimin, 1898-present

Student newspaper of the University of Montana, Missoula.

The Effects Of Size On Ag Nanosphere Toxicity In Macrophage Cell Models And Lung Epithelial Cell Lines Is Dependent On Particle Dissolution, Raymond F. Hamilton, Sarah Buckingham, Andrij Holian

Public and Community Health Sciences Faculty Publications

Silver (Ag) nanomaterials are increasingly used in a variety of commercial applications. This study examined the effect of size (20 and 110 nm) and surface stabilization (citrate and PVP coatings) on toxicity, particle uptake and NLRP3 inflammasome activation in a variety of macrophage and epithelial cell lines. The results indicated that smaller Ag (20 nm), regardless of coating, were more toxic in both cell types and most active in the THP-1 macrophages. TEM imaging demonstrated that 20 nm Ag nanospheres dissolved more rapidly than 110 nm Ag nanospheres in acidic phagolysosomes consistent with Ag ion mediated toxicity. In addition, there …

The Effect Of Size On Ag Nanosphere Toxicity In Macrophage Cell Models And Lung Epithelial Cell Lines Is Dependent On Particle Dissolution, Raymond F. Hamilton, Sarah Buckingham, Andrij Holian

Biomedical and Pharmaceutical Sciences Faculty Publications

Silver (Ag) nanomaterials are increasingly used in a variety of commercial applications. This study examined the effect of size (20 and 110 nm) and surface stabilization (citrate and PVP coatings) on toxicity, particle uptake and NLRP3 inflammasome activation in a variety of macrophage and epithelial cell lines. The results indicated that smaller Ag (20 nm), regardless of coating, were more toxic in both cell types and most active in the THP-1 macrophages. TEM imaging demonstrated that 20 nm Ag nanospheres dissolved more rapidly than 110 nm Ag nanospheres in acidic phagolysosomes consistent with Ag ion mediated toxicity. In addition, there …

Local Spatial Structure Of Forest Biomass And Its Consequences For Remote Sensing Of Carbon Stocks, M. Rejou-Mechain, H. C. Muller-Landau, M. Detto, S. C. Thomas, T. Le Toan, S. S. Saatchi, J. S. Barreto-Silvia, N. A. Bourg, S. Bunyavejchewin, N. Butt, W. Y. Brockelman, M. Cao, D. Cardenas, J.-M. Chiang, G. B. Chuyong, K. Clay, R. Condit, H. S. Dattaraja, S. J. Davies, A. Duque, S. Esufali, C. Ewango, R.H.S. Fernando, C. D. Fletcher, I.A.U.N. Gunatilleke, Z. Hao, K. E. Harms, T. B. Hart, B. Herault, R. W. Howe, S. P. Hubbell, D. J. Johnson, D. Kenfack, A. J. Larson, L. Lin, Y. Lin, J. A. Lutz, J.-R. Makana, Y. Malhi, T. R. Marthews, R. W. Mcewan, S. M. Mcmahon, W. J. Mcshea, R. Muscarella, A. Nathalang, N.S.M. Noor, C. J. Nytch, A. A. Oliveira, R. P. Phillips, N. Pongpattananurak, R. Punchi-Manage, R. Salim, J. Schurman, R. Sukumar, H. S. Suresh, U. Suwanvecho, D. W. Thomas, J. Thompson, M. Uriarte, R. Valencia, A. Vicentini, A. T. Wolf, S. Yap, Z. Yuan, C. E. Zartman, J. K. Zimmerman, J. Chave

Forest Management Faculty Publications

Advances in forest carbon mapping have the potential to greatly reduce uncertainties in the global carbon budget and to facilitate effective emissions mitigation strategies such as REDD+. Though broad scale mapping is based primarily on remote sensing data, the accuracy of resulting forest carbon stock estimates depends critically on the quality of field measurements and calibration procedures. The mismatch in spatial scales between field inventory plots and larger pixels of current and planned remote sensing products for forest biomass mapping is of particular concern, as it has the potential to introduce errors, especially if forest biomass shows strong local spatial …

Montana Kaimin, April 18, 2014, Students Of The University Of Montana, Missoula

Montana Kaimin, 1898-present

Student newspaper of the University of Montana, Missoula.

Documents From The April 16, 2014 Meeting Of The Associated Students Of The University Of Montana (Asum), University Of Montana--Missoula. Associated Students

Senate Meeting Agendas and Minutes, 2007-Present

Agenda, roll call, and meeting minutes from the April 16, 2014 meeting of the Associated Students of the University of Montana (ASUM). The following resolutions were discussed during the meeting:

SB84-13/14: Legalization of Cannabis
SB85-13/14: Projectors
SB86-13/14: Senator Credit Hours
SB87-13/14:Marketing and Outreach Director
SB88-13/14: ASUM Continuity
SB89-13/14: Fee Transparency
SB90-13/14: Missoula College Representation
SB91-13/14: Graduate Student Representation
SB92-13/14: Foresters' Ball
SB93-13/14: Senate Representation
SB95-13/14: Amending Personnel Policy
SB96-13/14: Library Budget Cuts
SB97-13/14: Library Legislative Funding

Factors Affecting Whale Detection In A Highly Used Marine Environment, Sara Williams, Scott M. Gende, Paul M. Lukacs

UM Graduate Student Research Conference (GradCon)

No abstract provided.

Balancing Efficiency And Compassion: Researching Best Practices For Homeless Shelter Policy Manuals, Ally Guldborg

University of Montana Conference on Undergraduate Research (UMCUR)

The purpose of this project is to use qualitative content analysis to help improve the policies and practices of the Poverello Center. The Poverello Center acts as an emergency shelter and food bank for persons experiencing hunger or homelessness in the Missoula area. The Poverello Center aims to balance efficiency and compassion as it provides these services to all who need them. In order to meet this goal, the organization must have clear and enforceable policies for staff, volunteers, and clients. The researcher will work in collaboration with the staff and administration of the Poverello Center to examine the organization’s …

The Origin Of Novel Morphologies: A Case Study Of A Rhinoceros Beetle, Dylan Gomes

University of Montana Conference on Undergraduate Research (UMCUR)

The origin of novel morphological structures has mystified biologists for centuries. These often-impressive structures appear to spring into existence, without passing through any intermediate forms. An exciting recent discovery in evolutionary biology is that some novel morphologies evolve via co-option of existing gene networks. When these ancient networks are deployed in new locations novel structures can result.

Rhinoceros beetle horns are impressive novel morphologies; some horns are longer than their bearer’s body. There is evidence that dung beetles, another group of horn-bearing beetles, have co-opted the insect appendage patterning pathway (APP) for horn development. Dung beetles diverged from rhinoceros beetles …

Umcur 2014 Program Pdf

University of Montana Conference on Undergraduate Research (UMCUR)

The original program includes the general schedule as well as individual poster and presentation schedules and abstracts.

Montana Kaimin, April 11, 2014, Students Of The University Of Montana, Missoula

Montana Kaimin, 1898-present

Student newspaper of the University of Montana, Missoula.

A Satellite Data Driven Biophysical Modeling Approach For Estimating Northern Peatland And Tundra Co2 And Ch4 Fluxes, J. D. Watts, John S. Kimball, F. J. W. Parmentier, T. Sachs, J. Rinne, D. Zona, W. Oechel, T. Tagesson, M. Jackowicz-Korczynski, M. Aurela

Biological Sciences Faculty Publications

The northern terrestrial net ecosystem carbon balance (NECB) is contingent on inputs from vegetation gross primary productivity (GPP) to offset the ecosystem respiration (Reco) of carbon dioxide (CO₂) and methane (CH₄) emissions, but an effective framework to monitor the regional Arctic NECB is lacking. We modified a terrestrial carbon flux (TCF) model developed for satellite remote sensing applications to evaluate wetland CO₂ and CH₄ fluxes over pan-Arctic eddy covariance (EC) flux tower sites. The TCF model estimates GPP, CO2 and CH4 emissions using in situ or remote sensing and reanalysis-based climate data as inputs. …

Montana Kaimin, April 8, 2014, Students Of The University Of Montana, Missoula

Montana Kaimin, 1898-present

Student newspaper of the University of Montana, Missoula.

Wildearth Guardians V. Jewell, 738 F.3d 298 (D.C. Cir. 2013), Ross Keogh

Public Land & Resources Law Review

As part of a comprehensive strategy to keep coal “in the ground,” environmental plaintiffs challenged the BLM’s leasing of federally owned coal tracts in the Powder River Basin in 2010 on climate change grounds. WildEarth Guardians was the first suit to reach a federal circuit court, where the District of Columbia Circuit Court affirmed that the BLM’s environmental analysis of the climate change impacts of the leased coal was adequate under NEPA. Notably, in reversing the district court, the circuit court found that the plaintiffs had procedural standing.

Inactivation Of Genes For Antigenic Variation In The Relapsing Fever Spirochete Borrelia Hermsii Reduces Infectivity In Mice And Transmission By Ticks, Sandra J. Raffel, James M. Battisti, Robert J. Fischer, Tom G. Schwan

Biological Sciences Faculty Publications

Borrelia hermsii, a causative agent of relapsing fever of humans in western North America, is maintained in enzootic cycles that include small mammals and the tick vector Ornithodoros hermsi. In mammals, the spirochetes repeatedly evade the host’s acquired immune response by undergoing antigenic variation of the variable major proteins (Vmps) produced on their outer surface. This mechanism prolongs spirochete circulation in blood, which increases the potential for acquisition by fast-feeding ticks and therefore perpetuation of the spirochete in nature. Antigenic variation also underlies the relapsing disease observed when humans are infected. However, most spirochetes switch off the bloodstream …

Flying Cat, Sarah Vallance

CutBank

No abstract provided.

There Is A Life, Devon Taylor

CutBank

No abstract provided.

Open Season, Becca Klaver

CutBank

No abstract provided.