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Curriculum Subcommittee Agenda, April 5, 2018, Utah State University Apr 2018

Curriculum Subcommittee Agenda, April 5, 2018, Utah State University

Educational Policies Committee

Program Proposal

  • Restructuring Biology PhD and Biology-Ecology PhD
  • Changing specialization name of “Value Creation” to Strategic Value Creation
  • Changing the Management Minor to Leadership and Management Minor
  • Changing the name from MBA specialization: Shingo Leadership and Operational Excellence/Manufacturing Management to Supply Chain Management

Semester Course Approval Reviews

Other

  • Election of Chair
  • High Impact Practices (HIPs)
  • R401 Proposal Process


Second Order Fully Discrete Energy Stable Methods On Staggered Grids For Hydrodynamic Phase Field Models Of Binary Viscous Fluids, Yuezheng Gong, Jia Zhao, Qi Wang Apr 2018

Second Order Fully Discrete Energy Stable Methods On Staggered Grids For Hydrodynamic Phase Field Models Of Binary Viscous Fluids, Yuezheng Gong, Jia Zhao, Qi Wang

Mathematics and Statistics Faculty Publications

We present second order, fully discrete, energy stable methods on spatially staggered grids for a hydrodynamic phase field model of binary viscous fluid mixtures in a confined geometry subject to both physical and periodic boundary conditions. We apply the energy quadratization strategy to develop a linear-implicit scheme. We then extend it to a decoupled, linear scheme by introducing an intermediate velocity term so that the phase variable, velocity field, and pressure can be solved sequentially. The two new, fully discrete linear schemes are then shown to be unconditionally energy stable, and the linear systems resulting from the schemes are proved …


Routes Of Pesticide Exposure In Solitary, Cavity-Nesting Bees, Andi M. Kopit, Theresa L. Pitts-Singer Apr 2018

Routes Of Pesticide Exposure In Solitary, Cavity-Nesting Bees, Andi M. Kopit, Theresa L. Pitts-Singer

Biology Faculty Publications

Declines of pollinator health and their populations continue to be commercial and ecological concerns. Agricultural practices, such as the use of agrochemicals, are among factors attributed to honey bee (Apis mellifera L. (Hymenoptera: Apidae)) population losses and are also known to have negative effects on populations of managed non-Apis pollinators. Although pesticide registration routinely requires evaluation of impacts on honey bees, studies of this social species may not reveal important pesticide exposure routes where managed, solitary bees are commonly used. Studies of solitary bees offer additional bee models that are practical from the aspect of availability, known rearing …


The Natural Variance Of The Arabidopsis Floral Secondary Metabolome, Takayuki Tohge, Monica Borghi, Alisdair R. Fernie Apr 2018

The Natural Variance Of The Arabidopsis Floral Secondary Metabolome, Takayuki Tohge, Monica Borghi, Alisdair R. Fernie

Biology Faculty Publications

Application of mass spectrometry-based metabolomics enables the detection of genotype-related natural variance in metabolism. Differences in secondary metabolite composition of flowers of 64 Arabidopsis thaliana (Arabidopsis) natural accessions, representing a considerable portion of the natural variation in this species are presented. The raw metabolomic data of the accessions and reference extracts derived from flavonoid knockout mutants have been deposited in the MetaboLights database. Additionally, summary tables of floral secondary metabolite data are presented in this article to enable efficient re-use of the dataset either in metabolomics cross-study comparisons or correlation-based integrative analysis of other metabolomic and phenotypic features such as …


Hanging By A Thread: Why Bent Fibers Hold More Water | College Of Engineering, Usu College Of Engineering Apr 2018

Hanging By A Thread: Why Bent Fibers Hold More Water | College Of Engineering, Usu College Of Engineering

College of Engineering News

On your next stroll through the woods, take a look at the dew droplets hanging from the leaves.


Magnetic Properties Of Acenes And Their O-Quinone Derivatives: Computer Simulation, A. A. Starikova, A. G. Starikov, R. M. Minyaev, Alexander I. Boldyrev, V. I. Minkin Apr 2018

Magnetic Properties Of Acenes And Their O-Quinone Derivatives: Computer Simulation, A. A. Starikova, A. G. Starikov, R. M. Minyaev, Alexander I. Boldyrev, V. I. Minkin

Chemistry and Biochemistry Faculty Publications

Quantum chemical study (DFT UB3LYP/6-311++G(d,p)) of the structure and properties of acenes functionalized with two o-benzoquinone groups and their complexes with sodium cations has been performed. An increase in the number of fused rings has been shown to result in the stabilization of biradicaloid state of acenes and the switching of the character of exchange interactions between redox-active moieties from antiferromagnetic to ferromagnetic. The obtained results allow one to consider o-quinone acene derivatives as a basis for designing magnetoactive compounds.


Responses Of Marigold Cultivars To Saline Water Irrigation, Youping Sun, Genhua Niu, Christina Perez, H. Brent Pemberton, James Altland Apr 2018

Responses Of Marigold Cultivars To Saline Water Irrigation, Youping Sun, Genhua Niu, Christina Perez, H. Brent Pemberton, James Altland

Plants, Soils, and Climate Faculty Publications

Marigolds (Tagetes sp.) are ornamental plants with fine-textured, dark green foliage, and yellow, orange, or bicolored flowers. The relative salt tolerance of eight marigolds [‘Discovery Orange’, ‘Discovery Yellow’, ‘Taishan Gold’, ‘Taishan Orange’, and ‘Taishan Yellow’ African marigold (Tagetes erecta); ‘Hot Pak Gold’, ‘Hot Pak Orange’, and ‘Hot Pak Yellow’ French marigold (Tagetes patula)] was evaluated in a greenhouse experiment. Plants were irrigated weekly with nutrient solution at an electrical conductivity (EC) of 1.2 dS·m−1 (control) or saline solutions at an EC of 3.0 or 6.0 dS·m−1 (EC 3 or EC 6). Marigold plants …


Utah State Magazine, Spring 2018, Utah State University Apr 2018

Utah State Magazine, Spring 2018, Utah State University

Utah State Magazine

The quarterly magazine for friends and alumni of Utah State University.


Marginalia No. 40, Merrill-Cazier Library, Utah State University Apr 2018

Marginalia No. 40, Merrill-Cazier Library, Utah State University

Marginalia

  • Dear Library Friends, Page 2
  • Jeanne Davidson, Page 3
  • After Years of Planning and Development, Page 4
  • Farm Girl Librarian, Page 5
  • Founders Day Reception, Page 6
  • Virtual Reality at the Library, Page 8
  • DigitalCommons@USU, Page 9
  • Arrington Writing Awards, Page 11


Rethinking Behavior - Spring 2018, Midwest Symposium For Leadership In Behavior Disorders Apr 2018

Rethinking Behavior - Spring 2018, Midwest Symposium For Leadership In Behavior Disorders

ReThinking Behavior Magazine

A magazine for professionals serving children and youth with behavioral needs.

Spring 2018, Volume 1, Issue 3


Stress Vs. Anxiety: Understanding The Difference, Jennifer Viveros, David G. Schramm Apr 2018

Stress Vs. Anxiety: Understanding The Difference, Jennifer Viveros, David G. Schramm

All Current Publications

This fact sheet outlines the differences between normal day-to-day stress and persistent anxiety, and how to deal with them both.


Herbivory And Eutrophication Mediate Grassland Plant Nutrient Responses Across A Global Climatic Gradient, T. Michael Anderson, Daniel M. Griffith, James B. Grace, Eric M. Lind, Peter B. Adler, Lori A. Biederman, Dana M. Blumenthal, Pedro Daleo, Jennifer Firn, Nicole Hagenah, W. Stanley Harpole, Andrew S. Macdougall, Rebecca L. Mcculley, Suzanne M. Prober, Anita C. Risch, Mahesh Sankaran, Martin Schütz, Eric W. Seabloom, Carly J. Stevens, Lauren L. Sullivan, Peter D. Wragg, Elizabeth T. Borer Mar 2018

Herbivory And Eutrophication Mediate Grassland Plant Nutrient Responses Across A Global Climatic Gradient, T. Michael Anderson, Daniel M. Griffith, James B. Grace, Eric M. Lind, Peter B. Adler, Lori A. Biederman, Dana M. Blumenthal, Pedro Daleo, Jennifer Firn, Nicole Hagenah, W. Stanley Harpole, Andrew S. Macdougall, Rebecca L. Mcculley, Suzanne M. Prober, Anita C. Risch, Mahesh Sankaran, Martin Schütz, Eric W. Seabloom, Carly J. Stevens, Lauren L. Sullivan, Peter D. Wragg, Elizabeth T. Borer

Ecology Center Publications

Plant stoichiometry, the relative concentration of elements, is a key regulator of ecosystem functioning and is also being altered by human activities. In this paper we sought to understand the global drivers of plant stoichiometry and compare the relative contribution of climatic vs. anthropogenic effects. We addressed this goal by measuring plant elemental (C, N, P and K) responses to eutrophication and vertebrate herbivore exclusion at eighteen sites on six continents. Across sites, climate and atmospheric N deposition emerged as strong predictors of plot‐level tissue nutrients, mediated by biomass and plant chemistry. Within sites, fertilization increased total plant nutrient pools, …


Integrated Analysis Of Flow, Form, And Function For River Management And Design Testing, Belize A. Lane, Gregory B. Pasternack, Samuel Sandoval-Solis Mar 2018

Integrated Analysis Of Flow, Form, And Function For River Management And Design Testing, Belize A. Lane, Gregory B. Pasternack, Samuel Sandoval-Solis

Civil and Environmental Engineering Faculty Publications

The extent and timing of many river ecosystem functions is controlled by the interplay of streamflow dynamics with the river corridor shape and structure. However, most river management studies evaluate the role of either flow or form without regard to their dynamic interactions. This study develops an integrated modelling approach to assess changes in ecosystem functions resulting from different river flow and form configurations. Moreover, it investigates the role of temporal variability in such flow–form–function trade‐offs. The use of synthetic, archetypal channel forms in lieu of high‐resolution topographic data reduces time and financial requirements, overcomes site‐specific topographic features, and allows …


Functional Biogeography Of Angiosperms: Life At The Extremes, Amy E. Zanne, William D. Pearse, William K. Cornwell, Daniel J. Mcglinn, Ian J. Wright, Josef C. Uyeda Mar 2018

Functional Biogeography Of Angiosperms: Life At The Extremes, Amy E. Zanne, William D. Pearse, William K. Cornwell, Daniel J. Mcglinn, Ian J. Wright, Josef C. Uyeda

Ecology Center Publications

Nonlinear relationships between species and their environments are believed common in ecology and evolution, including during angiosperms' rise to dominance. Early angiosperms are thought of as woody evergreens restricted to warm, wet habitats. They have since expanded into numerous cold and dry places. This expansion may have included transitions across important environmental thresholds. To understand linear and nonlinear relationships between angiosperm structure and biogeographic distributions, we integrated large datasets of growth habits, conduit sizes, leaf phenologies, evolutionary histories, and environmental limits. We consider current-day patterns and develop a new evolutionary model to investigate processes that created them. The macroecological pattern …


Introducing And Evaluating A Knowledge Transfer Approach To Support Problem Solving In And Around Protected Areas, Brady J. Mattsson, Marie Fischborn, Mark W. Brunson, Harald Vacik Mar 2018

Introducing And Evaluating A Knowledge Transfer Approach To Support Problem Solving In And Around Protected Areas, Brady J. Mattsson, Marie Fischborn, Mark W. Brunson, Harald Vacik

Environment and Society Faculty Publications

Protected areas (PAs) can generate many benefits inside and outside their borders, and achieving objectives for diverse stakeholders raises many challenges. There are many examples of successful PA management around the globe, although a systematic and comprehensive approach to developing and sharing these solutions has been lacking. We present “solutioning” as a structured process of peer-learning, which can inform management strategies in and around protected areas. We explain how the PANORAMA—Solutions for a Healthy Planet initiative has put solutioning into practice through an interactive community and web portal to learn about protected area solutions around the globe. Unlike other web …


Mxin Differentially Regulates Monomeric And Oligomeric Species Of The Shigella Type Three Secretion System Atpase Spa47, Heather B. Case, Nicholas E. Dickenson Mar 2018

Mxin Differentially Regulates Monomeric And Oligomeric Species Of The Shigella Type Three Secretion System Atpase Spa47, Heather B. Case, Nicholas E. Dickenson

Chemistry and Biochemistry Faculty Publications

Shigella rely entirely on the action of a single type three secretion system (T3SS) to support cellular invasion of colonic epithelial cells and to circumvent host immune responses. The ATPase Spa47 resides at the base of the Shigella needle-like type three secretion apparatus (T3SA), supporting protein secretion through the apparatus and providing a likely means for native virulence regulation by Shigella and a much needed target for non-antibiotic therapeutics to treat Shigella infections. Here, we show that MxiN is a differential regulator of Spa47 and that its regulatory impact is determined by the oligomeric state of the Spa47 ATPase, with …


Herbivore Removal Reduces Influence Of Arbuscular Mycorrhizal Fungi On Plant Growth And Tolerance In An East African Savanna, Jonathan B. González, Renee H. Petipas, Oscar Franken, E. Toby Kiers, Kari E. Veblen, Alison K. Brody Mar 2018

Herbivore Removal Reduces Influence Of Arbuscular Mycorrhizal Fungi On Plant Growth And Tolerance In An East African Savanna, Jonathan B. González, Renee H. Petipas, Oscar Franken, E. Toby Kiers, Kari E. Veblen, Alison K. Brody

Wildland Resources Faculty Publications

The functional relationship between arbuscular mycorrhizal fungi (AMF) and their hosts is variable on small spatial scales. Here, we hypothesized that herbivore exclusion changes the AMF community and alters the ability of AMF to enhance plant tolerance to grazing. We grew the perennial bunchgrass, Themeda triandra Forssk in inoculum from soils collected in the Kenya Long-term Exclosure Experiment where treatments representing different levels of herbivory have been in place since 1995. We assessed AMF diversity in the field, using terminal restriction fragment length polymorphism and compared fungal diversity among treatments. We conducted clipping experiments in the greenhouse and field and …


Halogen, Chalcogen, And Pnicogen Bonding Involving Hypervalent Atoms, Steve Scheiner, Jia Lu Mar 2018

Halogen, Chalcogen, And Pnicogen Bonding Involving Hypervalent Atoms, Steve Scheiner, Jia Lu

Chemistry and Biochemistry Faculty Publications

The additional substituents arising from hypervalency present a number of complicating issues for the formation of noncovalent bonds. The XF5 molecule (X=Cl, Br, I) was allowed to form a halogen bond with NH3 as base. Hypervalent chalcogen bonding is examined by way of YF4 and YF6 (Y=S, Se, Te), and ZF5 (Z=P, As, Sb) is used to model pnicogen bonding. Pnicogen bonds are particularly strong, with interaction energies approaching 50 kcal/mol, and also involve wholesale rearrangement from trigonal bipyramidal in the monomer to square pyramidal in the complex, subject to a large deformation energy. YF4 chalcogen bonding is also strong, …


Feasible Conversion Degree Of Dryland To Paddy Field In Jinxian County, Jiangxi Province, China, Dun Yu, R. D. Ramsey, Xiao-Min Zhao, Yong-Qi Fu, Cong-Kang Sun Mar 2018

Feasible Conversion Degree Of Dryland To Paddy Field In Jinxian County, Jiangxi Province, China, Dun Yu, R. D. Ramsey, Xiao-Min Zhao, Yong-Qi Fu, Cong-Kang Sun

Wildland Resources Faculty Publications

The purpose of this paper was to evaluate the feasibility of conversion from dryland to paddy field in Jinxian County under the water resources constraint and dryland suitability condition. We constructed a water resources balance model to evaluate irrigation needs and a dryland suitability model that coupled various spatial data layers. Our research showed that under the water resources constraint, the amount of conversion from dryland to paddy field was 26,971.69 ha and the feasible conversion degree of dryland to paddy field was 0.84, while under the dryland suitability condition, it was 23,262.74 ha and 0.72, respectively. According to the …


Cell Death As A Trigger For Morphogenesis, Boris Aguilar, Ahmadreza Ghaffarizadeh, Christopher D. Johnson, Gregory J. Podgorski, Ilya Shmulevich, Nicholas S. Flann Mar 2018

Cell Death As A Trigger For Morphogenesis, Boris Aguilar, Ahmadreza Ghaffarizadeh, Christopher D. Johnson, Gregory J. Podgorski, Ilya Shmulevich, Nicholas S. Flann

Center for Integrated Biosystems Publications

The complex morphologies observed in many biofilms play a critical role in the survival of these microbial communities. Recently, the formation of wrinkles has been the focus of many studies aimed at finding fundamental information on morphogenesis during development. While the underlying genetic mechanisms of wrinkling are not well-understood, recent discoveries have led to the counterintuitive idea that wrinkle formation is triggered by localized cell death. This work examines the hypothesis that the material properties of a biofilm both power and control wrinkle formation within biofilms in response to localized cell death. Using an agent-based model and a high-performance platform …


Functional Trait Differences Between Native Bunchgrasses And The Invasive Grass Bromus Tectorum, Huiqin H.E., Thomas A. Monaco, Thomas A. Jones Mar 2018

Functional Trait Differences Between Native Bunchgrasses And The Invasive Grass Bromus Tectorum, Huiqin H.E., Thomas A. Monaco, Thomas A. Jones

Forage and Range Research Laboratory Publications

We conducted 30- and 60-d greenhouse experiments to compare functional traits of Bromus tectorum (invasive annual grass) and four perennial bunchgrasses under well-watered or drought conditions. Even under drought, B. tectorum experienced significantly less stress (i.e., higher xylem pressure potential and greater shoot water content, water use per day and water-use efficiency) and biomass production than the perennial grasses after 30 d. However, after 60 d, its superiority was reduced under infrequent watering. Differences among perennial grasses were more pronounced for physiological traits under infrequent watering and for morphological traits under frequent watering. Elymus multisetus (fastgrowing species) had a higher …


Salvinia Radseq, Carol A. Rowe, Donald Hauber, Paul G. Wolf Mar 2018

Salvinia Radseq, Carol A. Rowe, Donald Hauber, Paul G. Wolf

Browse all Datasets

No abstract provided.


3d Tissue Engineering, An Emerging Technique For Pharmaceutical Research, Gregory Jensen, Christian Morrill, Yu Huang Mar 2018

3d Tissue Engineering, An Emerging Technique For Pharmaceutical Research, Gregory Jensen, Christian Morrill, Yu Huang

Biological Engineering Faculty Publications

Tissue engineering and the tissue engineering model have shown promise in improving methods of drug delivery, drug action, and drug discovery in pharmaceutical research for the attenuation of the central nervous system inflammatory response. Such inflammation contributes to the lack of regenerative ability of neural cells, as well as the temporary and permanent loss of function associated with neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, and traumatic brain injury. This review is focused specifically on the recent advances in the tissue engineering model made by altering scaffold biophysical and biochemical properties for use in the treatment of neurodegenerative diseases. …


A Biogeographic Perspective On The Evolution Of Fire Syndromes In Pine Trees (Pinus: Pinaceae), Kevin J. Badik, Joshua P. Jahner, Joseph S. Wilson Mar 2018

A Biogeographic Perspective On The Evolution Of Fire Syndromes In Pine Trees (Pinus: Pinaceae), Kevin J. Badik, Joshua P. Jahner, Joseph S. Wilson

Biology Faculty Publications

Our goals were to explore the relationship between biogeography and the evolution of fire-adaptive syndromes in the genus Pinus. We used a previously published time-calibrated phylogeny and conducted ancestral trait reconstruction to estimate the likely timing of diversification in Pinus, and to determine when fire-adaptive syndromes evolved in the lineage. To explore trait conservation among fire syndromes and to investigate historical biogeography, we constructed ancestral state reconstructions using the program RASP and estimated the degree of conservatism for fire-adapted traits in the program BaTS. Our reconstructions suggest that the Bering land bridge, which connected North America and Asia, probably played …


Influence Of Harvest Date On Seed Yield And Quality In Forage Kochia, Cody F. Creech, Blair L. Waldron, Corey V. Ransom, Dale R. Zobell, Joseph Earl Creech Mar 2018

Influence Of Harvest Date On Seed Yield And Quality In Forage Kochia, Cody F. Creech, Blair L. Waldron, Corey V. Ransom, Dale R. Zobell, Joseph Earl Creech

Plants, Soils, and Climate Faculty Publications

Forage kochia (Bassia prostrata) is used for rangeland reclamation and livestock and wildlife forage, but limited research has been conducted on its seed production. Therefore, this research evaluated the effect of harvest date on seed weight, germination, and seed yield of forage kochia subspecies virescens and grisea. Seed was harvested from individual plants for 3 years during October, November, and December. October harvest had the lightest 100-seed weights, with the November harvest slightly heavier than December, for most accessions. Cultivar Snowstorm and breeding line Sahsel, both subsp. grisea, had the greatest 100-seed weights in November, 155 …


Relationships Between Cattle And Biodiversity In Multiuse Landscape Revealed By Kenya Long-Term Exclosure Experiment, Truman P. Young, Lauren M. Porensky, Corinna Riginos, Kari E. Veblen, Wilfred O. Odadi, Duncan M. Kimuyu, Grace K. Charles, Hillary S. Young Mar 2018

Relationships Between Cattle And Biodiversity In Multiuse Landscape Revealed By Kenya Long-Term Exclosure Experiment, Truman P. Young, Lauren M. Porensky, Corinna Riginos, Kari E. Veblen, Wilfred O. Odadi, Duncan M. Kimuyu, Grace K. Charles, Hillary S. Young

Wildland Resources Faculty Publications

On rangelands worldwide, cattle interact with many forms of biodiversity, most obviously with vegetation and other large herbivores. Since 1995, we have been manipulating the presence of cattle, mesoherbivores, and megaherbivores (elephants and giraffes) in a series of eighteen 4-ha (10-acre) plots at the Kenya Long-term Exclosure Experiment. We recently (2013) crossed these treatments with small-scale controlled burns. These replicated experimental treatments simulate different land management practices. We seek to disentangle the complex relationships between livestock and biodiversity in a biome where worldwide, uneasy coexistence is the norm. Here, we synthesize more than 20 yr of data to address three …


General Education Subcommittee Minutes, March 20, 2018, Utah State University Mar 2018

General Education Subcommittee Minutes, March 20, 2018, Utah State University

Educational Policies Committee

Course Approvals/Removals/Syllabi Approvals

Business

  • Depth Courses and Categorization of Majors
  • Departments submitting General Education proposals from outside of their General Education categorization
  • Curriculog shutdown


Congratulation A-Pin Recipients | College Of Engineering, Usu College Of Engineering Mar 2018

Congratulation A-Pin Recipients | College Of Engineering, Usu College Of Engineering

College of Engineering News

Interim College of Engineering Dean Dr. Jagath Kaluarachchi and department heads from across the College of Engineering on Thursday recognized sixteen students for receiving the prestigious A-Pin award.


Electron Injection From A Carboxylic Anchoring Dye To Tio2 Nanoparticles In Aprotic Solvents, Hui Fang, Yuhao Wu, Danielle L. Kuhn, Brendan G. Delacy, Yi Rao, Hai-Lung Dai Mar 2018

Electron Injection From A Carboxylic Anchoring Dye To Tio2 Nanoparticles In Aprotic Solvents, Hui Fang, Yuhao Wu, Danielle L. Kuhn, Brendan G. Delacy, Yi Rao, Hai-Lung Dai

Chemistry and Biochemistry Faculty Publications

Injection of photoexcited electrons in the para-Ethyl Red dye to TiO2 nanoparticles (Anatase, 40 nm diameter) is characterized by transient absorption on ultrafast time scales. This study focuses on understanding the effect of aprotic solvents on the injection rate. Transient absorption at 1900 cm−1 is probed following a 400 nm pulse which excites the electronic transition of p-ER adsorbed on TiO2 through its carboxylic group. Measurements conducted in three different solvents show that electron injection lifetimes are in the 250–300 fs range but display a trend in correlation with solvent polarity: the electron injection lifetime is the …


Alluvial Substrate Mapping By Automated Texture Segmentation Of Recreational-Grade Side Scan Sonar Imagery, Daniel Hamill, Daniel Buscombe, Joseph Michael Wheaton Mar 2018

Alluvial Substrate Mapping By Automated Texture Segmentation Of Recreational-Grade Side Scan Sonar Imagery, Daniel Hamill, Daniel Buscombe, Joseph Michael Wheaton

Watershed Sciences Faculty Publications

Side scan sonar in low-cost ‘fishfinder’ systems has become popular in aquatic ecology and sedimentology for imaging submerged riverbed sediment at coverages and resolutions sufficient to relate bed texture to grain-size. Traditional methods to map bed texture (i.e. physical samples) are relatively high-cost and low spatial coverage compared to sonar, which can continuously image several kilometers of channel in a few hours. Towards a goal of automating the classification of bed habitat features, we investigate relationships between substrates and statistical descriptors of bed textures in side scan sonar echograms of alluvial deposits. We develop a method for automated segmentation of …