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2017

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Using Mixed Effects Modeling To Quantify Difference Between Patient Groups With Diabetic Foot Ulcers, Rachel French Dec 2017

Using Mixed Effects Modeling To Quantify Difference Between Patient Groups With Diabetic Foot Ulcers, Rachel French

Mahurin Honors College Capstone Experience/Thesis Projects

When diabetes progresses, many patients suffer from chronic foot ulcers. In a study described in Matrix Metalloproteinases and Diabetic Foot Ulcers (Muller et al., 2008), sixteen patients with diabetic foot ulcers were examined throughout a twelve week healing period. During this period, levels of matrix metalloproteinases (MMP-1), their inhibitors (TIMP-1), and the extracellular matrix in a wound area were measured at distinct time intervals for each patient. The ratios of these healing components are vital in determining whether a wound will heal or become chronic and never properly heal. Connecting Local and Global Sensitivities in a Mathematical Model for Wound …

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Commencement Convocation Program, Usf, Baccalaureates, December 8, 2017, University Of South Florida Dec 2017

Commencement Convocation Program, Usf, Baccalaureates, December 8, 2017, University Of South Florida

USF Graduation and Convocation Programs

Outstnding Graduate - Alexis Drees; Honorary Doctor of Science - Andrew Hamilton; King O'Neal Scholars - Aneesa Ali, Andrew Apugliese, David Blanchard, Janet Diaz Montes, Mary Edwards, Shayna Gurvitz, Bonnie Hogan Lowlery, Ryan Kurtz, Robert Lockridge, Natalie Meyer, Rachel Moore, Ashley Nandrasy, Carlos Pena Duran, Brittany Raymond, Paul Rogers, Nicholas Romano, Khadijah Tiamiyu, Xamil Vega, Amy Whitehurst, George Wolf, and Alexander Zhideev

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2017 Fall Commencement Program: Winona State University, Winona State University Dec 2017

2017 Fall Commencement Program: Winona State University, Winona State University

WSU Commencement Programs

This is the Winona State University Fall 2017 commencement program. Commencement was on Friday, December 8, 2017.

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Understanding Sleep In Pediatric Patients With Sickle Cell Disease Admitted For Vaso-Occlusive Pain Crisis Through Objective Data, Kalindi Narine, Fan Yang, Tanvi Banerjee, Jude Jonassaint, Nirmish Shah Dec 2017

Understanding Sleep In Pediatric Patients With Sickle Cell Disease Admitted For Vaso-Occlusive Pain Crisis Through Objective Data, Kalindi Narine, Fan Yang, Tanvi Banerjee, Jude Jonassaint, Nirmish Shah

Computer Science and Engineering Faculty Publications

Sickle cell disease (SCD) is an inherited red cell disorder that leads to sickling of red blood cells, anemia and vaso-occlusion. The most common reason for hospitalization and morbidity in children is pain due to vaso-occlusive crisis (VOC). Importantly, poor sleep quality can lead to increased pain the subsequent day and nocturnal pain leads to reduced deep sleep, both which can then modify pain sensitivity. Studies using sleep diaries have shown this cyclical relationship between sleep and pain. Frequent occurrences of restless sleep are therefore believed to contribute to an increased severity and intensity of pain episodes. There is very …

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Micromechanical Modeling Of Shear Banding In Granular Media, Charles Clayton Goodman Dec 2017

Micromechanical Modeling Of Shear Banding In Granular Media, Charles Clayton Goodman

Theses and Dissertations

Shear banding is a commonly observed yet complex form of instability in granular media by which the deformation is localized in a narrow zone along a certain path. The aim of this study is to investigate the micromechanics of shear banding using the discrete element method (DEM). For this purpose, a model was developed and calibrated to simulate the macroscale behavior of sand under plane strain conditions. Upon validation against laboratory experiments, two types of confining boundaries, displacement- and force-controlled, were examined to study the kinematics of shear bands. A constant volume test was then used to investigate the evolution …

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The Relevance And Resiliency Of The Humanities, Stephen C. Behrendt Dec 2017

The Relevance And Resiliency Of The Humanities, Stephen C. Behrendt

Department of English: Faculty Publications

Discussion has grown increasingly urgent among those involved in the humanities; threats to funding for the National Endowment for the Humanities and the National Endowment for the Arts are only the most highly visible indicators of what many call a “war on the humanities.” The issue is a familiar one. With everyone’s finances under increasing stress, there is mounting pressure to “cut back on nonessentials,” and among both educational institutions and the broader public community, the humanities seem easy targets for the cutters and the pruners. There’s a general sense that the humanities are not very useful when it comes …

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The 13th Data Release Of The Sloan Digital Sky Survey: First Spectroscopic Data From The Sdss-Iv Survey Mapping Nearby Galaxies At Apache Point Observatory, Franco D. Albareti, Carlos Allende Prieto, Andres Almeida, Friedrich Anders, Scott Anderson, Brett H. Andrews, Alfonso Aragón-Salamanca, Maria Argudo-Fernández, Eric Armengaud, Eric Aubourg, Vladimir Avila-Reese, Carles Badenes, Stephen Bailey, Beatriz Barbuy, Kat Barger, Jorge Barrera-Ballesteros, Curtis Bartosz, Sarbani Basu, Dominic Bates, Giuseppina Battaglia, Falk Baumgarten, Julien Baur, Julian Bautista, Timothy C. Beers, Francesco Belfiore, Matthew Bershady, Sara Bertran De Lis, Jonathan C. Bird, Dmitry Bizyaev, Guillermo A. Blanc, Renbin Yan, Kai Zhang Dec 2017

The 13th Data Release Of The Sloan Digital Sky Survey: First Spectroscopic Data From The Sdss-Iv Survey Mapping Nearby Galaxies At Apache Point Observatory, Franco D. Albareti, Carlos Allende Prieto, Andres Almeida, Friedrich Anders, Scott Anderson, Brett H. Andrews, Alfonso Aragón-Salamanca, Maria Argudo-Fernández, Eric Armengaud, Eric Aubourg, Vladimir Avila-Reese, Carles Badenes, Stephen Bailey, Beatriz Barbuy, Kat Barger, Jorge Barrera-Ballesteros, Curtis Bartosz, Sarbani Basu, Dominic Bates, Giuseppina Battaglia, Falk Baumgarten, Julien Baur, Julian Bautista, Timothy C. Beers, Francesco Belfiore, Matthew Bershady, Sara Bertran De Lis, Jonathan C. Bird, Dmitry Bizyaev, Guillermo A. Blanc, Renbin Yan, Kai Zhang

Physics and Astronomy Faculty Publications

The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) began observations in 2014 July. It pursues three core programs: the Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2), Mapping Nearby Galaxies at APO (MaNGA), and the Extended Baryon Oscillation Spectroscopic Survey (eBOSS). As well as its core program, eBOSS contains two major subprograms: the Time Domain Spectroscopic Survey (TDSS) and the SPectroscopic IDentification of ERosita Sources (SPIDERS). This paper describes the first data release from SDSS-IV, Data Release 13 (DR13). DR13 makes publicly available the first 1390 spatially resolved integral field unit observations of nearby galaxies from MaNGA. It …

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Immigration-Related Identity Markers And Well-Being In Academia: Perceptions Of Conflict At Work And Life Satisfaction Among Foreign-Born Professors In The United States, Elena Gheorghiu Dec 2017

Immigration-Related Identity Markers And Well-Being In Academia: Perceptions Of Conflict At Work And Life Satisfaction Among Foreign-Born Professors In The United States, Elena Gheorghiu

Doctor of International Conflict Management Dissertations

Although immigrant professionals contribute significantly to the American economy, their processes of adaptation to the host country and integration into work departments has not been sufficiently examined. Based on a survey of 241 immigrant professors in the United States, the current study sought to reveal how immigration-related identity markers, that is acculturation strategy adopted and migrant personality, impact the levels of private life satisfaction, work satisfaction, and perceptions of conflict at work. Results of Ordinary Least Squares regression analyses revealed that maintaining a balance between original cultural values and local ones, as well as scoring towards the lower-end of the …

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Photoelectron Angular Distributions From Rotationally Resolved Autoionizing States Of N2, Alexander M. Chartrand, Elizabeth F. Mccormack, Ugo Jacovella, David M P Holland, Berenger Gans, Xiaofeng Tang, Gustavo A. García, Laurent Nahon, Stephen T. Pratt Dec 2017

Photoelectron Angular Distributions From Rotationally Resolved Autoionizing States Of N2, Alexander M. Chartrand, Elizabeth F. Mccormack, Ugo Jacovella, David M P Holland, Berenger Gans, Xiaofeng Tang, Gustavo A. García, Laurent Nahon, Stephen T. Pratt

Physics Faculty Research and Scholarship

The single-photon, photoelectron-photoion coincidence spectrum of N2 has been recorded at high (~1.5 cm–1 ) resolution in the region between the N2+ X 2Σg+, v+ = 0 and 1 ionization thresholds by using a double-imaging spectrometer and intense vacuum-ultraviolet light from the Synchrotron SOLEIL. This approach provides the relative photoionization cross section, the photoelectron energy distribution, and the photoelectron angular distribution as a function of photon energy. The region of interest contains autoionizing valence states, vibrationally autoionizing Rydberg states converging to vibrationally excited levels of the N2+ X 2 …

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Some Dimension Reduction Strategies For The Analysis Of Survey Data, Jiaying Weng, Derek S. Young Dec 2017

Some Dimension Reduction Strategies For The Analysis Of Survey Data, Jiaying Weng, Derek S. Young

Statistics Faculty Publications

In the era of big data, researchers interested in developing statistical models are challenged with how to achieve parsimony. Usually, some sort of dimension reduction strategy is employed. Classic strategies are often in the form of traditional inference procedures, such as hypothesis testing; however, the increase in computing capabilities has led to the development of more sophisticated methods. In particular, sufficient dimension reduction has emerged as an area of broad and current interest. While these types of dimension reduction strategies have been employed for numerous data problems, they are scantly discussed in the context of analyzing survey data. This …

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Universities Take On Health Care Challenges On Many Fronts, Caron Blanton Dec 2017

Universities Take On Health Care Challenges On Many Fronts, Caron Blanton

University of Mississippi News

UM faculty and students work to improve wellness, daily life for all Mississippians

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Interaction-Free Effects Between Distant Atoms, Yakir Aharonov, Eliahu Cohen, Avshalom C. Elitzur, Lee Smolin Dec 2017

Interaction-Free Effects Between Distant Atoms, Yakir Aharonov, Eliahu Cohen, Avshalom C. Elitzur, Lee Smolin

Mathematics, Physics, and Computer Science Faculty Articles and Research

A Gedanken experiment is presented where an excited and a ground-state atom are positioned such that, within the former’s half-life time, they exchange a photonwith 50% probability.Ameasurement of their energy statewill therefore indicate in 50% of the cases that no photon was exchanged. Yet other measurements would reveal that, by the mere possibility of exchange, the two atoms have become entangled. Consequently, the “no exchange” result, apparently precluding entanglement, is non-locally established between the atoms by this very entanglement. This quantum-mechanical version of the ancient Liar Paradox can be realized with already existing transmission schemes, with the addition of Bell’s …

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Heterogeneous Anisotropy Index And Scaling In Multiphase Random Polycrystals, Muhammad Ridwan Murshed Dec 2017

Heterogeneous Anisotropy Index And Scaling In Multiphase Random Polycrystals, Muhammad Ridwan Murshed

Theses and Dissertations

Under consideration is the finite-size scaling of elastic properties in single and two-phase random polycrystals with individual grains belonging to any crystal class (from cubic to triclinic). These polycrystals are generated by Voronoi tessellations with varying grain sizes and volume fractions. By employing variational principles in elasticity, we introduce the notion of a 'Heterogeneous Anisotropy Index' and investigate its role in the scaling of elastic properties at finite mesoscales. The index turns out to be a function of 43 variables, 21 independent components for each phase and the volume fraction of either phase. Furthermore, the relationship between Heterogeneous Anisotropy Index …

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Bayesian Prediction Intervals For Assessing P-Value Variability In Prospective Replication Studies, Olga A. Vsevolozhskaya, Gabriel Ruiz, Dmitri Zaykin Dec 2017

Bayesian Prediction Intervals For Assessing P-Value Variability In Prospective Replication Studies, Olga A. Vsevolozhskaya, Gabriel Ruiz, Dmitri Zaykin

Biostatistics Faculty Publications

Increased availability of data and accessibility of computational tools in recent years have created an unprecedented upsurge of scientific studies driven by statistical analysis. Limitations inherent to statistics impose constraints on the reliability of conclusions drawn from data, so misuse of statistical methods is a growing concern. Hypothesis and significance testing, and the accompanying P-values are being scrutinized as representing the most widely applied and abused practices. One line of critique is that P-values are inherently unfit to fulfill their ostensible role as measures of credibility for scientific hypotheses. It has also been suggested that while P-values …

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Micromechanical Modeling Of The Soil Water Retention Curve Using A Coupled Discrete Element-Lattice Boltzmann Method, Jonathan Frank Fili Dec 2017

Micromechanical Modeling Of The Soil Water Retention Curve Using A Coupled Discrete Element-Lattice Boltzmann Method, Jonathan Frank Fili

Theses and Dissertations

The Soil Water Retention Curve (SWRC) is a key constitutive relationship describing the behavior of variably saturated soils. The objective of this research is to assess the performance of a hydro-mechanical model, developed by coupling the lattice Boltzmann method (LBM) with the discrete element method (DEM), for micromechanical simulation of the SWRC. The DEM-LBM model is used to examine the effects of wave propagation on fluid-solid interaction. A multi-phase LBM is then employed within a static particle array generated by the DEM to examine the effects of initial fluid density distribution. The SWRCs are generated by recording the liquid pore …

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Large-Scale Graph Visual Analytics, Fangyan Zhang Dec 2017

Large-Scale Graph Visual Analytics, Fangyan Zhang

Theses and Dissertations

Large-scale graph analysis and visualization is becoming a more challenging task, due to the increasing amount of graph data. This dissertation focuses on methods to ease the task of exploring large-scale graphs through graph sampling and visualization. Graph sampling aims to reduce the complexity of graph drawing, while preserving properties of the original graph, allowing analysis of the smaller sample which yields the characteristics similar to those of the original graph. Graph visualization is an effective and intuitive approach to observing structures within graph data. For large-scale graphs, graph sampling and visualization are straightforward strategies to gain insights into common …

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Commencement Ceremonies, University Of North Florida Dec 2017

Commencement Ceremonies, University Of North Florida

Commencement Printed Materials

Program for the Fall Commencement ceremonies.

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The Sedimentary Imprint Of Pleistocene Glacio-Eustasy: Implications For Global Correlations Of Seismic Sequences, Cecilia M. Mchugh, Craig S. Fulthorpe, Koichi Hoyanagi, Peter Blum, Gregory S. Mountain, Kenneth G. Miller Dec 2017

The Sedimentary Imprint Of Pleistocene Glacio-Eustasy: Implications For Global Correlations Of Seismic Sequences, Cecilia M. Mchugh, Craig S. Fulthorpe, Koichi Hoyanagi, Peter Blum, Gregory S. Mountain, Kenneth G. Miller

Publications and Research

We evaluate lithofacies, chronology, and seismic sequences from the Canterbury Basin, New Zealand passive continental slope (Integrated Ocean Drilling Program [IODP] Expedition 317 Site U1352 and environs) and compare this with slope sequences from the New Jersey passive margin. Our goal is to understand continental slope sedimentation in response to glacio-eustasy and test the concepts of sequence stratigraphy. High-resolution geochemical elemental and lithostratigraphic analyses were calibrated to a chronology constructed from benthic foramininferal oxygen isotopes for the past ~1.8 m.y. We identify lithofacies successions by their unique geochemical and lithologic signature and correlate them with marine isotope stages (MIS) at …

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First Low-Frequency Einstein@Home All-Sky Search For Continuous Gravitational Waves In Advanced Ligo Data, B. P. Abbott, K. Aultoneal, S. Gaudio, K. Gill, B. Hughey, J. W. W. Pratt, E. Schmidt, S. G. Schwalbe, M. J. Szczepańczyk, M. Zanolin, Et Al. Dec 2017

First Low-Frequency Einstein@Home All-Sky Search For Continuous Gravitational Waves In Advanced Ligo Data, B. P. Abbott, K. Aultoneal, S. Gaudio, K. Gill, B. Hughey, J. W. W. Pratt, E. Schmidt, S. G. Schwalbe, M. J. Szczepańczyk, M. Zanolin, Et Al.

Publications

We report results of a deep all-sky search for periodic gravitational waves from isolated neutron stars in data from the first Advanced LIGO observing run. This search investigates the low frequency range of Advanced LIGO data, between 20 and 100 Hz, much of which was not explored in initial LIGO. The search was made possible by the computing power provided by the volunteers of the Einstein@Home project. We find no significant signal candidate and set the most stringent upper limits to date on the amplitude of gravitational wave signals from the target population, corresponding to a sensitivity depth of 48.7 …

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Cross-Curricular Writing In Mathematics For Comprehension, Kirsten Stowell Dec 2017

Cross-Curricular Writing In Mathematics For Comprehension, Kirsten Stowell

Honors Theses

Even though the idea of implementing writing in a mathematics classroom is far from new and the benefits from doing so are hardly nonexistent, this concept is often not found in modern secondary mathematics classrooms. Writing about mathematics allows students to organize and communicate their thinking, gain a better conceptual understanding of mathematical topics, develop a stronger sense of mathematical procedure, move beyond surface-level thinking, and place abstract ideas into context. Writing can also be used by teachers as a formative assessment to explicitly determine if students are struggling conceptually or procedurally in a mathematics classroom to then adjust instruction …

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Biodiversity Of Larval And Adult Dragonflies And Damselflies (Odonata) Of Interdunal Wetlands At Saugatuck Harbor Natural Area, Devon Volz Dec 2017

Biodiversity Of Larval And Adult Dragonflies And Damselflies (Odonata) Of Interdunal Wetlands At Saugatuck Harbor Natural Area, Devon Volz

Honors Theses

The effects of climate change on insects in the United States have yet to be fully understood. Research on the insect populations of Lake Michigan’s interdunal wetlands has been particularly limited. As these vibrant habitats are already at risk of destruction due to increased development, it is vital to have a working knowledge of the species that are living in the habitat. However, to date, there have been no studies on assemblages of interdunal wetlands in Michigan. Examining community compositions is critical to understanding the ecological problems that could occur in the future. This study is the first to look …

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Past Observable Dynamics Of A Continuously Monitored Qubit, Luis Pedro García-Pinto, Justin Dressel Dec 2017

Past Observable Dynamics Of A Continuously Monitored Qubit, Luis Pedro García-Pinto, Justin Dressel

Mathematics, Physics, and Computer Science Faculty Articles and Research

Monitoring a quantum observable continuously in time produces a stochastic measurement record that noisily tracks the observable. For a classical process, such noise may be reduced to recover an average signal by minimizing the mean squared error between the noisy record and a smooth dynamical estimate. We show that for a monitored qubit, this usual procedure returns unusual results. While the record seems centered on the expectation value of the observable during causal generation, examining the collected past record reveals that it better approximates a moving-mean Gaussian stochastic process centered at a distinct (smoothed) observable estimate. We show that this …

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Demonstration Of Ultra-High Recyclable Energy Densities In Domain-Engineered Ferroelectric Films, Hongbo Cheng, Jun Ouyang, Yun-Xiang Zhang, David J. Ascienzo, Yao Li, Yu-Yao Zhao, Yuhang Ren Dec 2017

Demonstration Of Ultra-High Recyclable Energy Densities In Domain-Engineered Ferroelectric Films, Hongbo Cheng, Jun Ouyang, Yun-Xiang Zhang, David J. Ascienzo, Yao Li, Yu-Yao Zhao, Yuhang Ren

Publications and Research

Dielectric capacitors have the highest charge/discharge speed among all electrical energy devices, but lag behind in energy density. Here we report dielectric ultracapacitors based on ferroelectric films of Ba(Zr0.2,Ti0.8)O3 which display high-energy densities (up to 166 J cm–3) and efficiencies (up to 96%). Different from a typical ferroelectric whose electric polarization is easily saturated, these Ba(Zr0.2,Ti0.8)O3 films display a much delayed saturation of the electric polarization, which increases continuously from nearly zero at remnant in a multipolar state, to a large value under the maximum electric field, leading to drastically improved recyclable energy densities. This is achieved by the creation …

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Gender And Domain Differences In College Students’ Responses To Success And Failure, Elizabeth K. Lawner Dec 2017

Gender And Domain Differences In College Students’ Responses To Success And Failure, Elizabeth K. Lawner

Doctoral Dissertations

Four studies examined perceptions of STEM and non-STEM college courses, gender and domain differences in responses to success and failure, and whether interventions to make failure seem normative could ameliorate negative responses to failure, particularly among women. Study 1 found that college students perceive STEM courses as more difficult than non-STEM courses, and believe that introductory STEM courses are used to remove students from those fields. Moreover, the difference in perceptions of STEM and non-STEM courses was larger for women. Study 2 piloted a novel task that was used in Studies 3 and 4. These studies did not support the …

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The Cosm Aggregate, Georgia Southern University Dec 2017

The Cosm Aggregate, Georgia Southern University

College of Science & Mathematics: News & Publications (2012-2022)

No abstract provided.

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The Effects Of Institutional Structure Of Predominantly White Land-Grant Colleges And Universities In The Southeast On African American Graduation Rates In Engineering, Angela Denice Clinkscales Verdell Dec 2017

The Effects Of Institutional Structure Of Predominantly White Land-Grant Colleges And Universities In The Southeast On African American Graduation Rates In Engineering, Angela Denice Clinkscales Verdell

Theses and Dissertations

The U.S. Department of Labor reports that only 5% of U.S. workers are employed in fields related to science and engineering, yet they are responsible for more than 50% of our sustained economic expansion (U.S Department of Labor, 2007). Furthermore, minorities makeup 0.0025 % (1/400) of that Science, Technology, Engineering, and Mathematics (STEM) workforce. Methods are currently underway to understand and address the attrition of minority students in the STEM workforce. The problem of underrepresentation of minorities (URMs) in STEM careers continues to result in a “leaky pipeline” where URMs have cited institutional factors such “chilly campus” climates as barriers …

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Quantum Dragon Solutions For Electron Transport Through Single-Layer Planar Rectangular, Godfred Inkoom Dec 2017

Quantum Dragon Solutions For Electron Transport Through Single-Layer Planar Rectangular, Godfred Inkoom

Theses and Dissertations

When a nanostructure is coupled between two leads, the electron transmission probability as a function of energy, E, is used in the Landauer formula to obtain the electrical conductance of the nanodevice. The electron transmission probability as a function of energy, T (E), is calculated from the appropriate solution of the time independent Schrödinger equation. Recently, a large class of nanostructures called quantum dragons has been discovered. Quantum dragons are nanodevices with correlated disorder but still can have electron transmission probability unity for all energies when connected to appropriate (idealized) leads. Hence for a single channel setup, the electrical conductivity …

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Dry Reforming Of Methane To Produce Syngas Over Ni-Based Bimodal Pore Catalysts, Zhenghong Bao Dec 2017

Dry Reforming Of Methane To Produce Syngas Over Ni-Based Bimodal Pore Catalysts, Zhenghong Bao

Theses and Dissertations

Dry reforming of methane is an important reaction to generate syngas from two greenhouse gases. The syngas can be used in Fishcher-Tropsch synthesis to produce valueded chemicals. Chapter I reviews the catalytic conversion of methane and carbon dioxide to syngas, including DRM reaction chemistry, catalysts used in this process, catalyst deactivation, and the kinetics of DRM reaction. Chapter II discusses the development of bimodal pore NiCeMgAl catalysts for DRM reaction. Bimodal pore NiCeMgAl catalysts were synthesized via the refluxed co-precipitation method and systematically investigated the influence of active metal loading, calcination temperature, reduction temperature and gas hourly space velocity (GHSV) …

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Control Of Görtler Vortices In High-Speed Boundary Layers, Radwa Alaziz Dec 2017

Control Of Görtler Vortices In High-Speed Boundary Layers, Radwa Alaziz

Theses and Dissertations

Görtler vortices develop in boundary layer flows over concave surfaces due to the imbalance between centrifugal forces and the wall-normal pressure gradient. These vortices can be efficient precursors to transition in boundary layers exposed to free-stream disturbance or surface non-uniformities, because they can alter the mean flow causing the laminar flow to breakdown into turbulence. In this thesis, a control technique aimed at reducing the energy associated with Görtler vortices that develop in supersonic boundary layers is introduced and tested. The control algorithm is based on distributed blowing and suction, with sensors placed either in the flow or at the …

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Ecology And Conservation Of Bird Assemblages In Native And Afforested Environments In The Northern Campos Grasslands Of Uruguay, Juan Andrés Martínez Lanfranco Dec 2017

Ecology And Conservation Of Bird Assemblages In Native And Afforested Environments In The Northern Campos Grasslands Of Uruguay, Juan Andrés Martínez Lanfranco

Theses and Dissertations

Commercial forestry has expanded across the Rio de la Plata Grasslands (RPG) of South America in recent decades. I conducted a resource-use based study on bird communities during the 2013-2014 austral breeding season in northern Uruguay. I assessed relationships between habitat types and bird abundance as a function of vegetation structure. To compare avian responses to treatments, I included native environments, pine and eucalyptus plantations of different ages and thinning regimes. I detected differences in species richness and composition and species-specific responses in abundance along structural gradients sampled. Although poorer in species than native habitat types, tree plantations were extensively …

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