Digital Commons Network^™

Groundwater And Surface Water Availability Via A Joint Simulation With A Double Control Of Water Quantity And Ecologically Ideal Shallow Groundwater Depth: A Case Study On The Sanjiang Plain, Northeast China, Xihua Wang, Guangxin Zhang, Y. Jun Xu

Faculty Publications

Joint assessment of groundwater-surface water resources can help develop sustainable regional water management plans for intensive agriculture. In this study, we estimated allowable groundwater and surface water quantities using a water balance model, WetSpass-GMS, for the Sanjiang Plain (10.9 × 104 km2), one of the most important grain production bases in China. We then applied a double control based on the groundwater availability and the concept of an ecologically ideal shallow groundwater depth (EISGD) to three different water use scenarios: (A) continuation of the current water use management; (B) maximal use of water resources under a double control; and (C) …

The Macroecology Of Infectious Diseases: A New Perspective On Global-Scale Drivers Of Pathogen Distributions And Impacts, Patrick R. Stephens, Sonia Altizer, Katherine F. Smith, A. Alonso Aguirre, James H. Brown, Sarah A. Budischak, James E. Byers, Tad A. Dallas, T. Jonathan Davies, John M. Drake, Vanessa O. Ezenwa, Maxwell J. Farrell, John L. Gittleman, Barbara A. Han, Shan Huang, Rebecca A. Hutchinson, Pieter Johnson, Charles L. Nunn, David Onstad, Andrew Park, Gonzalo M. Vazquez-Prokopec, John P. Schmidt, Robert Poulin

Faculty Publications

© 2016 John Wiley & Sons Ltd/CNRS. Identifying drivers of infectious disease patterns and impacts at the broadest scales of organisation is one of the most crucial challenges for modern science, yet answers to many fundamental questions remain elusive. These include what factors commonly facilitate transmission of pathogens to novel host species, what drives variation in immune investment among host species, and more generally what drives global patterns of parasite diversity and distribution? Here we consider how the perspectives and tools of macroecology, a field that investigates patterns and processes at broad spatial, temporal and taxonomic scales, are expanding scientific …

Geographical Analysis Of Community Resilience To Seismic Hazard In Southwest China, Xiaolu Li, Lei Wang, Shan Liu

Faculty Publications

This article presents an explorative analysis of community resilience to seismic hazard in the 2008 Wenchuan Earthquake area of Southwest China. We used a regression model to analyze the impact of 13 key socioeconomic and demographic variables on community resilience in 105 counties, based on data derived from population census and provincial statistical yearbooks of China. In this research, we argue that community resilience should be measured by the change of population growth rate (Δdp) instead of population growth rate (dp) when using socioeconomic data from a fast-growing country such as China. Using Δdp as the dependent variable resulted in …

Systematic Bias In Baroclinic Energy Estimates In Shelf Seas, Gordon R. Stephenson, J. A. Mattias Green, Mark E. Inall

Faculty Publications

A simple model of an internal wave advected by an oscillating barotropic flow suggests flaws in standard approaches to estimating properties of the internal tide. When the M₂ barotropic tidal current amplitude is of similar size to the phase speed of the M₂ baroclinic tide, spectral and harmonic analysis techniques lead to erroneous estimates of the amplitude, phase, and energy in the M₂ internal tide. In general, harmonic fits and bandpass or low-pass filters that attempt to isolate the lowest M₂ harmonic significantly underestimate the strength of M₂ baroclinic energy fluxes in shelf seas. Baroclinic …

Compliance Police Or Business Partner? Institutional Complexity And Occupational Tensions In Human Resource Managment, Kurt Sandholtz, Tyler N. Burrows

Faculty Publications

Faced with institutional demands, organizations often create departments whose work is divorced from technical imperatives. This paper examines workers in one such department: Human Resources. Analysis of HR's recent history and evidence from an ethnographic study of HR work highlight the institutional origins of conflict between HR's established "compliance police" role and the "business partner" expectations of line managers. The paper outlines a theory of how organizational responses to institutional complexity contribute to persistent tension in HR and other heteronomous occupations.

Morphological Characteristics Of The Ice Margins Of Antarctic Ice Shelf And Outlet Glacier Extracted From Icesat Laser Altimetry Along-Track Profiles, Jieun Kim, Jaehyung Yu, Lei Wang, Hongxing Liu, Haein Shin

Faculty Publications

The Antarctic ice sheet topography including elevation and slope is a key parameter for understanding ice sheet dynamics because the surface slope is a major controller of the ice flow gravitational driving stress magnitude. This study used Ice, Cloud, and land Elevation Satellite (ICESat) laser altimetry data to analyze the ice margin morphological parameters for 20 ice shelves and 12 outlet glaciers distributed over Antarctica. The bottom-up segmentation algorithm application effectively extracted the morphological parameters from the laser altimetry profiles. The ice shelves had an average boundary elevation of 29.5 m and a slope of 7.8°, with a decreasing surface …

The Use Of Aerial Rgb Imagery And Lidar In Comparing Ecological Habitats And Geomorphic Features On A Natural Versus Man-Made Barrier Island, Carlton P. Anderson, Gregory A. Carter, William R. Funderburk

Faculty Publications

The Mississippi (MS) barrier island chain along the northern Gulf of Mexico coastline is subject to rapid changes in habitat, geomorphology and elevation by natural and anthropogenic disturbances. The purpose of this study was to compare habitat type coverage with respective elevation, geomorphic features and short-term change between the naturally-formed East Ship Island and the man-made Sand Island. Ground surveys, multi-year remotely-sensed data, habitat classifications and digital elevation models were used to quantify short-term habitat and geomorphic change, as well as to examine the relationships between habitat types and micro-elevation. Habitat types and species composition were the same on both …

Intersystem Implications Of The Developmental Origins Of Health And Disease: Advancing Health Promotion In The 21st Century, Michael D. Barnes, Thomas L. Heaton, Michael C. Goates, Justin M. Packer

Faculty Publications

The developmental origins of health and disease (DOHaD) theory and life course theory (LCT) are emerging fields of research that have significant implications for the public health and health promotion professions. Using a DOHaD/LCT perspective, social determinants of health (SDH) take on new critical meaning by which health promotion professionals can implement DOHaD/LCT guided interventions, including recommended policies. Through these interventions, public health could further address the sources of worldwide chronic disease epidemics and reduce such disease rates substantially if related policy, programs, and interdisciplinary and multi-sector collaboration are emphasized. Additional characteristics of the most effective interventions involve context-specific adaptation …

A New Genus And Species Of Blind Sleeper (Teleostei: Eleotridae) From Oaxaca, Mexico: First Obligate Cave Gobiiform In The Western Hemisphere, Stephen J. Walsh, Prosanta Chakrabarty

Faculty Publications

© 2016 by the American Society of Ichthyologists and Herpetologists. Caecieleotris morrisi, new genus and species of sleeper (family Eleotridae), is described from a submerged freshwater cave in a karst region of the northern portion of the State of Oaxaca, Mexico, Río Papaloapan drainage, Gulf of Mexico basin. The new species represents the first cave-adapted sleeper known from the Western Hemisphere and is one of only 13 stygobitic gobiiforms known worldwide, with all others limited in distribution to the Indo-Pacific region. The new taxon represents a third independent evolution of a hypogean lifestyle in sleepers, the others being two species …

High-Resolution Spatial Distribution And Estimation Of Access To Improved Sanitation In Kenya, Peng Jia, John D. Anderson, Michael Leitner, Richard Rheingans

Faculty Publications

Background: Access to sanitation facilities is imperative in reducing the risk of multiple adverse health outcomes. A distinct disparity in sanitation exists among different wealth levels in many low-income countries, which may hinder the progress across each of the Millennium Development Goals. Methods: The surveyed households in 397 clusters from 2008-2009 Kenya Demographic and Health Surveys were divided into five wealth quintiles based on their national asset scores. A series of spatial analysis methods including excess risk, local spatial autocorrelation, and spatial interpolation were applied to observe disparities in coverage of improved sanitation among different wealth categories. The total number …

Local Versus Generalized Phenotypes In Two Sympatric Aurelia Species: Understanding Jellyfish Ecology Using Genetics And Morphometrics, Luciano M. Chiaverano, Keith Bayha, William M. Graham

Faculty Publications

For individuals living in environmentally heterogeneous environments, a key component for adaptation and persistence is the extent of phenotypic differentiation in response to local environmental conditions. In order to determine the extent of environmentally induced morphological variation in a natural population distributed along environmental gradients, it is necessary to account for potential genetic differences contributing to morphological differentiation. In this study, we set out to quantify geographic morphological variation in the moon jellyfish Aurelia exposed at the extremes of a latitudinal environmental gradient in the Gulf of Mexico (GoM). We used morphological data based on 28 characters, and genetic data …

A Compilation Of Global Bio-Optical In Situ Data For Ocean-Colour Satellite Applications, André Valente, Shubba Sathyendranath, Vanda Brotas, Steve Groom, Michael Grant, Malcolm Taberner, David Antoine, Robert A. Arnone Prof, William M. Balch, Kathryn Baker, Ray Barlow, Simon Bélanger, Jean-François Berthon, Sükrü Beşiktepe, Vittorio Brando, Elisabetta Canuti, Francisco Chavez, Hervé Claustre, Richard Crout, Robert Frounin, Carlos García-Soto, Stuart W. Gibb, Richard Gould, Stanford Hooker, Mati Kahru, Holger Klein, Susanne Kratzer, Hubert Loisel, David Mckee, Brian G. Mitchell, Tiffany Moisan, Frank Muller-Karger, Leonie O'Dowd, Michael Ondrusek, Alex J. Poulton, Michel Repecaud, Timothy Smythe, Heidi M. Sosik, Michael Twardowski, Kenneth Voss, Jeremy Werdell, Marcel Wernand, Giuseppe Zibordi

Faculty Publications

A compiled set of in situ data is important to evaluate the quality of ocean-colour satellite-data records. Here we describe the data compiled for the validation of the ocean-colour products from the ESA Ocean Colour Climate Change Initiative (OC-CCI). The data were acquired from several sources (MOBY, BOUSSOLE, AERONET-OC, SeaBASS, NOMAD, MERMAID, AMT, ICES, HOT, GeP&CO), span between 1997 and 2012, and have a global distribution. Observations of the following variables were compiled: spectral remote-sensing reflectances, concentrations of chlorophyll a, spectral inherent optical properties and spectral diffuse attenuation coefficients. The data were from multi-project archives acquired via the open internet …

Agriculture On The Brink:Climate Change, Labor And Smallholder Farming In Botswana, William G. Moseley

Faculty Publications

No abstract provided.

Sustainability Science Graduate Students As Boundary Spanners, Spencer R. Meyer, Vanessa R. Levesque, Karen H. Bieluch, Michelle L. Johnson, Bridie Mcgreavy, Stacia Dreyer, Hollie Smith

Faculty Publications

Graduate training in sustainability science (SS) focuses on interdisciplinary research, stakeholder-researcher partnerships, and creating solutions from knowledge. But becoming a sustainability scientist also requires specialized training that addresses the complex boundaries implicit in sustainability science approaches to solving social-ecological system challenges. Using boundary spanning as a framework, we use a case study of the Sustainability Solutions Initiative (SSI) at the University of Maine to explicate key elements for graduate education training in SS. We used a mixed-methods approach, including a quantitative survey and autoethnographic reflection, to analyze our experiences as SSI doctoral students. Through this research, we identified four essential …

Comparing Library Wayfinding Among Novices And Experts, Holt Zaugg, Curtis Child, Dalton Bennett, Jace Brown, Melissa Alcaraz, Alexander Allred, Nathaniel Andrus, Drew Babcock, Maria Barriga, Madison Brown, Lindsey Bulloch, Todd Corbett, Michelle Curtin, Victoria Giossi, Samantha Hawkins, Sergio Hernandez, Kayia Jacobs, Jette Jones, David Kessler, Samuel Lee, Sara Mackay, Amy Marshall, Dallin Maxfield, Cory Mcfarland, Brennen Miller, Maia Roberson, Kristy Rogers, Devin Stoker, Manase Tonga, Abby Twitchell, Tinesha Zandamela

Faculty Publications

Purpose – The purpose of this paper is to investigate similar and different wayfinding strategies used by novice and expert patrons at an academic library.

Design/methodology/approach – The study employed a usability study approach. In total, 12 people, places, or things were identified as important for students to be able to locate within an academic library. Students from one of three groups (high school, freshmen, and seniors) were randomly assigned a scenario requiring them to find the indicated person, place, or thing. Student researchers video recorded participants and took field notes during the wayfinding activity and conducted an interview about …

Perceptions And Experiences Of Human Papillomavirus (Hpv) Infection And Testing Among Low-Income Mexican Women, Leith León-Maldonado, Emily Wentzell, Brandon Brown, Betania Allen-Leigh, Leticia Torres-Ibarra, Jorge Salmerón, Deborah L. Billings, Jim Thrasher, Eduardo Lazcano-Ponce

Faculty Publications

Background

HPV infection causes cervical cancer, a major contributor to morbidity and mortality among low-income Mexican women. Human papillomavirus (HPV) DNA testing is now a primary screening strategy in Mexico’s early cervical cancer detection program (ECDP). Research on Mexican women’s perceptions of HPV and testing is necessary for establishing culturally appropriate protocols and educational materials. Here, we explore perceptions about HPV and HPV-related risk factors among low-income Mexican ECDP participants.

Methods

We conducted semi-structured interviews with 24 ECDP participants from two primary care health clinics in Michoacán state, Mexico. Interviews addressed women’s understandings of and experiences with HPV and HPV …

Long-Term Shifts In The Patterns And Underlying Processes Of Plant Associations In Wisconsin Forests, Daijiang Li, Donald Waller

Faculty Publications

© 2016 John Wiley & Sons Ltd. Aim: Plant species co-occur within communities in response to variation in environmental conditions, limited species dispersal and biotic interactions. We used surveys and resurveys of the same sites of three temperate forest plant communities to study patterns of association between co-occurring species pairs and to infer how these mechanisms contribute to community assembly. Our goal was to compare these forces among communities occupying more and less disturbed landscapes and examine how these have changed over the last 50 years. Location: Wisconsin, USA. Methods: We resurveyed 266 sites first surveyed in the 1950s to …

Mitochondrial Dna Variation In Southeastern Pre-Columbian Canids, Kristin E. Brzeski, Melissa B. Debiasse, David R. Rabon, Michael J. Chamberlain, Sabrina S. Taylor

Faculty Publications

The taxonomic status of the red Wolf (Canis rufus) is heavily debated, but could be clarified by examining historic specimens from the southeastern United States. We analyzed mitochondrial DNA (mtDNA) from 3 ancient (350-1900 year olds) putative Wolf samples excavated from middens and sinkholes within the historic red Wolf range. We detected 3 unique mtDNA haplotypes, which grouped with the coyote mtDNA clade, suggesting that the canids inhabiting southeastern North America prior to human colonization from Europe were either coyotes, which would vastly expand historic coyote distributions, an ancient coyote-Wolf hybrid, or a North American evolved red Wolf lineage related …

Dynamic Simulation And Numerical Analysis Of Hurricane Storm Surge Under Sea Level Rise With Geomorphologic Changes Along The Northern Gulf Of Mexico, Matthew V. Bilskie, S. C. Hagen, Karim Alizad, S. C. Medeiros, D. L. Passeri, H. F. Needham, A. Cox

Faculty Publications

This work outlines a dynamic modeling framework to examine the effects of global climate change, and sea level rise (SLR) in particular, on tropical cyclone-driven storm surge inundation. The methodology, applied across the northern Gulf of Mexico, adapts a present day large-domain, high resolution, tide, wind-wave, and hurricane storm surge model to characterize the potential outlook of the coastal landscape under four SLR scenarios for the year 2100. The modifications include shoreline and barrier island morphology, marsh migration, and land use land cover change. Hydrodynamics of 10 historic hurricanes were simulated through each of the five model configurations (present day …

Helminthr: An R Interface To The London Natural History Museum's Host-Parasite Database, Tad Dallas

Faculty Publications

© 2016 Nordic Society Oikos. The understanding of the diversity and distribution of helminth parasites is currently constrained by the limited number of host-parasite interaction databases, and the difficulty in accessing existing data. The London Natural History Museum's Host-Parasite Database represents one such underutilized database, containing over a quarter million helminth parasite occurrence records, accessible through a web interface. To enable users to programmatically search and manipulate data from this database, I developed an R package called helminthR. Here, I introduce the core functions of the package, and detail how helminthR can be used to obtain host-parasite interaction records, citations …

Frequency Of Cry1f Non-Recessive Resistance Alleles In North Carolina Field Populations Of Spodoptera Frugiperda (Lepidoptera: Noctuidae), Guoping Li, Dominic Reisig, Jin Miao, Fred Gould, Fangneng Huang, Hongqiang Feng

Faculty Publications

Fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), is a target species of transgenic corn (Zea mays L.) that expresses single and pyramided Bacillus thuringiensis (Bt) toxin. In 2014, S. frugiperda were collected from a light trap in North Carolina, and a total of 212 F1/F2 isofemale lines of S. frugiperda were screened for resistance to Bt and non-Bt corn. All of the 212 isolines were susceptible to corn tissue expressing Cry1A.105 + Cry2Ab, Cry1F + Cry1A.105 + Cry2Ab, and Cry1F + Cry1Ab + Vip3Aa20. Growth rate bioassays were performed to isolate non-recessive Bt resistance alleles. Seven individuals out of …

Fluor-Schorl, A New Member Of The Tourmaline Supergroup, And New Data On Schorl From The Cotype Localities, Andreas Ertl, Uwe Kolitsch, M. Darby Dyar, Hans Peter Meyer, George R. Rossman, Darrell J. Henry, Markus Prem, Thomas Ludwig, Lutz Nasdala, Christian L. Lengauer, Ekkehart Tillmanns, Gerhard Niedermayr

Faculty Publications

© 2015 E. Schweizerbart'sche Verlagsbuchhandlung. Fluor-schorl, NaFe2+3Al6Si6O18(BO3)3(OH)3F, is a new mineral species of the tourmaline supergroup from alluvial tin deposits near Steinberg, Zschorlau, Erzgebirge (Saxonian Ore Mountains), Saxony, Germany, and from pegmatites near Grasstein (area from Mittewald to Sachsenklemme), Trentino, South Tyrol, Italy. Fluor-schorl was formed as a pneumatolytic phase and in high-temperature hydrothermal veins in granitic pegmatites. Crystals are black (pale brownish to pale greyish-bluish, if distance (r2 = 0.93). This correlation indicates that Fe2+-rich tourmalines from the investigated localities clearly tend to have a F-rich or F-dominant composition. A further strong positive correlation (r2= 0.82) exists between the …

Response Of Plant Height, Species Richness And Aboveground Biomass To Flooding Gradient Along Vegetation Zones In Floodplain Wetlands, Northeast China, Yanjing Lou, Yanwen Pan, Chuanyu Gao, Ming Jiang, Xianguo Lu, Y. Jun Xu

Faculty Publications

Flooding regime changes resulting from natural and human activity have been projected to affect wetland plant community structures and functions. It is therefore important to conduct investigations across a range of flooding gradients to assess the impact of flooding depth on wetland vegetation. We conducted this study to identify the pattern of plant height, species richness and aboveground biomass variation along the flooding gradient in floodplain wetlands located in Northeast China. We found that the response of dominant species height to the flooding gradient depends on specific species, i.e., a quadratic response for Carex lasiocarpa, a negative correlation for Calamagrostis …

Climate, Habitat Associations And The Potential Distributions Of Neotropical Birds: Implications For Diversification Across The Andes, Carlos Daniel Cadena, Carlos A. Pedraza, Robb T. Brumfield

Faculty Publications

Contrary to the long-held view that the uplift of the Andes spurred biotic diversification by causing vicariance across multiple lineages with formerly continuous distributions, recent work suggests that dispersal across the Andes occurring after major uplift episodes was a major driver of speciation in Neotropical birds, with the ability of lineages to persist and disperse in the landscape being strong predictors of speciation. However, where and when dispersal events across the Andes occurred is unknown, and the role of climatic fluctuations and associated shifts in vegetation in promoting cross-Andes dispersal at different moments remains to be studied. We used models …

Taking The Oceanfront Lot, Josh Eagle

Faculty Publications

Oceanfront landowners and states share a property boundary located between the wet and dry parts of the shore. This legal coastline is different from an ordinary land boundary. First, on sandy beaches, the line is constantly in flux, and it cannot be marked except momentarily. Without the help of a surveyor and a court, neither the landowner nor a citizen walking down the beach has the ability to know exactly where the line lies. This uncertainty means that, as a practical matter, ownership of some part of the beach is effectively shared. Second, the common law establishes that the owner …

Pelvic Sexual Dimorphism Among Species Monomorphic In Body Size: Relationship To Relative Newborn Body Mass, Robert G. Tague

Faculty Publications

Females have larger pelves than males among eutherians to mitigate obstetrical difficulty. This study addresses 3 issues concerning pelvic sexual dimorphism using 8 species that are sexually monomorphic in nonpelvic size: Aotus azarae, Castor canadensis, Dasypus novemcinctus, Hylobates lar, Saguinus geoffroyi, Sciurus carolinensis, Sylvilagus floridanus, and Urocyon cinereoargenteus. Using published data to compute the index of relative newborn body mass (RNBM = [newborn body mass/adult female body mass]100%) for 266 eutherian species, A. azarae, H. lar, and S. geoffroyi are characterized as giving birth to relatively large newborns and the other 5 species as giving birth to relatively small newborns. …

The Soil And Plant Biogeochemistry Sampling Design For The National Ecological Observatory Network, Eve-Lyn S. Hinckley, Gordon B. Bonan, Gabriel J. Bowen, Benjamin P. Colman, Paul A. Duffy, Christine L. Goodale, Benjamin Z. Houlton, Erika Marin-Spiotta, Kiona Ogle, Scott V. Ollinger, Eldor A. Paul, Peter M. Vitousek, Kathleen C. Weathers, David G. Williams

Faculty Publications

Human impacts on biogeochemical cycles are evident around the world, from changes to forest structure and function due to atmospheric deposition, to eutrophication of surface waters from agricultural effluent, and increasing concentrations of carbon dioxide (CO2) in the atmosphere. The National Ecological Observatory Network (NEON) will contribute to understanding human effects on biogeochemical cycles from local to continental scales. The broad NEON biogeochemistry measurement design focuses on measuring atmospheric deposition of reactive mineral compounds and CO2 fluxes, ecosystem carbon (C) and nutrient stocks, and surface water chemistry across 20 eco‐climatic domains within the United States for 30 yr. Herein, we …

Prediction Of The Export And Fate Of Global Ocean Net Primary Production: The Exports Science Plan, David A. Siegel, Ken O. Buesseler, Michael J. Behrenfeld, Claudia R. Benitez-Nelson, Emmanuel Boss, Mark A. Brzezinski, Adrian Burd, Craig A. Carlson, Eric A. D'Asaro, Scott C. Doney, Mary J. Perry, Rachel H. R. Stanley, Deborah K. Steinberg

Faculty Publications

Ocean ecosystems play a critical role in the Earth's carbon cycle and the quantification of their impacts for both present conditions and for predictions into the future remains one of the greatest challenges in oceanography. The goal of the EXport Processes in the Ocean from Remote Sensing (EXPORTS) Science Plan is to develop a predictive understanding of the export and fate of global ocean net primary production (NPP) and its implications for present and future climates. The achievement of this goal requires a quantification of the mechanisms that control the export of carbon from the euphotic zone as well as …

Objective Research? Information Literacy Instruction Perspectives, Terry Dwain Robertson

Faculty Publications

Common understandings of “objective” research include values such as “factual” and “interpretive neutrality”. There is a growing consensus that the person, the “subject”, doing the research counts as much as if not more in the interpretive outcomes than the “facts” alone, and that “interpretive neutrality” is not possible.

The presentation offers an alternative framing of “objective research” as the grounded, intentional and savvy analysis of an “object” in conversation with a community of peers/experts for the purpose of creating knowledge.

Following Ferraris’ ontology, three classes of “objects” exist (1) Natural objects: exist whether or not a person notices them. Example: …

Venetian Cartography And The Globes Of The Tommaso Rangone Monument In San Giuliano, Venice, Jill E. Carrington

Faculty Publications

Highly-specific reliefs of a terrestrial and a celestial globe flank the statue of physician and university professor Tommaso Rangone in his funerary monument on the facade of San Giuliano in Venice (1554-1557, installed c. 1558). The essay is the first to examine the strikingly specific imagery of the globes; it compares them to actual maps and globes, argues that the features of the globes were inspired by contemporary maps and globes owned by Rangone himself, relates the globes to the emergence of globe paris and situates them within the thriving production of maps, atlases and treatises at the time they …